20200112 Ver 1_R-5740_HYD_SMPv2.07_20191112_20200122

E Ej North Carolina Department of Transportation
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN �'--
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: TIP No.: R-5740 County(ies): Perquimans Page f of 8
General Project Information
WBS Element:
ITIP Number: R-5740 Project Type: Roadwa Widenin Date: 11/12/2019
NCDOT Contact:
Paul Atkinson, PE
Contractor / Desi ner:
Atkins
Address:
NCDOT H draulics Unit
Address:
1616 E Millbrook Road, Suite 160
Raleigh, NC 27609
1020 Bridge Ridge Drive
Raleigh, NC 27610
Phone:
919-707-6707
Phone:
919-876-6888
Email:
atkinson ncdot. ov
Email:
dean. goodison
atkins lobal.com
City/Town:
Hertford
Count Ees :
Per uimans
River Basin(s):
Pas uotank
ICAMA County?
I Yes
Wetlands within Project Limits?
Yes
Project Description
Project Length (lin. miles or feet):
4.391 miles Surrounding Land Use: JRural, Agricultural
AME Proposed Project
Existing Site
Project Built -Upon Area ac.
11.7 ac.
9.6 ac.
Typical Cross Section Description:
2-lanes at 1 V each with 4'-0" grassed shoulder and 3:1 side slopes.
2- lanes Y each with +/-2'-0" grassed shoulder.
Annual Avg Daily Traffic (veh/hr/day):
Design/Future: 1400 Year: 2016
Existing: 1400 Year: 2016
General Project Narrative:
(Description of Minimization of Water
Quality Impacts)
This project involves the grading, widening and paving of SR 1329 (Woodville Road). Various culverts and driveway pipes will be replaced throughout the project area. The
majority of roadway runoff is conveyed in ditches which have been updated to conform to NCDOT specifications. Project outfalls, especially those into wetland and jurisdictional
areas, were verified not to have erosive velocities. If outfall velocity was an issue, the appropriate lining, or outfall protection was employed. There will be a slight increase in the
impervious area of the project; however, there is no significant increase in the discharge from the roadway runoff.
Waterbody Information
Surface Water Body (1): Deep Creek
NCDWR Stream Index No.:
30-5-4
NCDWR Surface Water Classification for Water Body
Primary Classification:
Class SC
Supplemental Classification:
None
Other Stream Classification:
None
Impairments:
None
Aquatic T&E Species?
No Comments:
NRTR Stream ID:
Buffer Rules in Effect: N/A
Project Includes Bridge Spanning Water Body?
INo
I Deck Drains Discharge Over Buffer? N/A
Dissipator Pads Provided in Buffer? I N/A
Deck Drains Discharge Over Water Body?
INo
(If yes, provide justification in the General Project Narrative)
(If yes, describe in the General Project Narrative; if no, justify in the
General Project Narrative)
(If yes, provide justification in the General Project Narrative) I

1 3i1 n� n
ti tt f n i v % ,111 .1,
(Version 2.07; Released October 2016)
North Carolina Department of Transportation
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
FOR NCDOT PROJECTS
�'^--"'
WBS Element: TIP No.:
R-5740
County(ies): Perquimans
Page 2
of 8
Additional Waterbody Information
Surface Water Body (2):
Mills Creek
NCDWR Stream Index No.:
30-5-4-1
NCDWR Surface Water Classification for Water Body
P imary Classification:
Class SC
Supplemental Classification:
None
Other Stream Classification:
None
Impairments:
None
Aquatic T&E Species?
No
Comments:
NRTR Stream ID:
Buffer Rules in Effect:
N/A
Project Includes Bridge Spanning Water Body?
INo
Deck Drains Discharge Over Buffer? I N/A
Dissipator Pads Provided in Buffer?
I N/A
Deck Drains Discharge Over Water Body?
I N/A
(If yes, provide justification in the General Project Narrative)
(If yes, describe in the General Project Narrative; if no,
General Project Narrative)
justify in the
(If yes, provide justification in the General Project Narrative)
Surface Water Body 3 :
Little River
NCDWR Stream Index No.:
30-5- 2
NCDWR Surface Water Classification for Water Body
P imary Classification:
Class SC
iSupplemental Classification:
None
Other Stream Classification:
None
Impairments:
None
Aquatic T&E Species?
