(a) Installation. The subdivider shall install required storm drainage improvements in accordance with the plans and profiles prepared by his or her registered professional engineer, to be reviewed and approved by the Director of Public Service as meeting the minimum engineering design standards and material specifications and as in accordance with the storm drainage plan. Storm drainage improvements shall be carried out under Municipal supervision within the time fixed or agreed upon by the Director, and all inspection and review shall be paid for by the subdivider.
All necessary facilities, including underground pipe, inlets and catch or open drainage ditches, shall be installed to provide adequate disposal of subsurface and surface water and maintenance of natural drainage courses. All storm drainage facilities in the subdivision shall connect to an adequate drainage course.
(b) Drainage Easements or Rights-of-Way. An easement shall be provided on both sides of a storm drainage course for the purpose of widening, deepening or general maintenance. The minimum width of an easement carrying storm water shall be twenty feet. In the case of large drainage ways or ditches, the Director of Public Service or the Planning Board may require a drainage right-of-way if an easement is deemed inadequate and/or too much of the lot would be utilized for drainage purposes. In the three-mile jurisdictional area, the approving authority and Council may also require a drainage right-of-way, if considered necessary.
(c) Storm Sewers and Storm Water Drainage. A drainage system adequate to serve the needs of the proposed new streets and the entire subdivision is required in a new subdivision. Where an adequate public storm sewer main is available at the plat boundary, the subdivider shall construct a storm sewer system and connect with such storm sewer main. If such storm sewer system is not accessible, adequate storm water drainage shall be provided by natural drainage channels with easements of adequate width.
(d) Culverts and Bridges. Culverts and/or bridges are required where natural drainage channels intersect a street right-of-way. Culverts shall extend across the entire right-of- way width of the existing or proposed street. The minimum diameter of a culvert pipe is eighteen inches. Driveway culverts shall have a minimum length of twenty feet and a minimum diameter of twelve inches.
(Ord. 83-32. Passed 8-15-83.)