SECTION 603 - CULVERTS AND STORM DRAINS
603-1 DESCRIPTION. Construct culverts and storm drains in accordance with these specifications, the
contract plans, and the appropriate standard sheets.
603-2 Materials
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3
603-2.01 General. Materials requirements are specified in the following subsections:
Geotextile 207 Portland Cement Concrete 501 Portland Cement 701-01 Masonry Cement 701-02 Concrete Repair Material 701-04 Concrete Repair Material – High Early Strength 701-12 Mortar Sand 703-03 Reinforced Concrete Pipe 706-02 Reinforced Concrete Elliptical Pipe 706-03 Reinforced Concrete End Sections 706-07 Polypropylene Pipe 706-08 Smooth Interior Corrugated Polyethylene Pipe 706-12 Corrugated Steel Pipe 707-02 Ductile Iron Pipe (Non-Pressure) 707-03 Corrugated Structural Steel Plate for Pipe, Pipe-Arches and Underpasses 707-09 Galvanized Steel End Sections 707-10 Aluminum End Sections 707-11 Corrugated Aluminum Pipe 707-13 Corrugated Aluminum Structural Plate for Pipe and Pipe-Arches 707-14 Polymer Coated Corrugated Structural Steel Plate for Pipe, Pipe-Arches and Underpasses 707-15 Anchor Bolts for Corrugated Culverts 707-20 Non-Reinforced Concrete Pipe 706-01 Zinc Chromate Primer 708-04 Bar Reinforcement, Grade 60 709-01 Wire Fabric for Concrete Reinforcement 709-02 Plastic Coated Fiber Blankets (For Curing) 711-03 Membrane Curing Compound 711-05 Water 712-01 Galvanized Coatings and Repair Methods 719-01
603-3 Construction Details
603-3.01 Excavation. Apply the requirements specified in Section 206, Trench, Culvert and Structure
Excavation, except as modified by the Contract Documents or as directed by the Engineer.
603-3.02 Laying Pipe
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 spigot and the new bell with an approved concrete repair material (§701-04 or §701-12). Alternate designs may be submitted to the Director, Materials Bureau, for approval. Where the spigot end fits into the bell end and the clearance is so great as to render the elastomeric gasket or preformed sealer ineffective, join the pipe by caulking a gasket of jute or oakum into the joint space and then fill with mortar of equal parts of Portland Cement and Mortar Sand or a preformed or poured caulking compound of a type approved by the Engineer.
603-3.03 Bedding and Backfilling Pipe. Apply the standards of Section 203, Select Granular Fill and
the appropriate NYSDOT Standard Sheets. Select Granular Fill used to backfill around aluminum or aluminum coated pipes will be free of portland cement unless the pipe sections are thoroughly coated with Zinc Chromate Primer, §708-04 or an equivalent alternative as approved by the Materials Bureau. 100% of the Select Granular Fill used around Type IR and IIR corrugated aluminum pipe must pass a 2 inch sieve.
603-3.04 Damaged Pipe and Repair
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3
603-3.05 Field Strutting of Corrugated and Structural Plate Pipe. Field strutting of corrugated metal
pipe and structural plate pipe may be done at the Contractor's option and expense to provide added protection from construction equipment and other loads during installation, backfilling and filling above the pipe. The method and scheduling of installation and removal of strutting, must be approved by the Engineer. Field strutting shall constitute installation of structurally sound timber sills, compression caps and struts.
