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Home My WebLink About20181664 Ver 1_040023_final permit drawings_20181207Lat: 36.499268. Lonq: -81.511162 � . � -� �� ,�. � 4 4 �� 4` ��4 �� . kJ ' � �� . .�� ' . �. ,:,' _ , � � � .; . - x . . � ' 4 ,k , .�� 1� .. �`� � . �. ..�t. � �..'i ' . . +�} •.} . +'y . � - �� -ti. � � , � � J' � ti �' . �' .f t` �ry Trout Streams�'� . _ -�r , �* � ,• � � �f - ��*� ..•.� ��1s , rf� 5r ' • } �' ,.,� � . �Y � - , Y};V� +,,, � • 4 ,,,. { . � � � . �.,4 -� •� : .; . ; � '�� .' * :. , � ' r. �= '� . � ' r:;, � •. # � �i "�4 'f* � , � �- - i 4 , , . �. � � � , . � � � y }. r / 5 . O .;��.�, �'� .�� . • � � " a�� ' � .� : y.� � '� � � ! �ti o� �y �� ..,� . .:� , �. r �.� �•�i ,� 1 ' � � � ��'�r �� C'� y�� 4 ,i� � � - f }'��r~ ' `- � , 7� ��F �* �S � . � t�� .-'� ,�� .� �C. ; `�` �• .. � �''�� ' • � r�.*-.�. �;�' •� � � •w. �. ' �• . � � �� ASHE CRESTON WEST 194 16 CRUMPLER I LANSING 221 WARRENSVILLE � JEFFERSON � � N (N.T.S.) � � �� . �'# � � � , . ��. �r �� Y - � r� e. �� - ��. ��i f. � '� � � � � �� A��, . �r��c��►��ii ��+�� . . rr�t'�rti'./,i,��''��c��+i ��'.��?w► �� r� • ��,i • � • . • � 1�11 • • WETLAND AND SURACE WATER IMPACTS SUMMARY 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) -L- 12+42 LT Bank Stabilization 46 -L- 12+25 to 12+58 3@ 10' X 9' 58 -L- 12+43 RT Bank Stabilization 30 TOTALS*: 134 0 0 *Rounded totals are sum of actual impacts NOTES: Existing Bridge is a single span at 33.5' and 22.5' out-out. Proposed 3@ 10' X 9' RCBC is approximately 58 LF with a slope of 3.50%. 1 tree will be cleared as a result of the proposed improvements. 2018 Feb ��) - . . .�� . .�� I � \ , BR/DGE N0.:040023 DET AlL C OUTLET CHANNEL /MPROVEMENTS LOOKING DOWNSTRE,4til !Nd �o ScoieJ oErAi� A RlP RAP EMBANKtiIENT dya �o scoie� NG �-- l0' min, l' min, GEOTE,. , ,�� LlIyER Type of Line� = CL ll R/P RAP = 300 TOlyS Geotextile = 400 SY F/LL (TYP.) FROtiI STA 12+20 TO STA.l2f63 LT FROti1 ST A. 12+26 T 0 ST A. l2 f58 RT � � • • - �� r . , , � DET AlL B INLET CHANNEL /MPROVEMENTS LOOKING DO►HNSTREAti1 fNa to ScoieJ ExcAVArioN ITYP.I NG�--- W�N�vV,�� L00 LAI�I BENCH y�/ R/P I�AP CLASS // (TYP.) l' BEL� STREAtiIBED fTY J BASE l0' CROSS SECT/ONAL V�EW RlP RAP CLASS ll W/ GEOTEXTILE FABR/C fTYP.J OF�GEOTEXT LEU�NER QM PORTION N� = FLOODPLAIN BENCH � y�� lP RAP CLASS ll l' m1n. (T �Qy�l GEOTEXTILE LINER F/LL W/ NATIVE MATER/AL EXCAVATION (TYP.) l' SILL FLOODPLAIN BENCH PROF/LE V/EW y�INGW ALL FLOODPLAI�I BENCH y�/ R/P I�AP CLASS ll fTYP.) l' BELO� STREAti/BED fTYf�.I BASE l0' CROSS SECT/ONAL V�EW RlP RAP CLASS // W/ GEOTEXTILE FABRIC ITYP.J X COUI�T ERSINK UP$T REAtiI PORT lON OF Gt OTEXT/LE LINER x FLOODPLAIN BENCH W/ R/P RAP CLASS ll (TYPJ ExCAVATiON ITYP.1 � NG . , , . � �. . � � � .. FILL fTYP.I W�NcvV,ac� 2:l fTYP.) N� ,� � l' min. FL� EXCAVATION � fTYP.J GEOTEXT/LE LINER F/LL ►�l/ NAT l►/E MAT ER/AL l' SILL FLOODPLAIN BENCH PROF/LE V/EW . . . - ) �, - � . � , . � DET AlL D S/LL S/ZING DETA/L INLET �� ND��OUTLET � x0.5' xS/LL LAYOUT T HROUGH CULVERT PER DETA/L E CROSS SECT IONAL V �EW DET AlL E S/LL LAYOUT DET A/L UPSTREAM TO DOWNSTREAtiI flyol b Sco�eJ � �--- S/Z NG DET �L DLL �--- x�' LONG S/LLS � ---- --- NorE: PLACE SILLS AS SHO►�lN ABOVE. BACKF/LL ALL T HREE BARRELS ►N/T H NAT /VE BED MAT ER/AL SlM/LAR lN S/ZE T 0 CLASS 'B' R/P RAP. SUBSIDIZE W lT H CLASS 'B' RlP RAP lF NEEDED. PLAN VIEW `N� _-,__J` F/LL fTYP.) vV�NcW,ac� 2:l fTYP.1 /' /4' /4' /4' /4' /' . . \ � f�Tl'1rAIIA �AAIV USE N0. 