Following the approval of the preliminary plan, if the developer wishes to proceed, three copies of final drainage, grading, and utility plans shall be submitted to the Planning Director for review and approval. Any or all of these plans may be deleted at the Planning Director’s discretion.
(A) Grading plan. The grading plan shall show existing and proposed contours with intervals acceptable to the County Engineer. The site grading plan shall show drainage arrows for each lot and lot corner elevations. The plan shall also show the right-of-way width for all proposed roads. Construction documents indicating road grades and alignment using the county and industry accepted standards shall be prepared.
(B) Drainage plan. When deemed necessary, the drainage plan shall show proposed drainageways and drainage facilities. The plan shall make a determination of approximate watershed boundaries and land use to be used in estimating run-off potentials. Drainage facilities shall be designed to handle the determined flow volumes. Pipe sizes, inlet sizes, and inlet locations based on industry accepted standards for accepted storm frequency and inundation levels shall be illustrated in the drainage plan. Detailed construction plans showing pipe size, slopes, inlet types, and size, including the profile of the storm sewer with rim and invert elevations, shall be prepared.
(C) Utility plan. The utility plan shall include utility systems for the development. All utility plans shall conform to industry accepted standards. Detailed construction drawings with stationing, plan, and profile section for all water and sanitary sewer layouts shall be prepared.
(Ord. 1104-63, passed 4-26-2011)