SW6230602_Design Calculations_20230831

4D Site Solutions, Inc.
DITCH CALCULATIONS
NOTE:sheet only set up to handle Tc from 5 min to 30 min
A. Flow velocity<2.0 fps when discharging to wetlands
1649 B&B Loop
Rainfall Intensity
Storm Event
5-min 10-min 15-min 30-min
10-yr 7.88 6.31 5.32 3.85
25-yr 8.86 7.06 5.96 4.42
50-yr 9.52 7.58 6.40 4.82
100-yr 10.20 8.07 6.80 5.21
Tc
Drainage Impervious Grassed Storm Rainfall
Ditch No. C Kirpich Intensity Q(cfs)
Area(ac) Area(ac) Area(ac) Event(yr)
Total Tc Tc Used (in/hr)
L(ft) S Tch
1 1.23 0.38 0.85 0.50 688.0 0.046 3.91 3.91 5 10-yr 7.88 4.83
2 1.44 0.44 0.99 0.50 578.0 0.048 3.35 3.35 5 10-yr 7.88 5.66
3 1.58 0.85 0.73 0.65 1175.0 0.026 7.35 7.35 5 10-yr 7.88 8.09
4 5.89 1.80 4.09 0.45 1564.0 0.020 10.13 10.13 10 10-yr 6.31 16.72
5 0.13 0.07 0.06 0.65 180.0 0.006 3.13 3.13 5 10-yr 7.88 0.65
6 1.69 0.52 1.17 0.50 622.0 0.032 4.16 4.16 5 10-yr 7.88 6.66
7 0.46 0.21 0.25 0.60 543.0 0.011 5.65 5.65 5 10-yr 7.88 2.18
8 0.36 0.19 0.16 0.65 507.0 0.012 5.18 5.18 5 10-yr 7.88 1.83
9 13.29 2.04 11.25 0.40 1175.0 0.029 7.05 7.05 5 10-yr 7.88 41.89
printed:7/5/2023 12:11 PM Page 1 of 1

STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHASE STORM DRAINAGE/HYDRAULIC GRADE LIIDATE DESIGN PHASE STORM DRAINAGE/HYDRAULIC GRADE LINE DATE DESIGN PHAS
ANALYSIS(1 09-08-22 PRELIM / / ANALYSIS(10 YEAR) 09-08-22 PRELIM / / ANALYSIS(10 YEAR) 09-08-22 PRELIM /
PROJECT NAME PROJECT NO CONSTR /X/ PROJECT NAME PROJECT NO CONSTR /X/ PROJECT NAME PROJECT NO CONSTR X/
B&B Loop Roadway 1649 REVISION/ / B&B Loop Roadway 1649 REVISION/ / B&B Loop Roadway 1649 REVISION /
LOCATION BY RECORD / / LOCATION BY RECORD / / LOCATION BY RECORD /
Hoke County,North Carolina CJP OTHER / // Hoke County,North Carolina CJP OTHER / / Hoke County,North Carolina CJP OTHER /
CHECKED BY (SPECIFY) CHECKED BY (SPECIFY) CHECKED BY (SPECIFY)
CSB CSB CSB
BEND LOS: MS DESIGN CRITERIA:
n= 0.013 STORM DRAINAGE SCHEDULE CONTINUED -B STORM DRAINAGE SCHEDULE-CONTINUED 90 DEG=0.7 30 DEG=0.28 HYDRAULIC GRADE LINE-CONTINUED 1.DESIGN FOR THE 10 YR STORM
g= 226 60 DEG=0.55 15 DEG=0.10 2.ASSUME TIME OF CONCENTRATION TO
h= 26 I AN INDIVIDUAL INLET=5 MIN.(Unless othenose noted)
INLET 0(+) Cl(-) CAPTURED Tc I Cc 0 0 UPSTREAM CI COVER INLET W.S.ELEV. 3.INTENSITY=g/(h+T),FOR 10 YR STORM
INLET Cc INLET PSTREA INLET INLET TOTAL INLET PIPE TIME RUNOFF SIDE- CAPACITY SEGMENT UPPER LOWER TOP BOX COVER 1 BELOW ,IDESTREA BEND OUTLET OUTLET INLET USE 1 FLOW FREE- HGL (g and h were derived from Raleigh-Durham Intensity-
FROMTO AREAS AREA RUNOFF)ISCHARG BYPASS BYPASS)ISCHARGI AREAS TIME TIME OF CONC.INTENSITY COEFF. )ISCHARGE STREAM SLOPE DIA. (FULL) V FULL LENGTH TIME INV. INV. ELEV. DEPTH SUBGRADE;UMMATIOI LOSS W.S.ELEV CONTOL CONTROL CONDITION BOARD TO CROWN COMMENTS CAPACITY VS Duration-Frequency Charts,REF:NC Erosion and
(INLETS) (AC) COEFF. (CFS) (CFS (CFS) (CFS) (AC) (MIN) (MIN) (MIN) (IN/HR) __EFL___ (CFS) (IN) (CFS) (FPS) (FT) (MIN) (FT) (FT) (FT) (8") (CFS) K (FT) (FT) (FT) (FT) CONTROL (FT) DISCHARGE Sediment Control Planning and Design Manual)
4.MANNINGS"n"FACTOR=0.013
P01 P02 P01 0.46 0.65 1.20 0.00 0.00 1.20 0.46 5.00 0.00 5.00 7.29 0.65 2.18 0.00 0.0049 18 7.3 4.1 41 0.16 168.10 167.90 170.50 0.00 MTIEM
P03 PO4 P03 11.50 0.37 17.02 0.00 0.00 17.02 11.50 5.00 0.00 5.00 7.29 0.37 31.02 0.00 0.0077 36 58.5 8.3 52 0.10 167.60 167.20 172.80 ®' flfl 0.00 0.00 fKflfl®flfl =la=�
1619 Smmn.xiex 10,EAa Dam.7/2512023 lime:6:56 AM Page 1 of 1

