20150916 Ver 1_Stormwater Mgt Plan Update_20150915

Carpenter,Kristi
From:Mason, James S
Sent:Tuesday, September 15, 2015 11:32 AM
To:Wanucha, Dave
Cc:Andrew Williams 2 ([e-mail]); Rivenbark, Chris
Subject:RE: B-5128 question
Attachments:B-5128_HYD_SMPv2.02_150624_Updated 09152015.pdf
Dave-

Attached is a copy of the stormwater management plan on the correct version. Hydro has also added a note in the
general narrative section of Page 1 addressing your question about the backfilling of the RCBC. We will also be updating
the version of the application on the website. If you have any additional questions please let me know.

Thanks,

Jim

From: Wanucha, Dave
Sent: Monday, September 14, 2015 12:19 PM
To: Mason, James S
Subject: B-5128 question

Hi Jim,
Will the RCBC be backfilled with native channel material per DOT’s guidance? I am not seeing that mentioned on the
plans anywhere. DOT also has a new version of the stormwater mgt plan (ver 2.02, see attached). Please review to
ensure that your data includes what 2.02 requires if applicable. Thanks.

Dave W.

Dave Wanucha
NC DENR Winston Salem Region Office
NC Division of Water Resources
Transportation Permitting Unit
450 W. Hanes Mill Rd, Suite 300
Winston-Salem, NC 27105
Cell [phone]
Office [phone]
[e-mail]

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1

E Il�;hti�'ii)' North Carolina Department of Transportation
Si[�1�11]��vclfPr Highway Stormwater Program �
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STORMWATER MANAGEMENT PLAN _ _
(Version 2.02; Released April 2015) FOR NCDOT PROJECTS
WBS Element: 42286.1.1 TIP No.: B-5128 County(ies): Randolph Page 1 of 2
General Project Information
WBS Element: 42286.1.1 TIP Number: B-5128 Project Type: Bridge Replacement Date: 6/24/2015
NCDOT Contact: Binod Yadav, P.E, CFM Contractor I Designer: Binod Yadav, P.E, CFM
Address: 1020 Birch Ridge Dr. Address: 1020 Birch Ridge Dr.
Raleigh, NC 27610 Raleigh, NC 27610
Phone: [phone] Phone: [phone]
Email: bk adav ncdot. ov Email: bk adav ncdot. ov
Cit ITown: Trinit Count ies): Randol h
River Basin s: Yadkin-Pee Dee CAMA County? No
Wetlands within Project Limits? No
Pro'ect Description
Pro'ect Len th lin. miles or feet : 0.10 Surrounding Land Use: Rural Agricultural Land
Proposed Pro'ect Existin Site
Pro'ect Buiit-Upon Area ac. 02 ac. 02 ac.
Typical Cross Section Description: ten-foot lanes; three to four-foot grassed shoulders, seven-foot shoulders with guardrail; ten-foot lanes; three to four-foot grassed shoulders, seven-foot shoulders with
no median guardrail; no median
Annual Avg Daily Traffic (veh/hr/day): Design/Future: 900 Year: 2035 Existin : 550 Year: 2013
General Project Narrative: The project consists of replacing Bridge# 58 on SR 1404 (Fuller Mill Rd.) over Unnamed Trib. to Little Uwharrie River. The approach work will consist of raising the existing
(Description of Minimization of Water roadway grade and providing grass shoulders and guardrails. Bridge #58, existing two spans (1 @18'-1" 8 1@17-8") with timber deck on timber floor beams, will be replaced
Quality Impacts) with 2@7'x6' RCBC (buried 1 foot)
Best Management Practices
-Class B rip rap used for toe protection and also used in ditches to reduce velocity of stormwater flow
-Grass shoulders having a minimum three-foot width are used in the design
-Native bed material used to backfill both culvert barrels
Waterbody Information
Surface Water Body (1): Unamed Tributary To Little Uwharrie River NCDWR Stream Index No.: 13-2-1
NCDWR Surface Water Classification for Water Body Primary Classification: Class C Water Supply III (WS-III)
Supplemental Classification:
Other Stream Classification:
Impairments:
Aquatic T&E Species? No Comments:
NRTR Stream ID: SA 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, justify in the
(If yes, provide justification in the General Project Narrative) General Project Narrative)

I II�E1'�v�ik' North Carolina Department of Transportation �
�,4+��a��r�v�tnr
�,, . _ , Highway Stormwater Program �*''
STORMWATER MANAGEMENT PLAN
(Version 2.02; Released April 2015) FOR NCDOT PROJECTS
WBS Element: 42286.1.1 TIP No.: B-5128 County(ies): Randolph Page 2 of 2
Bridge to Culvert Avoidance and Minimization
Proposed Structure Summary
Sheet No. & Station Sheet No.: 4 Station: 13+75 -L- Number of Culverts: 2
Drainage Area (ac or sq mi): 0.69 Sq. Miles Culvert Width/Diameter (ft : 7'
Surface Water Body: 1 Unamed Tributar To Little Uwharrie River Culvert Height (ft): 6'
Culvert T e: Reinforced concrete box culvert Culvert Length ft 58'
Avoidance and Minimization Efforts:
(Bridge to Culvert)
Stream Slope Fish and/or Aquatic Life Passage
Existing Average Stream Slope (°/a): 1.00 % Existing Low Flow Channel Dimensions 14 ft. wide
Proposed Culvert Slope (%): 1.00 % in the Stream:
Culvert Burial
Proposed Culvert Burial Depth (ft): 1
Existing Streambed Material: Cobbles and sand Proposed Low Flow Dimensions 15 ft wide
Through the Culvert:
Proposed Sills/Baffles:
Existing Low Flow Velocities in the
Stream (ft/s): 7'4
ropose ow ow e oci ies roug
the Culvert (fUs): 6
Alternating Low Flow Sills/Baffles:
Culvert/Stream Alignment
Stream Patterns Upstream and Downstream
of the Culvert that Could Affect Fish
Passage and Bank Stability:
Bed Forms Impacted by Culvert (riffles,
pools, glides, etc.):
Low Flow Floodplain Bench Required? No
(provide justification)
Sharp Bends at Inlet/Outlet? No
(describe culvert alignment with stream)
Stream Realignment Necessary? (provide No
justification)
Bank Stabilization: CL I riprap with filter fabric is proposed for a bank stabilization. The width of bank stabilization varies from 12' to 15' at both upstream &
downstream of the culverts.
Outlet Velocities
Natural Stream Channel 2-yr Velocity (ft/s): 4.7 Natural Stream Channel 10-yr Velocity (ft/s): 5.7
Proposed Culvert 2-yr Outlet Velocity (ft/s): 5.5 Proposed Culvert 10-yr Outlet Velocity (ft/s): 6.7
Roadway Geometric Considerations
Evaluate/Describe Roadway Geometric Constraints: