A. Average cross slope of a lot or parcel will be determined by using the following equation:
IxLx0.0023
A
A
B. For purposes of the equation set forth in paragraph A above, the following values are assigned:
1. I = Contour interval (maximum 10') in feet
2. L = Combined length in feet of all contour lines measured on the lot or parcel
3. 0.0023 = Conversion of square feet into acres x 100
4. A = Lot or parcel area in acres
C. The average cross slope shall be rounded off to the nearest whole number. When .5 or higher is computed, the number shall be rounded off to the next highest whole number.
D. The average cross slope of a lot or parcel proposed for residential purposes only may be reduced by establishing a natural area on the lot or parcel and revising the average cross slope calculation to delete the natural area from the equation.
E. Natural areas set aside in any division of land shall not be included in the average cross slope calculation, neither in the combined length of contour (L) nor in the lot or parcel area (A). The total acreage of the lot or parcel may be used to calculate the number of dwelling units based on allowable density, provided that all other applicable provisions of this section are met.
F. The average cross slope is used for determining slope density requirements for residential development only.
Ordinance 2022.006 added Section 17-14-5