SECTION 714 - CURBING AND GUTTER
714-01 Stone Curb
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 700 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 4
714-01 Stone Curb
SCOPE. This specification covers the material and fabrication requirements for stone curb used in highway and bridge construction. MATERIAL REQUIREMENTS. Stone curb shall be sound and durable, free from seams which impair its structural integrity and of a smooth splitting and machining character. Natural color variations that are characteristic of the deposit will be permitted. Any curb containing discoloration other than cleanable surface stains shall be sampled and submitted to the Materials Bureau for evaluation.
A.Color. The color of curb sections shall be consistent with adjacent curb sections already in place, and consistent with each other. If no reference is available or specified in the contract documents the color shall be gray.
B.Dimensions
1.General. Curb shall be cut to conform to the shape and size shown on the Standard Sheets and contract plans.
2.Curbs on Straight Sections. Minimum lengths of straight segments of Light Duty, and Sloped curbs shall be 2 feet. All other straight curb types shall have 3-foot minimum lengths.
3.Curbs on Curved Sections. For curves with a radius of 175 feet or more, the curb lengths shall conform to the above guidance on Straight Sections. Curb segments on curves with radii of 175 to 100 feet shall be cut in straight 3- to 5-foot lengths or, preferably, for radii closer to 100 feet, shaped pieces of 3 to 7 feet in length. Except for Light Duty and Sloped curbs, segments on curves with a radius of less than 100 feet shall be shaped to the required curvature and the ends cut radially to length. Radius (ft) Allowable Segment Length Range (ft) 100 – 10 3 – 7 (shorter lengths permitted for closure pieces) < 10 2 - 4 For Light Duty and Sloped curbs on curves, the curb may be furnished in straight lengths where the following radius and length limits apply. Radius (ft) Allowable Segment Length Range (ft) 100 – 50 2 – 4 50 – 10 1.5 – 3 < 10 1 - 2 For lengths under 100 feet, Light Duty curb shall be radially cut on the ends. For lengths under 100 feet, the ends of Sloped curb shall be radially cut relative to its final inclined orientation.
4.Transition Curb for Bridge to Roadway Curbs. A transition curb for bridge curb to roadway curb shall be furnished, if required. Where an 8-inch exposed face is desired for a roadway curb, the appropriate curb sections with a 6-inch exposed face shown on the appropriate section of the Standard Sheet shall be increased 2 inches in depth.
5.Curb Widths. The bottom width tolerances of the various types of curbing shall be as follows:
714-01 Stone Curb
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 700 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 4 Type Bottom Width Light Duty (LD) Down to 3 inches for maximum 1/4 of length Near Vertical Face (NVF), Lean Back (LB) Option 2, and Mountable (MT) Down to 4 inches for maximum 1/4 of length Lean Back (LB) Option 1, Radius Down to 5 inches for maximum 1/4 of length Traversable (TR) Down to 10 inches for maximum 1/4 of length
C.Finish
1.General. Curb surfaces shall be finished as indicated on the plans or Standard Sheets.
2.Top Surfaces. Top surfaces shall be finished to approximately true planes. When sawed, hammered or thermal finishes are applied, no projection or depression shall be greater than 3/16 inch. Saw marks normal to the sawing process will be permitted if within the 3/16-inch tolerance.
3.Arris Lines. Top front arris lines shall be straight and true with no variations greater than 1/8 inch measured with a 2-foot straight edge placed along the arris line. Back arris line on curb type F1 curb and the lower front arris line on type F1 curb shall be straight and true with no variations from a straight line greater than 1/4 inch measured in the same manner. Exposed arris lines at the joints shall not project beyond the plane of a split face and shall not fall under the plane of a split face more than 1/4 inch.
4.Back Surfaces Back surfaces, when tilted to vertical, shall have no projection or depression in the top three inches which exceeds a batter of 1 inch in 3 inches
5.Front Exposed Faces. Front exposed faces of straight Type, Mountable and F1curbs, when split, shall have no projection greater than 1 inch or depression greater than 1/2 inch measured from a vertical plane passing through the arris line at the top of the split face. For radius units, the front exposed faces, when split, shall have no projection greater than 1 1/4 inch. Front faces below grade shall have no depression greater than 1 inch measured in the same manner.
6.Ends. Ends of straight curbs shall be approximately square with the planes of the exposed curb surfaces and all curbs shall be finished so that when curbs are set, no space greater than 3/4 inch shall show in the joints for the full length of the exposed joint. The curb ends below the pavement surface or shoulder shall break not over 8 inches from the joint plane on curb types Near Vertical Face and Mountable curbs. Ends of type F1 curb shall be sawed at locations called for on the contract plans.
7.Drill Holes. Drill holes shall not be permitted in exposed curb surfaces.