OUTLET PROTECTION DATE DESIGN PHASE
DESIGN 09-08-22 PRELIM / /
PROJECT NAME PROJECT NO CONSTR / X /
B&B Loop Roadway 1649 REVISION / /
LOCATION BY RECORD / /
Hoke County, North Carolina CJP OTHER / /
CHECKED BY (SPECIFY)
CSB
Storm Outlet Structure
FES No.= TSB 1 OUTLET Q1o/Qfull = 1.00
Pipe Dia= 4 in V/Vfull = 1.14
Q10= 0.14 cfs V= 3.8 fps
Qfull = 0.14 cfs
Vfull = 3.35 fps
From Fig. 8.06.b.1: Zone = 1
From Fig. 8.06.b.2: D5o = 4 in
DMAX = 6 in
!.Ii:i;PStItIi;
Riprap Class = A
Apron Thickness = 9 in
. Apron Length 1.3 ft
• Apron Width @ Outlet = 1 ft
•
Apron Width @ End = 1.7 ft
Length
Storm Outlet Structure
FES No.= PO 4 Q1o/Qfull = 0.53
Pipe Dia= 36 in V/Vfull = 1.01
Q10= 31.02 cfs V= 8.4 fps
Qfull = 58.50 cfs
Vfull = 8.26 fps
From Fig. 8.06.b.1: Zone = 2
From Fig. 8.06.b.2: D50 = 8 in
DMAX = 12 in
Riprap Class = B
s Apron Thickness = 18 in
3 Apron Length 18.0 ft
Apron Width @ Outlet = 9 ft
Apron Width @ End = 21.0 ft
Length
1649 Storm.xlsx LATEST REVISION:7/25/2023 6:59 AM PAGE 1 OF 2

OUTLET PROTECTION DATE DESIGN PHASE
DESIGN 09-08-22 PRELIM / /
PROJECT NAME PROJECT NO CONSTR / X /
B&B Loop Roadway 1649 REVISION / /
LOCATION BY RECORD / /
Hoke County, North Carolina CJP OTHER / /
CHECKED BY (SPECIFY)
CSB
Storm Outlet Structure
FES No.= PO 2 Q1o/Qfull = 0.30
Pipe Dia= 18 in V/Vfull = 0.87
Q10= 2.18 cfs V= 3.6 fps
Qfull = 7.30 cfs
Vfull = 4.10 fps
From Fig. 8.06.b.1: Zone = 1
From Fig. 8.06.b.2: D50 = 4 in
DMAX = 6 in
gorgorgorgq Riprap Class = A
L Apron Thickness = 9 in
Apron Length = 6.0 ft
Apron Width @ Outlet = 4.5 ft
Apron Width @ End = 7.5 ft
Length
1649 Storm.xlsx LATEST REVISION:7/25/2023 6:59 AM PAGE 2 OF 2

DITCH#1
III North American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
ENGLISH. (USER I 4/18/2023 1C1 AM I
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal SC250(n=0.040)
(cfs) Period(hrs) _ Radius(ft) . Depth(ft)
14.8 0.1 3.80 1.26 0.33 0.62 '
S=0.0460 4
4
1 L Bottom _1 1 '
3.0 Width=0.50 ft 2.0
1
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern ' Phase Class Type Density Shear Stress Shear Stress .
(psf) (psi)
Straight SC250 Vegetation 2 C Bunch 75-95% 8.00 1.77 4.51 STABLE
Staple E Soil Sandy Loam 2.500 0.789 3.17 STABLE
DITCH#2
II North American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
!ENGLISH. IUSER I 4/18/2023 06:33AM1
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal SC250(n=0.040)
(cfs) .Period(hrs) Radius(ft) Depth(ft)
0.7 0.1 4.03 1.41 0.35 0.66
S=0.0480
•
1 L Bottom J 1
3.0 Width=0.50 ft 2.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psf) (psf)
Straight SC250 ' Vegetation . 2 . C .Bunch.75-95% 8.00 1.97 4.06 STABLE ' - '
Staple E Soil Sandy Loam 2.500 0.841 2.97 STABLE ,

DITCH #3
ENorth American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
IENGLISH. IUSER I 4/18/2023 07:284M1
1i :n 4,1 I i ,'K ,4,1 i'' v. .4,1 f'r :w -4,% l; ew ,4,1 4, e .d.f 4. :w -4,N 4 S w 4.% 4; ` .<.f 4' ,i, 4,N 4'' n ♦.% l' 'K' ,<,% i.'''w. .4,N 4r' :i:,'
HYDRAULIC RESULTS - "#
Discharge 'Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal Unreinforced Vegetation(n=0.040) a
[cis) Period(hrs) _ Radius(ft) _ Depth(ft)
13.1 0.1 3.38 2.40 0.42 0.81 I ,_.
S=0.0260 4'
•
1 L Bottom _I 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
i Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psf) (psf) •
Straight . Unreinforced Vegetation C Bunch 50-75% 4.20 1.32 3.18 STABLE
Soil Sandy Loam 0.035 0.121 0.29 UNSTABLE
II North American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
'ENGLISH. (USER I 9/14/2022 06:47AM I
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal S75(n=0.047)
(cfs) Period(hrs) _ Radius(ft) _ Depth(ft)
18.1 0.1 3.01 2.69 0.45 0.87
S=0.0260
1 L Bottom J 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safely Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psi) (psf)
-
Straight S75 Unvegetated 1.55 1.41 1.10 STABLE
Staple D

DITCH #4
1 II North American Green ECMDS Version 43-Channel Protection Design,Output Form — 0 X
File Specifications Options Help
IENGLISH. FUSER I Ii/m- o23 lit..tvii
HYDRAULIC RESULTS 4.,a
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal Unreinforced Vegetation(n=0.040) a
(cis) Period(hrs) _ Radius(ft) _ Depth(ft)
16.7 0.2 3.67 4.55 0.58 1.15
S=0.0200 '
•
1 L Bottom J 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale •
•
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psf) (psf)
•
Straight Unreinforced Vegetation C Bunch 50.75e 4.20 1.44 2.93 STABLE
Soil Sandy Loam t 0.035 0.131 0.27 ( UNSTABLE
hl-
II North American Green ECMDS Version 4.3-Channel Protection Design,Output Form — 0 X
File Specifications Options Help
ENGLISH. (USER I 19/14322 06:48AMI
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal S75(n=0.040)
[cfs) Period[hrs) Radius(ft) Depth[ft)
[16.7 0.2 3.66 4.56 0.59 1.15
S=0.0200
1 L Bottom _I 1 •
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
[psf) (psf)
Straight S75 Unvegetated 1.55 1.44 1.08 STABLE
Staple D
N. 1

