SPECIFICATIONS FOR STATE OF NEW HAMPSHIRE SNOW …

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Specifications NH Department of Transportation Snow Plows

SPECIFICATIONS FOR STATE OF NEW HAMPSHIRE SNOW PLOWS

GENERAL

It is the intent of this specification to describe snowplowing equipment required by the New Hampshire Department of Transportation suitable for sustained high speed plowing operations. All snow plow and snow wing plow equipment must fit existing predominantly Frink or Viking truck attachments and be suitable for immediate use without modification such that all snowplows and snow wing plows are interchangeable. Said equipment shall be ruggedly built from new material by experienced snow plow manufacturers capable of producing a minimum of 100 snow plow units per year and able to furnish parts and components promptly for current and previous models for that manufacturer. All snow plow and snow wing plow equipment shall be so designed to completely drain any areas of water collection when stored outside in upright position without loss of structural integrity. All left and right hand terminology used in this specification is relative to a driver sitting in a truck.

A metal identification plate shall be affixed to the top of each unit showing manufacturer, model number, serial number and year of manufacture (actual year or recognizably coded) in legible condition. Specific plow or wing information is a part of and attached to this specification.

TECHNICAL INFORMATION

Since the New Hampshire Department of Transportation (NHDOT) maintains repair and overhaul facilities with replacement part stocks to service equipment it owns and operates, all equipment, sub assemblies and attachments procured under this specification MUST be supported by the technical publications required for its operation, maintenance and repair, which is available to the manufacturers, dealers and repair centers. This shall include but not be limited to the following:

OPERATING INSTRUCTIONS - COMPLETE ROUTINE MAINTENANCE INSTRUCTIONS - COMPLETE SHOP REPAIR MANUAL/S COMPLETE PARTS LIST/S RECOMMENDED SPARE PARTS LIST MANUFACTURERS SERVICE BULLETINS

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SCHEMATIC DRAWINGS All of the above documents shall be provided to NHDOT as part of this procurement. Shop drawings of equipment must be sent in advance of the final bid award for review by NHDOT staff

SERVICE No award will be made to a dealer for equipment to be delivered and serviced outside that dealer's territory unless the manufacturer of the equipment guarantees in writing to the Director of Purchasing to arrange for service of such equipment, wherever located or purchased. The manufacturer's standard guarantee shall cover all equipment purchased and the contractor guarantees to furnish this service at no cost to New Hampshire Department of Transportation anywhere within the State of New Hampshire.

SAFETY Equipment shall meet all applicable safety requirements including those of O.S.H.A. All sharp edges and burrs that could be hazardous in the handling of equipment shall be removed.

APPROVED MANUFACTURERS

Everest LaRochelle Viking Tenco

WARRANTY

One year after acceptance by the Department. See Attachments:

Specifications - One-Way Plow Specifications - Two-Way (Reversible) Plow Specifications - Wing Plow

Detail Sheet - Carbide Blades - March 1995 Detail Sheet – Typical NH Carbide Blade Configuration for Wings

SPECIFICATIONS FOR STATE OF NEW HAMPSHIRE SNOW PLOWS SNOW PLOW, ONE-WAY FRONT-MOUNTED RIGHT (or LEFT) DISCHARGE, CONICAL SHAPED The front plow shall be a one-way, right (or left) discharge as specified, full trip type designed for high speed highway snow plowing and shall conform to minimum dimensions required as shown in chart under "MOLDBOARD MINIMUM DIMENSIONS" for light, medium and heavy plows. The plowing angle shall be approximately 35-37 degrees resulting in a cleared path of 8 feet or 9 feet as specified in chart for light, medium and heavy duty plow units. Weight of the complete one way plow and drive frame assembly shall be approximately 1,700 to 2,600 lbs. (See section entitled "WEIGHT" for specific minimum weight requirements for light, medium and heavy-duty plows).

