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Home My WebLink About20170329 Ver 1_Bridge 100433 Buncombe Plans_20170322�� ,4�y North Carolina Department of Transportation SG[�Y�llW2t�r . I � ,,.,.,,.,, Highway Stormwater Program ��.� STORMWATER MANAGEMENT PLAN (Version 2.04; Released November 2015) FOR NCDOT PROJECTS WBS Element: 17BP.13.R.6 TIP No.: County(ies): Buncombe Page 1 of 1 General Project Information WBS Element: 17BP.13.R.6 TIP Number: Project Type: Bridge Replacement Date: 12/11/2015 NCDOT Contact: Bill Zerman, PE Contractor I Designer: Sungate Design Group, P.A. Address: NCDOT Hydraulics Unit Address: g15 Jones Franklin Road 1590 Mail Service Center Raleigh, NC 27606 Ralei h, NC 27699-1590 Phone: 919 707-6755 Phone: 919 859-2243 Email: bzerman ncdot. ov Email: bsmith sun atedesi n.com Cit ITown: Candler, NC Count ies : Buncombe River Basin s: French Broad CAMA County? No Wetlands within Project Limits? No Pro'ect Description Pro'ect Len th lin. miles or feet : 0.033 Miles Surroundin Land Use: Rural Residential, Agricultural Proposed Pro'ect Existin Site Pro'ect Buiit-Upon Area ac. 0.1 ac. 0.1 ac. Typical Cross Section Description: 2-10' paved lanes 2-9' paved lanes Annual Avg Daily Traffic (veh/hr/day): Design/Future: 480 Year: 2009 Existin : 480 Year: 2009 General Project Narrative: This project involves the replacement of Bridge No. 100433 over Glady Fork on SR 3464 (Black Oak Cove Road) in Buncombe County, NC with a 16'-6"x6'-8" aluminum box (Description of Minimization of Water culvert. This bridge replacement and the associated roadway improvements have been designed in a manner that minimizes the increase in impervious surface area. The Quality Impacts) culvert will have a sill and floodplain bench installed that will promote a low flow channel within the culvert during normal flow conditions. A proposed lateral ditch in the northeast quadrant of the proposed culvert will collect and convey stormwater runoff from the road surface to a 15" pipe, which will outlet onto a rip rap pad and into Glady Fork downstream of the culvert. The proposed ditch will be lined with Permanent Soil Reinforcement Matting to prevent erosion of the ditch channel. Waterbody Information Surface Water Body (1): Glady Fork NCDWR Stream Index No.: 6-76-5-5 NCDWR Surface Water Classification for Water Body Primary Classification: Class C Supplemental Classification: Trout Waters (Tr) Other Stream Classification: None Impairments: None Aquatic T&E Species? No Comments: NRTR Stream ID: N/A Buffer Rules in Effect: N/A Project Includes Bridge Spanning Water Body? No Deck Drains Discharge Over Buffer? N/A Dissipator Pads Provided in Buffer? N/A Deck Drains Discharge Over Water Body? N/A (If yes, provide justification in the General Project Narrative) (If yes, describe in the General Project Narrative; if no, justify in the (If yes, provide justification in the General Project Narrative) General Project Narrative) E-]j�sj��ti��y North Carolina Department of Transportation � � St�rtll�vrdter I �..,.,,, Highway Stormwater Program ��' STORMWATER MANAGEMENT PLAN -- (Version 2.04; Released November 2015) FOR NCDOT PROJECTS WBS Element: 17BP.13.R.6 TIP No.: County(ies): Buncombe Page 2 of 2 Bridge to Culvert Avoidance and Minimization Proposed Structure Summary Sheet No. & Station Sheet No.: 4 Station: 12+26 -L- Number of Barrels: 1 Drainage Area (ac or sq mi): 2.9 Sq. Miles Barrel Width/Diameter (ft): 16'-6" Surface Water Body: Glad Fork Barrel Height (ft : 6'-8" Culvert T e: Aluminum Box Culvert Culvert Length (ft 60 Avoidance and Minimization Efforts: The proposed culvert will be buried 1.0' with low- and high-flow sills, baffles, and a floodplain bench to retain bed material and promote a low flow (Bridge to Culvert) channel that maintains the dimensions and velocities of the existing low flow channel as closely as possible. The culvert approximates the existing bed slope and provides a smooth transition from upstream to downstream. Stream Slope Fish and/or Aquatic Life Passage Existing Average Stream Slope (°/a): 1.80 % Existing Low Flow Channel Dimensions 9.7' wide Proposed Culvert Slope (%): 1.36 % in the Stream: 0.7' deep Culvert Burial Proposed Culvert Burial Depth (ft): 1 Existing Streambed Material: Sand, cobbles, and boulders Proposed Low Flow Dimensions 9.0' wide Through the Culvert: 0.5' deep Proposed Sills/Baffles: The proposed culvert will have 1.0' sills across 9.0' of the culvert opening and 1.5' sills across the remaining Existing Low Flow Velocities in the 7.5' of the culvert opening in the inlet, outlet, and Stream (ft/s): �'� middle of the culvert. The low and high sills will ropose ow ow e oci ies roug alternate in the middle of the culvert to promote a the Culvert (fUs): 1.3 meander in the low flow channel. Alternating Low Flow Sills/Baffles: The proposed culvert will have alternating sills and baffles to provide a low flow channel that approximates the existing low flow channel Culvert/Stream Alignment Stream Patterns Upstream and Downstream The stream is relatively straight approaching and leaving the crossing with minor bends at the inlet and oulet of the proposed culvert. The stream of the Culvert that Could Affect Fish contains long riffles and several small steps in the area of the project. Passage and Bank Stability: Bed Forms Impacted by Culvert (riffles, The proposed culvert is located in a section of the stream that currently features a long riffle. pools, glides, etc.): Low Flow Floodplain Bench Required? Yes A floodplain bench is necessary to provide the low-flow channel geometry necessary to approximate the existing stream as well as (provide justification) adequately pass high flow events without increasing water surface elevations upstream of the culvert. Sharp Bends at Inlet/Outlet? No There are gradual bends at the inlet and outlet of the proposed culvert, and the proposed culvert is better aligned with the channel (describe culvert alignment with stream) than the existing bridge which will allow the inlet bend to be smoothed further. Stream Realignment Necessary? (provide No N/A justification) Bank Stabilization: Class I rip rap has been specified for the banks upstream and downstream of the proposed culvert to provide bank stabilization. Outlet Velocities Natural Stream Channel 2-yr Velocity (ft/s): 7.3 Natural Stream Channel 10-yr Velocity (ft/s): 9.6 Proposed Culvert 2-yr Outlet Velocity (ft/s): 7.3 Proposed Culvert 10-yr Outlet Velocity (ft/s): 10.3 Roadway Geometric Considerations Evaluate/Describe Roadway Geometric Constraints: N/A � GRAPHIC SCALES 20 10 0 20 40 PLANS 20 10 0 20 40 PROFILE (HORIZONTAL) 4 2 0 4 8 DESIGN DATA ADT 2009 = 480 DHV = % � _ % T = 6 % * V = 60 MPH * (TTST =3% + DUAL ; FUNC CLASS = LOCAL �� 1L � �� `�/�� %�� IF �1��II��1�5 B U1�COMBE CO U1�lTY LOCATI011I: BRIDGE 11r0.100433 OVER GLADY FORK CREEK 01V SR 3464 TYPE OF WORK: GRADI11lG, DRAl11tAGE, A111D PAVI11lG WETLAND AND SURFACE WATER IMPACTS PERMIT TO UPPER GLADY FORK RD. E GLA REE�RK f,5 JS — F 15�� -15 —L— SR 3464 � COVE RDAK -L- STA ll +30.OG BEGIN PROJECT l7BP.l3.R.6 PROJECT LENGTH LENGTH OF ROADWAY PROJECT 17BP.13.R.6 = 0.033 MILES -L- STA l3 + O5. 00 E111D PROJECT I7BP.I3.R.6 —,5— _15- Prepored for fhe North Corollrto Deportmenl PARSONS of Tronsportotion in the office of: SSaO Canterv�aw Dri�e RnLEiGN, NORiH CnROLiNn _ ,.?,��,_ .,.,._,. 2012 ST9NDARD SPEClFICAT/ONS RIGHT OF WAY DATE: LETTING DATE: NCDOT CONTACT: EDWARD S. ROBBINS, PE PROJECT ET'GINEER DAVID GARRETT PROJECT DES7GN ENGINEER BRENDA L. MOORE, PE XOADWAY DESlGN: ENGlNEEXING COORDINATION SECTION ENGINEER 9TAT6 9TATE PROJECT RBPERENC6 NO. 1�� 17BP.13.R.6 9TAT¢ PR01.N0. P.A.PROI.NO. HI'DRAULICS ENGINEER ROADWAY DESIGN ENGINEER PB. PERMIT DRAWING SHEET 1 OF 6 98�` 80 �'N s� OF�9CIUPlYON PE PFt]EY,IMINARY FL.�NS DO NOT USE FOR CONSTRUCTION DENOTES IMPACTS IN SURFACE WATER DENOTES TEMPORARY IMPACTS IN SURFACE WATER ELLIOTT AMANDA NICOLE � _ - f JS- ��5--- ��ady Fork Creek = �S EXISTING R/W ��--" F _ F"_ `` "U N � ,, SR 3464 BLACK OAK COVE ROAD l8' BST -�1- - `` — I J � EXISTING R/W TYPICAL INLET & OUTLET CHANNEL (NTS) VARI ES CL 'I' RIP RAP � ?� ry� � VARIES CL 'I' RIP CLASS 'I' RIP RAP EST 42 TONS FLOODPLAIN BENCH CLASS 'B' RI P RAP AT PIPE OUT ET i i GR DRIV E. i , i i i i �i i � � , � ' � � E � � , , I - �� , A � � i � �F �� T�� E � i i , �•� l-.: I I 1�i �� i --t �F �,' ! �/�---� � REMOVE \ ��4-�-- \ F � i �`� � �� F � � `. . � j ;> E ' > �� '��-: � I � �� < I I �0�� , , . . . 