HomeMy WebLinkAboutSW6221007_Design Calculations_20230124SPOUT SPRINGS SELF STORAGE
_ FLIED
MIRACLE MOVERS WAREHOUSE
Storm Water and Erosion & Sedimentation Control Calculations
Owner:
Miracle Movers
11133 Willow Oak Road
Norwood, NC 28128
Spout Springs Self Storage & Miracle Movers Warehouse
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The certification shown below applies only to the items listed on this 'Table of Contents'
Table of Contents
Drainage Area Map
1 Page
Runoff Coefficient
1 Page
Kirpich Equation
1 Page
NOAA Rainfall Intensity
1 Page
Mannings n
3 Pages
Temporary/Permanent Diversion Swales
2 Pages
Temporary Sediment Basin
1 Page
Rip Rap Outlet Aprons
6 Pages
Storm Pipe Capacity
1 Page
NOAA Rainfall Depth
1 Page
Pond Stage -Storage Function
2 Pages
TR55 Curve Numbers
1 Page
Kp Values for Pond Barrel
1 Page
Temporary Volume Drawdown
1 Page
Riser Anti -floatation Calculations
1 Page
Simple Method Volume (1 yr, 24 hr)
1 Page
Pond Routing (10, 25, 50, & 100 yr Storm)
12 Pages
Asphalt Inverted Swales
1 Page
Drop Inlet Capacity
1 Page
Curb Inlet Capacity
1 Page
Stage Storage for Area Below Permanent Pool
2 Pages
Surface Area and Depth Required for Main Pool
1 Page
H I L L I A R D -��---�--
ENGINEERING
Author: Jarrod E. Hilliard, PE, CFM
PO Box 249 Sanford, NC 27331
(919) 352-2834
NC License No. P-0836
Date: 1/24/23
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SPOUT SPRINGS SELF STORAGE & MIRACLE MOVERS WAREHOUSE
SURFACE AREA AND DEPT REQUIRED FOR MAIN POOL
TABLE 1 PIEDMONT AND MOUNTAIN SA/DA TABLE
INTERPOLATION
Known Lower Percent Impervious:
70
Known Upper Percent Impervious:
80
Known Lower SA/DA:
2.51
Known Upper SA/DA:
2.92
Computed Impervious:
73.00
Unknown Target SA/DA:
Min. Surface Area Required for Main Pool Area:
SA/DA: 2.63
Drainage Area to SCM: 567,587 sf
Min. Surface Area Req'd: 14,945 sf
Surface Area Provided: 28,921 sf
Main Pool Volume: 99,734 cf
Main Pool Surface Area: 28,921 sf
Main Pool Ave. Depth: 3.45