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MOLDBOARD – ONE WAY PLOW The moldboard shall be fabricated of minimum 10 U.S.S. gauge steel (see moldboard minimum dimensions below), brake formed, rolled formed or paneled, including a top backer angle reinforcement or reinforced box brake at the top edge, and shall be stitch welded to a heavy steel framework of five or more full height one piece vertical ribs (ribs shall mirror the shape of the moldboard at installed location), horizontal reinforcements and mounting brackets. In addition, an intake end plate with minimum thickness of 1/4" thick steel shall be provided. The contour of the moldboard shall be ideal for efficient discharge of heavy and light snow at highway speeds and shall extend forward at such an angle to prevent snow from blowing over the top. Maximum length of moldboard shall occur at a point not more than 12" vertically below top of discharge end of moldboard such that snow displaced by the discharge end of cutting edge is redirected or deflected with a horizontal component. The design shall be proven under conditions of intended application and, in addition, shall be subject to testing under actual use conditions by the Department of Transportation prior to acceptance. The bottom, horizontal cutting edge reinforcement shall be a minimum of a 6" x 4" by 5/8” steel angle with a minimum of six (6) 3/8" steel gussets, continuously electrically welded to the moldboard framework and designed to withstand severe shock of high speed contact with road obstructions. Bolt holes shall be spaced to accommodate the standard 12” carbide punch and standard 8” carbide punch. See attached sketches. Dimensional tolerance between hole spacing is +/- 1/16” (non-accumulative) from center to center across the full length of the mold board. The moldboard framework shall be provided with at least three (3), double shear hinge points, or 2 with a roller in the middle, for attachment to the drive frame assembly.

A rubber snow deflector (15” wide X ½” thick) shall be mounted along the top edge, with a plastic or cable, 24” minimum length, plow guide installed on the intake end front corner.

DRIVE FRAME ASSEMBLY – ONE WAY PLOW The drive frame assembly shall be constructed of heavy structural steel members so assembled to withstand severe shock and torsional forces encountered during high speed plowing operations. The plow drive frame assembly shall consist of two truss members, a main drive cross member, an oscillating drive bar, and two trip spring moldboard attachment assemblies. The truss members shall be a minimum of a 5" x 5" x 1/4” or 4”x 4” x 3/8” wall square tubing and the drive cross member shall be a minimum of a 6" x 6" x 1/2" or 6” x 4”x 5/8” thick steel angle which shall be reinforced with minimum 1/4" thick steel plate, or equivalent tubular section. Welded to the main drive angle shall be three heavy slotted members, or 2 with a roller in the middle, to which the moldboard shall be attached by a minimum of 1-1/4" diameter hardened steel pins.

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Connected to each slotted member shall be a slide/trip spring assembly, which shall be grease able, consisting of a sliding weldment, a minimum of 1-1/4" diameter threaded rod and nut for spring pressure adjustment, spring pressure plate, and the manufacturer’s standard spring for the plow model (minimum spring diameter shall be 5/8”). A safety retention device shall also be installed for the spring assembly. The springs shall compress whenever the plow encounters obstructions and shall not be attached directly to the moldboard so as to eliminate interference with the cutting edge adjustment. A crank type jack (2000 lb load limit) removable without the use of tools shall be attached to aid in mounting and dismounting plow. An adjustable telescopic brace, with reinforced solid sleeved connection points to dissuade wear from occurring shall be provided to permit variations in cutting edge to ground plane angle, attached to the top of the moldboard assembly and to the drive frame assembly, and quickly adjustable by a 1/2 “ shear pin, without the use of tools. The angle of attack shall be approximately 60 degrees with telescopic brace in neutral position with the drive bar pins 17 inches above ground. Safety chains shall be attached to moldboard and drive frame to prevent moldboard from dropping when pin is sheared. The oscillating drive bar assembly shall consist of a minimum 1" thick by 6" wide oscillating equalizer bar and two 3/4" thick drive bars on 30-1/2" to 31” centers. The oscillating equalizer bar shall pivot on a 1-1/4 or 1-1/2" minimum diameter grade 8 hex head bolt at rear of drive frame assembly to allow the plow to follow uneven surface contours without putting excessive torsional stress on the truck chassis. The drive frame assembly shall be equipped with plow shoe mounting points for two vertically adjustable plow shoes with plow shoe assemblies being available for purchase separately. Said adjustability shall enable shoes to be set at infinite number of settings throughout the adjustment range utilizing slotted holes or other acceptable means. The drive frame assembly shall attach to the truck mounted hitch assembly at two points by double shear hinges with 1 1/4" diameter hardened steel plow pins with holes for 5/16" locking pins to secure plow pins in position. Push arms or drive arms shall have 1-1/4" holes.

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LIFTING HARDWARE – ONE WAY PLOW Each plow unit shall be equipped with appropriate connecting devices for and including 1/2" chain of appropriate length (54 links for light and medium plows and 64 links for heavy plows), bolts, nuts and washers, lifting hooks, etc. such that complete snow plow unit is ready to use without modification.

MOLDBOARD MINIMUM DIMENSIONS – ONE WAY PLOW

Light Medium Heavy Extra Heavy

Overall Moldboard Length 12'-3" 13'-4" 13'-10" 15'-10"

Shear Length (including nose shoe)

10'-0" 11'-3" 11'-3" 12'-3"

Width of space cleared at 37° 8' 9' 9' 10'

Moldboard height:

Nose end Lowest Point 26" 26" 30" 30"

Discharge end Highest Point 52" 54" 63" 66"

Moldboard minimum thickness - Gauge USS

10 10 10 10

For Reference Only: Cutting edge length 116" 132" 132" 144"

Length of nose shoe 4" 4" 4" 4" Total Length 120" 136" 136" 148"

NH Standard Carbide Blade 44E 28C 44E 44E 44C 44E 44E 44C 44E 44E 28C 28C 44E

Sections (for reference only and shown on attached sketch plan)

WEIGHT – ONE WAY PLOW The total weight of delivered plow assembly shall fall in the range as follows:

Light Duty 1,700 to 2,300 lbs Medium Duty 1,900 to 2,400 lbs Heavy Duty 2,050 to 2,600 lbs

Extra Heavy Duty 2,200 to 2,600 lbs

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PAINT AND PRIMER COATINGS

This specification is for paint and primer (coating supplies) provided to NHDOT and for primer and paint coatings utilized on equipment supplied to NHDOT.

All coating supplies and coatings utilized on equipment surfaces that are normally primed and painted shall be suitable for severe exposure to road salt and abrasion. Coatings shall conform to all applicable federal and state regulations and criteria pertaining to chemical and VOC content.

Coatings containing any compound that would render the waste paint, in its dried form, a hazardous waste per NH Code of Administrative Rules Chapter Env-Hw 400 are prohibited. This includes RCRA listed metals (e.g., Arsenic, Barium, Cadmium, Chromium, Lead, Mercury, Silver, Selenium) other than naturally occurring trace amounts associated with the coating pigments. The intent of this specification is to obtain or utilize paint such that any concentration of these metals shall not produce a TCLP test result that would fail NH DES toxicity characteristic standards and meets the latest governing regulatory criteria.

Coatings shall not contain hexavalent chromium or cadmium. For the purposes of this specification, a coating product "contains hexavalent chromium or cadmium" if hexavalent chromium or cadmium was introduced as a pigment or as an agent to impart any property or characteristic to the coating during manufacturing, distribution, or use of the applicable coating. Coatings supplied in bulk shall not contain a total VOC content greater than 2.8 lbs/gal (340 g/l).

A written certificate of conformance to these specifications shall be submitted to NHDOT, for coatings utilized on equipment supplied to NHDOT, indicating these compounds do not exceed Toxicity Characteristics of NH Code of Administrative Rules Env-Hw 403.06, Table 4.9, Regulatory Limits. Material Safety Data Sheets are not sufficient documentation of conformance. Laboratory test results must be supplied with the written certificate. The following test methods are incorporated by reference herein, and shall be used to test coatings.

1. American Society for Testing and Materials (ASTM) Method D3335-85a (1999), Standard Test Method for Low Concentrations of Lead, Cadmium, and Cobalt in paint by Atomic Absorption Spectroscopy.

