An adequate system for the drainage of all surface water, including ditches, pipes, culverts, intersectional drains, drop inlets, bridges and other structures, shall be constructed. Such drains shall comply as to size with such requirements, in conformity with good engineering practice, as the City Manager prescribes. However, such drains shall not be less than fifteen inches in diameter. Cross drains shall be constructed to accommodate all natural water flow, be built on a straight line and grade, be laid on a firm base but not on rock and be of sufficient length to permit construction of streets and alleys to their required width and grades. Surface drainage pipes shall be laid with the spigot end pointed in the direction of the flow, and all ends shall be fitted and matched to provide tight joints and a smooth uniform invert. Such pipes shall be placed at a depth below the road bed that is sufficient to avoid dangerous pressure from impact, and the tops of such pipes shall not be less than one foot below the surface of the road bed.
(Ord. 1049. Passed 2-26-85.)