Roof drainage shall be handled by suitable collectors and downspouts which shall discharge into a sealed jointed storm drain of not less than four inches diameter with a slope of one-fourth of an inch or more per foot, or, if collectors and downspouts are omitted, adequate drainage shall be provided by other equally effective means in such manner as will protect the walls and foundation from damage and as will prevent such water from flowing onto sidewalks or walkways. Where a storm sewer or other storm drainage outlet is not available, downspouts may discharge onto splash blocks or into other devices, provided that no excess water will flow onto adjoining property or over sidewalks or walkways. The storm drain outlet, carrying roof water or yard drainage, shall be not less than six inches in diameter and shall not connect to the footing drain, but may intercept and receive the outlet of the footing drain by a wye connection above the spring line. The connection to a sanitary sewer of any pipe carrying roof water or yard drainage is prohibited. See Section 1381.20.
(Ord. 1992-101. Passed 1-14-92.)