2. American Society for Testing and Materials (ASTM) Method D3718-85a (1999), Standard Test Method for Low Concentrations of Chromium in paint by Atomic Absorption Spectroscopy.

3. EPA Test Method 1311 – TCLP Toxicity Characteristic Leaching Procedure.

4. EPA Test Methods 3010A/6010B.

5. Alternative methods which are shown to accurately determine the concentration of hexavalent chromium or cadmium compounds in a subject coating product or its emissions may be used upon written approval.

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The coatings also shall meet the following criteria:

Solids Content

% By Volume 45- 60

% By Weight 55 –70

Recommended Dry Film Thickness (DFT) 1 – 2 ml

Wet Film Thickness to Achieve DFT 2 ½ - 4 ½ ml

Practical Coverage at DFT 325 – 650 sq. ft.

Dry Time (70 – 800 F and 50% humidity)

Tack Free 4 – 6 hours

Handle 12 – 16 hours

Recoat 24 hours

Prior to painting, all metal surfaces shall be abrasively blasted to a minimum Commercial Blast Cleaning SSPC-SP6, NACE 3 (reference Steel Structures Painting Council) with a surface anchor profile of 1-2 mils, unless the requirements of the coating manufacturer are more restrictive, as achieved using an abrasive mixture of shot and grit. Measure the profile using Testex Replica Tape. Apply two separate coats of rust-inhibitive, heavy-duty primer, followed by one coat of industrial enamel topcoat. The finish color shall meet or closely approach NH Omaha Orange (Federal Standard 595B) color no. 12243. A color sample shall be submitted for approval by the Department. Coating application and workmanship shall meet the requirements of SSPC- PA1 (Shop, Field, and Maintenance Painting), and those of the coating manufacturer, whichever is more stringent. Prepared surfaces shall be primed within 8 hours of blast cleaning and before any visible rust appears. All painting shall be performed inside a building with atmospheric controls suitable for the application of paint in accordance with the manufacturer’s requirements. A coating manufacturer’s technical representative shall visit the work at least once to assure proper surface preparation and application of the coating.

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REFERENCE –ONE WAY PLOW Although the following makes and models are indicative of the type and quality required, all specifications indicated in the proposal must be met:

Manufacturer Light Medium Heavy Extra Heavy

Everest N/A OWSK9 OWSK9H OWSK10H

Larochelle SU8R3052 SU9R3054 SU9R3066 SU10R3069

Tenco N/A TCO-11S-55-SR-ST TCO-11S-66-SR-ST TCO-12S-68-SR-ST

Viking N/A 2654HSE 9 3564HSE 10 3566HSE 10

SPECIFICATIONS FOR STATE OF NEW HAMPSHIRE SNOW PLOWS

SNOW PLOW, REVERSIBLE FRONT-MOUNTED, CYLINDRICAL SHAPED The front plow shall be a power (or manual if so-specified) reversible, full trip type, designed for high speed highway snow plowing. The plow shall be not less than 10 feet long overall and not less than 36 inches high for light duty model; 11 feet long overall and not less than 36 inches high for medium duty model and not less than 11 feet long overall and 42 inches high for heavy duty model as defined elsewhere in this specification and designed for efficient, high speed highway snowplowing. Construction shall be of heavy steel members of such design and assembly to withstand severe service under adverse operating conditions. Weight of the complete reversible plow and drive frame assembly shall be approximately 1,500 to 2,500 lbs. (See section entitled "WEIGHT" for specific minimum weight requirements for light, medium and heavy-duty plows).

MOLDBOARD – REVERSIBLE PLOWS The moldboard shall be fabricated minimum 10 U.S.S. gauge steel, brake formed, roll formed or paneled including a box brake at the top edge, and shall be stitch welded to a heavy steel framework of five or more full height one piece vertical ribs (ribs shall mirror the shape of the moldboard at installed location), horizontal reinforcements and mounting brackets. The contour shall be ideal for efficient discharge of heavy and light snow at highway speeds and shall extend forward at such an angle equal to or approaching the attack angle of cutting edge with pavement surface to prevent snow from blowing over the top. The design shall be proven under conditions of intended application or shall be subject to testing under actual use conditions by the Department of Transportation prior to acceptance.

