(A) Whenever storm runoff, other than limited sheet flow, moves across a traffic lane, a serious and dangerous impediment to traffic flow occurs. Cross-flow is allowed only in case of super elevation of a curve or overflow from the higher gutter on a street with cross-flow. When runoff is allowed to cross from one curb line to the opposing curb line, the depth of flow shall not exceed six inches of depth at any point within the street. This policy prohibits the use of concrete valley gutters at points other than intersections. At points of concentration other than intersections, cross-flows shall be contained within underground storm conduit. The crown of the street shall not be removed to allow cross-flow.
(B) In the event that underground storm drainage is not practical, cross-flow shall be allowed. The crown shall be removed and a concrete valley shall be required to convey the runoff across the street. Cross- flow shall not exceed six inches of depth within the concrete valley.
(Ord. 2007-18, passed 6-26-07)