603-3.06 Joints
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 test between consecutive manholes. Perform the test by filling the pipe with water to a height 24 inches above the top of the pipe at the upstream manhole and allowing the pipe to remain saturated for a period of 72 hours prior to checking for leakage. No more than 250 gallons per inch of pipe diameter per mile in a 24 hour period will be allowed. Where a culvert or a storm drain system is open at either one or both ends, with or without end sections, use a minimum of 90 inches. Round pipe less than 24 inches in diameter, elliptical pipe, and larger diameter round pipe beginning with 66 inch diameter where the weight of the pipe section requires a shorter length shall have a minimum length of 72 inch. Shorter sections will be permitted where they are required to obtain an exact length of culvert. Use of shorter sections requires approval by the Engineer. For closed storm drain systems, drains having structures such as drop inlets on each end, the length of sections is unspecified. Connect the first three full sections at the open end(s) of a culvert or storm drain system together to restrain movement of the sections. A full section is defined as a section with a minimum laying length of 90 or 72 inches as defined in the preceding paragraph. An end section is considered as the first section. If a short section is used at the end or within the first three full sections of a culvert, connect it together with the first three full sections. Use a device at the springline on each side of the pipe to restrain the sections from movement. Use a device at least 12 feet in length when using 90 inch minimum length pipe sections and at least 120 inches in length when used with 72 inch minimum length sections. Securely anchor the devices to the pipe, with minimum slack in the device and the joints. Locate anchoring points a minimum of 18 inches from the end of the pipe sections and the flared end sections. Anchor each end of the device with a 1 inch diameter bolt with a nut and washer, or its equivalent, through the section wall. Apply ANSI B 18.2.1, ANSI B 18.2.2 and ANSI B 27.2, Grade A or B respectively for all nuts, bolts, and washers. For all round pipe 48 inches in diameter and smaller, and/or equivalent diameter elliptical pipe use a steel strap for the restraining device conforming to ASTM A36 with a minimum width of 2 1/4 inches , 1/4 inch minimum thickness with 1 1/4 inch maximum diameter holes centered 1 1/2 inch from each end. For pipe larger than 48 inches in diameter and for cattle pass, the requirements for the restraining devices will be shown on the contract plans. Apply the requirements of §719-01, Galvanized Coatings and Repair Methods: Type I for straps and Type II for nuts, bolts, and washers for the steel strap and anchoring hardware. Alternative designs of the restraining device and anchoring hardware will be considered for approval by the Director of the Materials Bureau if they provide equivalent restraining properties and durability. Restraining devices may be placed on either the inside or outside of the pipe. If placed on the inside, the device shall not protrude from the wall to the degree where flow would be obstructed. Only cold bending of the restraining device is allowed. Holes in the pipe and end sections required for the anchor bolts may be drilled in the field.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3
603-3.07 Concrete Paving for Corrugated Structural Plate Pipe. Place reinforced Portland Cement
Concrete over the inverts of corrugated structural plate pipe where specified and indicated on the Contract Documents, so as to form a smooth interior. Do not place pavement until the embankment has been completed over the pipe and settlement has been completed to the satisfaction of the Engineer. Pave the bottom 25 percent of the inside circumference for round pipe, the bottom 30 percent of the inside periphery for arch spans of 10 feet 3 inches and shorter and the bottom 35 percent of the inside periphery for arch spans longer than 10 feet 3 inches unless otherwise specified by the Engineer. A minimum cover of 4 inches is required over all corrugations. Schedule and conduct the diversion of water operations prior to and during the placement of pavement in a manner satisfactory to the Engineer. Prior to placing pavement clean and dry the surfaces to be in contact with concrete to the satisfaction of the Engineer. Place the steel fabric reinforcement on the crests of corrugations and securely fasten to the pipe or pipe-arch by welding or by other methods acceptable to the Engineer. Place the reinforcement to provide a 4 inch minimum clearance from the edges of concrete and lap 6 inch minimum. Unless otherwise shown on the plans, the steel fabric reinforcement shall consist of No. 6 gauge wire at 6 inch centers transversely and longitudinally. Finish the pavement to a smooth surface acceptable to the Engineer. Within 18 hours after completion of finishing, protect the surface by either an approved curing cover or an approved membrane curing compound applied at a minimum rate of 1 gallon per 150 square feet. However, any concrete in the invert that would be exposed to sunlight must be cured immediately after the finishing operations have been completed and the surface water has evaporated. Cure the concrete for a minimum period of 48 hours before water is permitted to flow on the invert. If the atmospheric temperature is below 45°F, the requirements of 555-3.08C, Provisions for Concreting in Cold Weather, shall apply.
603-3.08 Relaying Pipe. Carefully remove, clean, preserve, haul and relay pipe as directed by the
Engineer or as called for in the Contract Documents. The relaid pipe shall be true to line and grade, and have a full, firm, even bearing and be comparable to newly laid pipe. Construct joints of relayed pipe as specified in §603-3.06. When existing pipe is damaged during removal or relaying, rendering it unfunctional, replace it with new pipe at no additional cost to the State. Existing pipe which is determined by the Engineer to be unfit for relaying may be destroyed before removal. Apply the requirements of §603-3.03 for backfill and placement.