DITCH#5
II North American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
'ENGLISH. 'USER I 9/13/2022 02:53PM1
•
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal Unreinforced Vegetation(n=0.040) •
(cfs) Period(hrs) Radius(ft) . Depth(ft)
13.7 0.1 1.05 0.66 0.22 0.39
S=0.0060
1 L Bottom J 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psf) (psf)
Straight Unreinforced Vegetation C Bunch.50-75% 4.20 0.15 28.44 • STABLE
Soil Sandy Loam 0.035 0.013 2.60 STABLE .
0
DITCH#6
n North American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
FNGLISH. (USER I 4/18/2023 06:34AM1
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal SC250(n=0.040)
(cfs) Period(hrs) Radius(ft) Depth(ft)
16.7 0.1 3.48 1.92 0.38 0.72
S=0.0320
1 L Bottom _I 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics i
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(PA (PsfJ
Straight SC250 Vegetation 2 C Bunch 75.954. 8.00 1.44 5.55 STABLE
Staple E Soil Sandy Loam 2.500 0.574 4.35 STABLE

DITCH#7
North American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
IENGLISH. FUSER I Ii/m- o23 liul.tvii
HYDRAULIC RESULTS 4.,4
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal Unreinforced Vegetation(n=0.040) a
(cis) Period(hrs] Radius(ft) _ Depth(ft)
12.2 0.1 1.77 1.25 0.31 0.57 1 1
S=0.0110 '
•
•
1 L Bottom J 1
•
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale •
•
Matting Type Vegetation Characteristics •
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psf) (psf)
Straight Unreinforced Vegetation C Bunch 50.75e 4.20 0.39 10.80 STABLE
•
•
Soil Sandy Loam t 0.035 0.035 0.99 UNSTABLE
w
II North American Green ECMDS Version 4.3-Channel Protection Design,Output Form - 0 X
File Specifications Options Help
ENGLISH. ILISER I i9/ 122 02:58PMI
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal S75(n=0.052)
(cfs) Period(hrs) Radius(ft) . Depth(ft)
12.2 0.1 1.45 1.52 0.34 0.63
S=0.0110
•
1 L Bottom _1 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress .
(psf) (psf)
Straight S75 Unvegetated 1.55 • 0.43 • 3.57 STABLE
Staple D
- . 1

DITCH #8
1 111 North American Green ECMDS Version 43-Channel Protection Design,Output Form — 0 X
File Specifications Options Help
IENGLISH. FUSER I Ii/m— o23 07:33AM(
HYDRAULIC RESULTS 4.,a
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal Unreinforced Vegetation(n=0.040) a
(cis] Period(hrs) _ Radius(ft) _ Depth(ft)
11.8 0.1 1.73 1.04 0.28 0.51 1 1
S=0.0120 '
1 Bottom J 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale •
I Matting Type Vegetation Characteristics •
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psf) (psf)
Straight Unreinforced Vegetation C Bunch 50.75e 4.20 0.38 10.98 STABLE
Soil Sandy Loam t 0.035 0.035 1.00 STABLE
L.
r.North American Green ECMDS version 4. -Channel Protection Design,Output Form — 0 X
Specifications Options Help
ENGLISH. (USER I 9/13/2022 02:59PM1
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal S75(n=0.053)
(cis) _Period(his) Radius(ft) Depth(ftJ_
1.8 0.1 1.40 1.29 0.31 0.58
S=0.0120
1 L Bottom _ 1
3.0 Width=0.50 ft 3.0
LINER RESULTS Not to Scale
i Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psf) (psf)
Straight S75 Unvegetated 1.55 0.43 3.59 STABLE
Staple D

