(A) Improvement plans required. The owner or subdivider shall, at the time of his or her submission of the final plat to the Planning Commission, shall also include at least four copies of the improvement plans required by these regulations. As-built drawings shall be submitted prior to final acceptance of the improvements. Improvement plans shall include, but not be limited to, the following:
(1) Street;
(2) Sanitary sewer;
(3) Water;
(4) Drainage; and
(5) Erosion and sediment control.
(B) Specifications. Plans shall be drawn at a scale of not more than 50 feet to one inch on 24-inch by 36-inch sheets, and shall include, but not be limited to, the following:
(1) Plans and profiles showing the locations and typical cross-section of proposed street improvements, including curbs, gutters and sidewalks;
(2) The location, size, profile rim and invert elevations of proposed sanitary sewers;
(3) The location and size of proposed water mains, valves, fittings and fire hydrants;
(4) The location and design of drainage structures, easements or rights-of-way dedicated to the public including typical cross-sections of all channel improvements and a site grading plan. Improvement plans shall be accompanied by drainage report in accordance with the adopted standards and regulations for drainage improvements; and
(5) The location of all existing or proposed easements and rights-of-way and a typical cross-section of the proposed utility installations within those easements.
(C) Preparation of plans. Improvement plans shall be prepared by and bear the seal of an engineer registered in the state.
(D) Erosion and sediment control plans. Erosion and sediment control plans shall be submitted for the Planning Commission’s and City Council’s review showing compliance with 153.090 of this chapter and the following provisions before a final plat may be approved.
(1) The location of existing trees that are to be saved shall be shown.
(2) Development shall be accomplished so as to minimize adverse effects upon the natural or existing topography and soil conditions and to minimize the potential for erosion. No site shall be graded except in accordance with approved plans to meet foundation, parking and the drainage requirements of these regulations.
(3) Plans for development and construction shall minimize cut and fill operations.
(4) Fills shall not encroach upon natural watercourses, their floodplains or constructed channels in a manner so as to adversely affect other properties.
(5) Alteration of land in existing developed areas shall be conducted in such a manner that changes in patterns of natural drainage shall not adversely affect other landowners.
(6) No construction materials, construction by-products or other refuse shall be discarded in any drainageway or stream or anywhere else on the property. All refuse shall be disposed of in an approved landfill.
(7) (a) Land shall be developed in increments of workable size which can be completed during a single construction season. Erosion and sediment control shall be coordinated with the sequence of grading, development and construction operations.
(b) Control measures such as construction entrances, silt fences, berms, interceptor ditches, terraces and sediment traps shall be put into effect prior to the commencement of each increment of the development/construction process.
(8) Sediment basins (debris basins or silt traps) shall be installed in conjunction with the initial grading operations and maintained through the development process to remove sediment from runoff waters draining from land undergoing development.
(2002 Code, § 153.039) (Ord. 230, passed 9-8-1986; Ord. 651, passed 10-26-2009)