§ 5. CURB AND GUTTER

A.

General Requirements  

1.

Curb and gutter required. All new streets and access improvements shall be provided with curb and gutter except where approved for a rural road section by the city. All areas approved for use of the rural road section shall provide appropriate roadside drainage facilities designed in accordance with the Georgia Stormwater Management Manual as adopted by the city. All gutters shall drain smoothly with no areas of ponding.

2.

Alternative curb and gutter design. Alternative curbing designs such as rolled back or vertical curbing without a gutter may be approved by the Director when such designs are deemed appropriate for the type of development proposed.

3.

Standard Curbing. Only standard curb and gutter shall be used along any classified street. Header curbs may be used along medians when roadway drainage is directed away from the median. Mountable curbs shall not be used along pedestrian or bicycle facilities, along on-street parking or at the end of stub-roads.

B.

Local and Collector Road Curbing. Local and collector road curbing shall meet the following requirements:  

1.

Concrete shall be Class "A" (as defined by GDOT) and have a minimum strength of 3,000 PSI at 28 days.

2.

Typical minimum section shall be 6" x 24" x 12"(GDOT 24" Type II).

3.

Vertical curbing only, except where specific approval has been granted by the Director for an alternate curb design.

C.

Arterial Curbing. Arterial curbing shall meet the following requirements:  

1.

Concrete shall be Class "A" (as defined by GDOT) and have a minimum strength of 3,000 PSI at 28 days.

2.

Typical minimum section shall be 8" x 30" x 14" (GDOT 30" Type II).

3.

Vertical curbing only, except where mountable has been specified and approved by the Director.

D.

Construction Methods.  

1.

Curb and gutter shall be set true to line and grade, horizontal be field staked, and finished to the section shown on the plans. Along the frontage of a road which the city or GDOT has identified for resurfacing within one year of the new construction, the grade of the new gutter shall be placed one foot above the project access improvement pavement grade in areas where drainage will not be adversely affected.

2.

Line and grade shall be set by developer's engineer or surveyor on grade less than two percent and over 12 percent, and within 100 feet in both directions from all low points.

3.

One-half inch expansion joints or pre-molded bituminous expansion joint material shall be provided at all structures and radius points and at intervals not to exceed 250 feet in the remainder of the curb and gutter.

4.

Inferior workmanship or unprofessional construction methods resulting in unacceptable curb and gutter will be cause for rejection of the finished work.

5.

Disturbed areas along all curbing shall be backfilled, stabilized, and grassed.

6.

Demolition of existing curb and gutter shall be by saw cut only where existing curb and gutter will abut to new curb and gutter.