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HomeMy WebLinkAbout20161131 Ver 2_Build Maps_20171010(Version 2.05; Released April 2016) 46059.1.1 TIP No.:B-5345 County(ies):Guilford Page 1 of 3 TIP Number:Date: Phone:Phone: Email:Email: County(ies): CAMA County? Yes Design/Future:Year:2040 Existing:Year: Aquatic T&E Species?No Comments: Yes No No N/A 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) ac. 2 @ 12' wide lanes with grass shoulders 9900 jason.lawing@kimley-horn.com Project Includes Bridge Spanning Water Body?Deck Drains Discharge Over Buffer?Dissipator Pads Provided in Buffer? 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 III (WS-III)NCDWR Surface Water Classification for Water Body Jordan LakeBuffer Rules in Effect:SA None 6450 2 @ 12' wide lanes with typical 4' paved shoulders and side slopes that vary from 2:1 to 3:1 and lateral ditches with 3:1 front slopes and 3:1 back slopes. Waterbody Information 2017 NCDWR Stream Index No.: 46059.1.1 Impairments: Other Stream Classification: Primary Classification: Project Built-Upon Area (ac.) Replacement of Bridge No. 400456 on SR 2136 (Fleming Road) in Guilford County. The existing bridge, overall length (OAL) = 75' and width = 25', will be replaced with a bridge having an OAL = 85' and width of 42'. The new bridge is wider than the existing bridge to provide the required shoulders necessary for roadway and drainage. The roadway is being widened to provide the minimum lanes for safe travel. A detour bridge, overall length 65' and width 28.5', will be constructed east of the existing/proposed bridge. This bridge will be removed and area allowed to re-vegetate once the primary bridge has been replaced. Roadside ditches that were affected due to the detour and mainline fill slopes were replaced in kind. No new roadside ditches were introduced as part of this project. Wetlands on the left (west) side of the roadway should only have a minimal impact. No fill or excavation is anticipated in these wetlands. There are small areas of the wetlands that are located within the proposed PDE. Mechanized clearing has been shown in these areas as a worst case scenario, but ultimately impacts are not anticipated. Wetlands on the right (east) side of the roadway will be impacted due to the detour. The detour roadway embankment will be graded back down to natural ground elevation after the proposed bridge is constructed. This will provide an environment for the wetlands to potentially re-establish over time. Rip rap is placed on the bridge sloping abutments to act as slope stabilization and prevent erosion. Runoff from the bridge is captured on the low side of the bridge in shoulder berm gutter and traffic bearing 2GI's on either side of the road in the roadway sag. The system is designed to outfall outside of buffer zone 2 in the area of an existing wetland that will be disturbed by the detour. Once this wetland is allowed to re-establish it will provide treatment for the system outfall. The roadside ditch on the begin bridge right side that is being replaced due to the detour impacts is being replaced as a grass swale. This ditch will treat the additional impervious area from the paved shoulder on the begin bridge right side. The velocity of the swale entering the wetland is less than 2.0 fps. 421 Fayetteville Street North Carolina Department of Transportation Highway Stormwater Program STORMWATER MANAGEMENT PLAN FOR NCDOT PROJECTS Project Type: NCDOT Hydraulics Unit Address: General Project Information B-5345 WBS Element: Bridge ReplacementWBS Element: Kimley-Horn & AssociatesNCDOT Contact: 919-707-6714 Suite 600 Raleigh, NC 27601 Contractor / Designer: 919-677-2153 crlewis2@ncdot.gov Raleigh, NC 27610 Address: 5/11/2016 GuilfordGreensboro Christopher Lewis, PE 1020 Birch Ridge Drive River Basin(s): City/Town: 0.6 Typical Cross Section Description: Surrounding Land Use: General Project Narrative: (Description of Minimization of Water Quality Impacts) No Rural Brush Creek 16-11-4-(1) 0.4 0.14 miles Project Description Proposed Project Cape Fear Supplemental Classification:Nutrient Sensitive Waters (NSW) Wetlands within Project Limits? (Version 2.05; Released April 2016) North Carolina Department of Transportation Highway Stormwater Program STORMWATER MANAGEMENT PLAN FOR NCDOT PROJECTS WBS Element:46059.1.1 TIP No.:B-5345 County(ies):Guilford Page 2 of 3 Aquatic T&E Species?No Comments: No No No WBS Element: Surface Water Body (2): Buffer Rules in Effect:Jordan Lake Additional Waterbody Information Unnamed Tributary to Brush Creek NCDWR Stream Index No.:N/A Nutrient Sensitive Waters (NSW) NRTR Stream ID: Water Supply III (WS-III)Primary Classification:NCDWR Surface Water Classification for Water Body Supplemental Classification: SB Other Stream Classification: Impairments:None Project Includes Bridge Spanning Water Body?Deck Drains Discharge Over Buffer?Dissipator Pads Provided in Buffer?N/A (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) Deck Drains Discharge Over Water Body? (Version 2.05; Released April 2016) 46059.1.1 TIP No.:B-5345 County(ies):Guilford Page 3 of 3 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? -L- 13+56 RT -L- 16+47.50 RT North Carolina Department of Transportation Highway Stormwater Program STORMWATER MANAGEMENT PLAN FOR NCDOT PROJECTS Additional Comments No(1)Brush Creek Swales Yes1.90.7 71 1.80.0 3.0 3.0 3174 1.4 WBS Element: 1.70.80% 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 13+58.93 to 13+82.90 -LDET- (LT)Causeway #1 0.02 48 1 13+78.26 to 13+99.59 -LDET- (LT)Causeway #2 0.02 52 1 13+87.72 to 13+95.59 -LDET- (RT)Bank Stabilization < 0.01 < 0.01 16 10 1 16+42.72 to 16+57.92 -L- (RT)Bank Stabilization < 0.01 < 0.01 21 10 2 10+94.99 to 13+01.81 -LDET- (RT)Roadway Embankment 0.08 < 0.01 3 14+34.69 to 15+08.65 -LDET- (RT)Roadway Embankment 0.10 0.03 4 15+80.00 to 16+25.36 -L- (LT)Clearing 0.01 5 17+10.34 to 17+38.67 -L- (LT)Clearing < 0.01 TOTALS*:0.18 0.05 < 0.01 0.04 37 120 0 *Rounded totals are sum of actual impacts NOTES: Revised 2013 10 24 SHEET 15 of 15 11/8/2016 * Total Permanent Channel Impacts along the centerline of Brush Creek is 37 linear feet. ** Total Temporary Channel Impacts along the centerline of Brush Creek is 72 linear feet. *** Causeway #1 blocks more than 50% of the channel. Therefore, 1 @ 30" temporary pipe to be installed with causeway to help convey the average daily flow. **** Causeways #1 and #2 should not be in place at the same time. There is an overlap in impact area between the causeways. However, the Total Temporary Surface Water Impacts remain 0.04 acres due to the minimal overlap area. WETLAND PERMIT IMPACT SUMMARY WETLAND IMPACTS SURFACE WATER IMPACTS GUILFORD COUNTY B-5345 NC DEPARTMENT OF TRANSPORTATION DIVISION OF HIGHWAYS