609.01 Description
This work is constructing curbs, integral curb and gutter, median curbs, and furnishing and installing precast concrete curbs.
609.02 Materials
Furnish materials in accordance with the following section and subsection requirements: Air-entrained Class General Concrete ..................... 551 Bituminous Mixtures ................................................ 401 Joint Materials ......................................................... 707.01 Reinforcing Steel ..................................................... 711.01 Pavement Markings ................................................ 714
609.03 Construction Requirements
609.03.1 General
Construct curbs and integral curb and gutter having uniform surfaces and true lines. Remove and replace curb sections that prevent drainage or proper joining of subsequent work at Contractor expense. Material may be placed adjacent to curbs and curbs and gutters 24 hours after the curbs or curbs and gutters are placed as long as no damage is caused. Correct all damages at Contractors expense. Do not add water to the surface of concrete before or during finishing.
609.03.2 Foundation and Forms
Excavate, prepare, and compact cast-in-place curb and curb and gutter foundations in accordance with Subsection 203.03.3 . Use full depth metal or straight-grained finished lumber forms, free of warp or irregularities, and having the strength to resist springing or deviation from alignment and grade. Securely stake and brace forms with headers and clamps. Clean and oil form surfaces in contact with concrete before placing the concrete.
609.03.3 Cast-in-Place Curb and Gutter
Moisten the foundations and forms immediately before placing concrete. Place and consolidate the concrete in uniform layers not exceeding 6-inch (150 mm) loose depth. Do not place concrete on a frozen foundation course or subgrade. Construct concrete curb in accordance with Subsections 501.03.18 and 501.03.16 . Once the concrete has its initial set, remove the forms and repair honeycombed and rough surfaces using 1:2 mortar. Use wooden floats to remove form marks or other irregularities. Apply a brush finish to the final surface using an approved brush before the concrete sets. Finish all concrete edges, including those at expansion joints, to the required radii. Water cure concrete or use a curing compound in accordance with Subsection 551.03.7 . Water cure, keeping the concrete wet for 7 calendar days after finishing.
609.03.4 Slip-formed Concrete Curb and Gutter
Concrete curb and gutter may be constructed using a curb forming or slip-form machine. 609 – CURBS AND GUTTERS 2020 EDITION V5.1 609-2
609.03.5 Precast Concrete Curbs
Furnish precast curb in accordance with Section 554.
609.03.6 Painting Curbs
Paint curbs, island curbs, and median curbs in accordance with Section 620.
609.04 Method of Measurement
Curb, integral curb and gutter, and median concrete curb are measured by the foot (m) along the face of the curb at the flow line. Paint and painting are measured by the gallon (L) in accordance with Subsection 620.04.
A.Contracts with Curb, Integral Curb and Gutter, Median Curb, and Precast Concrete Curb Work Not in Conjunction with Roadway Reconstruction. Reinforcing steel, expansion joint material, bond breaker, excavation or embankment, crushed gravel base, emulsified asphalt, backfill and/or necessary plant mix surfacing, and disposal of material associated with the work are not measured for payment.
B.All Other Contracts. Reinforcing steel, expansion joint material, bond breaker, disposal of material, and emulsified asphalt is not measured for payment. Excavation or embankment associated with the work is measured by the cubic yard (m 3).
609.05 Basis of Payment
Payment for completed and accepted quantities is made under the following: Pay Item Pay Unit Curb Foot (m) Integral Curb and Gutter Foot (m) Median Concrete Curb Foot (m) Curb Paint Gallon (L)
A.Contracts with Curb, Integral Curb and Gutter, Median Curb, and Precast Concrete Curb Work Not in Conjunction with Roadway Reconstruction. The cost of reinforcing steel, expansion joint material, bond breaker, curing compound, excavation or embankment, crushed gravel base, emulsified asphalt, backfill and/or necessary plant mix surfacing, and disposal of material associated with the work are included in the contract unit price of curb and gutter.
B.All Other Contracts. The cost of reinforcing steel, expansion joint material, bond breaker, curing compound, emulsified asphalt, and disposal of material associated with the work are included in the contract unit price of curb and gutter. Excavation or embankment associated with the work is paid for in accordance with the specified type of earthwork.
Referenced in this section
Sections that cite this one
Curbs and Gutters in other states
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Source: Standard Specifications for Road and Bridge Construction, 2020 (v5.1) Edition. Pages 429–430 of 611. View official source ↗