ഴ10-243-5716 301-753-8270CHARLES COUNTY …...professional certification. i hereby certify that...
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ഴ10-243-5716 301-753-8270CHARLES COUNTY …...professional certification. i hereby certify that these documents were prepared or approved by me, and that i am a duly licens\d professional
A. GENERAL 1. ALL WORK SHALL BE IN ACCORDANCE WITH THE LATEST CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH ALL WORK SHALL BE IN ACCORDANCE WITH THE LATEST CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH MANAGEMENT SPECIFICATIONS MANUAL, THE LATEST CHARLES COUNTY DETAIL MANUAL AND IN ACCORDANCE WITH CURRENT COUNTY ORDINANCES. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO OBTAIN COPIES OF ALL PERTINENT COUNTY PUBLICATIONS FROM PLANNING AND GROWTH MANAGEMENT. 2. THE LOCATION OF EXISTING UTILITIES HAS BEEN OBTAINED FROM THE BEST AVAILABLE SOURCES. IT SHALL BE THE THE LOCATION OF EXISTING UTILITIES HAS BEEN OBTAINED FROM THE BEST AVAILABLE SOURCES. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO VERIFY BOTH THE HORIZONTAL AND VERTICAL LOCATION BEFORE BEGINNING CONSTRUCTION. 3. CONTRACTOR IS RESPONSIBLE FOR CONTACTING "MISS UTILITY" AT 1-800-257-7777, 48 HOURS PRIOR TO ANY EXCAVATION CONTRACTOR IS RESPONSIBLE FOR CONTACTING "MISS UTILITY" AT 1-800-257-7777, 48 HOURS PRIOR TO ANY EXCAVATION WORK. 4. CONTRACTOR IS RESPONSIBLE FOR CONTACTING THE CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH CONTRACTOR IS RESPONSIBLE FOR CONTACTING THE CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH MANAGEMENT/DEVELOPMENT SERVICES DIVISION 48 HOURS PRIOR TO THE START OF ALL CONSTRUCTION IN ACCORDANCE TO ALL PERMITS ISSUED @ 301-645-0700.
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CHARLES COUNTY GOVERNMENT
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MWRF FINAL CLARIFIER IMPROVEMENTS
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PROJECT NO.-UN XXX
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NAD 83/(NSRS 2007)
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COORDINATE SYSTEM
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MARYLAND STATE PLANE
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N
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GRAPHIC SCALE
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TITLE SHEET
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1
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0
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400'
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800'
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SCALE:
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1" = 400'
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I/WE HEREBY CERTIFY THAT ALL CONSTRUCTION INCLUDING AND NOT LIMITED TO DRAINAGE, GRADING, STORMWATER MANAGEMENT, ROADS AND WATER & SEWER WILL BE DONE PURSUANT TO THIS PLAN, ALL LOCAL, STATE AND FEDERAL CODES AND REQUIREMENTS, CHARLES COUNTY STANDARDS AND SPECIFICATIONS FOR CONSTRUCTION MANUAL, CHARLES COUNTY DETAILS, APPROVED SITE AND/OR PRELIMINARY PLANS, OTHER PGM ORDINANCES & REGULATIONS AND ANY OTHER REQUIREMENTS IMPOSED BY CHARLES COUNTY. I/WE HEREBY AUTHORIZE A RIGHT OF ENTRY TO ANY CHARLES COUNTY, LOCAL, STATE OR FEDERAL PERSONNEL FOR THE PURPOSE OF INSPECTION EVALUATION, OR OBSERVATION OF ANY CONSTRUCTION ACTIVITY RELATED TO THE PROJECT.
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I HEREBY CERTIFY THAT THIS PLAN MEETS OR EXCEEDS THE REQUIREMENTS OF STORMWATER MANAGEMENT AND STORM DRAIN ORDINANCE, FLOODPLAIN MANAGEMENT ORDINANCE, GRADING ORDINANCE, ROAD ORDINANCE, WATER & SEWER ORDINANCE, THE 2000 MARYLAND STORMWATER DESIGN MANUAL, VOLUMES I & II, ALL STATE AND FEDERAL CODES, THE CHARLES COUNTY STANDARDS AND SPECIFICATIONS FOR CONSTRUCTION MANUAL, THE CHARLES COUNTY DETAILS MANUAL, THE APPROVED SITE PLAN OR PRELIMINARY PLAN, OTHER PGM ORDINANCES AND REGULATIONS AND ANY CONDITIONS IMPOSED BY CHARLES COUNTY.
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MATTAWOMAN WATER RECLAMATION FACILITY (MWRF)
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MATTAWOMAN WATER RECLAMATION FACILITY (MWRF)
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0
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2000'
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4000'
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SCALE:
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1" = 2000'
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HAWTHORNE RD
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%%USHEET INDEX
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SHEET DRAWING DRAWING NAME NO. TITLE NO. TITLE TITLE T-1 1 TITLE SHEET 1 TITLE SHEET TITLE SHEET S-1 2 GENERAL STRUCTURAL NOTES, CODES, LOADS AND ABBREVIATIONS 2 GENERAL STRUCTURAL NOTES, CODES, LOADS AND ABBREVIATIONS GENERAL STRUCTURAL NOTES, CODES, LOADS AND ABBREVIATIONS S-2 3 FINAL CLARIFIER PLAN AND SECTIONS 3 FINAL CLARIFIER PLAN AND SECTIONS FINAL CLARIFIER PLAN AND SECTIONS M-1 4 SITE PLAN 4 SITE PLAN SITE PLAN M-2 5 FINAL CLARIFIER PLAN AND SECTION 5 FINAL CLARIFIER PLAN AND SECTION FINAL CLARIFIER PLAN AND SECTION E-1 6 CLARIFIER PLAN AND DETAILS6 CLARIFIER PLAN AND DETAILSCLARIFIER PLAN AND DETAILS
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T-1
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XXXXXX
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XXXXXX
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NO.
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OF
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DRAWING
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SHEET
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SCALE
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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MWRF FINAL CLARIFIER IMPROVEMENTS
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
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301-609-7400
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AS SHOWN
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PROJECT NO.-UN XXX
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MWRF FINAL CLARIFIER IMPROVEMENTS 100%%% SUBMITTAL
“ ”
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SWELLABLE TYPE WATERSTOP
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INTENTIONALLY ROUGHEN SURFACE
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WALL OR SLAB
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EXISTING EFFLUENT BOX OPENING IN CLARIFIER WALL
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EXISTING OPENING IN WALL
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1" BAR (TYP)
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1/2" PLATE
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3/8" PLATE (TYPICAL)
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1/4
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1/4
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NEW EFFLUENT CHANNEL BOTTOM SLAB (SEE SECTIONS FOR REINFORCEMENT)
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NOTES: 1. PROVIDE DETAIL AT EXISTING EFFLUENT BOX OPENING PROVIDE DETAIL AT EXISTING EFFLUENT BOX OPENING IN CLARIFIER WALL. 2. ALL SCREEN MATERIAL AND ANCHORS MUST BE TYPE ALL SCREEN MATERIAL AND ANCHORS MUST BE TYPE 316 STAINLESS STEEL.
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NEW EFFLUENT SAFETY SCREEN IN EXISTING WALL OPENING
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EXISTING CLARIFIER WALL
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#5@12 MEASURED ALONG OUTER WALL IN PLACE OF NORMAL RADIAL TOP BAR
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#5 EPOXY ADHESIVE DOWEL SPACED AT 6" ON CENTER, IN PLACE OF NORMAL RADIAL DOWEL
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1/2" STAINLESS STEEL EXPANSION BOLT WITH 3 1/4" MINIMUM EMBEDMENT (TYP) (HILTI KWIK BOLT TZ OR EQUAL)
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STANDARD HOOK (TYP)
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SWELLABLE TYPE WATERSTOP (TYP)
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(2)-L5x5x3/8 WITH VERTICAL SHORT SLOTTED HOLES FOR 3/4" BOLTSAND (2) 11/16" HOLESIN OUTSTANDING LEGS FOR 1/2" EXPANSION BOLTS
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PL1/2"x8"x2'-4" WITH VERTICAL STANDARD SHORT SLOTTED HOLES FOR 3/4" BOLTSTO MATCH ANGLES
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PL3/8"x3"x0'-9 1/2" CENTERED ON VERTICAL PLATE WITH (2)-11/16" HOLES @ 6 1/2" O.C.
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3/16
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3/16
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NO SCALE
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S-1
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2
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AND ABBREVIATIONS
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GENERAL STRUCTURAL NOTES, CODES, LOADS,
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NO.
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OF
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DRAWING
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SHEET
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SCALE
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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MWRF FINAL CLARIFIER IMPROVEMENTS
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
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301-609-7400
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PROJECT NO.-UN XXX
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MWRF FINAL CLARIFIER IMPROVEMENTS 100%%% SUBMITTAL
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(NON-EPOXY COATED)
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TENSION LAP SPLICE AND STANDARD HOOK LENGTH (ACI 318-14/ACI 350-06)
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STANDARD 180° AND 90° END HOOKS
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LAP SPLICE LENGTH
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MINIMUM TENSION EMBEDMENTS
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BAR SIZE
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SLAB AND WALL
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BEAM
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STD 90° HOOK
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STD 180° HOOK
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SOFT METRIC
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ENGLISH
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OTHER BARS
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TOP BARS
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OTHER BARS
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TOP BARS
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ldh
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12db
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ldh
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4db
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#13
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#16
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#19
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#22
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#25
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#29
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#32
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#36
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#11
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#10
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#9
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#8
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#7
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#6
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#5
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#4
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14"
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18"
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21"
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35"
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44"
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54"
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66"
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79"
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103"
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86"
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70"
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57"
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45"
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28"
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23"
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19"
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26"
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35"
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51"
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59"
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66"
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74"
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82"
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107"
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96"
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86"
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76"
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67"
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46"
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34"
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23"
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7"
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8"
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10"
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11"
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13"
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15"
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16"
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18"
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17"
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16"
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14"
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12"
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11"
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9"
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8"
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6"
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6"
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6"
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5"
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4"
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4"
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3"
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3"
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3"
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SLAB AND WALL:
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6" MINIMUM REBAR SPACING WITH CONCRETE COVER = 1.5" CLEAR
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BEAM:
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MINIMUM CLEAR SPACING BETWEEN BARS = 1.5 db (1.5" MIN). MINIMUM CONCRETE COVER = 1.5" CLEAR. MINIMUM STIRRUP #4@12" PROVIDED.
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TOP BAR:
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TOP BAR FOR SLAB AND BEAM SHALL BE DEFINED AS REINFORCEMENT SO PLACED THAT MORE THAN 12" OF CONCRETE IS CAST BELOW THE SPLICE.
SIDE COVER SHALL NOT BE LESS THAN 2.5" END COVER ON 90° HOOK SHALL NOT BE LESS THAN 2"
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4db (2 " MIN.)12" MIN.)
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CRITICAL SECTION
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CRITICAL SECTION
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NOT TO SCALE
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TYPICAL CONSTRUCTION JOINT
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S-1
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C
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ADDITIONAL REINFORCING AROUND OPENINGS
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1 - #6 X 4'-0" LONG, E.F. DIAG.
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ROUND, SQUARE OR RECTANGULAR OPENING
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SCALE: NONE
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NOTES:
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1. FOR OPENINGS LESS THAN 12" DIA., FOR OPENINGS LESS THAN 12" DIA., NO ADDITIONAL REINFORCING IS REQUIRED PROVIDED NO REINFORCING IS INTERRUPTED BY THE OPENING 2. PROVIDE ADDITIONAL REINFORCING, PROVIDE ADDITIONAL REINFORCING, (MINIMUM OF ONE-HALF THE NUMBER OF PRINCIPLE REINFORCING BARS INTERRUPTED BY THE OPENING) ON EACH SIDE AND EACH FACE OF THE OPENING.
