(A) After the preliminary plat is approved, improvement plans prepared by a registered professional engineer licensed in the state for the subdivision of all or any part of the tract shall be submitted to the County Engineer for review.
(B) Improvement plans shall be prepared on an exhibit not to exceed 48 inches by 48 inches and shall contain the following information:
(1) Title page, which shall include key map showing the relationship of the area to be subdivided to the preliminary plat and which shall reflect areas of the preliminary plant previously subdivided plus adjacent streets;
(2) North arrow and scale;
(3) Title block showing name and address of developer and engineering firm, as well as the registered engineer’s seal;
(4) One or more bench marks, in or near the subdivision, to which the subdivision is referenced. The elevation shall be based on the sea level datum;
(5) List of the standards and specifications followed, citing volume, section, page or other references;
(6) An estimate by the engineer preparing the improvement plans of the cost of the improvement;
(7) Existing and proposed survey monuments shall be shown on street plans and on the proposed final plat as required in § 156.111;
(8) Grading plans showing finished grades;
(9) Soil information and a soils map, when required;
(10) Soil investigation data and locations of test holes, when required;
(11) Plans and profiles shall be drawn at a scale not less than one inch equals 100 feet horizontal; and one inch equals ten feet vertical. All dimensions shall be to the nearest one and one- hundredths of a foot and angles to the nearest minute;
(12) Plans, profiles and cross-sections of streets showing right-of-way and surface widths, elevations, paving details, grades, names, curb and gutter, catch basins, sidewalks and any other improvements to be constructed or placed within the street right-of-way;
(13) Plan of any water supply system, serving more than one property, showing locations, pipe sizes, pump stations (size, capacity and type), hydrant and valve location. If a private water supply system, serving more than one property, is proposed; then all information required either by the State Environmental Protection Agency for supplies with ten or more connections or by the County Health Department for supplies with less than ten connections, shall be submitted with the improvement plans;
(14) Plan of any sewage disposal system serving more than one property, showing pipe locations, sizes, force mains, invert elevations, slope, manhole locations, lift stations (size, capacity and type) and points of discharge. If area is subject to flooding or inundation, any additional provisions shall be shown (i.e., anchoring, special pipe, groundwater information and the like). If a private treatment system is proposed that serves more than one property, then all information required by the State Environmental Protection Agency shall be submitted with the improvement plans (i.e., treatment proposed, size, type, capacity, locations, outfall points and the like); and
(15) Plan of drainage systems including watershed outlines with drainage computations, retention basins showing drainage areas, locations of storm sewers, corrugated metal pipe type culverts (sizes and type), drainage channels, swales, indicating slopes, pipe sizes, invert elevations, underground drains, outlet locations and velocity reduction techniques.
(Ord. passed 10-14-2003; Ord. passed 11-10-2003; Ord. passed 11-14-2004; Ord. passed 9-11-2007)