All storm water management facilities shall be designed and constructed in accordance with the standards and specifications of the City Engineer.
(a) Construction of storm water management facilities shall be in accordance with approved plans and accompanying specifications. The design and construction details shall be determined by using the U.S. Department of Agriculture, Soil Conservation Service Publication, "Water Management and Sediment Control for Urbanizing Areas", latest edition, and/or other methods approved by the City Engineer.
(b) Natural drainageways shall be utilized to the maximum extent possible.
(c) Storm water conduits shall be of a size large enough to adequately handle runoff from upstream sources.
(d) All storm water storage structures and facilities shall be equipped with emergency spillways.
(e) Energy dissipators shall be placed at the outlets of all water carrying structures where flow velocities exceed the maximum permitted velocities.
(f) Vertical structures, inlets and other surface water receiving structures shall be equipped with trash racks.
(g) Where a drainage way or ditch intersects a driveway or other access road, an adequately sized culvert, bridge or grassed waterway shall be provided.
(h) Roof drains, footing drains, and sump pump drains or other type of mechanical drains shall be controlled onsite and shall be prohibited from discharging directly onto City right-of-way, sidewalk or roadway. Sump pump drains or other type of mechanical drains may be connected to any public street drainage ditch or storm sewer.
(i) When the elevation of any entrance to a structure, including windows existing or to be constructed on a site is lower than the elevation of the street pavement serving that site, the Storm Water Management Plan shall show a method to minimize the risk of flooding from drainage moving from the street.
(Ord. 2022-38. Passed 5-31-22.)