20181182 Ver 1_Culvert Exhibit with Calculations_20180824

DATE:DWG SCALE:DRAWN BY:CHECKED BY:APPROVED BY:PROJECT NO:EXHIBIT:OVERALL SITE PLAN181-991.0011"=200'MRJ'1DUKE ENERGYBUMGARNER PROPERTYCULVERT REPLACEMENTHICKORY, NORTH CAROLINAwww.cecinc.com1900 Center Park Drive - Suite A - Charlotte, NC 28217Ph: 980.237.0373 · Fax: [phone]NORTHREFERENCENCBELS #: C-3035EPMSWWAUGUST 2018
DATE:DWG SCALE:DRAWN BY:CHECKED BY:APPROVED BY:PROJECT NO:EXHIBIT:SITE PLAN181-991.0011"=10'AUGUST 2018MRJSWWEPM2DUKE ENERGYBUMGARNER PROPERTY CULVERT REPLACEMENTHICKORY, NORTH CAROLINAwww.cecinc.com1900 Center Park Drive - Suite A - Charlotte, NC 28217Ph: 980.237.0373 · Fax: [phone]NORTHNCBELS #: C-3035REFERENCE
DATE:DWG SCALE:DRAWN BY:CHECKED BY:APPROVED BY:PROJECT NO:EXHIBIT:SECTION VIEWS181-991.0011"=5'AUGUST 2018MRJSWWEPM3DUKE ENERGYBUMGARNER PROPERTY CULVERT REPLACEMENTHICKORY, NORTH CAROLINAwww.cecinc.com1900 Center Park Drive - Suite A - Charlotte, NC 28217Ph: 980.237.0373 · Fax: [phone]NCBELS #: C-3035NOTES

Prepared For:

Prepared By:

CIVIL & ENVIRONMENTAL CONSULTANTS, INC.
CHARLOTTE, NORTH CAROLINA

CEC Project 181-991

AUGUST 2018

NORTH CAROLINA
BOARD OF EXAMINERS
FOR ENGINEERS AND
SURVERYORS LICENSE
NO. C3035

NORTH CAROLINA BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS
LICENSE NO. C-3035

BUMGARNER CULVERT REPORT
DUKE ENERGY
BUMGARNER PROPERTY
HICKORY, NORTH CAROLINA
Hydrology Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Tuesday, Aug 14 2018
10 Year - 24hr Storm Event
Hydrograph type = SCS Peak discharge (cfs) = 733.12
Storm frequency (yrs) = 10 Time interval (min) = 1
Drainage area (ac) = 469.000 Curve number (CN) = 69
Basin Slope (%) = n/a Hydraulic length (ft) = n/a
Tc method = User Time of conc. (min) = 40
Total precip. (in) = 5.26 Storm Distribution = Type II
Storm duration (hrs) = 24 Shape factor = 484
Hydrograph Volume = 3,657,562 (cuft); 83.966 (acft)
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0
Q (cfs)
0.00 0.00
105.00 105.00
210.00 210.00
315.00 315.00
420.00 420.00
525.00 525.00
630.00 630.00
735.00 735.00
Q (cfs)
Time (hrs)
Runoff Hydrograph
10-yr frequency
Runoff Hyd - Qp = 733.12 (cfs)
Culvert Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc.Tuesday, Aug 14 2018
10 Year - 24hr Storm Event - Two (2) 84in. Diameter CMP Culvert
Invert Elev Dn (ft) = 91.88
Pipe Length (ft) = 40.00
Slope (%) = 1.00
Invert Elev Up (ft) = 92.28
Rise (in) = 84.0
Shape = Circular
Span (in) = 84.0
No. Barrels = 2
n-Value = 0.022
Culvert Type = Circular Pipe,
Beveled Ring Entrance
Culvert Entrance = 45D bevels
Coeff. K,M,c,Y,k = 0.0018, 2.5, 0.03, 0.74, 0.2
Embankment
Top Elevation (ft) = 101.28
Top Width (ft) = 32.00
Crest Width (ft) = 20.00
Calculations
Qmin (cfs) = 733.12
Qmax (cfs) = 733.12
Tailwater Elev (ft) = (dc+D)/2
Highlighted
Qtotal (cfs) = 733.12
Qpipe (cfs) = 733.12
Qovertop (cfs) = 0.00
Veloc Dn (ft/s) = 10.41
Veloc Up (ft/s) = 12.35
HGL Dn (ft) = 97.90
HGL Up (ft) = 97.32
Hw Elev (ft) = 100.15
Hw/D (ft) = 1.12
Flow Regime = Inlet Control