5 OR N0. 57 STONE FOR SEDIMENT CONTROL STONE. PROVIDE STABILIZED OUTLET TO STREAM BANK. WOOD PALLETS MAY BE USED IN LIEU OF STONE AND GEOTEXTILE AS DIRECTED. A SUFFICIENT NUMBER OF PALLETS MUST BE PROVIDED TO ELEVATE THE ENTIRE SPECIAL STILLING BASIN ABOVE NATURAL GROUND. . � � . / , • � . . l � , NOT TO SCALE Z O � H � � Q Q H�(,=�U L.L J � I--I z oo�= °C z � aU��H H cAH�OJ O � U� a Z H � D � H w � � 0 � Z O �..� LL y �a zm H Q v � Z � �..� J � J 0 � z � Q y �- � J Q �"� � C� � W a a � � SHEET 1 OF 1 1630.06 BR/DGE N0.:040023 V V � V L 1.J 1 1�1 L 1 Y 1 V V 1 Y 1 1 l V� v � v �� GEOTEXTILE FOR DRAINAGE NOTES RT TR Tl UL U U I CULVERT PHASE 2 NOTES: CONST RUCT T EMPORARY DIVERSION DIKE AS SHO►�(lN UT lLIZING SAND BAGSe BUILD PARTIAL CULVERTS IBARRELS 2A & 3A� AND ADJACENT DOW /V ST REA�1 W ING. SHIFT T RAFFIC T 0 0/V —SlT E DET OUR AS SHO►�llV ON SHEET T MP —5. BUILD REMAINDER OF CULVERT S(BARRELS 2B & 3BJ AND ADJACENT UPST REAtiI W ING. � ��; �� o� � � � � � � _ � � � � � � z I N � � � (""� r I I N m �m � = m m I I 1I I I I I I I I I L� I I � � � I I I � � . � �HPB HPB HPB HP HPB YOUR VISION ACHIEVED THROUGH OURS. CULVERT PHASE l NOTESe UT lLIZE T RAFFIC CONT ROL AS SHO►�lN 0/V SHEET T�P —4. CO/V ST RUCT T EMPORARY DlV ERSlO/V DIKE AS SHO►�lN UT lLIZING SAND BAGSe BUILD PART lAL CULV ERT �BARREL lA� AND ADJACENT DOW NST REA/I � W ING. — � N m � � � � � � � � �� ^ � IN I Im I I I I I I I I I o; �I � � z n Z I I ` � I I � ^ I � v . I I � . � . Hpg HPB HPB HP -WT°B . � . � � N � �- N � N � � � � I�IPE�EOU� Dl� I � i � I� , I _ _ -� �� C ______ _ ; --� __ 1 / �_ . m � ` � � I _ � ♦ ♦ 1 / . � � � � � _ � N N m I B HPB HPB i i I � I � I �I �r I �N I �m I � � � � � � � , � � � , � � � HP NOTE: �1AlNT AlN 8' HORIZONT AL CLEARANCE FOR T ElI �1 PORARY 11�1 PERV IOUS DIKE l W lT H SAND BAGSJ. CHANNEL T 0 HAVE /I�/Ne 4' DEPT He W HERE EXCAVAT lON lS NECESSARY T 0 MAiNTAiN MiN. CHANNEL Dlti1ENSlONS, GEOT EXT lLE LINER SHALL BE USED T 0 ST ABILIZE EXCAVAT ED BANKe N m B N m HPB ^ N �- -m � � m i � N m m x UT/L/ E SPEC/AL � STI,�[,l�G �ASI� FOR DtWa ER/ G ORK 5/TE. N HPB �- � �_ -___ �- � N / � --�- � m TE�PORARY � I I�IPEI4V/ S D/KE v �' � � , ��, �� @ I � � Z n Z ` t!� I I . I . / 'Y �I ^ N �- - m CV % �- � � m � � - I � I 3B QB i � - � I� - -- _ � � A A i — — I � _—_ 1 / �' —� — - m � � � , � � J ,� / � I� � l�IPE�EO�l�DI� HPB HPB - \� _ � TE�PORARY l�IPERV/ S D/KE _ _ —� � q , — _ ♦ — _ _ _ . � — `� / N `� m , � � � - � � � i m / , / - � CULVERT PHASE 3 NOTES: � � 0 � CONST RUCT T EMPORARY DIVERSION DIKE AS SHOW N � ��Q UTILIZING SAND BAGSe COMPLETE CULVERT IBARREL lB) AND �� ADJACE/V T UPST REAM �lING. PLACE BAFFLES lN BARRELS N o� 2A/2B AND BEDDING /I �AT ERIAL lN BARRELS lA/lB & 2A/2B. �� —o— • UT/L/ZE SPEC/AL � STlI,�IyG �AS/� FOR DEWai ER/ G ORK S/TE. N M � � 1 N N m E�� Timmons Group, Inc. (NC G1652 « 1001 Boulders Pkwy., Suite 300 T I M M O N S G RO U P �g04) 200-6500 Timmons.com N m CULV ERT PHASE 4 NOT ESe CONST RUCT T EMPORARY DIVERSION DIKE AS SHOW N UT lLIZING SAND BAGS. PLACE BEDDING MAT ERIAL lN BARREL 3. PERII�ET ER CO/V T ROLS SHALL BE MA�NT AINED UNT lL SlT E lS ST ABILIZEDtl ^ N �- -m x UT/L/ E SP C/AL STl/,.