The following summary of changes to the drainage areas were used in the hydrology model:
Drainage Area 1 Existing Condition
Option No. 4
Option No.6
Acres
Acres
% Change
Acres
% Change
Total Area
58.32
58.82
+0.86%
70.74
+21.30%
Impervious Area
7.72
9.81
+27.07%
11.00
+42.49%
Curve No.
77
78
+1.30%
78
+2.60%
Drainage Area 2 Existing Condition
Option No. 4
Acres
Acres
% Change
Acres
% Change
Total Area
78.73
145.90
+85.32%
90.90
+15.46%
Impervious Area
42.25
55.4
+31.13%
45.7
+8.17%
Curve No.
89
86
-6.74
89
0.0%
90
Option No.6