HomeMy WebLinkAbout12500 Stockdale Hwy - Drainage Study RevisionEagle Oaks Specialty Care Center (ON-SITE ONLY)
BASIN SIZING CALCULATIONS
Required Sump Capacity based on Approved H/H Study*
* Required Sump Capacity =12.31 AC-FT
* Provided Sump Capacity = 12.53 AC-FT
* Drainage Area C1 (Undeveloped)
PROVIDED AREA (A) =31.21 acres
RUNOFF COEFFICIENT (C)= 0.9
Approved Provided Sump Capacity for Area C1 = 0.15 x C x A =4.21 AC-FT
*Per Approved Drainage Study for Tract 6250 & 6281
Required Sump Capacity for Eagle Oaks Specialty Care Center
TABLE OF RUNOFF COEFFICIENTS On-Site Stockdale Hwy C x A =
AREAS A-P AREA 10
R-1, 6000 SF 0.42
R-1, 6750 SF 0.4
R-1, 7500 SF 0.38
R-1, 10000 SF 0.34
R-1, 15000 SF 0.27
R-2 0.55
R-3, R-4, M-H 0.8
Commercial 0.9 8.62 7.76
Industrial 0.8
Parks 0.15
Grasslands, Type A Soil 0.15
Grasslands, Type B Soil 0.25
Grasslands, Type C Soil 0.35
Grasslands, Type D Soil 0.45
Pavement, drives & roofs 0.95 0.97 0.96 1.83
Backyards 0.05
Lawn-landscape 2% slope 0.17
Lawn-landscape 2-7% slope 0.22
Lawn-landscape 7% slope 0.35
n C x A =9.59
On-Site Stockdale Hwy Total
9.59 0.96 =Acres 10.55
Required Sump Capacity = 0.15 x C x A =0.15 X n C x A =1.44 AC-FT
Remaining Sump Capacity = Undeveloped Commercial Area (Area C1) - Eagle Oaks Specialty Care Center
Remaining Sump Capacity = 2.77 AC-FT
STOCKDALE HIGHWAY
AL
L
E
N
R
O
A
D
EXISTING GAS STATION
VACANT LOT
STOCKDALE HIGHWAY
J E W E T T A A V E N U E
Know what's
R
TRACT 6281
TRACT 6250
NOTE:
INSTALL OUTLET STRUCTURE
PER C.O.B. STD. DTL. D-11