603-3.09 Anchor Bolts. Unless instructed otherwise, use anchor bolts, as specified in §707-20 to anchor
the ends of corrugated metal pipes, and sectional plate arches to either reinforced or plain concrete headwalls.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3
603-3.10 Culvert-End Safety Grates. Culvert-end safety grates shall be fabricated in accordance with
the Standard Sheets. The grate shall lay flat on the embankment slope, overlap the opening equally on each side, and at the top as indicated in the contract documents. The Contractor shall perform any necessary excavation, backfill, and final slope shaping and grading to ensure proper grate support and smooth uniform slopes in the area surrounding the grate. All disturbed areas will be reestablished to the satisfaction of the Engineer.
603-4 Method of Measurement
603-4.01 Pipe. The Engineer will measure the pipe, in feet along the bottom centerline, furnished and
incorporated into the work in accordance with the Contract Documents.
603-4.02 End Sections. The Engineer will count the number of units of each size or diameter furnished
and incorporated into the work in accordance with the Contract Documents.
603-4.03 Relaying Pipe. The Engineer will measure the existing pipe relayed and any new pipe laid and
furnished to replace existing pipe, in feet along the bottom centerline, incorporated into the work in accordance with the Contract Documents.
603-4.04 Concrete Collars. The Engineer will count the number of concrete collars furnished and
incorporated into the work in accordance with the Contract Documents.
603-4.05 Culvert-End Safety Grates. Culvert-end safety grates will be measured in square feet to the
nearest 0.1 square foot of safety-grate installed, using payment areas shown on the Standard Sheet. For sizes that are not shown on the Standard Sheet, the area will be computed as the product of the overall length and width.
603-5 Basis of Payment
603-5.01 General. The accepted quantities of all pipe construction and reconstruction will be paid for at
the contract price bid which will include the cost of furnishing all labor, materials and equipment necessary to complete the work including those joints made with oakum, portland cement and mortar or poured caulking compounds. For concrete end sections include the cost of the restraining devices and their installation. If no end sections are specified and restraining devices are required, include the cost of the restraining devices in the unit price bid for the pipe. Include the cost of bituminous coating or concrete paving including steel wire fabric reinforcement, when specified in the unit price bid for the respective pipe items. Include the cost of breaking into existing drainage structures to connect new pipe in the unit bid price for the respective pipe items. Include the cost of anchor bolts, when required, in the unit bid price for pipe items. Progress payment may be made to the extent of 80% of the price bid for pipe items requiring concrete invert paving when the installation is substantially completed and backfilled to a minimum of 24 inch over the top of the pipe plus whatever additional cover is necessary to protect the installation from construction traffic. The remaining 20% will be paid upon completion of the invert paving. Excavation, granular fill and backfill will be paid for separately under their appropriate items in Sections 203 and 206, as applicable except include the additional costs necessary for the special gradation for Backfill Material for Corrugated Aluminum Pipe-Type IR and the additional cost necessary to assure the backfill material be free of portland cement in the unit bid price for these pipes. Include the cost of adding water for compaction in the price bid, unless items for furnishing water equipment and applying water are included in the proposal.
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 Payment for the geotextile material and its installation is included under the structural pipe arch item.
603-5.02 End Sections. Include the cost of all labor, materials and equipment necessary to complete the
work as specified in the contract documents. The cost of the restraining devices and their installation, required for concrete pipe, shall be included in the unit price bid for the end sections.
603-5.03 Concrete Collars. Include the cost of all labor, materials (including concrete repair material)
and equipment necessary to complete the work as specified in the contract documents.
603-5.04 Culvert-End Safety Grates. The unit price bid shall include the cost of all labor, materials,
and equipment necessary to complete the work, including excavation, topsoil, seeding and mulching. Payment will be made under: Item No. Item Pay Unit 603.0101 Culvert-End Safety Grate Square Foot 603.0102 Culvert-End Safety Grate (Heavy-Duty) Square Foot 603.02xx Non-Reinforced Concrete Pipe Foot 603.05xxxx Corrugated Steel Pipe (2 2/3 x 1/2) Foot 603.06xxxx Corrugated Steel Pipe Paved Invert (2 2/3 x 1/2) Foot 603.07xxxx Corrugated Steel Pipe Fully Paved (2 2/3 x 1/2) Foot 603.08xxxx Corrugated Steel Pipe Arch (2 2/3 x 1/2) Foot 603.09xxxx Corrugated Steel Pipe Arch, Paved Invert (2 2/3 x 1/2) Foot 603.10xxxx Corrugated Steel Pipe Arch, Fully Paved (2 2/3 x 1/2) Foot 603.11xxxx Corrugated Steel Pipe (3 x 1) or (5 x 1) Foot 603.12xxxx Corrugated Steel Pipe Paved Invert (3 x 1) or (5 x 1) Foot 603.13xxxx Corrugated Steel Pipe Fully Paved (3 x 1) or (5 x 1) Foot 603.14xxxx Corrugated Steel Pipe Arch (3 x 1) or (5 x 1) Foot 603.15xxxx Corrugated Steel Pipe Arch Paved Invert (3 x 1) or (5 x 1) Foot 603.17xxxx Galvanized Steel End Sections Pipe (2 2/3 x 1/2) Each 603.18xxxx Galvanized Steel End Sections Pipe Arch (2 2/3 x 1/2) Each 603.20xxxx Galvanized Steel End Sections Pipe Arch (3 x 1) or (5 x 1) Each 603.23xx Corrugated Structural Steel Plate Pipe (60 - 108 Diam.) Foot 603.24xx Corrugated Structural Steel Plate Pipe (114 - 162 Diam.) Foot 603.25xx Corrugated Structural Steel Plate Pipe (168 - 216 Diam.) Foot 603.26xx Corrugated Structural Steel Plate Pipe (222- 252 Diam.) Foot 603.27xx Corrugated Structural Steel Plate Pipe PCC Paved Invert (60 - 108 Diam.) Foot 603.28xx Corrugated Structural Steel Plate Pipe PCC Paved Invert (114 - 162 Diam.) Foot 603.29xx Corrugated Structural Steel Plate Pipe PCC Paved Invert (168 - 216 Diam.) Foot 603.30xx Corrugated Structural Steel Plate Pipe PCC Paved Invert (222 - 252 Diam.) Foot 603.31xx Corrugated Structural Steel Plate Pipe Arch (6 feet 1 inch - 20 feet 7 inch span, 9PI, Corner Plate) Foot 603.32xx Corrugated Structural Steel Plate Pipe Arch, PCC Paved Invert (6 feet 1 inch - 19 feet 8 inch span, 9PI, Corner Plate) Foot 603.33xx Polymer Coated Corrugated Structural Steel Plate Pipe Arch (6 feet 1 inch - 20 feet 7 inch span, 9PI, Corner Plate) Foot 603.35xx Corrugated Structural Steel Plate Underpass Foot 603.36xx Polymer Coated Corrugated Structural Steel Plate Pipe (60 - 108 Diam.) Foot 603.37xx Polymer Coated Corrugated Structural Steel Plate Pipe (114 - 162 Diam.) Foot 603.38xx Polymer Coated Corrugated Structural Steel Plate Pipe (168 - 216 Diam.) Foot 603.39xx Polymer Coated Corrugated Structural Steel Plate Pipe (222- 252 Diam.) Foot 603.40xxxx Round Corrugated Aluminum Pipe (2 2/3 x 1/2) (12 - 30 Diam.) Foot
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 603.41xxxx Round Corrugated Aluminum Pipe (3 x 1) (36 - 96 Diam.) Foot 603.44xxxx Corrugated Aluminum Structural Plate Pipe (9 x 2 1/2)(60 - 114 Diam.) Foot 603.46xxxx Corrugated Aluminum Structural Plate Pipe (9 x 2 1/2)(120- 180 Diam.) Foot 603.48xxxx Corrugated Aluminum Pipe-Arch (2 2/3 x 1/2)(17 Span, 13 Rise) to (57 Span, 38 Rise), and (3 x 1) (60 span, 46 Rise to 95 Span, 67 Rise) Foot 603.50xxxx Corrugated Aluminum Structural Plate Pipe-Arch (9 x 2 1/2) (6 ft 1 in Span, 5 ft Rise to 11 ft 5 in Span, 7 ft Rise) Foot 603.52xxxx Corrugated Aluminum Structural Plate Pipe-Arch (9 x 2 1/2) (12 feet 3 inch Span, 7 feet 3 inch Rise to 19 feet 5 inch Span, 11 feet 11 inch Rise) Foot 603.53xxxx Corrugated Aluminum Pipe, Type IIR Foot 603.54xxxx Corrugated Aluminum End Sections Pipe Each 603.55xxxx Corrugated Aluminum End Sections, Pipe Arch Each 603.56xxxx Corrugated Steel Pipe- Type IR Foot 603.58xxxx Corrugated Aluminum Pipe- Type IR Foot 603.59xxxx Corrugated Steel Pipe- Type IIR Foot 603.60xx Reinforced Concrete Pipe Class III Foot 603.61xx Reinforced Concrete Pipe Class IV Foot 603.62xx Reinforced Concrete Pipe Class V Foot 603.66xx Reinforced Concrete Horizontal Elliptical Pipe Class HE II Foot 603.67xx Reinforced Concrete Horizontal Elliptical Pipe, Class HE III Foot 603.68xx Reinforced Concrete Horizontal Elliptical Pipe, Class HE IV Foot 603.69xx Reinforced Concrete Vertical Elliptical Pipe, Class VE IV Foot 603.70xx Reinforced Concrete Vertical Elliptical Pipe, Class VE V Foot 603.71xx Reinforced Concrete Vertical Elliptical Pipe, Class VE VI Foot 603.72xx Reinforced Concrete Cattle Pass Foot 603.73xx Reinforced Concrete Pipe End Sections Each 603.74xx Reinforced Concrete Pipe Class II Foot 603.77 Concrete Collars Each 603.7802xx Polypropylene Pipe (Optional) -Type S, or Type D Foot xx= 12, 15, 18, 24, 30, 36, 42, 48, 60 (denoting pipe diameter in inches) 603.80xxxx Corrugated Steel Pipe-Polymer Coated (2 2/3 x 1/2) Foot 603.81xxxx Corrugated Steel Pipe-Polymer Coated Paved Invert (2 2/3 x 1/2) Foot 603.82xxxx Corrugated Steel Pipe-Arch Polymer Coated (2 2/3 x 1/2) Foot 603.83xxxx Corrugated Steel Pipe-Arch Polymer Coated Paved Invert (2 2/3 x 1/2) Foot 603.84xxxx Corrugated Steel Pipe-Polymer Coated (3x1) or (5x1) Foot 603.85xxxx Corrugated Steel Pipe-Polymer Coated Paved Invert (3x1) or (5x1) Foot 603.86xxxx Corrugated Steel Pipe-Arch Polymer Coated (3x1) or (5x1) Foot 603.87xxxx Corrugated Steel Pipe-Arch Polymer Coated Paved Invert (3x1) or (5x1) Foot 603.88xxxx Corrugated Steel Pipe-Aluminum Coated (Type II) (2 2/3 x 1/2) Foot 603.89xxxx Corrugated Steel Pipe-Arch Aluminum Coated(Type II)(2 2/3 x 1/2) Foot 603.90xxxx Corrugated Steel Pipe-Aluminum Coated (Type II)(3x1) or (5x1) Foot 603.91xxxx Corrugated Steel Pipe-Arch Aluminum Coated(Type II)(3x1) or (5x1) Foot 603.92xxxx Corrugated Steel Pipe-Aluminum Coated (Type 2) Type IR Foot 603.93xxxx Corrugated Steel Pipe-Arch Aluminum Coated (Type 2) Type IIR Foot 603.95xx Ductile Iron Pipe Foot 603.96xxxx Smooth Lined Corrugated Aluminum Pipe (2 2/3 x 1/2) Foot 603.97xxxx Smooth Lined Corrugated Aluminum Pipe (3 x 1) Foot 603.98xx Smooth Interior Corrugated Polyethylene Culvert and Storm Drain Pipe Foot 603.99 Relaying Pipe Foot
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NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 600 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 3 Refer to Standard Contract Pay Item Catalog for full Item Number and full Description. Numbers in parentheses (without denotation) are spacing and depth of corrugations in inches.
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