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S-1
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A
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S-1
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B
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GENERAL 1. FIELD VERIFY ALL DIMENSIONS, LOCATIONS, AND ELEVATIONS SHOWN ON THE FIELD VERIFY ALL DIMENSIONS, LOCATIONS, AND ELEVATIONS SHOWN ON THE CONTRACT DRAWINGS FOR EXISTING STRUCTURES. NOTIFY THE ENGINEER OF ALL DISCREPANCIES BEFORE PROCEEDING WITH THE WORK. 2. NOT ALL OPENINGS IN THE STRUCTURAL WORK ARE SHOWN. REVIEW ALL NOT ALL OPENINGS IN THE STRUCTURAL WORK ARE SHOWN. REVIEW ALL DRAWINGS FROM OTHER DISCIPLINES AND COORDINATE ALL OPENINGS AND EMBEDDED ITEMS SUCH AS SLEEVES, ANCHORS, CONDUITS, ETC. THAT WILL BE INCORPORATED INTO THE STRUCTURAL WORK. 3. COORDINATE ALL ACTIVITIES, INCLUDING THOSE OF SUBCONTRACTORS, WITH COORDINATE ALL ACTIVITIES, INCLUDING THOSE OF SUBCONTRACTORS, WITH THE COUNTY'S ACTIVITIES. 4. THE DRAWINGS SHOW THE FINAL CONDITION OF THE STRUCTURES. STABILIZE THE DRAWINGS SHOW THE FINAL CONDITION OF THE STRUCTURES. STABILIZE THE STRUCTURES DURING TEMPORARY CONDITIONS. CONCRETE 1. PROVIDE MIX #6 CONCRETE AS DEFINED IN THE CHARLES COUNTY STANDARD PROVIDE MIX #6 CONCRETE AS DEFINED IN THE CHARLES COUNTY STANDARD SPECIFICATIONS SECTION 03310 “PORTLAND CEMENT CONCRETE” WITH A PORTLAND CEMENT CONCRETE” WITH A WITH A MINIMUM COMPRESSIVE STRENGTH OF 4500 PSI AT 28 DAYS, EXCEPT PSI AT 28 DAYS, EXCEPT PSI AT 28 DAYS, EXCEPT PROVIDE MAXIMUM WATER-CEMENTITIOUS RATIO OF 0.42. 2. PROVIDE CRYSTALLINE WATERPROOFING ADMIXTURE IN ALL CONCRETE, PROVIDE CRYSTALLINE WATERPROOFING ADMIXTURE IN ALL CONCRETE, EXCEPT THAT INDICATED AS FILL. 3. DETAIL AND CONSTRUCT REINFORCED CONCRETE IN ACCORDANCE WITH DETAIL AND CONSTRUCT REINFORCED CONCRETE IN ACCORDANCE WITH AMERICAN CONCRETE INSTITUTE ACI 301, “SPECIFICATION FOR STRUCTURAL SPECIFICATION FOR STRUCTURAL CONCRETE.” 4. DETAIL REINFORCING STEEL IN ACCORDANCE WITH AMERICAN CONCRETE DETAIL REINFORCING STEEL IN ACCORDANCE WITH AMERICAN CONCRETE INSTITUTE SP-66, "ACI DETAILING MANUAL," WHICH INCLUDES ACI 315, "DETAILS AND DETAILING OF CONCRETE REINFORCEMENT". 5. PROVIDE REINFORCEMENT CONFORMING TO ASTM A615, GRADE 60, PROVIDE REINFORCEMENT CONFORMING TO ASTM A615, GRADE 60, DEFORMED BARS. 6. PROVIDE NORMAL WEIGHT AGGREGATES CONFORMING TO ASTM C33, CLASS PROVIDE NORMAL WEIGHT AGGREGATES CONFORMING TO ASTM C33, CLASS 4S. 7. UNLESS NOTED OTHERWISE ON THE DRAWINGS, THE CONCRETE COVER FOR UNLESS NOTED OTHERWISE ON THE DRAWINGS, THE CONCRETE COVER FOR REINFORCEMENT MUST BE 2". 8. SUBMIT REINFORCING STEEL DETAILS (SHOP DRAWINGS) AND RECEIVE SUBMIT REINFORCING STEEL DETAILS (SHOP DRAWINGS) AND RECEIVE APPROVAL BEFORE PROCEEDING WITH FABRICATION. 9. CHAMFER ALL EXPOSED CONCRETE EDGES 3/4" UNLESS OTHERWISE NOTED CHAMFER ALL EXPOSED CONCRETE EDGES 3/4" UNLESS OTHERWISE NOTED 10. DETAIL ALL SPLICES AND STANDARD HOOKS FOR REINFORCING STEEL NOT DETAIL ALL SPLICES AND STANDARD HOOKS FOR REINFORCING STEEL NOT DIMENSIONED ON THE DRAWINGS AS TABULATED ON SHEET S-1. 11. PLACE CONCRETE BETWEEN INDICATED AND APPROVED JOINTS, ALLOWING A PLACE CONCRETE BETWEEN INDICATED AND APPROVED JOINTS, ALLOWING A MINIMUM ELAPSED PERIOD OF 48 HOURS BETWEEN ADJACENT PLACEMENTS. 12. PROVIDE JOINTS AS DETAILED ON THE DRAWINGS, AND ON APPROVED SHOP PROVIDE JOINTS AS DETAILED ON THE DRAWINGS, AND ON APPROVED SHOP DRAWINGS. NO ADDITIONAL JOINTS SHALL BE USED NOR ANY OMITTED EXCEPT BY WRITTEN AUTHORIZATION FROM THE ENGINEER. APPROVED ADDITIONAL JOINTS MUST NOT RESULT IN ADDITIONAL EXPENSE TO THE COUNTY. 13. PROVIDE CONSTRUCTION JOINT INTERFACE CLEAN AND FREE OF LAITANCE. PROVIDE CONSTRUCTION JOINT INTERFACE CLEAN AND FREE OF LAITANCE. WHERE INDICATED ON THE DRAWINGS, INTENTIONALLY ROUGHEN CONSTRUCTION JOINTS TO A FULL AMPLITUDE OF 1/4 INCH. IMMEDIATELY BEFORE NEW CONCRETE IS PLACED, CONSTRUCTION JOINTS MUST BE PRE-WETTED AND STANDING WATER REMOVED. 14. WHERE A SLAB IS SLOPED (TOP AND/OR BOTTOM), PROVIDE SLOPED WHERE A SLAB IS SLOPED (TOP AND/OR BOTTOM), PROVIDE SLOPED REINFORCING STEEL PARALLEL TO THE CONCRETE SURFACE. 15. SIZE AND LOCATE ANCHOR BOLTS AND OTHER EMBEDDED ITEMS AS SIZE AND LOCATE ANCHOR BOLTS AND OTHER EMBEDDED ITEMS AS INDICATED AND TO SUIT EQUIPMENT FURNISHED. 16. REVIEW ALL DRAWINGS FROM OTHER DISCIPLINES AND COORDINATE ALL REVIEW ALL DRAWINGS FROM OTHER DISCIPLINES AND COORDINATE ALL OPENINGS AND EMBEDDED ITEMS SUCH AS SLEEVES, ANCHORS, CONDUIT, ETC. THAT WILL BE INCORPORATED INTO CONCRETE WORK. 17. PROVIDE SWELLABLE TYPE WATERSTOPS AS SHOWN ON THE DRAWINGS. PROVIDE SWELLABLE TYPE WATERSTOPS AS SHOWN ON THE DRAWINGS. 18. COLD WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH COLD WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH ACI 306R, ACI 306.1, AND THE SPECIFICATIONS. 19. HOT WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH ACI HOT WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH ACI 305R, ACI 305.1, AND THE SPECIFICATIONS. ADHESIVE FOR REBAR DOWELS 1. THE ADHESIVE ANCHOR SYSTEM USED FOR POST INSTALLED ANCHORAGE TO THE ADHESIVE ANCHOR SYSTEM USED FOR POST INSTALLED ANCHORAGE TO CONCRETE MUST CONFORM TO THE REQUIREMENTS OF THE MOST RECENTLY PUBLISHED ACI 355.4, "ACCEPTANCE CRITERIA FOR QUALIFICATION OF POST-INSTALLED ADHESIVE ANCHORS IN CONCRETE AND COMMENTARY." EACH ADHESIVE ANCHOR SYSTEM MUST SATISFY THE STRENGTH REQUIREMENTS FOR ITS USE. BULK-MIXED ADHESIVES ARE NOT PERMITTED. ADHESIVE ANCHORAGE DESIGN IS IN ACCORDANCE WITH CHAPTER 17 OF ACI 318-14, FOR ALL OTHER INFORMATION SEE SPECIFICATION SECTION 05510. ADHESIVE ANCHORS IN CONCRETE MUST BE QUALIFIED FOR USE IN CRACKED CONCRETE IN ACCORDANCE WITH ACI 355.4. THE FOLLOWING ANCHOR SYSTEMS, OR APPROVED EQUALS, MUST BE USED: A. ANCHORAGE TO CONCRETE ANCHORAGE TO CONCRETE i. HILTI HIT-HY 200 ADHESIVE HILTI HIT-HY 200 ADHESIVE 2. CONCRETE AT THE TIME OF ADHESIVE ANCHOR INSTALLATION MUST HAVE A CONCRETE AT THE TIME OF ADHESIVE ANCHOR INSTALLATION MUST HAVE A MINIMUM AGE OF 21 DAYS. 3. INSTALL ADHESIVE ANCHORS WITH A MINIMUM EDGE DISTANCE OF 10 INCHES INSTALL ADHESIVE ANCHORS WITH A MINIMUM EDGE DISTANCE OF 10 INCHES TO ANY FREE EDGE OF CONCRETE. 4. INSTALL ADHESIVE ANCHORS WITH TRAINED QUALIFIED PERSONNEL. INSTALL INSTALL ADHESIVE ANCHORS WITH TRAINED QUALIFIED PERSONNEL. INSTALL ADHESIVE ANCHORS IN ACCORDANCE WITH THE MANUFACTURER'S PRINTED INSTALLATION INSTRUCTIONS. 5. PROVIDE THOROUGHLY CLEANED ANCHOR HOLES PRIOR TO ADHESIVE PROVIDE THOROUGHLY CLEANED ANCHOR HOLES PRIOR TO ADHESIVE INJECTION, AS REQUIRED BY THE MANUFACTURER'S PRINTED INSTALLATION INSTRUCTIONS. PROTECT DRILLED AND CLEANED ANCHOR HOLES FROM CONTAMINATION UNTIL THE ADHESIVE IS INSTALLED. 6. PROVIDE ANCHORS CLEAN, OIL-FREE, AND FREE OF LOOSE RUST, PAINT, OR PROVIDE ANCHORS CLEAN, OIL-FREE, AND FREE OF LOOSE RUST, PAINT, OR OTHER COATINGS. 7. PROVIDE INSTALLED ADHESIVE ANCHORS SECURELY FIXED IN-PLACE TO PROVIDE INSTALLED ADHESIVE ANCHORS SECURELY FIXED IN-PLACE TO PREVENT DISPLACEMENT WHILE THE ADHESIVE CURES. 8. ARRANGE FOR AN ANCHOR MANUFACTURER'S REPRESENTATIVE TO PROVIDE ARRANGE FOR AN ANCHOR MANUFACTURER'S REPRESENTATIVE TO PROVIDE ONSITE INSTALLATION TRAINING FOR ALL OF THEIR ANCHORING PRODUCTS SPECIFIED. THE ENGINEER MUST RECEIVE DOCUMENTED CONFIRMATION THAT ALL OF THE CONTRACTOR'S PERSONNEL WHO INSTALL ANCHORS ARE TRAINED PRIOR TO THE COMMENCEMENT OF INSTALLING ANCHORS. 9. PERSONNEL INSTALLING HORIZONTAL OR OVERHEAD ADHESIVE DOWELS MUST PERSONNEL INSTALLING HORIZONTAL OR OVERHEAD ADHESIVE DOWELS MUST BE CERTIFIED BY AN APPLICABLE CERTIFICATION PROGRAM. CERTIFICATION MUST INCLUDE WRITTEN AND PERFORMANCE TESTS IN ACCORDANCE WITH THE ACI/CRSI ADHESIVE ANCHOR INSTALLER CERTIFICATION PROGRAM, OR EQUIVALENT. DESIGN LOADS 1. BUILDING RISK CATEGORY: III BUILDING RISK CATEGORY: III 2. DEAD LOADS: DEAD LOADS: A. STRUCTURES - ACTUAL WEIGHT. STRUCTURES - ACTUAL WEIGHT. 3. FLUID LOADS: FLUID LOADS: A. PROCESS LIQUID - 62.4 PCF PROCESS LIQUID - 62.4 PCF CODES AND STANDARDS 4. INTERNATIONAL BUILDING CODE IBC 2015 INCLUDING THE MODIFICATIONS INTERNATIONAL BUILDING CODE IBC 2015 INCLUDING THE MODIFICATIONS MADE BY CHARLES COUNTY. 5. AMERICAN CONCRETE INSTITUTE ACI-318 (2014), “BUILDING CODE AMERICAN CONCRETE INSTITUTE ACI-318 (2014), “BUILDING CODE BUILDING CODE REQUIREMENTS FOR REINFORCED CONCRETE. 6. AMERICAN CONCRETE INSTITUTE ACI-350 (2006), “ENVIRONMENTAL AMERICAN CONCRETE INSTITUTE ACI-350 (2006), “ENVIRONMENTAL ENVIRONMENTAL ENGINEERING CONCRETE STRUCTURES”. . 7. AMERICAN SOCIETY OF CIVIL ENGINEERS ASCE 7 (2010), “MINIMUM DESIGN AMERICAN SOCIETY OF CIVIL ENGINEERS ASCE 7 (2010), “MINIMUM DESIGN MINIMUM DESIGN LOADS FOR BUILDING AND OTHER STRUCTURES.” ABBREVIATIONS ALUM ALUMINUM ALUMINUM ARCH ARCHITECTURAL ARCHITECTURAL CLR CLEAR CLEAR CMU CONCRETE MASONRY UNIT CONCRETE MASONRY UNIT COL COLUMN COLUMN CONC CONCRETE CONCRETE DWG DRAWING DRAWING DIA DIAMETER DIAMETER EL ELEVATION ELEVATION E.F EACH FACE EACH FACE E.W EACH WAY EACH WAY EX EXISTING EXISTING EXP EXPANSION EXPANSION GA GAUGE GAUGE GALV GALVANIZED GALVANIZED HP HIGH POINT HIGH POINT JT JOINT JOINT LB POUND POUND LG LONG LONG LP LOW POINT LOW POINT MAX MAXIMUM MAXIMUM MECH MECHANICAL MECHANICAL MIN MINIMUM MINIMUM PCF POUNDS PER CUBIC FOOT POUNDS PER CUBIC FOOT PL PLATE PLATE PSF POUND PER SQUARE FOOT POUND PER SQUARE FOOT PSI POUND PER SQUARE INCH POUND PER SQUARE INCH OC ON CENTER ON CENTER OPP OPPOSITE OPPOSITE SCH SCHEDULE SCHEDULE SHT SHEET SHEET SQ SQUARE SQUARE SS STAINLESS STEEL STAINLESS STEEL TOS TOP OF STEEL TOP OF STEEL TOW TOP OF WALL TOP OF WALL T&B TOP AND BOTTOM TOP AND BOTTOM TYP TYPICAL TYPICAL T/ TOP OF TOP OF W/ WITHWITH
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NOT TO SCALE
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TYPICAL EFFLUENT BOX OPENING SCREEN
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S-1
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D
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E
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S-1
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NOT TO SCALE
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SECTION
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S-1
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E
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NOT TO SCALE
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DETAIL
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S-1
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F
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S-1
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F
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NEW CONCRETE EFFLUENT TROUGH (ALONG FULL PERIMETER), SEE NOTE 5
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REMOVE EXISTING 2"± BOTTOMSLAB GROUT OVERLAY. PROVIDE NEW SWEPT-IN GROUT OVERLAY USING SCREEDS ATTACHED TO THE NEW SLUDGE-SWEEPING PORTION OF THE NEW CLARIFIER MECHANISM. AFTER CURING, APPLY CORROSION-RESISTANT EPOXY COATING. SEE SPECIFICATION SECTION 09960.