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The bottom horizontal, cutting edge reinforcement shall be a minimum of a 5" x 3 1/2" x 5/8" or 4” x 4” x ¾” steel angle with a minimum of six (6) 3/8" steel gussets, continuously electrically welded to the moldboard framework and designed to withstand severe shock of high speed contact with road obstructions. Bolt holes shall be spaced to accommodate the standard 12” carbide punch and standard 8” carbide punch. See attached sketches. Dimensional tolerance between hole spacing is +/- 1/16” (non-accumulative) from center to center across the full length of the mold board. The moldboard framework shall be provided with at least three (3), double shear hinge points with an outside spread of at least 80" for attachment to the drive frame assembly. A rubber snow deflector (15” wide X ½” thick) shall be mounted on the top edge, with a plastic or cable, 24” minimum length, plow guide on each end.

DRIVE FRAME ASSEMBLY –REVERSIBLE PLOWS The snow plow push frame shall consist of two major components as follows: 1) an arc shaped member which shall be attached directly to the moldboard double shear hinge points with hardened steel pins; 2) a triangular shaped member which shall attach to the truck-mounted hitch assembly at two (2) points by double shear hinges with 1-1/4" diameter hardened steel pins located on 30-1/2" centers. The two members shall be joined by a minimum of 1-1/2” diameter hardened steel bolt or pin, permitting the arc shaped member to swivel left and right on the triangular shaped member. Means shall be provided to permit the plow to float as required to maintain contact with uneven road contours without transmitting torsional stress to the chassis frame. The tripping device shall be single full trip design that shall activate when the cutting edge comes into contact with a pavement obstruction. The pivot points of the tripping edge shall be grease able. Trip activation shall be achieved through tension or compression springs and linkage system designed to permit adjustment of the cutting edge to ground plane angle and shall limit the tripping action to that deemed as necessary for safe and proper operation.

For power reversible models, the reversing 36(+/- 1) mechanism shall be powered by two or more pistons, a minimum 3” in diameter with piston rods a minimum of 1 ½” in diameter, a nitrate or similar corrosive resistant coating, a double acting hydraulic ram capable of positioning the moldboard

from bulldoze position to 36(+/- 1) left and right. An infinitely adjustable hydraulic system that will permit plowing at full range which is protected against shock loads by a cylinder protection relief valve and hoses mounted on the plow with provisions to pin plow at extreme left, extreme right and center. Plow angling shall be possible under all operating conditions. Two hydraulic hoses from the valve into the hitch into the truck couplers shall be 1/2” hose and fittings. All hydraulic hoses shall be located to prevent damage from the chains during all operating conditions. A crank type jack (2000 lb. load limit), removable without the use of tools, shall be attached to aid in mounting and dismounting of the plow.

The angle of attack shall be a minimum of 65 (+/- 10) degrees with telescopic brace in neutral position with the drive bar pins 17 inches above ground.

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Safety chains shall be attached to moldboard and drive frame to prevent moldboard from dropping when pin is sheared.

The drive frame assembly shall be equipped with plow shoe mounting points for two vertically

adjustable plow shoes with plow shoe assemblies being available for purchase separately. Said adjustability shall enable shoes to be set at infinite number of settings throughout the adjustment

range utilizing slotted holes or other acceptable means. Shoe shall have a maximum rotation of 20 from horizontal. The drive frame assembly shall attach to the truck mounted hitch assembly at two points by double shear hinges with 1 1/4" diameter hardened steel plow pins with holes for 5/16" locking pins to secure plow pins in position. Push arms or drive arms shall have 1-1/4" holes.

LIFTING HARDWARE – REVERSIBLE PLOWS

Each plow unit shall be equipped with appropriate connecting devices for and including 1/2" chain of appropriate length (54 links for light and medium plows and 64 links for heavy plows) or cable and sheave, bolts, nuts and washers, lifting hooks, etc. such that complete snow plow units are ready to use without modification.

