Contra Costa County Municipal Code Ch. 96-12 Curbs and Gutters

Curbs shall be required under any of the following conditions:

(1) The subdivision is within an R-20 district or a district having a smaller lot size;

(2) The grade of the street is less than one percent or more than six percent;

(3) The street frontage between adjacent sections of curb is less than five hundred feet;

(4) The subdivision is for commercial or industrial purposes.

(Ord. 78-5).

If curbs are required in any portion of a block within the subdivision, the entire frontage along that block shall be curbed.

(Ord. 78-5).

The minimum grade for curbs and gutters shall be one percent except a reduction may be authorized by the public works department.

(Ord. 78-5).

Improvement plans shall show curb profiles, including profiles for all curb returns and cul-de-sacs.

(Ord. 78-5).

Minimum top of curb elevations shall conform to Chapter 914-8.

(Ord. 78-5).

Article 96-12.4. Turnarounds

A paved turnaround shall be provided at the ends of cul-de-sac streets. The radius for the edge of pavement, or curbline, shall be thirty-five feet.

(Ord. 78-5).

Curblines at street intersections and turnarounds shall be constructed on a curve having a radius equal to that shown below:

Standard Radius for Curb Returns

(1) All residential street intersections, twenty feet;

(2) Cul-de-sac turnaround, thirty-five feet;

(3) Industrial street intersections, thirty feet.

(Ord. 78-5).

A paved turnaround area shall be provided at the end of any private road serving more than two lots. The radius for the edge of the pavement shall be thirty-five feet. Alternate turnaround provisions may be approved if adequate paved area is provided to accommodate normal residential traffic.

(Ord. 78-5).

Article 96-12.6. Driveways

An encroachment permit shall be obtained from the public works department before construction of any driveway.

(Ord. 78-5).