§ 7148.2. SAME: MINIMUM DEPTH OF COVER.

The following minimum depths of cover below existing, or proposed, gutter grade shall be required for all underground pipelines within the roadway area:

• a. Local streets (Up to 70' R/W Width)

  • (1) 24 inches for service pipelines.

  • (2) 30 inches for all pipelines transporting nonhazardous substances.

  • (3) 30 inches for electrical facilities.

  • (4) 42 inches for all pipelines transporting hazardous substances as defined in Section 7100.14 of this Code.

• b. Major Highways (Above 70' R/W Width)

  • (1) 24 inches for service pipelines.

  • (2) 36 inches for pipelines transporting nonhazardous substances.

  • (3) 42 inches for electrical facilities.

  • (4) 42 inches for pipelines transporting hazardous substances as defined in Section 7100.14 of this Code.

(Added by Ord. 850, adopted 5-12-87)

Underground cable TV and special telephone conduits shall have a minimum depth of cover of 18 inches below existing, or proposed, edge of gutter and be placed in existing roadways, as follows:

• a. Mainline cable conduit in a four- to six-inch wide trench located adjacent to the concrete gutter, or three feet from the curb, or proposed curb, if no gutter exists.

• b. Service cable conduits crossing the roadway from the mainline to serve users on the opposite side of local streets when installed by an acceptable boring method.

• (Added by Ord. 850, adopted 5-12-87)