Construction plans for improvements to be installed shall be furnished in accordance with the specifications of the officials having jurisdiction and shall receive approval of these officials before improvements are installed. Construction plans shall include the following:
(a) The centerline profile (and original ground profile) of each proposed street at a scale of twenty feet or less to the inch, with tentative grades indicated.
(b) The cross-section of each proposed street, showing the width of pavement, the location and width of sidewalks and the location and size of utility mains.
(c) The plans and profiles of proposed sanitary sewers, with grades and sizes indicated, or the method of sewage disposal in lieu of sewers.
(d) A plan and profile of the proposed water distribution system, showing pipe sizes and the location of valves and fire hydrants.
(e) A drainage plan showing all existing and proposed storm sewers, manholes, catch basins, watercourses, culverts and other underground structures within the tract and immediately adjacent thereto, with pipe sizes and grades and waterway openings indicated thereon. The drainage plan shall show the method to be used for the adequate disposal of all stormwater, including drainage outlets, and such other data as may be required by the Safety-Service Director.
The drainage plan shall be prepared and made a part of the construction drawings for the total development, showing the intended drainage from individual lots as well as the total development. The plan shall coordinate the needs for proper drainage and the aesthetics of the total development. Positive surface drainage shall be provided for the total development. This may be accomplished by grading and/or the installation of a pipe drainage system.
(f) A grading plan showing all existing and proposed contours, trees and vegetation to be removed and erosion control methods. The plan shall also indicate the location of all soil borings and be accompanied by a soil report, if required, and may be prepared by a competent soil engineer, stating existing conditions and recommendations for the construction of the required improvements and future structures.
When the topography is changed to a higher or lower level than the natural grade, suitable slopes (slopes which do not exceed a one-foot vertical rise in a three-foot horizontal run) or measures shall be provided to blend the changed contour in with the surroundings. The grading from the natural contour shall not impede the natural flow of storm drainage. Grading shall be done so that the amount of existing storm drainage (run-off) to the adjoining property is not increased or concentrated to spill off the property at new locations. Proper considerations shall be given to maintaining acceptable housekeeping or standards of cleanliness and neatness of the site during and after development. The site shall not be used as a waste area for construction debris. In case of on-site excess earthen materials, the wasting of such shall be in a manner which will be compatible with the general grading or drainage plans. The piling or dumping of such material without spreading or distributing such material shall not be permitted.
(Ord. 97-297. Passed 12-15-97.)