16'-b"xb'-8" ABC W/SILLS �� F� �� CLASS 'I' RIP RAP _ � � EST 50 TONS JAMES ALLEN TRULL ALL.EN KELLY TRULL PROIECT REFERENCE NO. SHEET NO. l7BPJ3.Rb 04 RNJ SHEET NO. ROADWAY DESIGN HYDRAUUCS ENGINEER ENGINEER PERMIT DRAWING SHEET 2 OF 6 KATHY KANUPP SPEC LATERAL — V-DITCH W/PSRM SEE DETAIL 1 / / 12" CMP _ — -- - / — -- � �F-- '� // � � � � SR 3464 BLACK OAK COVE ROAD l8' BST � i / — �� _ _ — FLOODPLAIN BENGH ✓S � S �io�� d _�_Cree—JS— �JS SHED DENOTES IMPACTS IN SURFACE WATER DENOTES TEMPORARY IMPACTS IN SURFACE WATER � � ELLIOT� AMANDA NI�OLE I � / ' / 1 ' � � �� — � ��- ''--- --------� �� .1 _� �_ � --- __ -,�- __ _ , -__- --- ,�__ - -�-�Js— � _ '�� - � � �� E � � Glady Fork Cree� �� ,�� , �r �'�TiNc g�w ,�—�--�- _ _, - � \ --� - _ � — —� -- -- _ - �,— a/ ih � _ _ � �_ � "� - --- =l / � _._ U� i�i �� _ _ _ �, �i — �� ' - � � �� _�� I�T- -- __/ I ; , - CLASS 'I' RIP RAP EST 42 TONS � E � FLOODPLAIN BENCH CLASS 'B' I — RI P RAP AT PIPE OUT ET i ,� �R DRIV E . � � ,✓ i li i �� i i ', � ' %� i �� ;',� � � � , , -;�-TD � � ' � � �h . BST �� , , . — E ROAD`l8 - - __ - �-` �/` �R 3464 BLACK OAK COV - - _ , � - — _ ��, y. � �� — �,; � � �i � ' � � � � � - � � �y � � � �s � � � /� `. / - >> �—� �� i �,- �� —/ s i�- Ri� / E ; �� ;, �� Exi , �� _ � � � � �— �� i �� ' ' '�� 1 / �- / / � ��,� �� ; a �� '�Ot� i / � � / / �i j; ��%�/ �\� �,�. � / / / � � � � � � ��4� 9 �J R�P\' R ,, ,/ / �� _ �'� ��S�'�5 �TIO 16' 'b "xb'-8'�Be" _ W/SILLS TYPICAL INLET & OUTLET CHANNEL (NTS) VARI ES CL 'I' RIP RAP � ?� ry� � VARIES CL 'I' RIP JAMES ALLEN TRULL ALL.EN KELLY TRULL , p' S�. KATHY KANUPP PROIECT REFERENCE NO. SHEET NO. l7BPJ3.Rb 04 RNJ SHEET NO. ROADWAY DESIGN HYDRAUUCS ENGINEER ENGINEER PERMIT DRAWING SHEET 3 OF 6 �� . � � `�� \ � �� PE��LATERAL � � ��ITCH W/PSRM � �SEE �t�E�L 1 � � , ,A � � / � � � � � 12� Cf�� , .-- —� � - � — �� - � , � � \'�� / � � _ � �= � - / � — � - - - � % i -- - � - _ - - / �AK COVE ROAD lfl' BST �- / ' � �/l/ � �R 3464 BLACK �� = � „''-'`— \ — �E��3 --__- �` �� _ = — - � , � - =� � � ' -- - � I � __- �,-� , rK �� ,'�� , . �� ; �,, A � � � � �,� � � � �� , \� �� __ � � ,�� ✓ �\ \\�`G/ody ° �� __ ` , `'. r \ \ � �_ r � � - �/r .�$ \ - ��,�� \ ` �� — �� _�, �_ —�JS ��, _��— � `� � \�_ _ � �= ; � � �— — �; ,� �_ ��1�� _ H�� ,, � ,�l � \ � \ ��_� i� li � � ; III�III` _ � � ,l ��/��,�� — - ��;; � „)�,�, , �,...,,/' 24 0 ?400 2�80 2:1 (NORMAL) OR FLATTER � � _ � � _ ,�-- EXISTING TB RT _ -_-- - - - - - EXISTING TB LT 200 o��NSTREAM 00 C� J I Q 12=259� -I_- C� GRQDE E�EV=2400075 �,_C"xC'-8" QBC W/ SII I S SKEW=44° INV ELEV=2391.33 SLOPE = 0.0136 FT/FT 0 �EXISTING TB LT � -_ � EXISTING TB RT� - - �� - � �� EXISTING BED WSE ON 1-18-12 = 2393.7 0� �P�T�EA� �00 WETLAND PERMIT IMPACT SUMMARY WETLANDIMPACTS S R ACE ATERIMPACTS Hand Existing Existing Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural Site Station Structure Fillln Fillln 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) 11+58 TO 12+g7 -L- STREAMBANK STABILIZATIO < 0.01 41 CULVERT 0.01 62 STREAMBANK STABILIZATIO < 0.01 32 TEMPORARY DEWATERING 0.04 170 TOTALS*: 0.03 0.04 135 170 0 "Rounded totals are sum of actual impacts NOTES: Revised 3/12/13