HomeMy WebLinkAboutCHERRY STREET COTTAGES - PDP - PDP160041 - SUBMITTAL DOCUMENTS - ROUND 2 - STORMWATER-RELATED DOCUMENTS (25)17-06-02_100 yr Q peak_UD Rational_Revised.xls, Weighted C 6/6/17, 8:35 AM
Project Title:
Catchment ID:
Illustration
Instructions: For each catchment subarea, enter values for A and C.
Subarea Area Runoff Product
ID acres Coeff.
A C* CA
input input input output
A 1.01 0.52 0.53
Sum: 1.01 Sum: 0.53
Area-Weighted Runoff Coefficient (sum CA/sum A) = 0.52
*See sheet "Design Info" for inperviousness-based runoff coefficient values.
Area-Weighting for Runoff Coefficient Calculation
Gilmartin Cherry Street: Pierce Subdivision
A: On-Site