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C CLARIFIER
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L
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C CLARIFIER
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L
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EXISTING CANTILEVERED CONCRETE ARM (TYPICAL)
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CONSTRUCTION JOINT IN TROUGH SLAB AND WALL, LOCATE AT MIDSPAN BETWEEN EVERY OTHER BRACKET (TYPICAL)
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EXISTING EXPANSION JOINT IN SLAB AND GROUT, SEE NOTE 2
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#5@12 MEASURED ALONG OUTER WALL
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4-#4
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#4@6T&B
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#5 EPOXY ADHESIVE DOWEL SPACED AT 12" ON CENTER
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ROUGHEN SURFACE TO 1/4" AMPLITUDE
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SWELLABLE TYPE WATERSTOP (TYP)
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FOR WEIR AND BAFFLE DETAIL SEE MECHANICAL SHEETS
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EL 17.41'±
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EL 13.27'±
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STANDARD HOOK
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CONSTRUCTION JOINT
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EL 15.58'
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NON-SHRINK GROUT, ELEVATION VARIES
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ROUGHEN SURFACE TO 1/4" AMPLITUDE
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2-#4 EPOXY ADHESIVE DOWELS APPROXIMATELY CENTERED ON EXISTING CONCRETE BRACKET. LOCATE TO AVOID EXISTING REINFORCEMENT.
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NOTE: NORMAL TROUGH NORMAL TROUGH REINFORCEMENT NOT SHOWN
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EXISTING REMAINING CONCRETE BRACKET
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EXISTING CLARIFIER WALL
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EL 13.27'±
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FOR WEIR AND BAFFLE DETAIL SEE MECHANICAL SHEETS
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EL 17.41'±
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S-2
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1
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EXISTING CLARIFIER WALL
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(SEE NOTE)
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EXISTING #4@12 TIES
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EXISTING 3-#7
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(TYP)
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NOTE: LOCATE EXISTING #4 TIE USING NON-DESTRUCTIVE METHODS AND ADJUST THE LOCATION OF THE CUT TO PROVIDE 2" MINIMUM CLEARANCE.
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SAW-CUT OR WIRE-CUT
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12±
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1 1116±
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EXISTING 2-#5
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EXISTING 3-#5
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(MIN)
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EXISTING REBAR
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EXISTING #4 TIE
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CORE DRILL 1 1/2" MIN DIAMETER HOLE AROUND EXISTING REBAR, 2" MIN DEEP. REMOVE CONCRETE AND BAR INSIDE OF HOLE. FILL HOLE WITH NO METALLIC NON-SHRINK GROUT (TYPICAL 8 PLACES)
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S-2
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3
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FINAL CLARIFIER PLAN AND SECTIONS
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NO.
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OF
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DRAWING
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SHEET
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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MWRF FINAL CLARIFIER IMPROVEMENTS
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
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301-609-7400
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AS SHOWN
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PROJECT NO.-UN XXX
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MWRF FINAL CLARIFIER IMPROVEMENTS 100%%% SUBMITTAL
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SCALE: NO SCALE
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FINAL CLARIFIER PLAN
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B
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S-2
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A
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S-2
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C
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S-2
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1. SEE SHEET S-1 FOR STRUCTURAL GENERAL NOTES AND SEE SHEET S-1 FOR STRUCTURAL GENERAL NOTES AND TYPICAL DETAILS. 2. DO NOT DAMAGE EXISTING SLAB EXPANSION JOINT MATERIAL. DO NOT DAMAGE EXISTING SLAB EXPANSION JOINT MATERIAL. PROVIDE EXPANSION JOINT FILLER AND SEALANT IN GROUT OVERLAY, WITH SAME WIDTH AS SLAB EXPANSION JOINT, AT LOCATION OF EXISTING JOINT. FOR BIDDING PURPOSES, ASSUME 150 LF OF EXISTING SLAB EXPANSION JOINT MUST BE REPLACED. JOINT FILLER MATERIAL MUST COMPLY WITH ASTM D1752, TYPE III PREFORMED, AND FLEXIBLE JOINT SEALANT MUST BE SIKAFLEX 2C NS EZ MIX OR APPROVED EQUAL. 3. EXISTING SLAB CONTAINS RELIEF VALVES TO ALLOW INFLOW EXISTING SLAB CONTAINS RELIEF VALVES TO ALLOW INFLOW OF GROUNDWATER INTO CLARIFIER. DO NOT DAMAGE OR OTHERWISE CAUSE VALVES TO NOT FUNCTION PROPERLY. DE-WATERING MAY BE REQUIRED TO REMOVE EXISTING GROUT AND INSTALL NEW GROUT OVERLAY. 4. IF MORE THAN 2" OF EXISTING GROUT TO BE REMOVED IS IF MORE THAN 2" OF EXISTING GROUT TO BE REMOVED IS ENCOUNTERED, IMMEDIATELY BRING TO THE OWNER'S ATTENTION. 5. PROVIDE SLOPING NON-SHRINK GROUT IN TROUGH. PROVIDE PROVIDE SLOPING NON-SHRINK GROUT IN TROUGH. PROVIDE 8" THICK GROUT AT HIGH POINT, LOCATED 180 DEGREES FROM EXISTING EFFLUENT BOX. UNIFORMLY SLOPE FROM BOTH SIDES OF HIGH POINT TO LOW POINT AT EFFLUENT BOX. 6. KEEP DAILY RECORDS OF EXISTING GROUT THICKNESS AND KEEP DAILY RECORDS OF EXISTING GROUT THICKNESS AND VOLUME DEMOLISHED, AS WELL AS DAILY PHOTOGRAPHS OF GROUT DEMOLITION. SUBMIT DAILY RECORDS AND A DEMOLITION PLAN DRAWING DOCUMENTING EXISTING GROUT THICKNESS TO THE OWNER AND ENGINEER.
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GENERAL SHEET NOTES:
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0
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SCALE:
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4"
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8"
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3" = 1'-0"
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2"
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0
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SCALE:
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3/4" = 1'-0"
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1'
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3'
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2'
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REF: S-2
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SCALE: 3/4" = 1'-0"
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SECTION
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S-2
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A
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NEW WORK
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DEMOLITION
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REF: S-2
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SCALE: 3/4" = 1'-0"
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SECTION
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S-2
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B
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REF: S-2
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SCALE: 3/4" = 1'-0"
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SECTION
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S-2
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C
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REF: S-2
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SCALE: 3" = 1'-0"
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DETAIL
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S-2
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1
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NEW WORK
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LEGEND:
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EXISTING CONSTRUCTION TO BE REMOVED.
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N.T.S.
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M-1
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4
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SITE PLAN
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1
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DEMOLITION NOTES:
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REMOVE ALL OF THE EXISTING CLARIFIER MECHANICAL AND ELECTRICAL COMPONENTS INCLUDING BUT NOT LIMITED TO CLARIFIER SLUDGE AND SCUM COLLECTION EQUIPMENT INCLUDING CENTER PIER, ACCESS BRIDGE, RAILINGS, SLUDGE SCRAPERS, TROUGH, TROUGH SUPPORTS (MODIFY), CONCRETE GROUT FROM THE CLARIFIER SLAB, SCUM BEACH, SCUM BEACH PIPING CONDUIT, LIGHT FIXTURES, LIGHT SWITCH, RECEPTACLES, CONTROL STATIONS AND DISCONNECT SWITCH. DO NOT DAMAGE RELIEF VALVES. REMOVE EXISTING CONDUIT AND WIRE FROM THE BRIDGE MOUNTED DEVICES BACK TO THE EXISTING PULLBOX. REMOVE THE EXISTING FLOCCULATOR POWER AND CONTROL WIRE BACK TO EXISTING MOTOR STARTERS IN EXISTING MOTOR CONTROL CENTER MCC3.
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NO.
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OF
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DRAWING
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SHEET
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SCALE
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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MWRF FINAL CLARIFIER IMPROVEMENTS
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
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301-609-7400
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PROJECT NO.-UN XXX
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MWRF FINAL CLARIFIER IMPROVEMENTS 100%%% SUBMITTAL
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SCALE: NOT TO SCALE
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SITE PLAN
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M-1
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1
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10009
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9/2/16
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LEGEND
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- REMOVE ITEMS IN THE SHADED AREA AND AS NOTED ABOVE.
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GENERAL NOTES:
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1. DIMENSIONS AND ELEVATIONS OF EXISTING STRUCTURES PROVIDED AS REFERENCE ONLY, DIMENSIONS AND ELEVATIONS OF EXISTING STRUCTURES PROVIDED AS REFERENCE ONLY, 2. EXISTING DRAWINGS PROVIDED IN APPENDIX OF SPECIFICATION FOR REFERENCE ONLY. EXISTING DRAWINGS PROVIDED IN APPENDIX OF SPECIFICATION FOR REFERENCE ONLY. 3. CONTRACTOR SHALL VERIFY ALL DIMENSIONS, ELEVATIONS AND SLOPES IN THE FIELD AND CONTRACTOR SHALL VERIFY ALL DIMENSIONS, ELEVATIONS AND SLOPES IN THE FIELD AND SUBMIT TO ENGINEER FOR RECORD. 4. ELEVATIONS SHALL BE TAKEN BY A LICENSED SURVEYOR. ELEVATIONS SHALL BE TAKEN BY A LICENSED SURVEYOR. 5. ELEVATIONS AND DIMENSIONS SHALL BE PROVIDED IN THE RECORD DRAWINGS. ELEVATIONS AND DIMENSIONS SHALL BE PROVIDED IN THE RECORD DRAWINGS. 6. ALL DIMENSIONS AND ELEVATIONS REQUIRED FOR NEW EQUIPMENT/WORK SHALL BE ALL DIMENSIONS AND ELEVATIONS REQUIRED FOR NEW EQUIPMENT/WORK SHALL BE CONFIRMED BY THE CONTRACTOR AND SUPPLIED BY THE EQUIPMENT MANUFACTURER PRIOR TO PERFORMING THE WORK. 7. PRESSURE RELIEF VALVES ARE IN THE FLOOR OF THE CLARIFIER. PRESSURE RELIEF VALVES ARE IN THE FLOOR OF THE CLARIFIER. 8. RELIEF VALVE SHALL NOT BE DAMAGED. RELIEF VALVE SHALL NOT BE DAMAGED. 9. NEW GROUT SHALL NOT COVER THE RELIEF VALVES. NEW GROUT SHALL NOT COVER THE RELIEF VALVES. 10. CONTRACTOR TO PROVIDE DEWATERING AS NECESSARY TO KEEP WATER OUT OF THE CONTRACTOR TO PROVIDE DEWATERING AS NECESSARY TO KEEP WATER OUT OF THE CLARIFIER DURING THE WORK AND SHALL OBTAIN AND PAY FOR ALL PERMITS NECESSARY FOR DEWATERING. 11. CONTRACTOR SHALL TAKE A MINIMUM OF 8 SETS OF MEASUREMENTS AROUND THE CONTRACTOR SHALL TAKE A MINIMUM OF 8 SETS OF MEASUREMENTS AROUND THE CLARIFIER THAT INCLUDES BUT IS NOT LIMITED TO: SLOPE, BASE PLATE ELEVATION, ELEVATION MIDWAY UP THE SLOPE, ELEVATION AT THE TOP OF THE RELIEF VALVES AND THE LAUNDERER SUPPORTS. 12. SUBMIT GROUT REMOVAL PLAN OUTLINING METHOD OF REMOVAL, HOW DEPTH OF REMOVAL SUBMIT GROUT REMOVAL PLAN OUTLINING METHOD OF REMOVAL, HOW DEPTH OF REMOVAL WILL BE MONITORED. 13. COORDINATE PAINT COLOR WITH OWNER. COORDINATE PAINT COLOR WITH OWNER.
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EXISTING MOTOR CONTROL CENTER MCC3
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EXISTING PANEL RP3
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RAKE BLADE SUPPORT
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DIMENSION VARIES: 9" AT TANK WALL, 27" AT MECH. CENTER
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RAKE ARM CHORD
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ADJUSTABLE 20 GA 304 SS SQUEEGEES
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RAKE BLADE 0.25" STEEL PLATE
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1 1/2" CLEAR
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TOP OF GROUT
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N.T.S.
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M-2
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5
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CLARIFIER PLAN AND SECTION
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NO.
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OF
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DRAWING
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SHEET
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SCALE
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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MWRF FINAL CLARIFIER IMPROVEMENTS
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
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301-609-7400
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PROJECT NO.-UN XXX
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MWRF FINAL CLARIFIER IMPROVEMENTS 100%%% SUBMITTAL
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DRIVE CONTROL W/ LOAD INDICATOR
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RAKE ARM WITH SPIRAL RAKE BLADE W/ ADJUSTABLE SQUEEGEES (TYP)
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WALKWAY (3'-0" WIDE) WITH 1 1/4" ALUMINUM I BAR GRATING
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28-0" INSIDE DIA. FEEDWELL
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NOM. 8'-0" SQUARE DRIVE PLATFORM
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FEEDWELL SUPPORTS (TYP)
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4' SCUM BOX AND SUPPORTS
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SKIMMER BLADE ASSEMBLY (TYP BOTH ARMS)
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C40 DRIVE UNIT, CHAIN DRIVE W/ GUARD
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INFLUENT COLUMN
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FEEDWELL
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3' WIDE WALKWAY TRUSS MEMBERS SERVE AS HANDRAIL AND TOE PLATE
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10' DIA ENERGY DISSIPATING INLET W/ 8 SCOOPS & PORTS (TYP)
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SKIMMER SUPPORT (TYP)
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CAGE - 4'-0" SQ.
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1
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12
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110'-0" INSIDE TANK DIAMETER
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SWD 12'-8" +/-
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FEED WELL SUPPORTS (TYP)
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SKIMMER BLADE (TYP)
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4' SCUM BOX
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SCUM BOX SUPPORTS (TYP)
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SCALE: NOT TO SCALE
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FINAL CLARIFIER PLAN
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M-2
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1
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SCALE: NOT TO SCALE
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FINAL CLARIFIER SECTION
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M-2
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A
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A
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M-2
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EXISTING CONCRETE WALL
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SCUM BAFFLE, RADIUS 45'-9 3/4"
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WEIR
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SCUM BAFFLE
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TOP OF V-NOTCH WEIR EL. 15.91
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LAUNDER WALL
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ADJUSTABLE BAFFLE SUPPORT
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1/2" SS WEIR AND BAFFLE EXPANSION ANCHORS (TYP.)
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BOTTOM OF V-NOTCH EL. 15.81
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SCALE: NONE
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FRP WEIR AND BAFFLE SECTION
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FINAL CLARIFIER
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M-2
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B
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M-2
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B
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XXXXXX
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XXXXXX
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FEEDWELL BAFFLES (TYP)
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RAKE ARM W/ SPIRAL RAKE BLADES W/ ADJUSTABLE SQUEEGEES (TYP)
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EX. INFLUENT PIPE
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CONCRETE OVERFLOW LAUNDER
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SKIMMING DEVICE
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PLATFORM HANDRAIL AND PLATFORM
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WATER LEVEL (W.L. REFERENCE)
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EX CONCRETE STRUCTURE
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SKIMMING DEVICE
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CONCRETE OVERFLOW LAUNDER
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V-NOTCH WEIR
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BAFFLE
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GROUT - MIN 2"
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28'-0" INSIDE DIA. FEEDWELL
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SUPPORT BRACE (TYP)
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FLUSH VALVE
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6" GLASS LINED DIP SCUM PIPE, CUSTOM FABRICATED, ORIENTATE TO SUIT EXISTING CONNECTION, MINIMUM SLOPE 0.25" PER FOOT TOWARD SCUM PIT. CONNECT TO EXISTING SCUM PIPE
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EX. SCUM PIPE, COORDINATE LOCATION
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CONCRETE OVERFLOW LAUNDER
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CONCRETE OVERFLOW LAUNDER
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DIRECTION OF ROTATION
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3'-01" SQUARE RAKE ARM
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SKIMMING DEVICE
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SKIMMING DEVICE
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RAKE BLADE W/ ADJUSTABLE SQUEEGEES (TYP)
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RAKE ARM
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EX. PLATFORM AND STAIRS NOT SHOWN (TYP)
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ELEV. 17.41
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ELEV. 3.24
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ELEV. 13.27
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WEIR DESIGN & FLOW RATE WEIR LENGTH....................................333 FT TOTAL NUMBER OF V NOTCHES.......444 AVERAGE FLOW 20 MGD W.L. EL 16.05 PEAK FLOW 30 MGD W.L. EL 15.86
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EL 3.41
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20 MGD EL. 16.05
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TOP OF CHAMFERED LAUNDER WALL EL. 15.58
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GENERAL NOTES:
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1.SEE GENERAL NOTES ON M-1.SEE GENERAL NOTES ON M-1.
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COLUMN ANCHORS W/ LEVELING NUTS (TYP)
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SKIMMER BLADE SUPPORT (TYP)
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SCALE: NONE
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RAKE BLADE DETAIL
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FINAL CLARIFIER
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M-2
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C
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3 POLE - 30 AMP NEMA 4X STAINLESS STEEL NON-FUSED DISCONNECT SWITCH MOUNT TO HANDRAIL
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A
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DRIVE MOTOR
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GFI
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EXISTING CONDUIT AND WIRE BETWEEN PULLBOX AND EXISTING PANEL RP3 FOR FINAL CLARIFIER LIGHTS AND RECEPTACLES TO REMAIN
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WEATHERPROOF GROUND FAULT INTERRUPTER TYPE RECEPTACLE (TYPICAL OF 2)
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EXISTING CONDUIT AND WIRE BETWEEN PULLBOX AND EXISTING MCC 3 FINAL CLARIFIER DRIVE MOTOR STARTER TO REMAIN
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EX
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EX
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WP
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AS NOTED
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E-1
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CLARIFIER PLAN AND DETAILS
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NO.
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OF
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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MWRF FINAL CLARIFIER IMPROVEMENTS
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
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301-609-7400
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PROJECT NO.-UN XXX
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MWRF FINAL CLARIFIER IMPROVEMENTS 100%%% SUBMITTAL
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SCALE: 3/16"=1'-0"
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FINAL CLARIFIER PLAN
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E-1
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1
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28792
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06-10-2019
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SCALE: NOT TO SCALE
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MOUNTING TO HANDRAIL DETAIL
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BACKPLATE FOR EQUIPMENT
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B
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STAINLESS STEEL CHANNEL: NOTE 3
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STAINLESS STEEL NUT, LOCKWASHER AND BOLT ASSEMBLY FOR PLATE ATTACHMENT TO CHANNEL (TYPICAL)
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1/8" THICK STAINLESS STEEL PLATE FOR EQUIPMENT MOUNTING: LENGTH AND WIDTH TO SUIT EQUIPMENT INSTALLED
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HANDRAIL
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NOTE 2
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NOTE 2
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NOTE 1
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STAINLESS STEEL BACKPLATE
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NOTES:
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12 GAUGE, HALF SLOT STAINLESS STEEL CHANNEL 1-5/8" x 1-5/8"
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FRONT ELEVATION
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SIDE ELEVATION
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ALL NUTS, BOLTS WASHERS, ETC USED IN ASSEMBLY AND EQUIPMENT MOUNTING TO BE STAINLESS STEEL. SECURE CHANNEL TO HANDRAIL USING 12 GAUGE STAINLESS STEEL PIPE STRAPS, SIZE TO SUIT HANDRAIL. LENGTH OF CHANNEL TO SUIT HANDRAIL SPACING.
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1.
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2.
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3.
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SCALE: NOT TO SCALE
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CLARIFIER BRIDGE DETAIL
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FIXTURE MOUNTING ON
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E-1
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A
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CROUSE-HINDS UNIVERSAL RAIL MOUNT BRACKET CATALOG NUMBER MHK-XX. TYPE AND MATERIAL OF BRACKET SHALL MATCH HANDRAIL-TYPICAL OF TWO BRACKETS PER POLE (TABULAR RAIL BRACKET SHOWN)
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CONDUIT
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CONDUIT BODY
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FINAL CLARIFIER WALKWAY
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TYPE 'A' FIXTURE SHOWN IN THE LOWERED POSITION (5'-3" MINIMUM HEIGHT IN LOWERED POSITION)
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CROUSE-HINDS V-SPRING TELESCOPING LIGHT POLE. CATALOG NUMBER V65-H-X-C. POLE MATERIAL SHALL MATCH THE HANDRAIL MATERIAL
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TYPE 'A' FIXTURE SHOWN IN THE RAISED POSITION (8'-6" MAXIMUM HEIGHT IN RAISED POSITION)
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FINAL CLARIFIER HANDRAIL
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DRAWING NOTES
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MOUNT SWITCH TO VERTICAL HANDRAIL MEMBER. ONLY WALKWAY LIGHTS TO BE CONTROLLED BY SWITCH. RECEPTACLES TO BE ENERGIZED AT ALL TIMES. 4#10 & 1#10 GRD IN 3/4"C. FOR FINAL CLARIFIERS NO. 1, 2, 3 AND 4 LIGHT AND RECEPTACLE CIRCUITS. CONNECT TO TERMINAL STRIPS IN PULLBOX. 8#6 & 1#6 GRD IN 1 1/4"C. FOR FINAL CLARIFIERS NO. 1 AND 2 DRIVES AND CONTROLS. CONNECT TO TERMINAL STRIPS IN PULLBOX. 8#8 & 1#8 GRD IN 1"C. FOR FINAL CLARIFIERS NO. 3 AND 4 DRIVES AND CONTROLS. CONNECT TO TERMINAL STRIPS IN PULLBOX. TYPE "A" FIXTURE - 25 DEGREE ANGLED STANTION MOUNTED, 41 WATT, 3515 LUMEN, WET LOCATION LED FIXTURE WITH TYPE 1 OPTICAL DISTRIBUTION PATTERN, TEFLON COATED LENS, EPOXY POWDER COATED DIE CAST ALUMINUM HOUSING, STAINLESS STEEL HARDWARE AND WIRE GUARD. FIXTURE SHALL BE CROUSE-HINDS LIGHTING CATALOG NUMBER: PVM-3L-J-RI-G-UNVI-S896. TYPICAL FOR FINAL CLARIFIERS NO. 1, 2, 3 AND 4. SEE SITE PLAN ON SHEET M-1. REPLACE EXISTING PULLBOX AND TERMINAL STRIPS WITH A NEW NEMA 4X STAINLESS STEEL PULLBOX AND NEW 600 VOLT TERMINAL STRIPS. CONNECT EXISTING CONDUITS TO NEW PULLBOX AND EXISTING WIRES TO TERMINAL STRIPS.
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SCALE:
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3/16" = 1'-0"
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10'
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6'
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2'
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4'
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6
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BAKER
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FORD
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DRIVE
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GREENWAY
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DRIVE
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224
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U.S.
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225
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MASON
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SPRINGS
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MATTAWOMAN NATURAL
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ENVIRONMENT
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AREA
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GOVERNMENT
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RAILROAD
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CREEK
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MATTAWOMAN
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NATURAL ENVIRONMENT
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AREA
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SMITH
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LACKEY
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HIGH SCHOOL
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224
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425
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SEWAGE
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DISPOSAL
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PLANT
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C r e e k
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RAILROAD
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MILLER HILL RD
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ENVIRONMENT
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DISPOSAL
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HAWTHORNE
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%%UVICINITY MAP
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SCALE: 1" = 2000'
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SCALE: 1" = 400'
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LOCATION PLAN
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%%UGENERAL NOTES
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DATE
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DENNIS J. HASSON, PE NO. 24478
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%%UOWNER'S/DEVELOPER'S CERTIFICATION
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DATE
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WILLIAM A. SHREVE
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DIRECTOR OF PUBLIC WORKS
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CHARLES COUNTY GOVERNMENT, DPW
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%%UENGINEER'S CERTIFICATION STATEMENT
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A. GENERAL 1. ALL WORK SHALL BE IN ACCORDANCE WITH THE LATEST CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH ALL WORK SHALL BE IN ACCORDANCE WITH THE LATEST CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH MANAGEMENT SPECIFICATIONS MANUAL, THE LATEST CHARLES COUNTY DETAIL MANUAL AND IN ACCORDANCE WITH CURRENT COUNTY ORDINANCES. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO OBTAIN COPIES OF ALL PERTINENT COUNTY PUBLICATIONS FROM PLANNING AND GROWTH MANAGEMENT. 2. THE LOCATION OF EXISTING UTILITIES HAS BEEN OBTAINED FROM THE BEST AVAILABLE SOURCES. IT SHALL BE THE THE LOCATION OF EXISTING UTILITIES HAS BEEN OBTAINED FROM THE BEST AVAILABLE SOURCES. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO VERIFY BOTH THE HORIZONTAL AND VERTICAL LOCATION BEFORE BEGINNING CONSTRUCTION. 3. CONTRACTOR IS RESPONSIBLE FOR CONTACTING "MISS UTILITY" AT 1-800-257-7777, 48 HOURS PRIOR TO ANY EXCAVATION CONTRACTOR IS RESPONSIBLE FOR CONTACTING "MISS UTILITY" AT 1-800-257-7777, 48 HOURS PRIOR TO ANY EXCAVATION WORK. 4. CONTRACTOR IS RESPONSIBLE FOR CONTACTING THE CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH CONTRACTOR IS RESPONSIBLE FOR CONTACTING THE CHARLES COUNTY DEPARTMENT OF PLANNING AND GROWTH MANAGEMENT/DEVELOPMENT SERVICES DIVISION 48 HOURS PRIOR TO THE START OF ALL CONSTRUCTION IN ACCORDANCE TO ALL PERMITS ISSUED @ 301-645-0700.
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CHARLES COUNTY GOVERNMENT
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MWRF SECONDARY CLARIFIER IMPROVEMENTS
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PROJECT NO.-UN XXX
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NAD 83/(NSRS 2007)
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COORDINATE SYSTEM
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MARYLAND STATE PLANE
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N
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GRAPHIC SCALE
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TITLE SHEET
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1
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0
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400'
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800'
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I/WE HEREBY CERTIFY THAT ALL CONSTRUCTION INCLUDING AND NOT LIMITED TO DRAINAGE, GRADING, STORMWATER MANAGEMENT, ROADS AND WATER & SEWER WILL BE DONE PURSUANT TO THIS PLAN, ALL LOCAL, STATE AND FEDERAL CODES AND REQUIREMENTS, CHARLES COUNTY STANDARDS AND SPECIFICATIONS FOR CONSTRUCTION MANUAL, CHARLES COUNTY DETAILS, APPROVED SITE AND/OR PRELIMINARY PLANS, OTHER PGM ORDINANCES & REGULATIONS AND ANY OTHER REQUIREMENTS IMPOSED BY CHARLES COUNTY. I/WE HEREBY AUTHORIZE A RIGHT OF ENTRY TO ANY CHARLES COUNTY, LOCAL, STATE OR FEDERAL PERSONNEL FOR THE PURPOSE OF INSPECTION EVALUATION, OR OBSERVATION OF ANY CONSTRUCTION ACTIVITY RELATED TO THE PROJECT.
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I HEREBY CERTIFY THAT THIS PLAN MEETS OR EXCEEDS THE REQUIREMENTS OF STORMWATER MANAGEMENT AND STORM DRAIN ORDINANCE, FLOODPLAIN MANAGEMENT ORDINANCE, GRADING ORDINANCE, ROAD ORDINANCE, WATER & SEWER ORDINANCE, THE 2000 MARYLAND STORMWATER DESIGN MANUAL, VOLUMES I & II, ALL STATE AND FEDERAL CODES, THE CHARLES COUNTY STANDARDS AND SPECIFICATIONS FOR CONSTRUCTION MANUAL, THE CHARLES COUNTY DETAILS MANUAL, THE APPROVED SITE PLAN OR PRELIMINARY PLAN, OTHER PGM ORDINANCES AND REGULATIONS AND ANY CONDITIONS IMPOSED BY CHARLES COUNTY.
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MATTAWOMAN WATER RECLAMATION FACILITY (MWRF)
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MATTAWOMAN WATER RECLAMATION FACILITY (MWRF)
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0
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2000'
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4000'
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HAWTHORNE RD
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%%USHEET INDEX
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SHEET DRAWING DRAWING NAME NO. TITLE NO. TITLE TITLE T-1 1 TITLE SHEET 1 TITLE SHEET TITLE SHEET S-1 2 GENERAL STRUCTURAL NOTES, CODES, LOADS AND ABBREVIATIONS 2 GENERAL STRUCTURAL NOTES, CODES, LOADS AND ABBREVIATIONS GENERAL STRUCTURAL NOTES, CODES, LOADS AND ABBREVIATIONS S-2 3 SECONDARY CLARIFIER PLAN AND SECTIONS 3 SECONDARY CLARIFIER PLAN AND SECTIONS SECONDARY CLARIFIER PLAN AND SECTIONS M-1 4 SITE PLAN 4 SITE PLAN SITE PLAN M-2 5 SECONDARY CLARIFIER PLAN AND SECTION 5 SECONDARY CLARIFIER PLAN AND SECTION SECONDARY CLARIFIER PLAN AND SECTION E-1 6 CLARIFIER PLAN AND DETAILS6 CLARIFIER PLAN AND DETAILSCLARIFIER PLAN AND DETAILS
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T-1
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XXXXXX
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XXXXXX
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NO.
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
NEW EFFLUENT CHANNEL BOTTOM SLAB (SEE SECTIONS FOR REINFORCEMENT)
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NOTES: 1. PROVIDE DETAIL AT EXISTING EFFLUENT BOX OPENING PROVIDE DETAIL AT EXISTING EFFLUENT BOX OPENING IN CLARIFIER WALL. 2. ALL SCREEN MATERIAL AND ANCHORS MUST BE TYPE ALL SCREEN MATERIAL AND ANCHORS MUST BE TYPE 316 STAINLESS STEEL.
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NEW EFFLUENT SAFETY SCREEN IN EXISTING WALL OPENING
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EXISTING CLARIFIER WALL
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#5@12 MEASURED ALONG OUTER WALL IN PLACE OF NORMAL RADIAL TOP BAR
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#5 EPOXY ADHESIVE DOWEL SPACED AT 6" ON CENTER, IN PLACE OF NORMAL RADIAL DOWEL
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1/2" STAINLESS STEEL EXPANSION BOLT WITH 3 1/4" MINIMUM EMBEDMENT (TYP) (HILTI KWIK BOLT TZ OR EQUAL)
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STANDARD HOOK (TYP)
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SWELLABLE TYPE WATERSTOP (TYP)
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(2)-L5x5x3/8 WITH VERTICAL SHORT SLOTTED HOLES FOR 3/4" BOLTSAND (2) 11/16" HOLESIN OUTSTANDING LEGS FOR 1/2" EXPANSION BOLTS
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PL1/2"x8"x2'-4" WITH VERTICAL STANDARD SHORT SLOTTED HOLES FOR 3/4" BOLTSTO MATCH ANGLES
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PL3/8"x3"x0'-9 1/2" CENTERED ON VERTICAL PLATE WITH (2)-11/16" HOLES @ 6 1/2" O.C.
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3/16
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3/16
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NO SCALE
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S-1
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2
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AND ABBREVIATIONS
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GENERAL STRUCTURAL NOTES, CODES, LOADS,
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NO.
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OF
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
GENERAL 1. FIELD VERIFY ALL DIMENSIONS, LOCATIONS, AND ELEVATIONS SHOWN ON THE FIELD VERIFY ALL DIMENSIONS, LOCATIONS, AND ELEVATIONS SHOWN ON THE CONTRACT DRAWINGS FOR EXISTING STRUCTURES. NOTIFY THE ENGINEER OF ALL DISCREPANCIES BEFORE PROCEEDING WITH THE WORK. 2. NOT ALL OPENINGS IN THE STRUCTURAL WORK ARE SHOWN. REVIEW ALL NOT ALL OPENINGS IN THE STRUCTURAL WORK ARE SHOWN. REVIEW ALL DRAWINGS FROM OTHER DISCIPLINES AND COORDINATE ALL OPENINGS AND EMBEDDED ITEMS SUCH AS SLEEVES, ANCHORS, CONDUITS, ETC. THAT WILL BE INCORPORATED INTO THE STRUCTURAL WORK. 3. COORDINATE ALL ACTIVITIES, INCLUDING THOSE OF SUBCONTRACTORS, WITH COORDINATE ALL ACTIVITIES, INCLUDING THOSE OF SUBCONTRACTORS, WITH THE COUNTY'S ACTIVITIES. 4. THE DRAWINGS SHOW THE FINAL CONDITION OF THE STRUCTURES. STABILIZE THE DRAWINGS SHOW THE FINAL CONDITION OF THE STRUCTURES. STABILIZE THE STRUCTURES DURING TEMPORARY CONDITIONS. CONCRETE 1. PROVIDE MIX #6 CONCRETE AS DEFINED IN THE CHARLES COUNTY STANDARD PROVIDE MIX #6 CONCRETE AS DEFINED IN THE CHARLES COUNTY STANDARD SPECIFICATIONS SECTION 03310 “PORTLAND CEMENT CONCRETE” WITH A PORTLAND CEMENT CONCRETE” WITH A WITH A MINIMUM COMPRESSIVE STRENGTH OF 4500 PSI AT 28 DAYS, EXCEPT PSI AT 28 DAYS, EXCEPT PSI AT 28 DAYS, EXCEPT PROVIDE MAXIMUM WATER-CEMENTITIOUS RATIO OF 0.42. 2. PROVIDE CRYSTALLINE WATERPROOFING ADMIXTURE IN ALL CONCRETE, PROVIDE CRYSTALLINE WATERPROOFING ADMIXTURE IN ALL CONCRETE, EXCEPT THAT INDICATED AS FILL. 3. DETAIL AND CONSTRUCT REINFORCED CONCRETE IN ACCORDANCE WITH DETAIL AND CONSTRUCT REINFORCED CONCRETE IN ACCORDANCE WITH AMERICAN CONCRETE INSTITUTE ACI 301, “SPECIFICATION FOR STRUCTURAL SPECIFICATION FOR STRUCTURAL CONCRETE.” 4. DETAIL REINFORCING STEEL IN ACCORDANCE WITH AMERICAN CONCRETE DETAIL REINFORCING STEEL IN ACCORDANCE WITH AMERICAN CONCRETE INSTITUTE SP-66, "ACI DETAILING MANUAL," WHICH INCLUDES ACI 315, "DETAILS AND DETAILING OF CONCRETE REINFORCEMENT". 5. PROVIDE REINFORCEMENT CONFORMING TO ASTM A615, GRADE 60, PROVIDE REINFORCEMENT CONFORMING TO ASTM A615, GRADE 60, DEFORMED BARS. 6. PROVIDE NORMAL WEIGHT AGGREGATES CONFORMING TO ASTM C33, CLASS PROVIDE NORMAL WEIGHT AGGREGATES CONFORMING TO ASTM C33, CLASS 4S. 7. UNLESS NOTED OTHERWISE ON THE DRAWINGS, THE CONCRETE COVER FOR UNLESS NOTED OTHERWISE ON THE DRAWINGS, THE CONCRETE COVER FOR REINFORCEMENT MUST BE 2". 8. SUBMIT REINFORCING STEEL DETAILS (SHOP DRAWINGS) AND RECEIVE SUBMIT REINFORCING STEEL DETAILS (SHOP DRAWINGS) AND RECEIVE APPROVAL BEFORE PROCEEDING WITH FABRICATION. 9. CHAMFER ALL EXPOSED CONCRETE EDGES 3/4" UNLESS OTHERWISE NOTED CHAMFER ALL EXPOSED CONCRETE EDGES 3/4" UNLESS OTHERWISE NOTED 10. DETAIL ALL SPLICES AND STANDARD HOOKS FOR REINFORCING STEEL NOT DETAIL ALL SPLICES AND STANDARD HOOKS FOR REINFORCING STEEL NOT DIMENSIONED ON THE DRAWINGS AS TABULATED ON SHEET S-1. 