20170372 Ver 1_17BP.10.R.58_HYD_SMP_04.30.14 Rev 05-25-2017_20170530

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5]c�r�134�,`�tP'T Highway Stormwater Program ���
STORMWATER MANAGEMENT PLAN �� :=::��""
(Version 1.2; Released September 2011) FOR LINEAR ROADWAY PROJECTS
Project/TIP No.: 17BP.10.R.58 County(ies): Anson Page 1 of 3
General Project Information
Project No.: 17BP.10.R.58 Project Type: Brid e Replacement Date: 4/28/2014
NCDOT Contact: Paul Fisher Contractor / Designer: HDR Engineering
Address: 1020 Birch Ridge Road Address: 3733 National Drive, Suite 207
Raleigh, NC 27612
Phone: [phone] Phone: [phone]
Email: pfisher ncdot. ov Email: Joshua.Massrock hdrinc.com
City/Town: Morven, NC County ies : Anson
River Basin s): Yadkin-Pee Dee CAMA Count ? No
Primary Receiving Water: Cedar Creek NCDWQ Stream Index No.: 13-47-3
NCDWQ Surface Water Classification for Primary Receiving Water Primary: Class C
Supplemental:
Other Stream Classification:
303(d) Impairments: None
Buffer Rules in Effect N/A
Project Description
Project Length (lin. Miles or feet): 0.09 mi. Surrounding Land Use: Residential-Rural
Proposed Project Existing Site
Project Built-Upon Area ac. 0.28 ac. 0.19 ac.
Typical Cross Section Description: Roadway -(2) 10' travel lanes with 4' shoulders. Roadway -(2) 8' lanes with 0.5' shoulders.
Culvert- (2) 10' travel lanes 34' shoulder point to shoulder point. Bridge- One lane bridge 18' outside to outside.
Average Daily Traffic (veh/hr/day): Design/Future: 220 2025 Existin : 110 2011
General Project Narrative: Project SF-030086 replaces bridge number 86 on SR 1105 over Cedar Creek between SR 1143 and SR 1106. The exisitng structure, built in 1958, is a single span 25'6"
bridge with a timber deck and I-beams. The proposed stucture is a triple barrel 12' X 7' RCBC buried 1' with 2.5' sills in barrels 1& 3. The culvert width matches the natural
stream channel width in the low flow culvert. Ditches were designed to achieve grass swale treatment where possible.
References

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.. . . Highway Stormwater Program
� STORMWATER MANAGEMENT PLAN
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(Version 1.2; Released September 2011) FOR LINEAR ROADWAY PROJECTS
Project/TIP No.: 17BP.10.R.58 County ies): Anson Page 2 of 3
Project Environmental Summary
Surface Water Impacts
Sheet Station Feature Water / Wetland / Receiving Surface NRTR Map NCDWQ Stream NCDWQ Surface 303(d) Type of Existing Proposed
No. From / To Impacted Buffer Type Water Name ID Index Water Classification Impairments Impact SCM SCM
4 �2+�2 Stream Perennial CedarCreek 13-47-3 C None Culvert N/A N/A
12+95
' List all stream and surface water impact locations regardless of jurisdiction or size.
Equalizer Pipes to be noted as a minimization of impacts.
All proposed SCMs listed must also be listed under Swales, Preformed Sour Holes and other Energy Dissipators, or Other Stormwater Control Measures.
Description of Minimization of Impacts or Mitigation
References

E 1!€;l l`1'�1\' North Carolina Department of Transportation ~�
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, , ,.,, Highway Stormwater Program . ,��
STORMWATER MANAGEMENT PLAN F�''� •� • � 'f
(Version 7.2; Released September 2011) FOR LINEAR ROADWAY PROJECTS
Project/TIP No.: 17BP.10.R.58 County ies): Anson Page 3 of 3
Swales
Stream Drainage Recommended Actual Longitudinal Rock
Sheet Station Crossing Base Width Front Slope Back Slope Area Treatment Length Length Slope Q2 V2 Q10 V10 Checks
No. From / To Station ft) H:V) H:V) ac ft ft °/a cfs f s cfs f s Used
4 10+50 � 2+g2.gg -L- 0.0 2 2 0.26 26 208 2.95% 0.8 0.4 0.9 0.5 Na
12+58
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
❑ vEs ❑ No Have minimum design criteria, as presented in the NCDOT Best Management Practices Toolbox, Version 1(March 2008), been met and verified? If No,
provide further explanantion of why design criteria was not met.
Additional Comments