A. Average Cross Slope. A method of determining the cross slope of a parcel or project site, by using the following equation:
Where:
I | = | Contour interval (maximum 10') in feet; |
L | = | Combined length in feet of all contour lines measured on the parcel or project site; |
0.0023 | = | Conversion of square feet into acres × 100; |
A | = | Project site or parcel area in acres. |
B. 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.
C. The average cross slope of a parcel or project site proposed for residential purposes only may be reduced by establishing a natural area on the parcel or project site and revising the average cross slope calculation to delete the natural area from the equation.
D. 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 project site area (A). The total acreage of the project site 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.
E. The average cross slope is used for determining slope density requirements for residential development only.
(Ord. 2000-52 § 1 (part), 2000)