11. PLACE CONCRETE BETWEEN INDICATED AND APPROVED JOINTS, ALLOWING A PLACE CONCRETE BETWEEN INDICATED AND APPROVED JOINTS, ALLOWING A MINIMUM ELAPSED PERIOD OF 48 HOURS BETWEEN ADJACENT PLACEMENTS. 12. PROVIDE JOINTS AS DETAILED ON THE DRAWINGS, AND ON APPROVED SHOP PROVIDE JOINTS AS DETAILED ON THE DRAWINGS, AND ON APPROVED SHOP DRAWINGS. NO ADDITIONAL JOINTS SHALL BE USED NOR ANY OMITTED EXCEPT BY WRITTEN AUTHORIZATION FROM THE ENGINEER. APPROVED ADDITIONAL JOINTS MUST NOT RESULT IN ADDITIONAL EXPENSE TO THE COUNTY. 13. PROVIDE CONSTRUCTION JOINT INTERFACE CLEAN AND FREE OF LAITANCE. PROVIDE CONSTRUCTION JOINT INTERFACE CLEAN AND FREE OF LAITANCE. WHERE INDICATED ON THE DRAWINGS, INTENTIONALLY ROUGHEN CONSTRUCTION JOINTS TO A FULL AMPLITUDE OF 1/4 INCH. IMMEDIATELY BEFORE NEW CONCRETE IS PLACED, CONSTRUCTION JOINTS MUST BE PRE-WETTED AND STANDING WATER REMOVED. 14. WHERE A SLAB IS SLOPED (TOP AND/OR BOTTOM), PROVIDE SLOPED WHERE A SLAB IS SLOPED (TOP AND/OR BOTTOM), PROVIDE SLOPED REINFORCING STEEL PARALLEL TO THE CONCRETE SURFACE. 15. SIZE AND LOCATE ANCHOR BOLTS AND OTHER EMBEDDED ITEMS AS SIZE AND LOCATE ANCHOR BOLTS AND OTHER EMBEDDED ITEMS AS INDICATED AND TO SUIT EQUIPMENT FURNISHED. 16. REVIEW ALL DRAWINGS FROM OTHER DISCIPLINES AND COORDINATE ALL REVIEW ALL DRAWINGS FROM OTHER DISCIPLINES AND COORDINATE ALL OPENINGS AND EMBEDDED ITEMS SUCH AS SLEEVES, ANCHORS, CONDUIT, ETC. THAT WILL BE INCORPORATED INTO CONCRETE WORK. 17. PROVIDE SWELLABLE TYPE WATERSTOPS AS SHOWN ON THE DRAWINGS. PROVIDE SWELLABLE TYPE WATERSTOPS AS SHOWN ON THE DRAWINGS. 18. COLD WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH COLD WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH ACI 306R, ACI 306.1, AND THE SPECIFICATIONS. 19. HOT WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH ACI HOT WEATHER PLACEMENT OF CONCRETE MUST BE IN ACCORDANCE WITH ACI 305R, ACI 305.1, AND THE SPECIFICATIONS. ADHESIVE FOR REBAR DOWELS 1. THE ADHESIVE ANCHOR SYSTEM USED FOR POST INSTALLED ANCHORAGE TO THE ADHESIVE ANCHOR SYSTEM USED FOR POST INSTALLED ANCHORAGE TO CONCRETE MUST CONFORM TO THE REQUIREMENTS OF THE MOST RECENTLY PUBLISHED ACI 355.4, "ACCEPTANCE CRITERIA FOR QUALIFICATION OF POST-INSTALLED ADHESIVE ANCHORS IN CONCRETE AND COMMENTARY." EACH ADHESIVE ANCHOR SYSTEM MUST SATISFY THE STRENGTH REQUIREMENTS FOR ITS USE. BULK-MIXED ADHESIVES ARE NOT PERMITTED. ADHESIVE ANCHORAGE DESIGN IS IN ACCORDANCE WITH CHAPTER 17 OF ACI 318-14, FOR ALL OTHER INFORMATION SEE SPECIFICATION SECTION 05510. ADHESIVE ANCHORS IN CONCRETE MUST BE QUALIFIED FOR USE IN CRACKED CONCRETE IN ACCORDANCE WITH ACI 355.4. THE FOLLOWING ANCHOR SYSTEMS, OR APPROVED EQUALS, MUST BE USED: A. ANCHORAGE TO CONCRETE ANCHORAGE TO CONCRETE i. HILTI HIT-HY 200 ADHESIVE HILTI HIT-HY 200 ADHESIVE 2. CONCRETE AT THE TIME OF ADHESIVE ANCHOR INSTALLATION MUST HAVE A CONCRETE AT THE TIME OF ADHESIVE ANCHOR INSTALLATION MUST HAVE A MINIMUM AGE OF 21 DAYS. 3. INSTALL ADHESIVE ANCHORS WITH A MINIMUM EDGE DISTANCE OF 10 INCHES INSTALL ADHESIVE ANCHORS WITH A MINIMUM EDGE DISTANCE OF 10 INCHES TO ANY FREE EDGE OF CONCRETE. 4. INSTALL ADHESIVE ANCHORS WITH TRAINED QUALIFIED PERSONNEL. INSTALL INSTALL ADHESIVE ANCHORS WITH TRAINED QUALIFIED PERSONNEL. INSTALL ADHESIVE ANCHORS IN ACCORDANCE WITH THE MANUFACTURER'S PRINTED INSTALLATION INSTRUCTIONS. 5. PROVIDE THOROUGHLY CLEANED ANCHOR HOLES PRIOR TO ADHESIVE PROVIDE THOROUGHLY CLEANED ANCHOR HOLES PRIOR TO ADHESIVE INJECTION, AS REQUIRED BY THE MANUFACTURER'S PRINTED INSTALLATION INSTRUCTIONS. PROTECT DRILLED AND CLEANED ANCHOR HOLES FROM CONTAMINATION UNTIL THE ADHESIVE IS INSTALLED. 6. PROVIDE ANCHORS CLEAN, OIL-FREE, AND FREE OF LOOSE RUST, PAINT, OR PROVIDE ANCHORS CLEAN, OIL-FREE, AND FREE OF LOOSE RUST, PAINT, OR OTHER COATINGS. 7. PROVIDE INSTALLED ADHESIVE ANCHORS SECURELY FIXED IN-PLACE TO PROVIDE INSTALLED ADHESIVE ANCHORS SECURELY FIXED IN-PLACE TO PREVENT DISPLACEMENT WHILE THE ADHESIVE CURES. 8. ARRANGE FOR AN ANCHOR MANUFACTURER'S REPRESENTATIVE TO PROVIDE ARRANGE FOR AN ANCHOR MANUFACTURER'S REPRESENTATIVE TO PROVIDE ONSITE INSTALLATION TRAINING FOR ALL OF THEIR ANCHORING PRODUCTS SPECIFIED. THE ENGINEER MUST RECEIVE DOCUMENTED CONFIRMATION THAT ALL OF THE CONTRACTOR'S PERSONNEL WHO INSTALL ANCHORS ARE TRAINED PRIOR TO THE COMMENCEMENT OF INSTALLING ANCHORS. 9. PERSONNEL INSTALLING HORIZONTAL OR OVERHEAD ADHESIVE DOWELS MUST PERSONNEL INSTALLING HORIZONTAL OR OVERHEAD ADHESIVE DOWELS MUST BE CERTIFIED BY AN APPLICABLE CERTIFICATION PROGRAM. CERTIFICATION MUST INCLUDE WRITTEN AND PERFORMANCE TESTS IN ACCORDANCE WITH THE ACI/CRSI ADHESIVE ANCHOR INSTALLER CERTIFICATION PROGRAM, OR EQUIVALENT. DESIGN LOADS 1. BUILDING RISK CATEGORY: III BUILDING RISK CATEGORY: III 2. DEAD LOADS: DEAD LOADS: A. STRUCTURES - ACTUAL WEIGHT. STRUCTURES - ACTUAL WEIGHT. 3. FLUID LOADS: FLUID LOADS: A. PROCESS LIQUID - 62.4 PCF PROCESS LIQUID - 62.4 PCF CODES AND STANDARDS 4. INTERNATIONAL BUILDING CODE IBC 2015 INCLUDING THE MODIFICATIONS INTERNATIONAL BUILDING CODE IBC 2015 INCLUDING THE MODIFICATIONS MADE BY CHARLES COUNTY. 5. AMERICAN CONCRETE INSTITUTE ACI-318 (2014), “BUILDING CODE AMERICAN CONCRETE INSTITUTE ACI-318 (2014), “BUILDING CODE BUILDING CODE REQUIREMENTS FOR REINFORCED CONCRETE. 6. AMERICAN CONCRETE INSTITUTE ACI-350 (2006), “ENVIRONMENTAL AMERICAN CONCRETE INSTITUTE ACI-350 (2006), “ENVIRONMENTAL ENVIRONMENTAL ENGINEERING CONCRETE STRUCTURES”. . 7. AMERICAN SOCIETY OF CIVIL ENGINEERS ASCE 7 (2010), “MINIMUM DESIGN AMERICAN SOCIETY OF CIVIL ENGINEERS ASCE 7 (2010), “MINIMUM DESIGN MINIMUM DESIGN LOADS FOR BUILDING AND OTHER STRUCTURES.” ABBREVIATIONS ALUM ALUMINUM ALUMINUM ARCH ARCHITECTURAL ARCHITECTURAL CLR CLEAR CLEAR CMU CONCRETE MASONRY UNIT CONCRETE MASONRY UNIT COL COLUMN COLUMN CONC CONCRETE CONCRETE DWG DRAWING DRAWING DIA DIAMETER DIAMETER EL ELEVATION ELEVATION E.F EACH FACE EACH FACE E.W EACH WAY EACH WAY EX EXISTING EXISTING EXP EXPANSION EXPANSION GA GAUGE GAUGE GALV GALVANIZED GALVANIZED HP HIGH POINT HIGH POINT JT JOINT JOINT LB POUND POUND LG LONG LONG LP LOW POINT LOW POINT MAX MAXIMUM MAXIMUM MECH MECHANICAL MECHANICAL MIN MINIMUM MINIMUM PCF POUNDS PER CUBIC FOOT POUNDS PER CUBIC FOOT PL PLATE PLATE PSF POUND PER SQUARE FOOT POUND PER SQUARE FOOT PSI POUND PER SQUARE INCH POUND PER SQUARE INCH OC ON CENTER ON CENTER OPP OPPOSITE OPPOSITE SCH SCHEDULE SCHEDULE SHT SHEET SHEET SQ SQUARE SQUARE SS STAINLESS STEEL STAINLESS STEEL TOS TOP OF STEEL TOP OF STEEL TOW TOP OF WALL TOP OF WALL T&B TOP AND BOTTOM TOP AND BOTTOM TYP TYPICAL TYPICAL T/ TOP OF TOP OF W/ WITHWITH
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(NON-EPOXY COATED)
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TENSION LAP SPLICE AND STANDARD HOOK LENGTH (ACI 318-14/ACI 350-06)
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STANDARD 180° AND 90° END HOOKS
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LAP SPLICE LENGTH
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MINIMUM TENSION EMBEDMENTS
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BAR SIZE
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SLAB AND WALL
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BEAM
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STD 90° HOOK
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STD 180° HOOK
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SOFT METRIC
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ENGLISH
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OTHER BARS
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TOP BARS
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OTHER BARS
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TOP BARS
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ldh
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12db
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ldh
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4db
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#13
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#16
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#19
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#22
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#25
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#29
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#32
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#36
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#11
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#10
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#9
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#8
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#7
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#6
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#5
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#4
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14"
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18"
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21"
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35"
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44"
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54"
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66"
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103"
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86"
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70"
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57"
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45"
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28"
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23"
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19"
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26"
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35"
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51"
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59"
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66"
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74"
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82"
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107"
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96"
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86"
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76"
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67"
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46"
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34"
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23"
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7"
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8"
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11"
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17"
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16"
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14"
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12"
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11"
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9"
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8"
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6"
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6"
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6"
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5"
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4"
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4"
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3"
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3"
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3"
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SLAB AND WALL:
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6" MINIMUM REBAR SPACING WITH CONCRETE COVER = 1.5" CLEAR
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BEAM:
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MINIMUM CLEAR SPACING BETWEEN BARS = 1.5 db (1.5" MIN). MINIMUM CONCRETE COVER = 1.5" CLEAR. MINIMUM STIRRUP #4@12" PROVIDED.
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TOP BAR:
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TOP BAR FOR SLAB AND BEAM SHALL BE DEFINED AS REINFORCEMENT SO PLACED THAT MORE THAN 12" OF CONCRETE IS CAST BELOW THE SPLICE.
SIDE COVER SHALL NOT BE LESS THAN 2.5" END COVER ON 90° HOOK SHALL NOT BE LESS THAN 2"
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4db (2 " MIN.)12" MIN.)