APPROXIMATE DIMENSIONS & WEIGHT REQUIREMENTS – REVERSIBLE PLOW

Minimum for Light

Duty Minimum for Medium Duty

Minimum for Heavy

Duty

Minimum for Extra Heavy

Duty

Maximum For All

Reversibles

Manual Reversible Models

1,500 lbs. 1,600 lbs. 1,700 lbs. 1,800 lbs. 2,400 lbs

Power Reversible Models

1,600 lbs. 1,700 lbs. 1,800 lbs. 1,900 lbs. 2,500 lbs.

Moldboard Length 10 feet 11 feet 11 feet 12 feet

PAINT AND PRIMER COATING



Coatings containing any compound that would render the waste paint, in its dried form, a hazardous waste per NH Code of Administrative Rules Chapter Env-Hw 400 are prohibited. This includes RCRA listed metals (e.g., Arsenic, Barium, Cadmium, Chromium, Lead, Mercury, Silver, Selenium) other than naturally occurring trace amounts associated with the coating pigments. The intent of this specification is to obtain or utilize paint such that any concentration of these metals shall

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not produce a TCLP test result that would fail NH DES toxicity characteristic standards and meets the latest governing regulatory criteria.


A written certificate of conformance to these specifications shall be submitted to NHDOT, for coatings utilized on equipment supplied to NHDOT, indicating these compounds do not exceed Toxicity Characteristics of NH Code of Administrative Rules Env-Hw 403.06, Table 4.9 Regulatory Limits. Material Safety Data Sheets are not sufficient documentation of conformance. Laboratory test results must be supplied with the written certificate. The following test methods are incorporated by reference herein, and shall be used to test coatings.







Solids Content

% By Volume 45- 60






Tack Free 4 – 6 hours Handle 12 – 16 hours

Recoat 24 hours

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Prior to painting, all metal surfaces shall be abrasively blasted to a minimum Commercial Blast Cleaning SSPC-SP6, NACE 3 (reference Steel Structures Painting Council) with a surface anchor profile of 1-2 mils, unless the requirements of the coating manufacturer are more restrictive, as achieved using an abrasive mixture of shot and grit. Measure the profile using Testex Replica Tape. Coating application and workmanship shall meet the requirements of SSPC- PA1 (Shop, Field, and Maintenance Painting), and those of the coating manufacturer, whichever is more stringent. Prepared surfaces shall be primed within 8 hours of blast cleaning and before any visible rust appears. All painting shall be performed inside a building with atmospheric controls suitable for the application of paint in accordance with the manufacturer’s requirements. A coating manufacturer’s technical representative shall visit the work at least once to assure proper surface preparation and application of the coating.

REFERENCE – REVERSIBLE PLOW Although the following makes and models are indicative of the type and quality required, all specifications indicated in the proposal must be met:

Manufacturer Reversible Plow

Light Reversible Plow

Medium Reversible Plow

Heavy Reversible Plow

Extra Heavy

Everest RHS120TM36S RHS132TM36S RHS132TM45S RHS144TM45S

LaRochelle

LRC1038FT LRC 1138FT LRC 1142FT LRC 1242FT

Tenco TCP-10-S-42-FKC TCP-11-S-42-FKC TCP-11-S-RS-FKC TCP-12-S-42-FKC

Viking PRR1036FE PRR1136FE PRR1142FE PRR1242FE

NH Standard Carbide blades

44E 28C 44E 44E 44C 44E 44E 44C 44E 44E 44E 44E

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SPECIFICATIONS FOR STATE OF NEW HAMPSHIRE SNOW PLOWS SNOW WING PLOW, RIGHT (or Left) DISCHARGE