�l�G �AS� FOR DEWA ER/ G �ryORK 5/TE. N M l�PE�I� D/KE , � N i m N m N m N N m PROJ. REFERENCE NO. SHEET NO. 17BP.11.R.182 EC-5 BR/DGE N0.:040023 ��I� ��v�� ___ _______�- � �_ �PE� �S D/KE - HPB �� lip� H�R� ___ -�- ►l�IORK AREA �EACH PHASE� � E ll�;ll�t'<i�' North Carolina DepartmentofTransportation �� W�� 4l t 11'l 131w`i] Ff' f ... ^`� , . Highway Stormwater Program _ STORMWATER MANAGEMENT PLAN �IHIIE�'i�C � �IF � •••-- (Version 2.07; Released September 2016) FOR NCDOT PROJECTS WBS Element: SF-040023 Pro�. No.:17BP.11.R.182 County(ies): Ashe Page 1 of 1 General Project Information WBS Element: SF-040023 Proj. No.: 17BP.11.R.182 Project Type: Replace Bridge w. Culvert Date: 8/15/18 NCDOT Contact: Marc Shown, PE Contractor / Designer: Blythe Development Co. / Timmons Group, Inc. Address: 1590 Mail Service Center Address: Raleigh, NC 27699-1590 1001 Boulders Parkway, Suite 300 Richmond VA, 23225 Phone: 919-707-6751 Phone: 804-200-6500 Email: mshown@ncdot.gov Email: Nick.Soucie@timmons.com CitylTown: Lansing County(ies): Ashe River Basin(s): New River Basin CAMA County? No Wetlands within Project Limits? No Pro'ect Description Project Length (lin. miles or feet): 0.076 Mi. Surrounding Land Use: Commercial & Town Park Proposed Pro'ect Existin Site Project Built-Upon Area (ac.) 0.60 ac. 0.60 ac. Typical Cross Section Description: Ex. Road: Two 11' lanes with variable aved shoulders, uardrail, and elevated p g Irregularly shaped stream bed, existing steel pedestrian bridges on either side. and timber bridge with two (2) flanking Prop. Road: Two 11' lanes with 2' paved shoulders, curb & gutter, 6' sidewalk, pedestrian bridges. weathered steel rails, and maximum 2:1 fill slopes on either side. Annual Avg Daily Traffic (veh/hr/day): Design/Future: 2,9�� Year: 2016 Existing: Year: General Project Narrative: (Description of Minimization of Water Express Design Build Bridge Replacement Project. Replacement of one bridge (33' long with steel plank floors on I-beams and concrete vertical Quality Impacts) abutments) in the Town of Lansing, Ashe County. Removal of existing bridge and replacement with triple box culvert (3 @ 10' x 9' RCBC). Existing road alignment, typical section, and grade to be maintained - resulting in negligible increase in impervious area and thus negligible water quality/quantity impacts. Opportunities for treatment were utilized to the extent practical within the project constraints. Culvert(s) designed with sills/floodplain benches to maintain buried culvert depths and promote stable crossings with culvert inverts backfilled with native materials. Storm drain outlets were redirected to tie directly into culverts to prevent erosion of the existing stream. Waterbody Information Surface Water Body (1): Old Field Branch NCDWR Stream Index No.: 10-2-21-9 NCDWR Surface Water Classification for Water Body Primary Classification: C Supplemental Classification: HQW, Tr Other Stream Classification: None. Impairments: None. Aquatic T&E Species? None. Comments: NRTR Stream ID: Buffer Rules in Effect: Trout (Tr) Project Includes Bridge Spanning Water Body? No. Deck Drains Discharge Over Buffer? No. Dissipator Pads Provided in Buffer? N/A Deck Drains Discharge Over Water Body? No. (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) D � � m Z � X r I li�;kl11'�!y' North Carolina Department of Transportation � 5tcsr,rnvatc�r 1�]EII��I'][` 1�1E�AW��T� , �� • � Highway Stormwater Program .�" STORMWATER MANAGEMENT PLAN �� •�`�� (Version 2.07; Released September 2016) FOR NCDOT PROJECTS WBS Element: SF-040023 Proj. No.: 17BP.11.R.182 County(ies): Ashe Page of 1 Bridge to Culvert Avoidance and Minimization Proposed Structure Summary Sheet No. & Station Sheet No.: 04 Station: -L- 12+41.50 Number of Barrels: 3 Drainage Area (ac or sq mi): 3.12 sq. mi. Barrel Width/Diameter (ft): 10 ft Surface Water Body: Old Field Branch Barrel Height (ft): 9 ft Culvert T e: 3@ 10' X 9' RCBC Culvert Length (ft) 56 ft Avoidance and Minimization Efforts: Culvert location and size per contract documents. Culvert Avoidance Minimization Design Guidance was used in designing the culverts. New location of (Bridge to Culvert) culvert(s) were designed with sills/floodplain benches to maintain buried culvert depths and promote stable crossings. Culverts are to be backfilled with native materials. Where applicable, storm drain outlets were tied into proposed culverts to prevent erosion of the existing stream. The existing bridge on NC 194 will be removed. Stream Slope Fish and/or Aquatic Life Passage Existing Average Stream Slope (°/a): 3.0 % Existing Low Flow Channel Dimensions Pro osed Culvert Slo e%: 3.5 % Triangular Shaped Stream: P P�) in the Stream: Culvert Burial 0.47 ft depth 6.74 ft top width Proposed Culvert Burial Depth (ft): 0.5 ft countersink Existing Streambed Material: Natural bed material Proposed Low Flow Dimensions Through the Culvert: 10' X 0.5' Proposed Sills/Baffles: 1.0 ft sill on left barrel 0.5 ft sill on center barrel Existing Low Flow Velocities in the 1.0 ft sill on right barrel 0.48 ft/s Stream (ft/s): ropose ow ow e oci ies roug 0.73 ft/s the Culvert (ft/s): Alternating Low Flow Sills/Baffles: None required: 10 ft barrel width matches existing stream. Culvert/Stream Alignment Stream Patterns Upstream and Downstream of the Culvert that Could Affect Fish None Passage and Bank Stability: Bed Forms Impacted by Culvert (riffles, pools, glides, etc.): This appears to be in a riffle section of the stream. Low Flow Floodplain Bench Required? Yes Low Flow Bench provided to ensure passage of aquatic species, specifically (provide justification) within Trout waters. Bends at Inlet/Outlet? Culvert located in generally straight section of stream and therefore passes (describe culvert alignment with stream) None stream in straight channel - no significant bends at inlet and outlet. Stream Realignment Necessary? (provide justification) None Bank Stabilization: Rip rap to be utilized to stabilize the bank upstream and downstream of the proposed culvert(s). Outlet Velocities Natural Stream Channel 2-yr Velocity (ft/s): 0.74 ft/s Natural Stream Channel 10-yr Velocity (ft/s): 5.68 ft/s Proposed Culvert 2-yr Outlet Velocity (ft/s): 0.29 fUs Proposed Culvert 10-yr Outlet Velocity (ft/s): 4.19 ft/s Roadway Geometric Considerations Evaluate/Describe Roadway Geometric Constraints: Roadway geometry per Contract Documents. D � � m Z � X r