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CRITICAL SECTION
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CRITICAL SECTION
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NOT TO SCALE
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TYPICAL CONSTRUCTION JOINT
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S-1
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C
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B
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S-1
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A
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S-1
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ADDITIONAL REINFORCING AROUND OPENINGS
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1 - #6 X 4'-0" LONG, E.F. DIAG.
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ROUND, SQUARE OR RECTANGULAR OPENING
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SCALE: NONE
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NOTES:
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1. FOR OPENINGS LESS THAN 12" DIA., FOR OPENINGS LESS THAN 12" DIA., NO ADDITIONAL REINFORCING IS REQUIRED PROVIDED NO REINFORCING IS INTERRUPTED BY THE OPENING 2. PROVIDE ADDITIONAL REINFORCING, PROVIDE ADDITIONAL REINFORCING, (MINIMUM OF ONE-HALF THE NUMBER OF PRINCIPLE REINFORCING BARS INTERRUPTED BY THE OPENING) ON EACH SIDE AND EACH FACE OF THE OPENING.
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NOT TO SCALE
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TYPICAL EFFLUENT BOX OPENING SCREEN
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S-1
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D
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E
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S-1
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NOT TO SCALE
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SECTION
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S-1
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E
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NOT TO SCALE
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DETAIL
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S-1
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F
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S-1
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F
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NEW CONCRETE EFFLUENT TROUGH (ALONG FULL PERIMETER), SEE NOTE 5
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REMOVE EXISTING 2"± BOTTOMSLAB GROUT OVERLAY. PROVIDE NEW SWEPT-IN GROUT OVERLAY USING SCREEDS ATTACHED TO THE NEW SLUDGE-SWEEPING PORTION OF THE NEW CLARIFIER MECHANISM. AFTER CURING, APPLY CORROSION-RESISTANT EPOXY COATING. SEE SPECIFICATION SECTION 09960.
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C CLARIFIER
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L
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C CLARIFIER
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L
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EXISTING CANTILEVERED CONCRETE ARM (TYPICAL)
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CONSTRUCTION JOINT IN TROUGH SLAB AND WALL, LOCATE AT MIDSPAN BETWEEN EVERY OTHER BRACKET (TYPICAL)
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EXISTING EXPANSION JOINT IN SLAB AND GROUT, SEE NOTE 2
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#5@12 MEASURED ALONG OUTER WALL
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4-#4
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#4@6T&B
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#5 EPOXY ADHESIVE DOWEL SPACED AT 12" ON CENTER
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ROUGHEN SURFACE TO 1/4" AMPLITUDE
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SWELLABLE TYPE WATERSTOP (TYP)
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FOR WEIR AND BAFFLE DETAIL SEE MECHANICAL SHEETS
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EL 21.96'±
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EL 17.58'±
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STANDARD HOOK
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CONSTRUCTION JOINT
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EL 19.92'
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NON-SHRINK GROUT, ELEVATION VARIES
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ROUGHEN SURFACE TO 1/4" AMPLITUDE
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2-#4 EPOXY ADHESIVE DOWELS APPROXIMATELY CENTERED ON EXISTING CONCRETE BRACKET. LOCATE TO AVOID EXISTING REINFORCEMENT.
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NOTE: NORMAL TROUGH NORMAL TROUGH REINFORCEMENT NOT SHOWN
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EXISTING REMAINING CONCRETE BRACKET
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EXISTING CLARIFIER WALL
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EL 17.58'±
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FOR WEIR AND BAFFLE DETAIL SEE MECHANICAL SHEETS
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EL 21.96'±
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S-2
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1
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EXISTING CLARIFIER WALL
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(SEE NOTE)
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EXISTING #4@12 TIES
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EXISTING 3-#6
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(TYP)
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NOTE: LOCATE EXISTING #4 TIE USING NON-DESTRUCTIVE METHODS AND ADJUST THE LOCATION OF THE CUT TO PROVIDE 2" MINIMUM CLEARANCE.
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SAW-CUT OR WIRE-CUT
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12±
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1 1116±
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EXISTING 2-#5
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EXISTING 3-#5
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(MIN)
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EXISTING REBAR
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EXISTING #4 TIE
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CORE DRILL 1 1/2" MIN DIAMETER HOLE AROUND EXISTING REBAR, 2" MIN DEEP. REMOVE CONCRETE AND BAR INSIDE OF HOLE. FILL HOLE WITH NO METALLIC NON-SHRINK GROUT (TYPICAL 8 PLACES)
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S-2
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3
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SECONDARY CLARIFIER PLAN AND SECTIONS
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NO.
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OF
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DRAWING
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SHEET
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SCALE
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
1. SEE SHEET S-1 FOR STRUCTURAL GENERAL NOTES AND SEE SHEET S-1 FOR STRUCTURAL GENERAL NOTES AND TYPICAL DETAILS. 2. DO NOT DAMAGE EXISTING SLAB EXPANSION JOINT MATERIAL. DO NOT DAMAGE EXISTING SLAB EXPANSION JOINT MATERIAL. PROVIDE EXPANSION JOINT FILLER AND SEALANT IN GROUT OVERLAY, WITH SAME WIDTH AS SLAB EXPANSION JOINT, AT LOCATION OF EXISTING JOINT. FOR BIDDING PURPOSES, ASSUME 150 LF OF EXISTING SLAB EXPANSION JOINT MUST BE REPLACED. JOINT FILLER MATERIAL MUST COMPLY WITH ASTM D1752, TYPE III PREFORMED, AND FLEXIBLE JOINT SEALANT MUST BE SIKAFLEX 2C NS EZ MIX OR APPROVED EQUAL. 3. EXISTING SLAB CONTAINS RELIEF VALVES TO ALLOW INFLOW EXISTING SLAB CONTAINS RELIEF VALVES TO ALLOW INFLOW OF GROUNDWATER INTO CLARIFIER. DO NOT DAMAGE OR OTHERWISE CAUSE VALVES TO NOT FUNCTION PROPERLY. DE-WATERING MAY BE REQUIRED TO REMOVE EXISTING GROUT AND INSTALL NEW GROUT OVERLAY. 4. IF MORE THAN 2" OF EXISTING GROUT TO BE REMOVED IS IF MORE THAN 2" OF EXISTING GROUT TO BE REMOVED IS ENCOUNTERED, IMMEDIATELY BRING TO THE OWNER'S ATTENTION. 5. PROVIDE SLOPING NON-SHRINK GROUT IN TROUGH. PROVIDE PROVIDE SLOPING NON-SHRINK GROUT IN TROUGH. PROVIDE 8" THICK GROUT AT HIGH POINT, LOCATED 180 DEGREES FROM EXISTING EFFLUENT BOX. UNIFORMLY SLOPE FROM BOTH SIDES OF HIGH POINT TO LOW POINT AT EFFLUENT BOX. 6. KEEP DAILY RECORDS OF EXISTING GROUT THICKNESS AND KEEP DAILY RECORDS OF EXISTING GROUT THICKNESS AND VOLUME DEMOLISHED, AS WELL AS DAILY PHOTOGRAPHS OF GROUT DEMOLITION. SUBMIT DAILY RECORDS AND A DEMOLITION PLAN DRAWING DOCUMENTING EXISTING GROUT THICKNESS TO THE OWNER AND ENGINEER.
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GENERAL SHEET NOTES:
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0
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SCALE:
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4"
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8"
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3" = 1'-0"
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2"
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0
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SCALE:
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3/4" = 1'-0"
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1'
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3'
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2'
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REF: S-2
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SCALE: 3/4" = 1'-0"
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SECTION
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S-2
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A
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NEW WORK
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DEMOLITION
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REF: S-2
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SCALE: 3/4" = 1'-0"
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SECTION
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S-2
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B
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REF: S-2
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SCALE: 3/4" = 1'-0"
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SECTION
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S-2
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C
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REF: S-2
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SCALE: 3" = 1'-0"
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DETAIL
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S-2
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1
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NEW WORK
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LEGEND:
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EXISTING CONSTRUCTION TO BE REMOVED.
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J
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EX
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X
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EX
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EX
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EX
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EX
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EX
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EX
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EX
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xxx
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N.T.S.
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M-1
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4
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SITE PLAN
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1
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DEMOLITION NOTES:
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REMOVE ALL OF THE EXISTING CLARIFIER MECHANICAL AND ELECTRICAL COMPONENTS INCLUDING BUT NOT LIMITED TO CLARIFIER SLUDGE AND SCUM COLLECTION EQUIPMENT INCLUDING CENTER PIER, ACCESS BRIDGE, RAILINGS, SLUDGE SCRAPERS, TROUGH, TROUGH SUPPORTS (MODIFY), CONCRETE GROUT FROM THE CLARIFIER SLAB, SCUM BEACH, SCUM BEACH PIPING CONDUIT, WIRE, LIGHT FIXTURES, LIGHT SWITCH, RECEPTACLES, CONTROL STATIONS AND DISCONNECT SWITCH. DO NOT DAMAGE RELIEF VALVES. REMOVE PULLBOX, CLARIFIER DRIVE WIRES BACK TO MOTOR CONTROL CENTER MCC7 AND: CLARIFIER LIGHTING AND RECEPTACLE WIRES BACK TO PANEL RP7. CONDUITS BETWEEN PULLBOX TO MCC7 AND RP7 TO REMAIN.
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NO.
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
- REMOVE ITEMS IN THE SHADED AREA AND AS NOTED ABOVE
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2
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RAS #2 PUMP STATION
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PANEL RP7
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EXISTING MOTOR CONTROL CENTER MCC7
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E-1
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C
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DRAWING NOTES:
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EXISTING CONDUIT AND WIRE TO REMAIN. EXISTING PULLBOX TO REMAIN. NEW NEMA 4X STAINLESS STEEL PULLBOX. REMOVE EXISTING CONDUIT AND WIRE. CONNECT NEW CONDUIT TO EXISTING CONDUIT AT EXISTING CONDUIT COUPLING. 4#10 & 1#10 GRD IN 1"C. FOR CLARIFIER LIGHTS AND RECEPTACLES. 8#8 & 1#8 GRD IN 1"C. FOR CLARIFIER DRIVE MOTOR POWER AND CONTROLS. ALL NEW CONDUIT TO BE RIGID GALVANIZED STEEL WITH A BONDED ON PVC COATING.
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SCALE: NOT TO SCALE
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SECONDARY CLARIFIER WIRING SCHEMATIC
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M-1
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2
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FINISHED GRADE
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3
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2
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3
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1
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1
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1
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1
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5
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7
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6
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6
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7
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7
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6
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4
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3
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1
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2
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3
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4
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5
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6
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7
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8
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EXISTING SECONDARY CLARIFIER NO. 5
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EXISTING SECONDARY CLARIFIER NO. 6
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1
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GENERAL NOTES:
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1. DIMENSIONS AND ELEVATIONS OF EXISTING STRUCTURES PROVIDED AS REFERENCE ONLY, DIMENSIONS AND ELEVATIONS OF EXISTING STRUCTURES PROVIDED AS REFERENCE ONLY, 2. EXISTING DRAWINGS PROVIDED IN APPENDIX OF SPECIFICATION FOR REFERENCE ONLY. EXISTING DRAWINGS PROVIDED IN APPENDIX OF SPECIFICATION FOR REFERENCE ONLY. 3. CONTRACTOR SHALL VERIFY ALL DIMENSIONS, ELEVATIONS AND SLOPES IN THE FIELD AND CONTRACTOR SHALL VERIFY ALL DIMENSIONS, ELEVATIONS AND SLOPES IN THE FIELD AND SUBMIT TO ENGINEER FOR RECORD. 4. ELEVATIONS SHALL BE TAKEN BY A LICENSED SURVEYOR. ELEVATIONS SHALL BE TAKEN BY A LICENSED SURVEYOR. 5. ELEVATIONS AND DIMENSIONS SHALL BE PROVIDED IN THE RECORD DRAWINGS. ELEVATIONS AND DIMENSIONS SHALL BE PROVIDED IN THE RECORD DRAWINGS. 6. ALL DIMENSIONS AND ELEVATIONS REQUIRED FOR NEW EQUIPMENT/WORK SHALL BE ALL DIMENSIONS AND ELEVATIONS REQUIRED FOR NEW EQUIPMENT/WORK SHALL BE CONFIRMED BY THE CONTRACTOR AND SUPPLIED BY THE EQUIPMENT MANUFACTURER PRIOR TO PERFORMING THE WORK. 7. PRESSURE RELIEF VALVES ARE IN THE FLOOR OF THE CLARIFIER. PRESSURE RELIEF VALVES ARE IN THE FLOOR OF THE CLARIFIER. 8. RELIEF VALVE SHALL NOT BE DAMAGED. RELIEF VALVE SHALL NOT BE DAMAGED. 9. NEW GROUT SHALL NOT COVER THE RELIEF VALVES. NEW GROUT SHALL NOT COVER THE RELIEF VALVES. 10. CONTRACTOR TO PROVIDE DEWATERING AS NECESSARY TO KEEP WATER OUT OF THE CONTRACTOR TO PROVIDE DEWATERING AS NECESSARY TO KEEP WATER OUT OF THE CLARIFIER DURING THE WORK AND SHALL OBTAIN AND PAY FOR ALL PERMITS NECESSARY FOR DEWATERING. 11. CONTRACTOR SHALL TAKE A MINIMUM OF 8 SETS OF MEASUREMENTS AROUND THE CONTRACTOR SHALL TAKE A MINIMUM OF 8 SETS OF MEASUREMENTS AROUND THE CLARIFIER THAT INCLUDES BUT IS NOT LIMITED TO: SLOPE, BASE PLATE ELEVATION, ELEVATION MIDWAY UP THE SLOPE, ELEVATION AT THE TOP OF THE RELIEF VALVES AND THE LAUNDERER SUPPORTS. 12. SUBMIT GROUT REMOVAL PLAN OUTLINING METHOD OF REMOVAL, HOW DEPTH OF REMOVAL SUBMIT GROUT REMOVAL PLAN OUTLINING METHOD OF REMOVAL, HOW DEPTH OF REMOVAL WILL BE MONITORED. 13. COORDINATE PAINT COLOR WITH OWNER. COORDINATE PAINT COLOR WITH OWNER.