DITCH #9
n North American Green ECMDS Version 43-Channel Protection Design,Output Form — 0 X
File Specifications Options Help
�ENGLISH. FUSER I 4/18/2023 06:35AMI
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal SC250(n=0.040)
Ids) Period(hrs). _ _ Radius(ft) . Depth(ft)
141.9 • 0.1 5.47 7.66 0.80 1.40
S=0.0290
1 L Bottom JI1 -
2.0 Width=2.00 ft 3.0
LINER RESULTS Not to Scale
•
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress .
(psf) (psf)
Straight SC250 Vegetation 2 C Bunch 75-95 a 8.00 2.53 3.17 •- STABLE
Staple E Soil Sandy Loam 2.500 0.406 6.16 STABLE •4�6',

r \
III North American Green ECMDS Version 43-Channel Protection Design,Output Form — 0 X
File Specifications Options Help
IIENGLISH. 'USER I 7l24/2023 11:14 AM I
HYDRAULIC RESULTS
Discharge Peak Flow Velocity(fps) Area(sq.ft) Hydraulic Normal SC250(n=0.040)
(cfs) .Period(hrs), Radius(ft) Depth(ft)
141.9 0.1 2.59 16.16 1.10 2.01
\ S=0.0043/
\:
1 I Bottom 11
3.0 Width=2.00 ft 3.0
LINER RESULTS Not to Scale
Matting Type Vegetation Characteristics
Reach Stability Analysis Permissible Calculated Safety Factor Remarks
Staple Pattern Phase Class Type Density Shear Stress Shear Stress
(psi) (psi)
Straight SC250 Vegetation 3 B Bunch 75-95% 10.00 0.54 18.53 STABLE
Staple E Soil Sandy Loam 0.800 0.020 39.20 STABLE

4D Site Solutions, Inc.
PIPE CALCULATIONS
NOTE:sheet only set up to handle Tc from 5 min to 30 min
A. Cross-pipes to use 25-yr storm inensity
1649 B&B Loop
Rainfall Intensity
Storm Event 5-m'
IO-yr 7.88 6.31 5.32 3.85
25-yr 8.86 7.06 5.96 4.42
50-yr 9.52 7.58 6.4 4.82
100-yr 10.2 8.07 6.8 5.21
Tc
Drainage Storm Rainfall
Pipe No. C Kerby Kirpich Intensity Q(cfs)
Area(ac) Event(yr)
Total Tc Tc Used (in/hr)
L(ft) n s T,„; L(ft) S Tch
1 0.46 0.65 0.0 0.40 n/a 513.0 0.007 6.43 6.43 5 25-yr 8.86 2.65
2 11.50 0.37 0.40 na 984.0 0.030 6.11 6.11 5 25-yr 8.86 37.70
printed:7/5/2023 12:10 PM Page 1 of 1

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Wednesday,Sep 14 2022
PIPE 1
Invert Elev Dn (ft) = 167.90 Calculations
Pipe Length (ft) = 41.00 Qmin (cfs) = 2.65
Slope (%) = 0.49 Qmax (cfs) = 2.65
Invert Elev Up (ft) = 168.10 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 18.0
Shape = Circular Highlighted
Span (in) = 18.0 Qtotal (cfs) = 2.65
No. Barrels = 1 Qpipe (cfs) = 2.65
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 1.99
Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 3.87
Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 168.96
HGL Up (ft) = 168.72
Embankment Hw Elev (ft) = 168.97
Top Elevation (ft) = 172.80 Hw/D (ft) = 0.58
Top Width (ft) = 30.00 Flow Regime = Inlet Control
Crest Width (ft) = 100.00
Elev(ft) PIPE 1 H;;Depm ie)
173.00 I 4.90
172.00 3.90
171.00 2.90
170.00 1.90
169.00 Inlawnhm 0.90
168.00 -0.10
167.00 -1.10
166.00 1 -2.10
0 5 10 15 20 25 30 35 40 45 50 55 60 65
CircularCulvert HGL Embank
Reach(0)