MOLDBOARD – PLOW WING

The snow wing plow shall be a full trip leveling model, right (or left) discharge as specified,

designed for high speed highway plowing and shall conform with approximate dimensions as shown in chart attached for the various duty models ordered. Moldboard shall be shaped in appropriate concave manner to control discharge of snow to prevent snow from blowing over the top during plowing operations. The maximum extension of the curved discharge end shall occur above a point projected at least 15 inches beyond the discharge end of cutting edges, and no more than 12 inches below the moldboard top edge. Two 1/2" x 2" steel bars or other suitable reinforcement shall form the horizontal support for this curved discharge section. The reinforcement steel bars shall be placed at equal distances from the top and bottom of the curved discharge section. For heavy and medium snow plow wings there must be at least four alternative vertical or horizontal pin connection points, 4-1/2” out more on top then bottom holes, on the wing for the wing arm connections to insure the proper angle between arm and wing (mounting steel where the wing arm attaches shall be ¾” minimum). Proper angle connection can also be made with a movable (sliding) system on the wing. The distance between the first point of the wing arm attachment and the hole (intake end) for the box attachment shall be a minimum of 92” with a minimum of 2 additional holes, 6” apart towards discharge of wing, except for light duty wings where the minimum shall be 1 additional hole. Holes are to be 1-5/16”.

Construction of moldboard shall be of minimum 10 U.S.S. gauge steel, brake formed or paneled

for additional rigidity, including a 3” x 3” x ¼” HSS angle iron or a minimum 3” x 2” full box brake at the top edge (or equivalent structural steel shape) and shall be welded to a heavy steel framework of vertical ribs and horizontal reinforcements. The bottom back area of the wing shall have a ¾” hole attachment point for a wing cable. For connection to the front post hinge, there will be a minimum of two 1-9/16" drilled holes through the nose plate, which shall be welded closed to prevent water/moisture from entering, utilizing a 1-1/2" hex head wing bolt and located approximately 16 1/2" above bottom of cutting edge. At the very nose of the wing, the edge just above where the cutting edge is attached/welded to the reinforced backer for the front post hinge, a drain hole shall be located to allow any moisture an avenue of exit. (See attached photo)

The bottom, horizontal cutting edge reinforcement shall be a minimum of 5" x 3-1/2" x 5/8" steel

angle with a minimum of six (6) 3/8” steel gussets continuously electrically welded to the moldboard framework and designed to withstand severe shock of high speed contact with road obstructions Bolt holes shall be spaced to accommodate the standard 12” carbide punch and standard 8” carbide punch. See attached sketches. Dimensional tolerance between hole spacing is +/- 1/16” (non-accumulative) from center to center across the full length of the mold board.

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APPROXIMATE DIMENSION AND WEIGHT REQUIREMENTS – PLOW WING

Extra Heavy Duty Model

Heavy Duty Model

Medium Duty Model

Light Duty Model

Overall length 13' 12' 11' 10'

Minimum gauge

U.S.S. 10 gauge U.S.S. 10 gauge U.S.S. 10 gauge U.S.S. 10 gauge

Length of cutting edge

12'-0" 11'-0" 10'-0" 9'-0"

Nose height 29" 29" 29" 29"

Discharge height

40" 39" 38" 36"

Minimum number of vertical ribs

8

5

5

5

Weight 900 - 1400 lbs 800 - 1100 lbs 700 - 1100 lbs 600 – 1000 lbs

PAINT AND PRIMER COATING



Coatings containing any compound that would render the waste paint, in its dried form, a hazardous waste per NH Code of Administrative Rules Chapter Env-Hw 400 are prohibited. This includes RCRA listed metals (e.g., Arsenic, Barium, Cadmium, Chromium, Lead, Mercury, Silver, Selenium) other than naturally occurring trace amounts associated with the coating pigments. The intent of this specification is to obtain or utilize paint such that any concentration of these metals shall not produce a TCLP test result that would fail NH DES toxicity characteristic standards and meets the latest governing regulatory criteria.


A written certificate of conformance to these specifications shall be submitted to NHDOT, for coatings utilized on equipment supplied to NHDOT, indicating these compounds do not exceed Toxicity Characteristics of NH Code of Administrative Rules Env-Hw 403.06, Table 4.9, Regulatory Limits. Material Safety Data Sheets are not sufficient documentation of conformance. Laboratory test results must be supplied with the written certificate. The following test methods are incorporated by reference herein, and shall be used to test coatings.

