Single Trip Overweight Permit Process for Local Bridges

Local Agency issues

overweight permit.

Restriction may apply

based on RF.

START

YES Is local bridge

load posted?

NO

Overweight permit truck is NOT

ALLOWED to cross the bridge. MN

Statute 169.84, Load Limit on Bridge

Local Agency denies

overweight permit

Local Agency hires

consultant to perform

permit load rating analysis

(State Aid Bridge Load

Rating Engineer provides

AASHTOWare BrR files to

consultant, if available,

upon request and in some

circumstances will

perform the load rating

analysis)

Local Agency issues,

denies or restricts

overweight permit

Consultant sends permit

recommendations via-email

to local agency (and cc State

Aid Bridge Load Rating

Engineer with load rating

analysis files).

ABOVE C

NO

Determine Overweight Truck Classification.

Local Agency performs A, B, C Permit Truck

Classification Calculator. (State Aid Bridge Load

Rating Engineer provides assistance as required)

Is the truck A, B, C or Above C?

YES

A, B or C

Has bridge been load rated for A, B, C trucks? Locate the overweight permit

code values on page 1 of the bridge load rating form under Overweight Permit

Codes or on page 1 of the bridge inventory report under Capacity Ratings

located on the lower right hand corner.

Note: If blank, NA or N then the bridge has not been rated for the A, B, C trucks)

Determine the permit code definition of the

overweight permit truck.

Overweight

Permit may

cross the bridge

without any

restriction.

Overweight

permit must

straddle two

lanes when

crossing bridge.

Overweight

permit must drive

at a speed of 10

mph or less when

crossing bridge.

Deny permit.

Overweight

permit vehicle is

NOT ALLOWED

on bridge.

1 X 3 2

FORM RC-CL Revised Aug. 2018

MnDOT BRIDGE RATING AND LOAD POSTING REPORT

FOR COUNTY AND LOCAL AGENCIES

Bridge Location and Description

Hwy. No. Sample Over Under

Bridge No. 12345

State Aid River

Year Built 2019 Year Remodeled Replaces Br.

Type 501 County MnDOT Ref. Pt.

Description Single Span, no skew, 46ft roadway, 9" concrete deck, concrete parapet barrier

Location .1 Mil north of JCT C.R. 14 in Oakdale

Data for Basis of Report (Check all that apply) NBI Condition Ratings

Deck

Superstructure

8

Bridge Inventory File 8

Previous Bridge Rating and Load Posting Report Substructure 8

Bridge Plans Culvert

New Overlay HCAADT 1

Repair/Reconstruction

Other Dead Load Modifications

Bridge Inspected by Date

Damaged Component

Deteriorated Component

Types of Analysis:

Manual AASHTOWare BrR, V.6.8.3 Computer* Other*

*

Method of Rating (Check appropriate box)

Load Factor (LFR) Assigned LFR Design Load HL-93

Allowable Stress (ASR) Assigned LRFR

Load & Resistance Factor (LRFR) Load Testing Design Method LRFD

Field Eval./Doc. Engineering Judgment

Summary of Rating and Load Posting Analysis

Load Posting Required

Bridge Rating Not Required

Sign TONS

R12-1a Inventory Operating

R12-5a HS

RF

HS

RF R12-5 M3 M3S2-40 M3S3

1.0 1.3

R12-X11 45 Overweight Permit Codes

R11-2a BRIDGE CLOSED A 1 B 1 C 1

I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.

Signature: Date: 01/01/19

(Typed or Printed) Name: John Sample License No. 00000

(Typed or Printed) Employed by ( Agency/ Firm): MnDOT State Aid Bridge

My signature below indicates that I have read and fully agreed with the load rating report.

Program Administrator’s Signature: Date: 01/01/19

SAMPLE

SAMPLE

Page 1 of 6

MINNESOTA STRUCTURE INVENTORY REPORT

Date: 07/29/2019Bridge ID: 12345 LAUREL ST over MISSISSIPPI RIVER

Agency Br. No.