Culvert Report
Hydraflow Express Extension for Autodesk®Civil 3D®by Autodesk, Inc. Monday,Sep 12 2022
PIPE 2
Invert Elev Dn (ft) = 167.20 Calculations
Pipe Length (ft) = 51.60 Qmin (cfs) = 37.70
Slope (%) = 0.78 Qmax (cfs) = 37.70
Invert Elev Up (ft) = 167.60 Tailwater Elev (ft) = (dc+D)/2
Rise (in) = 36.0
Shape = Circular Highlighted
Span (in) = 36.0 Qtotal (cfs) = 37.70
No. Barrels = 1 Qpipe (cfs) = 37.70
n-Value = 0.012 Qovertop (cfs) = 0.00
Culvert Type = Circular Concrete Veloc Dn (ft/s) = 5.99
Culvert Entrance = Square edge w/headwall (C) Veloc Up (ft/s) = 7.52
Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 HGL Dn (ft) = 169.70
HGL Up (ft) = 169.60
Embankment Hw Elev (ft) = 170.75
Top Elevation (ft) = 172.60 Hw/D (ft) = 1.05
Top Width (ft) = 20.00 Flow Regime = Inlet Control
Crest Width (ft) = 100.00
Elev(0) <Na111e> H,Depth lPt)
173.00 5.40
172.00 4.40
171.00 3.40
n co
170.00 2.40
169.00 1.40
168.00 0.40
1
167.00 -0.60
166.00 -1.60
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
Circular Culvert HGL Embank
Reach 00

OUTLET PROTECTION DATE DESIGN PHASE
DESIGN 09-08-22 PRELIM / /
PROJECT NAME PROJECT NO CONSTR / X /
B&B Loop Roadway 1649 REVISION / /
LOCATION BY RECORD / /
Hoke County, North Carolina CJP OTHER / /
CHECKED BY (SPECIFY)
CSB
Storm Outlet Structure
FES No.= TSB 1 OUTLET Q1o/Qfull = 1.00
Pipe Dia= 4 in V/Vfull = 1.14
Q10= 0.14 cfs V= 3.8 fps
Qfull = 0.14 cfs
Vfull = 3.35 fps
From Fig. 8.06.b.1: Zone = 1
From Fig. 8.06.b.2: D5o = 4 in
DMAX = 6 in
!.Ii:i;PStItIi;
Riprap Class = A
Apron Thickness = 9 in
. Apron Length 1.3 ft
• Apron Width @ Outlet = 1 ft
•
Apron Width @ End = 1.7 ft
Length
Storm Outlet Structure
FES No.= PO 4 Q1o/Qfull = 0.53
Pipe Dia= 36 in V/Vfull = 1.01
Q10= 31.02 cfs V= 8.4 fps
Qfull = 58.50 cfs
Vfull = 8.26 fps
From Fig. 8.06.b.1: Zone = 2
From Fig. 8.06.b.2: D50 = 8 in
DMAX = 12 in
Riprap Class = B
s Apron Thickness = 18 in
3 Apron Length 18.0 ft
Apron Width @ Outlet = 9 ft
Apron Width @ End = 21.0 ft
Length
1649 Storm.xlsx LATEST REVISION:7/5/2023 12:12 PM PAGE 1 OF 2

OUTLET PROTECTION DATE DESIGN PHASE
DESIGN 09-08-22 PRELIM / /
PROJECT NAME PROJECT NO CONSTR / X /
B&B Loop Roadway 1649 REVISION / /
LOCATION BY RECORD / /
Hoke County, North Carolina CJP OTHER / /
CHECKED BY (SPECIFY)
CSB
Storm Outlet Structure
FES No.= PO 2 Q1o/Qfull = 0.30
Pipe Dia= 18 in V/Vfull = 0.87
Q10= 2.18 cfs V= 3.6 fps
Qfull = 7.30 cfs
Vfull = 4.10 fps
From Fig. 8.06.b.1: Zone = 1
From Fig. 8.06.b.2: D50 = 4 in
DMAX = 6 in
gorgorgorgq Riprap Class = A
L Apron Thickness = 9 in
Apron Length = 6.0 ft
Apron Width @ Outlet = 4.5 ft
Apron Width @ End = 7.5 ft
Length
1649 Storm.xlsx LATEST REVISION:7/5/2023 12:12 PM PAGE 2 OF 2