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Solids Content

% By Volume 45- 60






Tack Free 4 – 6 hours

Handle 12 – 16 hours

Recoat 24 hours Prior to painting, all metal surfaces shall be abrasively blasted to a minimum Commercial Blast Cleaning SSPC-SP6, NACE 3 (reference Steel Structures Painting Council) with a surface anchor profile of 1-2 mils, unless the requirements of the coating manufacturer are more restrictive, as achieved using an abrasive mixture of shot and grit. Measure the profile using Testex Replica Tape. Apply two separate coats of rust-inhibitive, heavy-duty primer, followed by one coat of industrial enamel topcoat. The finish color shall meet or closely approach NH Omaha Orange (Federal Standard 595B) color no. 12243. A color sample shall be submitted for approval by the Department. Coating application and workmanship shall meet the requirements of SSPC- PA1 (Shop, Field, and Maintenance Painting), and those of the coating manufacturer, whichever is more stringent. Prepared surfaces shall be primed within 8 hours of blast cleaning and before any visible rust appears. All painting shall be performed inside a building with atmospheric controls suitable for the application of paint in accordance with the manufacturer’s requirements. A coating manufacturer’s technical representative shall visit the work at least once to assure proper surface preparation and application of the coating.

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REFERENCE – PLOW WING

Although the following makes and models are indicative of the type and quality required, all specifications indicated in the proposal must be met:

Manufacturer Plow Wing Light Plow Wing

Medium Plow

WingHeavy Plow Wing Extra

Heavy

Everest W-120 W-132 W-144 W-156

LaRochelle 10W108NH 11W120NH 12W132NH 13W144NH

Tenco TCW-9S-37-N-R TCW-10S-38-N-R TCW-11S-39-N-R TCW-12S-40-N-R

Viking 120W-HD 132W-HD 144W-HD 156W-HD

NH Standard Carbide Blades

44E 28C 44E 44E 44C 44E 44E 44C 44E 44E 44E 44E

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Bureau of Highway Maintenance New Hampshire Department of Transportation

SPECIFICATION – DELIVERY LOCATIONS – Snow Plows and Wings BILL TO: NH Department of Transportation Highway Maintenance – Bureau 58 PO Box 483 Concord NH 03302-0483

DELIVER TO: NH DOT – Highway Maintenance Districts

Bill of Lading to show weight and number of pieces. FOB DESTINATION **** CALL 24 HOURS BEFORE DELIVERY ****

Delivery Locations for Snow Plows and Wings

DISTRICT

DELIVERY LOCATION / CONTACT PERSON

TELEPHONE

District 1 Eric Crane, Warehouse Supervisor NHDOT Whitefield Shed #107W 24 Foster Drive, Whitefield, NH 03598

Cell 603-631-9151 Dispatch 603-788-4641

District 2 Ralph Carter, Warehouse Supervisor Exit 16, I-89 Enfield 8 Eastman Hill Road Enfield, NH 03748

Cell 603-252-0503 Dispatch (603) 448-2654

District 3 Andrew Dame, Warehouse Supervisor NHDOT District 3 Weld Shop 42 North Ashland Road, Ashland NH 03217 (1/4 mile north of Route 3. Take Route 3 north from I-93, Exit 24)

Cell 603-344-0808 or 603-419-0810 Dispatch 603-524-6667

District 4 Dave Rattray, Warehouse Supervisor 19 Base Hill Road West Swanzey, NH 03446

Cell 603-419-0406 Dispatch 603-352-2302

District 5 Amy Mansfield, Warehouse Supervisor NHDOT District 5 Patrol Shed 506, 249 Pinewood Road Allenstown NH 03275 Rt. 28, North of the Junction of River Road

Cell 603-365-6955 603-666-3336

District 6 Rollin Rumsford, Warehouse Supervisor District Six Patrol Shed 608 73 Coffin Road Epping NH 03042 Route 125 Epping (Adjacent to Motor Vehicle / State Police Office)

Cell 603-419-9951 Dispatch 603-868-1133

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Documents

SPECIFICATIONS FOR STATE OF NEW HAMPSHIRE SNOW …