No
Comments:
NRTR Stream ID:
Buffer Rules in Effect:
N/A
Project Includes Bridge Spanning Water Body?
No
Deck Drains Discharge Over Buffer? N/A
Dissipator Pads Provided in Buffer?
N/A
Deck Drains Discharge Over Water Body?
N/A
(If yes, provide justification in the General Project Narrative)
(If yes, describe in the General Project Narrative; if no,
General Project Narrative)
justify in the
(If yes, provide justification in the General Project Narrative)

Iig] 1\vi1v North Carolina Department of Transportation
Slurirnwater -.09k
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: TIP No.: R-5740 Count ies : Perquimans Page 3 of 8
Swales
Sheet
No.
Station & Coordinates
(Road and Non Road
Projects)
Surface
Water
Body
Base
Width
ft
Front
Slope
H:1
Back
Slope
H:1
Drainage
Area
ac
Recommended
Treatm't Length
ft
Actual
Length
ft
Longitudinal
Slope
%
Q2
cfs
V2
fps)
Q10
(cfs)
V10
(fps
Rock
Checks
Used
BMP
Associated w/
Buffer Rules?
4
-L- 10+25 RT
(1)Deep
Creek
0.0
3.0
4.0
0.6
61
125
0.50%
1.5
2.9
2.0
3.1
No
No
-L- 11+50 RT
4
-L- 11+50 RT
(1)Deep
Creek
0.0
3.0
4.0
0.6
61
50
0.76%
1.5
3.4
2.0
3.6
No
No
-L- 12+00 RT
4
-L- 11+05 LT
(1)Deep
Creek
0.0
3.0
2.0
0.3
26
155
0.19%
0.4
0.7
0.5
0.7
No
No
-L- 12+60 LT
4
-L- 12+60 LT
(1)Deep
Creek
0.0
3.0
2.0
0.6
61
140
0.45%
1.5
1.3
2.0
1.4
No
No
-L- 14+00 LT
4
-L- 14+00 LT
(1)Deep
Creek
0.0
3.0
2.0
2.1
207
458
0.45%
5.2
1.8
6.8
1.9
No
No
-L- 18+58 LT
4
-L- 12+60 RT
(1)Deep
Creek
0.0
3.0
2.0
0.3
34
596
0.40%
1.0
1.1
1.3
1.2
No
No
-L- 18+56 RT
4
-L- 18+59 LT
(1)Deep
Creek
0.0
3.0
2.0
0.3
26
161
1.23%
0.6
1.6
0.8
1.7
No
No
-L- 20+20 LT
4
-L- 18+57 RT
(1)Deep
Creek
0.0
3.0
2.0
0.1
8
126
3.33%
0.2
1.7
0.3
1.8
No
No
-L- 19+83 RT
4
-L- 20+20 LT
(1)Deep
Creek
0.0
3.0
2.0
0.9
94
330
1.03%
2.1
2.0
2.7
2.1
No
No
-L- 23+50 LT
4
-L-20+17RT
(1)Deep
Creek
0.0
3.0
2.0
0.2
21
332
1.08%
0.6
1.4
0.7
1.5
No
No
-L- 23+49 RT
5
-L-23+51 LT
(1)Deep
Creek
0.0
3.0
2.0
0.6
57
227
0.83%
1.1
1.5
1.5
1.7
No
No
-L- 25+78 LT
5
-L-23+50RT
(1)Deep
Creek
0.0
3.0
2.0
0.1
14
228
0.36%
0.4
0.9
0.5
0.9
No
No
-L- 25+78 RT
5
-L- 25+78 LT
(1)Deep
Creek
0.0
3.0
2.0
0.7
71
277
0.82%
1.4
1.6
1.8
1.7
No
No
-L- 28+55 LT
5
-L-25+78RT
(1)Deep
Creek
0.0
3.0
2.0
0.1
13
274
0.48%
0.3
0.9
0.4
1.0
No
No
-L- 28+52 RT
5
-L- 28+56 LT
(1)Deep
Creek
0.0
3.0
2.0
4.6
458
926
0.47%
9.2
2.1
12.0
2.3
No
No
-L- 37+82 LT
5
-L-28+53RT
(1)Deep
Creek
0.0
2.0
2.0
0.5
55
927
0.59%
1.0
1.4
1.3
1.5
No
No
-L- 37+80 RT
6
-L- 37+82 LT
(1)Deep
Creek
0.0
3.0
2.0
1.8
180
268
0.15%
3.0
0.9
3.0
0.9
No
No
-L- 40+50 LT
6
-L- 40+50 LT
(1)Deep
Creek
2.0
3.0
2.0
14.9
1487
193
0.15%
13.4
1.5
13.4
1.6
No
No
-L- 42+43 LT
6
-L-37+80RT
(1)Deep
Creek
0.0
3.0
2.0
0.2
18
463
0.32%
0.3
0.8
0.3
0.8
No
No
-L- 42+43 RT
Additional Comments

I l way North Carolina Department of Transportation
17i(]rm Vc1ter
Highway Stormwater Program -
STORMWATER MANAGEMENT PLAN
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: TIP No.: R-5740 County ies : Perquimans Page 4 of 8
Swales
Sheet
No.
