All necessary facilities, including underground pipe, inlets or catch basins, as determined by the Village and/or County Engineer, shall be installed to provide for the adequate disposal of subsurface and surface water and maintenance of natural drainage courses. All storm drainage facilities within the subdivision shall connect to an adequate drainage outlet. A drainage plan shall be submitted simultaneously with the plat of any subdivision, showing the proposed scheme of surface drainage and when approval has been given, the drainage system shall be constructed in conformance with the approved plan. Construction shall be subject to inspection and approval by the Village or County Engineer. All new developments shall be required to install a perimeter drainage tile along the rear of all lots.
Approval of the drainage system does not constitute acceptance by the Village or County of that system for maintenance purposes. These systems may become public watercourses under Ohio R.C. Chapter 6131.
(a) Storm Sewers and Storm Water Drainage. A drainage system adequate to serve the needs of the entire subdivision will be required in the new subdivisions. 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 systems are not accessible, adequate storm water drainage shall be provided by drainage channels with easements of adequate width and/or a combination of on-site retention and drainage conveyances as determined by the Village and County Engineer.
(b) Culverts and Bridges. When drainage channels intersect any street right of way, it shall be the responsibility of the subdivider to have satisfactory bridges and culverts designed and constructed. Where culverts are required, the following minimum requirements shall be observed.
(1) All culverts shall extend across the entire right-of-way width of the proposed road. The minimum diameter of a culvert pipe shall be eighteen inches. Head walls depending on existing drainage conditions may be required.
(2) Driveway culverts shall have a minimum length of twenty feet. The minimum diameter of driveway culverts shall be twelve inches. The driveway culverts shall be laid so as to maintain the flow line of the ditch or gutter. Head walls may be required.
(Ord. 22-93. Passed 11-15-93.)