20220882 Ver 1_Bridge 100536 Buncombe permit drawings_20220629

SHEET 5 OF 6
PERMIT DRAWING
P:\2021\21375.01_EXDB_DIV13E\Bridge 100536\Hydraulics\PERMITS_Environmental\Drawings\100536_hyd_prm_pfl along culvert.dgn5/20/2022SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
ENGINEER
BRIDGE #100536
ENGINEERING
ETHERILLW Raleigh, N.C. 27606
Bus: 919 851 8077
Fax: [phone]
CIVIL/SITE DESIGN - GIS/GPS - CONSTRUCTION OBSERVATION
TRANSPORTATION PLANNING/DESIGN - BRIDGE/STRUCTURE DESIGN
1223 Jones Franklin Rd.
License No. F-0377
B-6018
USER: KAlfordHYDRAULIC DESIGN
PROFILE ALONG STRUCTUREUSGS STREAMSTATS (QUAD VERIFIED)1 @ 30’ TIMBER FLOOR ON I-BEAMS WITH VERTICAL ABUTMENTSPROPOSED ROADWAY
2:1 NORMAL
EXISTING BRIDGE
PROPOSED 100 YR. ELEV. = 2146.9’
PROPOSED 10 YR. ELEV. = 2144.5’
NORMAL WS EL. 2140.8’
ELEV. 2139.3 (7-27-2021)
DATE OF SURVEY
WATER SURFACE
50’ LT100’ LT 100’ RT50’ RTCL
TB/NG LT
TB/NG RT
TB/NG RT
TB/NG LT
2150
2140
2130
PROFILE ALONG STRUCTURE
EXCAVATE
(SEE TYPICAL)
SILLS (SEE TYPICAL)
SILLS
o
ON 1.10% GRADE
INV. EL. 2136.6’
CROWN GRADE ELEV. 2145.91
77 30’ SKEW
3 @ 14’ x 6’ RCBC
CL STA. 13+60 -LREV-
HandExisting 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 StreamNo. (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) -LREV- 13+44 to 13+69 3 @ 14' x 6' RCBC < 0.01 43 -LREV- 13+26 to 13+80 Rip-Rap Impacts 0.02 89 -LREV- 13+26 to 13+48 LT Parallel Stream Impacts < 0.01 24 -LREV- 13+04 to 13+16 LT Parallel Stream Impacts < 0.01 12 -LREV- 13+16 to 13+86 Impervious Dike Impacts < 0.01 20 TOTALS*: 0.03 < 0.01 156 32 0*Rounded totals are sum of actual impactsNOTES:Revised 2013 10 24SHEET 6OF 6 WETLAND PERMIT IMPACT SUMMARYWETLAND IMPACTS SURFACE WATER IMPACTSBuncombe County5/20/2022 NC DEPARTMENT OF TRANSPORTATIONDIVISION OF HIGHWAYSB-6018Permanent Impacts Culvert = 0.0076 acPermanent Impacts Parallel Stream = 0.0020 acTemporary Impacts Impervious Dike = 0.0021 acTemporary Impacts Parallel Stream = 0.0007 acPermanent Impacts Rip-Rap Impacts = 0.0160 ac
(Version 3.00; Released August 2021)48210.3.1TIP/Proj No:B-6018 County(ies):Buncombe Page 1 of 3TIP Number:Date:Phone:Phone:Email:Email:County(ies):CAMA County?NoDesign/Future: Year: Existing: Year:City/Town:0.2Typical Cross Section Description: Surrounding Land Use: NoWetlands within Project Limits?0.10.07Project DescriptionProposed ProjectFrench BroadRiver Basin(s): Roger BryanAsheville, NC 28801WBS Element:Bridge ReplacementWBS Element:WEI/J. L. Lindsey, PENCDOT Contact:828-250-3005Raleigh, NC 27606Contractor / Designer:919-851-80771223 Jones Franklin [e-mail], NC 28801Project Built-Upon Area (ac.)430Variable 9' to 11' pavement left lane, 9' pavement rt. Lane with 4' paved shoulder in front of guard rail. 3' grassed shoulders on each side. [e-mail] Avg Daily Traffic (veh/hr/day):Existing SiteProject Length (lin. miles or feet): ac.ac.North Carolina Department of TransportationHighway Stormwater Program STORMWATER MANAGEMENT PLAN FOR NCDOT PROJECTSProject Type:55 Orange StreetAddress:General Project InformationB-6018 48210.3.1Address:1/31/202216' total pavement width, with 2' grassed shoulder each side.N/AAlignment shifted so as not to impact juridictional stream in SouthWest quadrant. Stormwater from pavement will flow over grassed shoulders. Proposed roadway ditches have a 4:1 front slope and a 2:1 or flatter backslope.General Project Narrative:(Description of Minimization of Water Quality Impacts)
(Version 3.00; Released August 2021)
48210.3.1 TIP/Proj No.:B-6018 DRAFT County(ies):Buncombe Page 2 of 3
Aquatic T&E Species?Comments:
No N/A
N/A
Aquatic T&E Species?Comments:
Aquatic T&E Species?Comments:
North Carolina Department of Transportation
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
FOR NCDOT PROJECTS
WBS Element:
Supplemental Classification:
Surface Water Body (2):
Deck Drains Discharge Over Water Body?(If yes, provide justification in the General Project Narrative)
NRTR Stream ID:N/A
Surface Water Body (1): Newfound Creek NCDWR Stream Index No.:6-84b
General Project Information
Supplemental Classification:
Waterbody Information
NCDWR Surface Water Classification for Water Body
NRTR Stream ID:Buffer Rules in Effect:
NRTR Stream ID:
Other Stream Classification:
Impairments:
Project Includes Bridge Spanning Water Body?Deck Drains Discharge Over Buffer?Dissipator Pads Provided in Buffer?