D.Exceptions to Finish Requirements
1.Sloped Type Curb. Exposed faces shall be relatively smooth and quarry split to an approximately true plane having no projection or depression greater than 1 inch from a 2-foot straightedge placed as closely as possible to the plane of the curb face. Arris lines at joints shall not project beyond the plane of the split face and shall not fall more than 1/2 inch under the plane of the split face. Curb ends shall be approximately square with the plane of the exposed curb surfaces and finished so that when curbs are set, no space greater than 3/4 inch shall show in the joints for the full width of the face.
714-02 and 714-03 (Vacant)
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 700 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 4
2.Light Duty Type Curbs. Front arris lines shall not vary from a straight line more than 1/2 inch. Exposed joint openings shall not exceed 1 1/2 inch. BASIS OF APPROVAL. Dimension stone curb sources are approved based on testing and a favorable geologic evaluation of the stone quarry. The stone shall be sound and durable, and contain no fractures, cracks, or seams which impair its structural integrity. The stone shall be of a smooth splitting and machining character. Natural color variations that are characteristic of the deposit will be permitted. Approval is maintained by routine testing, demonstrating the capacity to supply highway and bridge curb, and maintaining a current company contact and color sample, to the satisfaction of the Director of the Materials Engineering Bureau. BASIS OF ACCEPTANCE. Stone curb shall be from a source appearing on the Department's Approved List and will be inspected for dimensional, color, and quality compliance at the project site by the Engineer. Curbing not in compliance with the contract specified color, or dimensions on the Standard Sheets or contract plans will be rejected by the Engineer.
714-02 and 714-03 (Vacant)
714-04 Precast Concrete Curb
SCOPE. This specification covers the material and fabrication requirements for precast concrete curb. MATERIAL REQUIREMENTS. The Material Requirements contained in §704-03 shall apply. DRAWINGS. The Drawing requirements contained in §704-03 shall apply. FABRICATION. The Fabrication requirements contained in §704-03, along with the following shall apply. Precast curb shall be fabricated to conform to the size and shape shown on the standard sheet unless otherwise shown on the plans. Minimum curb lengths shall be 6 feet except for radial curb and closures. Maximum curb lengths shall be 10 feet. Curb to be set on a radius of 100 feet or less shall be cast to the curve required and the ends shall be formed or sawed on radial lines. Curbs to be set on a radius of 101 to 200 feet may be cast or cut in 3 or 4 foot straight lengths, if approved by the Engineer.
A.Reinforcing. Reinforcement is optional, however if the manufacturer chooses to reinforce the curb for handling the reinforcement shall be epoxy coated or the concrete shall contain corrosion inhibitor. SAMPLING AND TESTING. The Sampling And Testing requirements contained in §704-03 shall apply. MARKING. The Marking requirements contained in §704-03 shall apply except as noted herein. Markings shall be placed on an end face of each unit such that they won’t be exposed to view after installation. Instead of marking the contract number on each unit they may be marked with “NYSDOT”. FINAL PRODUCTION INSPECTION. The Final Production Inspection requirements contained in §704-03 shall apply. SHIPPING. The Shipping requirements contained in §704-03 shall apply.
714-05 (Vacant)
NEW YORK STATE DEPARTMENT OF TRANSPORTATION Section 700 STANDARD SPECIFICATIONS (USC) January 1, 2026 VOLUME 4 BASIS OF ACCEPTANCE. The Basis Of Acceptance requirements contained in §704-03 shall apply.
714-05 (Vacant)
714-06 (Vacant)
714-07 Precast Concrete Gutter
SCOPE. This specification covers the material and fabrication requirements for precast concrete gutter. MATERIAL REQUIREMENTS. The Material Requirements contained in §704-03 shall apply. DRAWINGS. The Drawing requirements contained in §704-03 shall apply. FABRICATION. The Fabrication requirements contained in §704-03, along with the following shall apply. Precast concrete gutter shall be fabricated to conform to the size and shape shown on the standard sheet unless otherwise shown on the plans.
A.Reinforcing. Wire mesh reinforcement shall consist of one layer of Size 4 x 4 inch - W4 x W4 embedded midway between the upper and lower surfaces, unless otherwise shown on the plans. Reinforcing bars of equivalent area may be substituted for the wire mesh reinforcement. Reinforcement shall be epoxy coated or the concrete shall contain corrosion inhibitor. SAMPLING AND TESTING. The Sampling And Testing requirements contained in §704-03 shall apply. MARKING. The Marking requirements contained in §704-03 shall apply except as noted herein. Markings shall be placed on an end face of each unit such that they won’t be exposed to view after installation. Instead of marking the contract number on each unit they may be marked with “NYSDOT”. FINAL PRODUCTION INSPECTION. The Final Production Inspection requirements contained in §704-03 shall apply. SHIPPING. The Shipping requirements contained in §704-03 shall apply. BASIS OF ACCEPTANCE. The Basis Of Acceptance requirements contained in §704-03 shall apply.
714-99 for Site Manager Use
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Source: Standard Specifications (US Customary Units), 2026 (Jan) Edition. Pages 1265–1269 of 1,489. View official source ↗