20181318 Ver 1_(W-5601R)_HYD_SMPv2.03_(20151102) (Oct 2015)_9/28/2018 2:12 PM

(Version 2.03; Released October 2015)50138.1.FR19TIP No.:W-5601RCounty(ies):Gaston Page 1 of 2TIP Number:Date:Phone:Phone:Email:Email:County(ies):CAMA County?Design/Future: Year:2038Existing: Year:Aquatic T&E Species?NoComments:No N/AN/AN/ADeck 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.The roadway existing typical section is two (2) 10' lanes with 4' grass [e-mail] 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 SiteProject Length (lin. miles or feet): ac.Surface Water Body (1): Class CNCDWR Surface Water Classification for Water BodyBuffer Rules in Effect:None3450The roadway typical consist of two (2) 12' lanes with a 8' grass shoulders.Waterbody Information2018NCDWR Stream Index No.:50138.1.FR19Impairments:Other Stream Classification: Primary Classification: Project Built-Upon Area (ac.)The project W-5601R is a roadway relocation with some widening. We have added some shoulder berm gutter, as well as some base ditches to this project trying to be good stewards of the environment. Some of the base ditches have been widened to help reduce velocities. This project also has a preform scour hole that has been place at the outlet of an outfall pipe to prevent the pollutants from entering a near by creek. The additional 8' of grassed shoulder will facilitate the removal of pollutants from the proposed roadway. SH A Hazardous Spill Basin has not been designed for this project for the following reasons. NC 274 in this section of roaway is classified as a collector, not an arterial. The traffic volumes are low, project to be only 3,600 vpd in the design year of 2038. The truck percentage for this project is 2%. Once the project is complete, the geometry will improved greatly, reducing the likelyhood of accidents. The distance to the WSII area is 0.4 miles which is only 500 feet from being outside the requirement for a roadway with a much higher classification. BKS 1020 Birch Ridge DriveNorth Carolina Department of TransportationHighway Stormwater Program STORMWATER MANAGEMENT PLAN FOR NCDOT PROJECTSProject Type:1710 E. Marion StreetAddress:General Project InformationW-5601RWBS Element:Roadway RelocationWBS Element:Shawn HarrisNCDOT Contact:980-552-4221Raleigh, NC 27610Contractor / Designer:(919) [e-mail]:11/2/2015GastonBessemer CityBryan K. Sowell, PE or current Hydraulics Engineer for RegionShelby, NC 28150River Basin(s): City/Town:4.6Typical Cross Section Description: Surrounding Land Use: General Project Narrative:(Description of Minimization of Water Quality Impacts)NoRural farm land11-129-16-(4)3.2No0.97 mi.Project DescriptionProposed ProjectCatawbaNoneSupplemental Classification: Wetlands within Project Limits?
(Version 2.03; Released October 2015)TIP No.:W-5601RCounty(ies):Gaston Page 2 of2Sheet No.Station & Coordinates (Road and Non Road Projects)Surface Water Body Riprap TypeDrainage Area(ac)Conveyance Structure17+00 -L- (Rt.)Preformed Scour Holes and Energy Dissipators4.0WBS Element:4Highway Stormwater ProgramAdditional CommentsNorth Carolina Department of TransportationV10(fps)Energy Dissipator TypeSTORMWATER MANAGEMENT PLANFOR NCDOT PROJECTSBMP Associated w/ Buffer Rules?Pipe0.2Q10(cfs)Pipe/Structure Dimensions(in)2.3 N/A15* Refer to the NCDOT Best Management Practices Toolbox (2014), NCDOT Standards, the Federal Highway Administration (FHWA) Hydraulic Engineering Circular No. 14 (HEC-14), Third Edition, Hydraulic Design of Energy Dissipators for Culverts and Channels (July 2006), as applicable, for design guidance and criteria.