Station & Coordinates
(Road and Non Road
Projects)
Surface
Water
Body
Base
Width
ft
Front
Slope
H:1
Back
Slope
H:1
Drainage
Area
ac
Recommended
Treatm't Length
ft
Actual
Length
(ft)
Longitudinal
Slope
%
Q2
cfs
V2
(fps)
010
cfs)
V10
(f s
Rock
Checks
Used
BMP
Associated w/
Buffer Rules?
6
-L- 42+44 LT
(1)Deep
Creek
0.0
3.0
2.0
1.0
103
331
0.33%
2.0
1.3
2.6
1.3
No
No
-L- 45+75 LT
6
-L-42+44 RT
(1)Deep
Creek
0.0
3.0
2.0
0.1
12
256
0.39°%
0.2
0.7
0.2
0.8
No
No
-L- 45+00 RT
6
-L- 45+97 LT
(1)Deep
Creek
0.0
2.0
2.0
6.7
665
887
0.56°%
7.8
2.1
7.8
2.3
No
No
-L- 54+84 LT
6
-L-46+14 RT
(1)Deep
Creek
0.0
3.0
2.0
0.5
54
867
0.44%
1.5
1.3
2.0
1.4
No
No
-L- 54+81 RT
7
-L- 55+00 LT
(1)Deep
Creek
0.0
2.0
2.0
1.2
116
536
0.56%
1.9
1.6
2.5
1.7
No
No
-L- 60+36 LT
7
-L- 55+05 RT
(1)Deep
Creek
2.0
3.0
2.0
57.4
5740
531
0.41 %
36.0
2.7
36.0
3.0
No
No
-L- 60+36 RT
7
-L- 60+37 LT
(1)Deep
Creek
0.0
3.0
2.0
14.4
1436
1213
0.07°%
12.5
1.0
12.5
1.1
No
No
-L- 72+50 LT
8
-L-72+50LT
(1)Deep
Creek
0.0
3.0
2.0
14.4
1436
170
0.41%
4.8
2.1
4.8
2.2
No
No
-L- 74+20 LT
8
-L-60+37RT
(1)Deep
Creek
0.0
3.0
2.0
0.7
66
1383
0.14°%
1.6
0.9
2.0
0.9
No
No
-L- 74+20 RT
8
-L- 74+20 LT
(1)Deep
Creek
0.0
2.0
2.0
7.5
755
452
0.73%
6.2
2.2
6.2
2.4
No
No
-L- 78+72 LT
9
-L- 78+72 LT
(1)Deep
Creek
0.0
2.0
2.0
7.5
755
58
1.72°%
2.4
3.1
2.4
3.3
No
No
-L- 79+30 LT
9
-L- 79+30 LT
(1)Deep
Creek
0.0
4.0
2.0
7.5
755
36
3.94°%
1.0
3.9
1.0
4.2
No
No
-L- 79+66 LT
8
-L-74+20RT
(1)Deep
Creek
0.0
2.0
2.0
0.7
68
430
0.77%
2.7
1.9
2.7
1.9
No
No
-L- 78+50 RT
9
-L-79+20RT
(1)Deep
Creek
0.0
3.0
2.0
0.7
68
30
3.80%
2.0
3.2
2.7
3.4
No
No
-L- 79+50 RT
9
-L- 78+85 RT
(1)Deep
Creek
0.0
2.0
2.0
0.7
68
35
2.74%
2.0
2.9
2.7
3.1
No
No
-L- 79+20 RT
9
-L-78+50RT
(1)Deep
Creek
0.0
2.0
2.0
0.7
68
35
0.86%
2.0
1.9
2.7
2.0
No
No
-L- 78+85 RT
9
-L- 80+00 LT
(1)Deep
Creek
2.0
4.0
2.0
13.5
1349
45
2.22%
15.6
4.0
15.6
4.3
No
No
-L- 80+45 LT
9
-L- 80+45 LT
(1)Deep
Creek
2.0
2.0
2.0
13.5
1349
51
1.43%
15.6
3.6
15.6
3.9
No
No
L- 80+96 LT
9
-L- 80+96 LT
(1)Deep
Creek
2.0
2.0
2.0
13.5
1349
49
0.06°%
15.6
1.1
15.6
1.2
No
No
L- 81+45 LT
Additional Comments