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RAKE BLADE SUPPORT
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DIMENSION VARIES: 9" AT TANK WALL, 27" AT MECH. CENTER
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RAKE ARM CHORD
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ADJUSTABLE 20 GA 304 SS SQUEEGEES
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RAKE BLADE 0.25" STEEL PLATE
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1 1/2" CLEAR
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TOP OF GROUT
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N.T.S.
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M-2
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5
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CLARIFIER PLAN AND SECTION
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NO.
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OF
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DRAWING
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SHEET
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
WALKWAY (3'-0" WIDE) WITH 1 1/4" ALUMINUM I BAR GRATING
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24'-0" INSIDE DIA. FEEDWELL
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NOM. 8'-0" SQUARE DRIVE PLATFORM
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FEEDWELL SUPPORTS
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4' SCUM BOX
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SKIMMER ASSEMBLY (TYP BOTH ARMS)
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C40 DRIVE UNIT, CHAIN DRIVE W/ GUARD
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INFLUENT COLUMN
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FEEDWELL
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3' WIDE WALKWAY TRUSS MEMBERS SERVE AS HANDRAIL AND TOE PLATE
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10' DIA ENERGY DISSIPATING INLET W/ 8 SCOOPS & PORTS
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SKIMMER SUPPORT (TYP)
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CAGE - 4'-0" SQ.
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1
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12
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100'-0" INSIDE TANK DIAMETER
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SWD 10'-2" +/-
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FEED WELL SUPPORTS
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SKIMMER BLADE
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4' SCUM BOX
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SCUM BOX SUPPORTS
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SCALE: NOT TO SCALE
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SECONDARY CLARIFIER PLAN
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M-2
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1
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SCALE: NOT TO SCALE
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SECONDARY CLARIFIER SECTION
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M-2
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A
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A
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M-2
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EXISTING CONCRETE WALL
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SCUM BAFFLE, RADIUS 45'-9 3/4"
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WEIR
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ELEV. 21.96
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ELEV. 10.06
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SCALE: NONE
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FRP WEIR AND BAFFLE SECTION
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SECONDARY CLARIFIER
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M-2
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B
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M-2
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B
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XXXXXX
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XXXXXX
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ELEV. 17.58
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FEEDWELL BAFFLES (TYP)
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RAKE ARM W/ ADJUSTABLE SQUEEGEES (TYP)
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EX. INFLUENT PIPE
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CONCRETE OVERFLOW LAUNDER
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SKIMMING DEVICE
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PLATFORM HANDRAIL AND PLATFORM
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WATER LEVEL (W.L. REFERENCE)
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EX CONCRETE STRUCTURE
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SKIMMING DEVICE
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CONCRETE OVERFLOW LAUNDER
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V-NOTCH WEIR
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BAFFLE
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GROUT - MIN 2"
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24'-0" INSIDE DIA. FEEDWELL
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SUPPORT BRACE (TYP)
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FLUSH VALVE
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6" GLASS LINED DIP SCUM PIPE, CUSTOM FABRICATED, ORIENTATE TO SUIT EXISTING CONNECTION, MINIMUM SLOPE 0.25" PER FOOT TOWARD SCUM PIT. CONNECT TO EXISTING CONNECTION.
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EX. SCUM PIPE, COORDINATE LOCATION
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CONCRETE OVERFLOW LAUNDER
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CONCRETE OVERFLOW LAUNDER
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DIRECTION OF ROTATION
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3'-01" SQUARE RAKE ARM
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SKIMMING DEVICE
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SKIMMING DEVICE
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RAKE BLADE W/ ADJUSTABLE SQUEEGEES (TYP)
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RAKE ARM
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EX. PLATFORM AND STAIRS NOT SHOWN (TYP)
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GENERAL NOTES:
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WEIR DESIGN & FLOW RATE WEIR LENGTH....................................301.6 FT TOTAL NUMBER OF V NOTCHES.......402 AVERAGE FLOW 20 MGD W.L. EL 20.34 PEAK FLOW 30 MGD W.L. EL 20.39
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SCUM BAFFLE
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TOP OF V-NOTCH WEIR EL. 20.42
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LAUNDER WALL
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ADJUSTABLE BAFFLE SUPPORT
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1/2" SS WEIR AND BAFFLE EXPANSION ANCHORS (TYP.)
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BOTTOM OF V-NOTCH EL. 20.09
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20 MGD EL. 20.34
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TOP OF CHAMFERED LAUNDER WALL EL. 19.92
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1.SEE GENERAL NOTES ON M-1.SEE GENERAL NOTES ON M-1.
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SCALE: NONE
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RAKE BLADE DETAIL
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SECONDARY CLARIFIER
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M-2
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C
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ELEV. 10.23
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3 POLE - 30 AMP NEMA 4X STAINLESS STEEL NON-FUSED DISCONNECT SWITCH MOUNT TO HANDRAIL
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M
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A
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E-1
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B
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DRIVE MOTOR
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6
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E-1
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A
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A
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S
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J
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GFI
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WP
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GFI
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WP
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20 AMP, 125 VOLT WEATHERPROOF GROUND FAULT INTERRUPTER TYPE DUPLEX RECEPTACLE (TYPICAL OF 2)
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1
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2
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2
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6
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E-1
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A
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WP
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8#8 & 1#8 GRD IN 1"C.
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EX
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EX
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4
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5
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3
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11
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AS NOTED
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E-1
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6
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CLARIFIER PLAN AND DETAILS
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NO.
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OF
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DRAWING
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SHEET
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CHARLES COUNTY, MARYLAND ELECTION DISTRICT NO. 6
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NO.
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DATE
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W.O.
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CONSTRUCTION REVISION
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14369000
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6
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PROFESSIONAL CERTIFICATION. I HEREBY CERTIFY THAT THESE DOCUMENTS WERE PREPARED OR APPROVED BY ME, AND THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF MARYLAND. LICENSE NO. , , , EXPIRATION DATE: . ..
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AUGUST 2018
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OWNER:
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WHITMAN, REQUARDT AND ASSOCIATES, LLP ENGINEERS 801 SOUTH CAROLINE STREET BALTIMORE, MARYLAND 21231 410-235-3450 FAX 410-243-5716
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301-753-8270
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CHARLES COUNTY GOVERNMENT, DPW 5310 HAWTHORNE ROAD LA PLATA, MARYLAND 20646
STAINLESS STEEL NUT, LOCKWASHER AND BOLT ASSEMBLY FOR PLATE ATTACHMENT TO CHANNEL (TYPICAL)
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1/8" THICK STAINLESS STEEL PLATE FOR EQUIPMENT MOUNTING: LENGTH AND WIDTH TO SUIT EQUIPMENT INSTALLED
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HANDRAIL
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NOTE 2
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NOTE 2
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NOTE 1
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STAINLESS STEEL BACKPLATE
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NOTES:
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12 GAUGE, HALF SLOT STAINLESS STEEL CHANNEL 1-5/8" x 1-5/8"
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FRONT ELEVATION
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SIDE ELEVATION
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ALL NUTS, BOLTS WASHERS, ETC USED IN ASSEMBLY AND EQUIPMENT MOUNTING TO BE STAINLESS STEEL. SECURE CHANNEL TO HANDRAIL USING 12 GAUGE STAINLESS STEEL PIPE STRAPS, SIZE TO SUIT HANDRAIL. LENGTH OF CHANNEL TO SUIT HANDRAIL SPACING.
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1.
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2.
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3.
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SCALE: NOT TO SCALE
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CLARIFIER BRIDGE DETAIL
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FIXTURE MOUNTING ON
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E-1
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A
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CROUSE-HINDS UNIVERSAL RAIL MOUNT BRACKET CATALOG NUMBER MHK-XX. TYPE AND MATERIAL OF BRACKET SHALL MATCH HANDRAIL-TYPICAL OF TWO BRACKETS PER POLE (TABULAR RAIL BRACKET SHOWN)
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CONDUIT
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CONDUIT BODY
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SECONDARY CLARIFIER WALKWAY
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TYPE 'A' FIXTURE SHOWN IN THE LOWERED POSITION (5'-3" MINIMUM HEIGHT IN LOWERED POSITION)
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CROUSE-HINDS V-SPRING TELESCOPING LIGHT POLE. CATALOG NUMBER V65-H-X-C. POLE MATERIAL SHALL MATCH THE HANDRAIL MATERIAL
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TYPE 'A' FIXTURE SHOWN IN THE RAISED POSITION (8'-6" MAXIMUM HEIGHT IN RAISED POSITION)
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SECONDARY CLARIFIER HANDRAIL
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0
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SCALE:
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3/16" = 1'-0"
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10'
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6'
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2'
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4'
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SCALE: NOT TO SCALE
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EXISTING MOTOR CONTROL CENTER - MCC7 ELEVATION
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E-1
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C
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1A
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7A
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8
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7
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DRAWING NOTES
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MOUNT SWITCH TO VERTICAL HANDRAIL MEMBER. ONLY WALKWAY LIGHTS TO BE CONTROLLED BY SWITCH. RECEPTACLES TO BE ENERGIZED AT ALL TIMES. 4#10 & 1#10 GRD IN 3/4"C. FOR FINAL CLARIFIERS NO. 1, 2, 3 AND 4 LIGHT AND RECEPTACLE CIRCUITS. CONNECT TO EXISTING TERMINAL STRIPS IN EXISTING PULLBOX. 4#10 & 1#10 GRD IN EXISTING CONDUIT TO EXISTING PANEL RP7 IN EXISTING BUILDING 17, RAS #2. SEE SITE PLAN ON SHEET M-1. 8#8 & 1#8 GRD IN EXISTING CONDUIT TO EXISTING SECONDARY CLARIFIER NO. 5 MOTOR STARTER IN EXISTING MOTOR CONTROL CENTER 7 (MCC7-7A) IN EXISTING BUILDING 17, RAS #2. SEE SITE PLAN ON SHEET M-1. 8#8 & 1#8 IN EXISTING CONDUIT TO EXISTING SECONDARY CLARIFIER NO. 6 MOTOR STARTER IN EXISTING MOTOR CONTROL CENTER 7 (MCC7-1A) IN EXISTING BUILDING 17, RAS #2. SEE SITE PLAN ON SHEET M-1. TYPE "A" FIXTURE - 25 DEGREE ANGLED STANTION MOUNTED, 41 WATT, 3515 LUMEN, WET LOCATION LED FIXTURE WITH TYPE 1 OPTICAL DISTRIBUTION PATTERN, TEFLON COATED LENS, EPOXY POWDER COATED DIE CAST ALUMINUM HOUSING, STAINLESS STEEL HARDWARE AND WIRE GUARD. FIXTURE SHALL BE CROUSE-HINDS LIGHTING CATALOG NUMBER: PVM-3L-J-RI-G-UNVI-S896. EXISTING SECONDARY CLARIFIER DRIVE NO. 5 MOTOR STARTER AND CONTROLS TO REMAIN. EXISTING SECONDARY CLARIFIER DRIVE NO. 6 MOTOR STARTER AND CONTROLS TO REMAIN. TYPICAL FOR SECONDARY CLARIFIERS NO. 5 AND NO. 6. FOR ADDITIONAL WORK SEE SECONDARY CLARIFIER WIRING SCHEMATIC ON SHEET M-1. EXISTING NOTOR CONTROL CENTER -MCC7 CUTLER-HAMMER SERIES 2100 LOCATED IN EXISTING BUILDING #17, RAS #2 TO REMAIN. REPLACE EXISTING PULL BOX AND TERMINAL STRIPS WITH A NEW NEMA 4X STAINLESS STEEL PULL BOX AND NEW 600 VOLT TERMINAL STRIPS. CONNECT EXISTING CONDUITS TO NEW PULL BOX AND WIRES TO TERMINAL WIRES TO TERMINAL WIRES TO TERMINAL STRIPS.
