Part 2 — Unified Development Ordinance Subdivision Regulations
City of Andover Unified Development Manual

C. Existing Conditions. The following existing conditions must be shown on the preliminary plat: 1. Location, right-of-way, width and names of all existing public or private streets , and location and width of all private drive approaches within, adjacent to, or across the street from the tract. 2. Important elements such as easements, section lines and corners, railroad rights-of-way, city and township boundary lines, and survey monuments. 3. The horizontal location of existing utilities proposed to serve the subdivision, for the area in the subdivision and in adjoining streets and adjacent properties. a. Utilities include, but are not limited to: sanitary and stormwater sewers (show flow lines), water mains, culverts, catch basins, manholes, fire hydrants, underground and overhead wiring, pipelines, and gas lines. 4. Contour lines or spot elevations based on Mean Sea Level, or other methods approved by the Planning Commission, showing the following intervals: a. For ground slopes exceeding 10% — 5-foot contour intervals. b. For ground slopes less than 10% — 2-foot contour intervals. c. Where the ground is too flat for contours, show spot elevations. d. On zoning lots 10 acres or larger, used for residential or agricultural purposes, which are not subject to flooding and where there is no known watercourse: 10-foot contour intervals. (1) USGS map data is acceptable.
5. Topographic survey information, including: a. Date of the survey. b. Locations of existing survey monuments used in the survey. c. Location, elevation, and description of the BENCHMARK controlling the vertical survey. (1) If any portion of the area being platted lies within a designated 1% annual chance floodplain, benchmarks approved by the Federal Emergency Management Agency (FEMA) must be used, and the datum used must be the same as in the currently adopted Flood Insurance Rate Map. (See definition of FLOODPLAIN, and Andover's current Floodplain Management Regulations).) d. The location of floodplains as shown on the City's currently adopted FEMA Flood Insurance Rate Map. (See FEMA Flood Map Service Center website.) e. The location and direction of all watercourses . 6. Significant natural features such as rock outcroppings, marshes, lakes, and wooded areas. 7. Location of all existing structures , showing those to be removed and those to remain on the property after the final plat is recorded.
Main TOC Subdivision TOC Sketch Plan & Preliminary Plat

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