I lig way North Carolina Department of Transportation
7i(]Ci1714'ct t('P
,.. Highway Stormwater Program
STORMWATER MANAGEMENT PLAN °' ^
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: TIP No.: R-5740 County ies : Perquimans Page 5 of 8
Swales
Sheet
No.
Station & Coordinates
(Road and Non Road
Projects)
Surface
Water
Body
Base
Width
ft
Front
Slope
H:1
Back
Slope
H:1
Drainage
Area
ac
Recommended
Treatm't Length
ft
Actual
Length
(ft)
Longitudinal
Slope
N
Q2
cfs
V2
(fps)
010
cfs)
V10
(f s
Rock
Checks
Used
BMP
Associated w/
Buffer Rules?
9
-L- 82+70 LT
(1)Deep
Creek
0.0
3.0
2.0
13.5
1349
1475
0.27°%
15.6
1.9
15.6
2.0
No
No
-L- 97+45 LT
9
-L-80+00RT
(1)Deep
Creek
3.0
3.0
2.0
52.0
5203
45
2.96%
36.0
5.7
36.0
5.7
No
No
-L- 80+45 RT
9
-L- 80+45 RT
(1)Deep
Creek
3.0
2.0
2.0
52.0
5203
47
0.19°%
36.0
2.2
36.0
2.2
No
No
L- 80+92 RT
9
-L-80+92RT
(1)Deep
Creek
3.0
2.0
2.0
52.0
5203
528
0.19°%
36.0
2.2
36.0
2.2
No
No
-L- 86+20 RT
9
-L-86+80RT
(1)Deep
Creek
4.0
2.0
2.0
49.6
4961
1750
0.17°%
33.8
2.0
33.8
2.0
No
No
-L- 104+30 RT
10
-L- 90+09 LT
(1)Deep
Creek
0.0
3.0
2.0
1.1
110
136
0.47%
1.8
1.4
2.4
1.5
No
No
-L- 99+45 LT
10
-L- 99+45 LT
(1)Deep
Creek
0.0
3.0
2.0
1.4
136
474
0.34%
3.1
1.4
4.1
1.5
No
No
L- 104+19 LT
11
-L- 104+20 LT
(1)Deep
Creek
2.0
3.0
2.0
13.7
1367
802
0.15°%
11.4
1.4
11.4
1.5
No
No
-L- 112+22 LT
11
-L- 104+93 RT
(1)Deep
Creek
0.0
3.0
2.0
1.5
148
432
0.28°%
3.9
1.4
5.1
1.5
No
No
-L- 109+25 RT
11
-L- 109+25 RT
(1)Deep
Creek
0.0
3.0
2.0
0.5
46
255
0.05°%
1.1
0.5
1.4
0.6
No
No
-L- 111+80 RT
11
-L- 112+22 LT
(1)Deep
Creek
2.0
3.0
2.0
5.7
567
336
0.02°%
5.2
0.6
5.2
0.6
No
No
-L- 115+58 LT
11
-L- 111+80 RT
(2)Mills
Creek
0.0
3.0
2.0
0.8
82
436
0.03°%
1.4
0.5
1.9
0.5
No
No
-L- 116+16 RT
12
-L- 115+58 LT
(2)Mills
Creek
2.0
2.0
2.0
7.5
750
242
0.31 %
8.7
1.7
8.7
1.8
No
No
-L- 118+00 LT
12
-L- 118+00 LT
(2)Mills
Creek
2.0
2.0
2.0
18.2
1821
1383
0.31 %
17.6
2.1
17.6
2.3
No
No
-L- 131+83 LT
13
-L- 131+83 LT
(2)Mills
Creek
2.0
2.0
2.0
18.2
1821
85
2.08°%
17.6
4.2
17.6
4.6
No
No
-L- 132+68 LT
12
-L- 116+16 RT
(2)Mills
Creek
0.0
3.0
2.0
2.0
202
592
0.11%
3.0
0.9
3.9
1.0
No
No
-L- 122+08 RT
12
-L- 122+08 RT
(2)Mills
Creek
2.0
2.0
2.0
8.8
877
442
0.22°%
11.1
1.7
14.4
1.8
No
No
-L- 126+50 RT
12
-L- 126+50 RT
(2)Mills
Creek
2.0
2.0
2.0
8.8
877
533
0.77°%
11.1
2.7
14.4
2.9
No
No
-L- 131+83 RT
13
-L- 131+83 RT
(2)Mills
Creek
2.0
2.0
3.0
8.8
877
75
2.11%
11.1
3.8
14.4
4.1
No
No
-L- 132+58 RT
Additional Comments

I lighway North Carolina Department of Transportation
7i(]Ci1714'ct t('P
,.. Highway Stormwater Program •�
STORMWATER MANAGEMENT PLAN
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: TIP No.: R-5740 County ies : Perquimans Page 6 of 8
Swales
Sheet
No.
Station & Coordinates
(Road and Non Road
Projects)
Surface
Water
Body
Base
Width
ft
Front
Slope
(H:1)
Back
Slope
(H:1)
Drainage
Area
(ac)
Recommended
Treatm't Length
(ft
Actual
Length
(ft)
Longitudinal
Slope
%
Q2
cfs
V2
(fps)
010
cfs)
V10
(f s
Rock
Checks
Used
BMP
Associated w/
Buffer Rules?
13
-L- 133+25 LT
(2)Mills
Creek
2.0
2.0
4.0
7.0
698
71
1.41 %
14.0
3.4
18.2
3.6
No
No
-L- 133+96 LT
13
-L- 133+96 LT
(2)Mills
Creek
2.0
2.0
2.0
7.0
698
204
1.08%
14.0
3.3
18.2
3.5
No
No
-L- 136+00 LT
13
L- 136+00 LT
(2)Mills
Creek
2.0
2.0
2.0
7.0
698
985
0.32%
14.0
2.1
18.2
2.3
No
No
L- 145+85 LT
13
-L- 133+05 RT
(2)Mills
Creek
2.0
2.0
4.0
11.1
1115
91
2.07%
18.8
4.2
24.5
4.5
No
No
-L- 133+96 RT
13
-L- 133+96 RT
(2)Mills
Creek
2.0
2.0
2.0
11.1
1115
204
1.05%
18.8
3.5
24.5
3.8
No
No
-L- 136+00 RT
13
-L- 136+00 RT
(2)Mills
Creek
2.0
2.0
2.0
11.1
1115
1563
0.27°%
18.8
2.1
24.5
2.3
No
No
-L- 151+63 RT
14
-L- 145+85 LT
(2)Mills
Creek
2.0
2.0
2.0
4.8
485
1185
0.15%
10.2
1.5
13.3
1.6
No
No
-L- 157+70 LT
14
-L- 152+22 RT
(2)Mills
Creek
2.0
2.0
2.0
3.8
379
949
0.07%
5.5
0.9
7.1
1.0
No
No
-L- 161+71 RT
15
-L- 157+70 LT
(2)Mills
Creek
2.0
2.0
2.0
1.1
105
558
0.02%
2.5
0.4
3.3
0.5
No
No
-L- 163+28 LT
15
-L- 161+71 RT
(2)Mills
Creek
0.0
3.0
2.0
1.5
152
329
0.05°%
1.9
0.6
2.5
0.7
No
No
-L- 165+00 RT
15
-L- 163+28 LT
(2)Mills
Creek
0.0
3.0
2.0
0.7
74
262
0.03°%
1.9
0.5
2.5
0.6
No
No
-L- 165+90 LT
16
-L- 165+90 LT
(3)Little River
0.0
3.0
2.0
1.3
130
487
0.16°%
3.4
1.1
4.4
1.2
No
No
-L- 170+77 LT
16
-L- 166+47 RT
(3)Little River
0.0
3.0
2.0
1.6
157
835
0.31°%
2.4
1.3
3.1
1.4
No
No
-L- 174+82 RT
16
-L- 170+77 LT
(3)Little River
4.0
3.0
2.0
38.7
3866
404
0.20°%
28.1
1.9
28.1
2.1
No
No
-L- 174+81 LT
16
-L- 174+81 LT
(3)Little River
4.0
3.0
2.0
40.2
4024
1420
0.10%
18.4
1.3
18.4
1.3
No
No
-L- 189+01 LT
16
-L- 174+83 RT
(3)Little River
0.0
3.0
2.0
2.2
222
1359
0.08%
6.0
1.0
7.8
1.0
No
No
-L- 188+42 RT
17
-L- 188+42 RT
(3)Little River
0.0
3.0
2.0
0.7
73
457
0.02%
1.3
0.4
1.7
0.4
No
No
-L- 192+99 RT
17
-L- 1+01 LT
(3)Little River
0.0
3.0
2.0
5.0
495
399
0.25°%
6.3
1.5
6.3
1.6
No
No
-L- 19393+00 LT
18
-L- 193+00 LT
(3)Little River
0.0
3.0
2.0
14.1
1413
600
0.25%
12.2
1.7
12.2
1.9
No
No
-L- 199+00 LT
Additional Comments

lig] nvay North Carolina Department of Transportation
! Sion i 1
,,, Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: TIP No.: R-5740 Count ies : Perquimans Page 7 of 8
Swales
Sheet
No.
Station & Coordinates
(Road and Non Road
Projects)
Surface
Water
Body
Base
Width
ft
Front
Slope
H:1
Back
Slope
(H:1)
Drainage
Area
(ac)
Recommended
Treatm't Length
(ft
Actual
Length
ft
Longitudinal
Slope
N
Q2
cfs
V2
(fps)
010
cfs)
V10
(f s
Rock
Checks
Used
BMP
Associated w/
Buffer Rules?
18
-L- 192+99 RT
(3)Little River
0.0
3.0
2.0
2.0
196
617
0.29°%
4.2
1.4
5.4
1.5
No
No
-L- 199+16 RT
18
-L- 199+17 RT
(3)Little River
0.0
3.0
2.0
0.1
6
69
2.28%
0.1
1.3
0.2
1.4
No
No
-L- 199+86 RT
18
-L- 199+86 RT
(3)Little River
0.0
3.0
2.0
0.4
38
514
0.11°%
0.9
0.7
1.2
0.7
No
No
-L- 205+00 RT
18
-L- 199+86 RT
(3)Little River
0.0
3.0
2.0
0.9
85
1167
0.11%
2.1
0.9
2.8
0.9
No
No
-L- 211 +53 RT
18
-L- 199+15 LT
(3)Little River
4.0
3.0
2.0
18.0
1800
485
0.31%
17.2
2.0
17.2
2.2
No
No
-L- 204+00 LT
19
-L- 205+04 LT
(3)Little River
4.0
3.0
2.0
21.7
2168
647
0.07°%
18.3
1.2
18.3
1.3
No
No
-L- 211+51 LT
19
-L- 211+58 LT
(3)Little River
0.0
3.0
2.0
1.5
145
79
0.53%
2.2
1.5
2.9
1.6
No
No
-L- 212+37 LT
19
-L- 211+59 RT
(3)Little River
0.0
3.0
2.0
0.5
54
581
0.28%
1.3
1.1
1.7
1.1
No
No
-L- 217+40 RT
19
-L- 212+37 LT
(3)Little River
4.0
3.0
2.0
27.6
2760
684
0.15°%
27.5
1.7
27.5
1.9
No
No
-L- 219+21 LT
20
-L- 217+82 RT
(3)Little River
0.0
3.0
2.0
0.2
19
140
2.43%
0.5
1.9
0.6
2.0
No
No
-L- 219+22 RT
20
-L- 219+23 RT
(3)Little River
0.0
3.0
2.0
0.9
88
1029
0.20°%
2.0
1.0
2.6
1.1
No
No
-L- 229+52 RT
20
-L- 219+39 LT
(3)Little River
3.0
3.0
2.0
33.6
3359
586
0.24°%
26.5
2.1
26.5
2.2
No
No
-L- 225+25 LT
20
-L- 225+LT
(3)Little River
0.0
3.0
2.0
10.9
1091
614
0.22%
11.5
1.6
11.5
1.7
No
No
-L- 231+39 LT
39
20
-L- 229+81 RT
(3)Little River
0.0
3.0
2.0
0.2
18
162
1.93%
0.3
1.5
0.3
1.6
No
No
-L-231+43 RT
21
-L- 231+44 RT
(3)Little River
0.0
3.0
2.0
1.1
114
499
0.41%
3.1
1.5
4.0
1.6
No
No
-L- 236+43 RT
21
-L- 231+40 LT
(3)Little River
0.0
3.0
2.0
1.1
114
564
0.20°%
3.1
1.2
4.0
1.2
No
No
-L- 237+04 LT
21
-L- 236+43 RT
(3)Little River
0.0
3.0
2.0
0.7
70
476
0.40%
1.4
1.2
1.9
1.3
No
No
-L-241+19 RT
21
-L- 237+04 LT
(3)Little River
0.0
3.0
2.0
2.1
213
467
0.22°%
4.1
1.3
5.4
1.4
No
No
-L- 241+71 LT
4
-L- 11+05 LT
(1)Deep
Creek
0.0
3.0
2.0
0.3
28
155
0.19°%
0.6
0.8
0.8
0.8
No
No
-L- 12+60 LT
Additional Comments

I iig] nvay North Carolina Department of Transportation
Sion I!P
� ,,,, Highway Stormwater Program �•
STORMWATER MANAGEMENT PLAN
(Version 2.07; Released October 2016) FOR NCDOT PROJECTS
WBS Element: TIP No.: R-5740 Count ies : Perquimans Page 8 of 8
Swales
Sheet
No.
Station & Coordinates
(Road and Non Road
Projects)
Surface
Water
Body
Base
Width
ft
Front
Slope
H:1
Back
Slope
(H:1)
Drainage
Area
(ac)
Recommended
Treatm't Length
(ft
Actual
Length
(ft)
Longitudinal
Slope
N
Q2
cfs
V2
(fps)
010
cfs
V10
(fps)
Rock
Checks
Used
BMP
Associated w/
Buffer Rules?
4
-Y1-8+91 LT
(1)Deep
Creek
0.0
3.0
2.0
1.2
115
154
0.15°%
2.9
1.0
3.7
1.1
No
No
-Y1-10+45 LT
10
-Y3- 13+16 LT
(1)Deep
Creek
0.0
3.0
2.0
1.1
110
31
0.29°%
1.8
1.2
2.4
1.3
No
No
-Y3- 13+47 LT
10
Y3- 12+60 RT
(1)Deep
Creek
0.0
3.0
2.0
13.5
1349
71
0.96%
15.6
3.0
15.6
3.3
No
No
Y3- 13+31 RT
14
-Y5- 10+15 RT
(2)Mills
Creek
0.0
3.0
2.0
0.7
72
10
3.91%
1.3
2.8
1.7
3.0
No
No
-Y5- 10+25 RT
14
-Y5- 10+45 LT
(2)Mills
Creek
0.0
3.0
2.0
0.2
24
16
1.90%
0.5
1.7
0.7
1.8
No
No
-Y5- 10+61 LT
Additional Comments