Loading...
HomeMy WebLinkAbout20190120 Ver 1_R-5779_PermitDrawings_(2019-01-28)_20190128(Version 2.08; Released April 2018) 44834.1.1 TIP No.:R-5779 County(ies):Madison Page 1 of 2 TIP Number: Date: Phone: Phone: Email: Email: County(ies): CAMA County? No Design/Future: Year:2040 Existing: Year: Aquatic T&E Species?No Comments: No No No Wetlands within Project Limits? High Quality Waters (HQW)Supplemental Classification: Rural Big Branch 6-96-10-5 0.6 0.35 Project Description Proposed Project French BroadRiver Basin(s): City/Town: 1.3 Typical Cross Section Description: Surrounding Land Use: General Project Narrative: (Description of Minimization of Water Quality Impacts) No rdbryan@ncdot.gov Asheville, NC, 28801 Address: 1/28/2018 MadisonMars Hill Roger Bryan 55 Orange Street WBS Element: Roadway RelocationWBS Element: Kimley-HornNCDOT Contact: (828) 251-6171 Suite #600 Raleigh, NC, 27601 Contractor / Designer: (919) 653-6623 421 Fayetteville Street North Carolina Department of Transportation Highway Stormwater Program STORMWATER MANAGEMENT PLAN FOR NCDOT PROJECTS Project Type: Highway Division 13 Address: General Project Information R-577944834.1.1 Impairments: Other Stream Classification: Primary Classification: Project Built-Upon Area (ac.) This is a Division 13 managed project. Existing drainage patterns to be maintained to the best extent practical. Drainage systems sized with future development taken into account. The following items were incorporated for the Minimization of water quality Impacts: - Alignment was designed to minimize wetland and stream crossing impacts. - 2:1 Slopes were used to reduce structure length. - Grassed swales utilized to the maximum extent practical. - Use of open channel design with Rip Rap on Banks only where practical in areas of parallel jurisdictional stream impacts. - No cut or fill is proposed within the FEMA regulated floodplain. N/ABuffer Rules in Effect:Big Branch None 400 vpd Crossroads Parkway Extension: Typical section consist of 2 11' travel lane at 2% slope, 6' shoulder at 8%. Ditches consist of 4:1 slopes from shoulder and 2:1 slopes tying into existing ground. Waterbody Information 2017 NCDWR Stream Index No.: NRTR Stream ID: Annual Avg Daily Traffic (veh/hr/day): Existing Site Project Length (lin. miles or feet): ac. Surface Water Body (1): Water Supply II (WS-II)NCDWR Surface Water Classification for Water Body ac. Existing site consist of lightly wooded areas and undeveloped land. 1000 vpd vance.blanton@kimley-horn.com Project Includes Bridge Spanning Water Body? Deck Drains Discharge Over Buffer? Dissipator Pads Provided in Buffer?No Deck Drains Discharge Over Water Body?(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) (Version 2.08; Released April 2018) 44834.1.1 TIP No.:R-5779 County(ies):Madison Page 2 of 2 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? 15+75 -L- 18+50 -L- North Carolina Department of Transportation Highway Stormwater Program STORMWATER MANAGEMENT PLAN FOR NCDOT PROJECTS Additional Comments NoBig Branch Swales No1.80.5 45 0.90.0 4.0 2.0 2754 0.7 WBS Element: 1.71.20% Hand Existing Existing Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural Site Station Structure Fill In Fill In in Clearing in SW SW Impacts Impacts Stream No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design (ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft) 1 12+33/12+53 -Y- TIE 18" INTO EXISTING < 0.01 10 WING WALL 2 14+43/14+68 -L- RIP RAP < 0.01 < 0.01 20 20 3 18+30/18+70 -L- RIP RAP < 0.01 < 0.01 20 20 4 23+77/24+33 -L- RIP RAP < 0.01 < 0.01 41 10 24+33/26+03 -L- CULVERT 0.02 180 TOTALS*: 0.03 < 0.01 261 60 0 *Rounded totals are sum of actual impacts NOTES: Revised 2018 Feb SHEET 7 OF 7 WETLAND AND SURACE WATER IMPACTS SUMMARY WETLAND IMPACTS SURFACE WATER IMPACTS MADISON R-5779 44834.1.1 NC DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS 1/28/2019