+ GENERAL +

Maint. AreaDistrict METROCounty 00 - STATE AID City OAKDALE

Township

Desc. Loc. 0.4 MI W OF JCT TH 371

Sect., Twp., Range 04 - 133N - 28W

Latitude

Longitude

44d 59m 58.00N92d 57m 49.2W

Custodian

Owner

STATESTATE

Insp Responsibility

Year Built

CITY OF OAKDALE2019

Skew

+ ROADWAY ON BRIDGE +

+ STRUCTURE +

Bridge Match ID

Roadway Key

1

1-ON

Type 2 WAY TRAF

+ INSPECTION +

Deficient Status

Sufficiency Rating

ADEQ

98.3

If Divided NB-EB SB-WB

Roadway Width

Vertical Clearance

Service On

Service Under

C.R.RIVER

Main Span Type

Main Span Detail

PRESTR BM SPAN

Appr. Span Type

Appr. Span Detail

Culvert Type

Barrel Length

Number of Spans

MAIN: 4 APPR: 0 TOTAL: 1Main Span Length

Structure Length

100ft

Deck Width

100.0 ft 46 ft

Deck Material C-I-P CONCRETE

Wear Surf Type MONOLITHIC CONC

Wear Surf Install Year

Wear Course/Fill Depth

Deck Membrane NONE

Deck Rebars EPOXY COATED REBAR

Deck Rebars Install Year 1979

Structure Area

Roadway Area

Sidewalk Width - L/R

Curb Height - L/R

Rail Codes - L/R

00 sq ft

00 sq ft

0.0 ft 00 ft 0.83 ft 0.83 ft

17 17 Vertical

Horizontal

Traffic

Posted Load

+ BRIDGE SIGNS +

NOT REQUIRED

NOT REQUIRED

NOT REQUIRED

NOT APPLICABLE

+ NBI CONDITION RATINGS +

Deck

Superstructure

Substructure

Channel

Culvert

88

85

N

+ NBI APPRAISAL RATINGS +

Structure Evaluation

Deck Geometry

Underclearances

Waterway Adequacy

Approach Alignment

88N

8

8

+ SAFETY FEATURES +

Bridge Railing

GR Transition

Appr. Guardrail

GR Termini

Drainage Area

1-MEETS STANDARDS

0-SUBSTANDARD

0-SUBSTANDARD

N-NOT REQUIRED

+ RDWY DIMENSIONS ON BRIDGE +

46.0 ft

Max. Vert. Clear.

Horizontal Clear. 51.9 ft

Appr. Surface Width

Bridge Roadway Width

46.0 ft

Median Width on Bridge

460 ft

NA

+ MISC. BRIDGE DATA +

Structure Flared

Parallel Structure

Field Conn. ID

Cantilever ID

Overweight Permit Codes

Foundations

Abut.

Pier

Year Painted

Painted Area

Primer Type

Finish Type

NO

NONE

A: 1 B: 1 C: 1

CONC - FTG PILE

CONC - FTG PILE

+ PAINT +

+ WATERWAY +

Waterway Opening

Navigation Control

Pier Protection

Nav. Vert./Horz. Clr.

Nav. Vert. Lift Bridge Clear.

MN Scour Code

Scour Evaluation Year

0000 sq ft

NO PRMT REQD

I-LOW RISK

Design Load

Operating Rating

Inventory Rating

HL 93RF 1.00 (HL-93)

RF 1.3 (HL-93)

+ CAPACITY RATINGS +

+ SPECIAL INSPECTIONS +

Frac. Critical

Underwater

Pinned Asbly.

N

Y

N

Posting

Rating Date 1-01-2019

Last Routine Insp Date 1-1-2019

Routine Insp Frequency 24 Inspector

Name CITY OF OAKDALE

Status A-OPEN

Crew

Historic Status

On - Off System ON

NOT ELIGIBLE

Date Opened to Traffic 01-01-2019

MN Year Remodeled

FHWA Year Reconstructed Bridge Plan Location CENTRAL

Potential ABC N.A.

Road Name STATE AID Functional

Class. URB/MINOR ART

ADT (YEAR) 1 (2019)

HCADT

National Highway System N Route

Sys/Nbr C.R 14

Ref. Point (TIS) 000+00.000

Detour Length 0 mi.

Lanes 2 Lanes ON Bridge Control

Section (TH Only) Function MAINLINE