(A) Map No. 1: Soils.
(1) In many areas, detailed soil mapping has been completed by the county’s Soil and Water Conservation District and is available to interested landowners.
(2) In those areas where mapping has not been completed, the information may be obtained at no cost to the subdivider through the county’s Soil and Water Conservation District by means of a conservation agreement.
(B) Map No. 2: Slope.
(1) Slope information can readily be obtained from a U.S.G.S. Topographic Map at five-foot level and from information contained in the above soil surveys.
(2) Slope data should be expressed in terms of the following classification:
Class | % Slope |
Class | % Slope |
A | 0-.29 |
B | 0.3-.99 |
C | 1.0-3.9 |
D | 4.0-9.9 |
E | 10.0-14.9 |
F | 15.0-24.9 |
G | 25.0-49.9 |
H | 50+ |
(C) Map No. 3: Vegetation.
(1) Information on significant vegetative cover can readily be obtained on recent aerial photographs of the site from actual site inspection.
(2) Photos are available in the county’s Regional Plan Commission office.
(D) Map No. 4: Flood Level. Floodplain and flood level information can readily be obtained from the state’s Water Survey, Department of Registration and Education. Flood information should be shown for the ten-year flood recurrence and either the 100-year flood recurrence or the maximum flood of record.
(2007 Code, Ch. 34, Table V-1)