Section_11_Concrete_Curb_Gutter_Sidewalk_and_Driveways_(1).pdf
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- Attached to
- CFD Sidewalk Replacement 2026
- Solicitation number
- 26-027-ITB
- Issued by
- Yolo County, California
About this file
This is a technical specification document for concrete curb, gutter, sidewalk, and driveway construction issued by the City of West Sacramento, California, for the CFD Sidewalk Replacement 2026 project. The project encompasses the removal and replacement of damaged 4-inch Portland Cement Concrete (PCC) sidewalk panels at multiple locations within Community Facilities Districts, including sawcutting, removal and legal disposal of existing panels, subgrade preparation, aggregate base installation, PCC sidewalk replacement, and root barrier and driveway crossing reconstruction where applicable. Work is measured and paid on a per-square-foot unit price basis for sidewalks, with linear foot pricing for curb and gutter, and per-unit pricing for driveways, access ramps, and drop inlets. Sealed responses must be received no later than Friday, September 4, 2026 at 2:00 pm. The specifications reference the State Standard Specifications and City Standard Details 201 through 264, and in the event of conflicts between specifications, the most stringent requirement shall govern.
All concrete materials must meet a minimum compressive strength of 4,000 pounds per square inch (psi) and shall not contain Calcium Chloride. Concrete must be delivered in agitating transit mixers, with non-agitating equipment prohibited without specific written approval from the City Engineer. Subgrade preparation requires ninety-five percent relative compaction to a six-inch depth, and base materials must consist of Class 2 Aggregate Base mechanically compacted to the same ninety-five percent specification. Concrete placement and finishing are prohibited during rain or freezing conditions, and all concrete surfaces must be finished with a medium broom finish. Curing shall be completed using pigmented curing compound in accordance with State Standard Specifications Section 90. Tool joints must be placed at minimum one and one-half inch depths and redressed to three-eighths inch widths; expansion joint material is expressly prohibited. All damaged concrete must be repaired by removal from the nearest existing joint and replacement to correct grade prior to City acceptance, and gutters must pass a flowing water test with the City Engineer or designated representative present.
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Text version
Division IV - Page 68
SECTION 11
CONCRETE CURB, GUTTER, SIDEWALK AND DRIVEWAYS
CONCRETE CURB, GUTTER, SIDEWALK AND DRIVEWAYS
11.01 DESCRIPTION
Work shall conform with Section 73 and Section 90 of the State Standard Specifications and City Standard Details 201 through 264 with the following additions. All curb, gutter, and sidewalks shall be constructed of minimum four thousand (4,000) pounds per square inch (psi) concrete. Calcium Chloride shall not be added to concrete. All concrete shall be delivered in transit mixers with agitating drums. Non-agitating transport equipment will not be allowed unless specific written approval is granted by the City Engineer.
For repair/placement of non-standard concrete flatwork (i.e., special finishes or color), refer to the project technical specifications, improvement plans, or contact the Construction Management and Facilities Development Division of the Capital Projects Department for specifications and requirements.
11.02 INSTALLATION
A. SUBGRADE PREPARATION - The finished subgrade immediately prior to placement of aggregate base shall be compacted to ninety-five (95) percent relative compaction for a depth of six (6) inches.
B. BASE - Shall be Class 2 Aggregate Base (3/4-inch maximum aggregate gradation) mechanically compacted to ninety-five (95) percent relative compaction.
C. EXTRUDED SIDEWALK, CURB AND GUTTER - Use of an extrusion machine is allowed for extruded sidewalk, curb, and gutter. Work shall conform to State Standard Specifications Section 73-1.03D with the exception of the cement content. A test pour may be required by the City Engineer prior to approval.
D. PLACING AND FINISHING - No concrete shall be placed or finished in the rain or under freezing conditions. It shall be the Contractor’s responsibility to schedule their operations such that concrete will not be placed or finished in the rain or under freezing conditions.
At the end of each day’s pour, when work is terminated, or when a delay of more than thirty (30) minutes occurs, the joint shall be made vertical and square ended with twelve (12) inch lengths of #4 reinforcement bar embedded at eighteen (18) inch centers.
When a concrete pour terminates at existing concrete, the rebar, as described above, shall be retrofitted by coring or drilling existing concrete (minimum of four (4) inches) installing bars and filling annular voids with epoxy. Existing concrete shall be removed to the nearest deep joint or score mark.
Division IV - Page 69
CONCRETE CURB, GUTTER, SIDEWALK AND DRIVEWAYS
Weakened plane joints shall be constructed according to the Standard Details.
Expansion joint material shall not be used.
All concrete surfaces shall be finished with a medium broom finish unless otherwise specified. A heavy broom finish will not be allowed. A concrete finish not conforming to the City Standard Specifications regarding blemishes and alignment tolerances shall be cause for rejection of the work.
Detectible warning (truncated dome) panels shall be placed at the back of curb line, immediately behind the curb and gutter, centered in the opening to the street (regardless of slope), at every curb ramp per City Standard Details 206 through 210, as applicable.
E. CURING - Cure concrete using the curing compound method with pigmented curing compound in accordance with the State Standard Specifications Section 90.
Completely coat the exposed faces of the concrete with curing compound.
F. JOINTS - Tool joints and score marks shall be placed through the sidewalk, curb, ramp and gutter section as shown on City Standard Details. All tool joints shall be a minimum of one and one-half (1.5) inches. Expansion joint material shall not be used.
The purpose of the tool joint is to separate the aggregate and control cracking. During concrete finishing, after placement of a one and one-half (1.5) inch-deep tool joint, the joint shall be redressed/finished with a three-eighths (3/8) inch joint tool.
Weakened plane joints shall be constructed to the City Standard Details. Expansion joint material shall not be used.
G. REPAIR OF CONCRETE CURB, GUTTER, SIDEWALK AND DRIVEWAYS - After construction and prior to acceptance, if any concrete becomes cracked, gouged, or otherwise damaged, the City Engineer shall require the concrete work be repaired by removing the damaged sections of concrete from the closest existing joint and replacing it to correct grade. Should existing concrete curb, gutter, sidewalk, and/or driveway be cracked, gouged, or otherwise damaged by work completed under City Encroachment Permit, said damaged concrete sections shall be repaired by replacement as described above, prior to City acceptance of encroachment permit work.
H. TESTING - After construction, gutters shall be checked with flowing water. The City Engineer or City designated representative must be present during the flow test. Any high spots or depressions revealed by the flow test shall be repaired by removing that section of concrete and replacing it to the correct grade.
11.03 MEASUREMENT AND PAYMENT
Concrete sidewalks (excluding curb and gutter, driveways, access ramps, and drop inlets) shall be measured and paid for by the square foot, with the length being measured along the center of the section.
Division IV - Page 70
CONCRETE CURB, GUTTER, SIDEWALK AND DRIVEWAYS
Concrete curb and gutter and barrier curb shall be measured and paid for by the linear foot, measured along the face of the curb, except those portions located within the limits of driveways, access ramps, drop inlets, and all associated transitions.
Concrete driveways, access ramps, and drop inlets shall be measured and paid for per each, or as specified in the contract documents, including the portion within the gutter pan.
Payment for units measured shall include labor, materials, equipment, tools, and incidentals required to construct a finished curb or flat work product, including subgrade, and aggregate base preparation all in accordance with the plans, specifications, and as directed by the City Engineer.
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