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)
Impairments:
Primary Classification: Class C
(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)
NRTR not provided Buffer Rules in Effect:
Project Includes Bridge Spanning Water Body?Deck Drains Discharge Over Buffer?Dissipator Pads Provided in Buffer?No
Impairments:fecal coliform mercury (Hg)
Other Stream Classification:
Supplemental Classification:
NCDWR Surface Water Classification for Water Body Primary Classification:
Other Stream Classification:
Surface Water Body (3): NCDWR Stream Index No.:
Buffer Rules in Effect:
Project Includes Bridge Spanning Water Body?Deck Drains Discharge Over Buffer?Dissipator Pads Provided in Buffer?
NCDWR Stream Index No.:
NCDWR Surface Water Classification for Water Body Primary Classification:
(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 3.00; Released August 2021)
48210.3.1 TIP/Proj No.:B-6018 DRAFTCounty(ies):Buncombe Page 3 of 3
Sheet No.:4 Station:13+60 Lrev
Barrel Height (ft):
Culvert Length (ft)
%
%
Natural Stream Channel 2-yr Velocity (ft/s):4.8
Outlet Velocities
Evaluate/Describe Roadway Geometric Constraints:
Horzontal alignment had to be shifted downstream to avoid impact to JS located parallel to road in Southwest quadrant. Vertical grade had to take into account not raising the FEMA 100 year
flood elevations.
Proposed Culvert 2-yr Outlet Velocity (ft/s):2.7
Natural Stream Channel 10-yr Velocity (ft/s):6.4
Proposed Culvert 10-yr Outlet Velocity (ft/s):6.3
Roadway Geometric Considerations
Stream Realignment Necessary? (provide
justification)
Yes There are slight bends at the inlet and outlet of the stream for the existing bridge. The proposed culvert is skewed to minimize
channel work.
Bank Stabilization:Class I Rip Rap both sides of the stream banks approximately 48' upsstream and 41 feet downstream.
Stream Patterns Upstream and Downstream
of the Culvert that Could Affect Fish
Passage and Bank Stability:
NA
Bed Forms Impacted by Culvert (riffles,
pools, glides, etc.):
none
Bends at Inlet/Outlet?
(describe culvert alignment with stream)
Yes There are slight bends at the inlet and outlet of the stream for the existing bridge. The proposed culvert is skewed to minimize
channel work.
Existing Streambed Material:sand and rock
Low Flow Floodplain Bench Required?
(provide justification)
Yes benches required in outside barrels to provide low flow channel. 3 @ 14' x 6' required hydraulically to provide 10 year level of
service and meet FEMA requirements.
14' width and 1' depth.
Proposed Sills/Baffles:1' sill center barrel, 2' sill outside barrels. One
upstream and 1 downstream.Existing Low Flow Velocities in the
Stream (ft/s):2.1
Proposed Low Flow Velocities Through
the Culvert (ft/s):1.8
Alternating Low Flow Sills/Baffles:none
Proposed Low Flow Dimensions
Through the Culvert:
Culvert/Stream Alignment
Avoidance and Minimization Efforts:
(Bridge to Culvert)
Roadway slopes 2:1 to minimize culvert length. Sills provided for a low flow channel. Roadway alignment shifted downstream to avoid impact to
JS in SouthWest quadrant.
Stream Slope Fish and/or Aquatic Life Passage
Existing Average Stream Slope (%):1.10 Existing Low Flow Channel Dimensions
in the Stream:
Approximately 8' base and 1' depth up and
downstream. Approximately 18' beneath the
bridge.
Proposed Culvert Slope (%):1.10
Culvert Burial
Proposed Culvert Burial Depth (ft):1
Surface Water Body:Newfound Creek
43Culvert Type:Reinforced Concrete Box Culvert
6
Proposed Structure Summary
Sheet No. & Station
Drainage Area (ac or sq mi):6.6 sm
Number of Barrels:3
Barrel Width/Diameter (ft):14
Bridge to Culvert Avoidance and Minimization
North Carolina Department of Transportation
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
FOR NCDOT PROJECTS
WBS Element: