20191744 Ver 1_160019_Permit Drawings_20180710 Revised_20191220

Highway North Carolina Department of Transportation
Stormwater !;
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
(Version 2.08; Released April 2018) FOR NCDOT PROJECTS
WBS Element: 17BP.7.R.110 TIP No.: SF-160019 County(ies): Caswell Page 1 of 1
General Project Information
WBS Element:
17BP.7.R.110
ITIP Number: SF-160019
Project Type: Bridge Replacement
Date: 7/10/2018
NCDOT Contact:
Galen Cail, PE
Contractor / Designer:
Kyle Stoffer
Address:
NCDOT Hydraulics Unit
Address:
HDR Engineering, Inc. of the Carolinas
1590 Mail Services Unit
555 Fayetteville Street, Suite 900
Raleigh, NC 27560
Raleigh, NC 27601
Phone:
[phone]
Phone:
[phone]
Email:
[e-mail]
Email:
I [e-mail]
City/Town:
Prospect Hill
County(ies):
Caswell
River Basin(s):
Roanoke
CAMA County?
No
Wetlands within Project Limits?
Yes
Project Description
Project Length (lin. miles or feet):
0.104 miles Surrounding Land Use: Low Residential, Wooded
Proposed Project
Existing Site
Project Built -Upon Area (ac.)
0.4 ac.
0.3 ac.
Typical Cross Section Description:
Dave Smith Road (SR 1771): 2 paved lanes (total 20' wide), 4' shoulder on each side (7'
Dave Smith Road (SR 1771): 2 paved lanes (total 20' wide), 2' shoulder on each side.
with guardrail).
Annual Avg Daily Traffic (veh/hr/day):
Design/Future: 520 Year: 2025
Existing: 260 Year: 2009
General Project Narrative:
The North Carolina Department of Transportation (NCDOT) has proposed to replace Caswell County Bridge #19 on Dave Smith Road (SR 1771) over Lynch Creek. The
(Description of Minimization of Water
existing structure is a three span bridge (1 @30'4, 1 @30'0, 1 @30'4) and timber deck on I -Beams. The end and interior bents are steel caps and piles. The proposed structure
Quality Impacts)
is a single span (1 @100'), 39" box beam with 4' deep caps. This structure has been designed to have as little environmental, wetland, and surface water impacts as possible.
2:1 roadway fill slope will be used in the wetland areas to minimize wetland impacts. Permanent drainage easement (PDE) will be set to have as little wetland impacts as
possible.
Deck drains are required for the proposed bridge. There is no direct discharge of bridge storm water into the receiving water. The deck drains discharge into the Class 11 Rip
Rap sloping abutments. Storm water impacts to the stream have been minimized by utilizing grated inlets and pipes to collect bridge storm water and use rip rap outlet
protection at 14+70 RT to dissipate energy to provide a diffuse flow (non -erosive sheet flow) in a wooded area. This diffused flow will run for a distance of 16'+/- before
entering the wetland. In the northwest quadrant an existing roadside ditch outlets at 13+38 LT with Class B Rip Rap outlet protection and becomes non -erosive sheet flow
126'+/- before entering the wetland. In the northeast quadrant an existing roadside ditch outlets at 18+52 LT and becomes non -erosive sheet flow 112'+/- before entering the
wetland. In the southeast quadrant an existing roadside ditch outlets at 17+30 RT and becomes non -erosive sheet flow 32'+/- before entering the wetland. In the southwest
quadrant an existing roadside ditch outlets at 14+43 RT and becomes non -erosive sheet flow 75'+/- before entering the stream. Due to the nature of low impact bridge
replacement, the increases in stormwater discharges (post vs pre condition) are insignificant and the existing ditches do not need to be modified. Therefore, additional
stormwater measures are not required.
Waterbody Information
Surface Water Body (1): Lynch Creek
NCDWR Stream Index No.:
22-58-1-2
NCDWR Surface Water Classification for Water Body
Primary Classification:
Class C
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?
Yes
Deck Drains Discharge Over Buffer?
N/A Dissipator Pads Provided in Buffer?
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)

69
aLl
1771
1767
17BP.7.R.110
68
PROJECT
°
1771LIMITS
100
1773
— — — —
CASWELL COUNTY
— — — —
1004
— — — -r—-----------
O{ANGE COUNTY
---
\
1369 ,\
1367
"J
1366
/ 1368
1368
1361
I
—
1422
/
1004
1371
13 1
VICINITY MAP
(NOT TO SCALE)
OFF -SITE DETOUR
TO SR 1004
(CORBETT RIDGE ROAD)
DESIGN DATA
ADT 2009 = 260
ADT 2025 = 520
V = 55 MPH
SUB REGIONAL TIER
LOCAL
STATE OF NORTH CAROLINA
DIVISION OF HIGHWAYS
CASWELL COUNTY
LOCATION: BRIDGE NO. 19 OVER LYNCH CREEK ON SR 1771 (DAVE SMITH ROAD)
TYPE OF WORK: GRADING, PAVING, DRAINAGE AND STRUCTURE
WETLAND AND SURFACE WATER IMPACTS PERMIT
-G/ PROJECT 17BP.7RJ/0 --LV Sta.15+12.70 ��� ��
- POT Sta.13+00.00 /� END BRIDGE
1
I* �
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-L-
-----------------------------
----------------
-----------
*1 SR (DAVE SMITH ROAD)
-L- POT Sta.
BEGIN APPROACH
-L- Sta. 15+02DO / * `1 i * N6,VPROACH SLAB
* Sta.16+26.00
PROJECT LENGTH
LENGTH ROADWAY TIP PROJECT = 0.085 MILES
LENGTH STRUCTURE TIP PROJECT = 0.019 MILES
TOTAL LENGTH TIP PROJECT = 0.104 MILES
Prepared In the Office of Mott MacDonald for
DIVISION 7
NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
2018 STANDARD SPECIFICATIONS
TIMRDJORDAN, PE
LETTING DATE:
DAVID FUH PE
HYDRAULICS ENGINEER
NCDOT CONTACT. • TIM POWERS, PE
DIVISION BRIDGE
PROGRAM MANAGER
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MOTT 1919) 552-2254 (Fax)
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LICENSE NO. F-0669
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N.C.B.E.L.S. License Number: F-0116

PROJECTRUERIENU SHEET NO.
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WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(From/To)
Structure
Size / Type
Permanent
Fill In
Wetlands
(ac)
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
(ac)
Mechanized
Clearing
in Wetlands
(ac)
Hand
Clearing
in
Wetlands
(ac)
Permanent
SW
impacts
(ac)
Temp.
SW
impacts
(ac)
Existing
Channel
Impacts
Permanent
(ft)
Existing
Channel
Impacts
Temp.
(ft)
Natural
Stream
Design
(ft)
1
-L- 15+14 to 16+14
SINGLE SPAN 39" BOX BEAK/
0.01
0.01
0.06
TOTALS*:
1 0.01
1
1
0.01
1 0.06
*Rounded totals are sum of actual impacts
NOTES:
September 2014