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HomeMy WebLinkAbout20170879 Ver 1_NCDOT_Macon Bridge 64_Nationwide Application_20170715Corps Submittal Cover Sheet Please provide the following info: 1. Project Name Bridge 64 (SR 1328 Jim Be .rr�) 2. Name of Property Owner/Applicant: NC Department of Transportation 3. Name of Consultant/Agent: N/A *Agent authorization needs to be attached. 4. Related/Previous Action ID number(s): N/A 5. Site Address: N/A 6. Subdivision Name: N/A 7. City: Franklin 8. County: Macon 9. Lat: 35.2250° N Long: -83.3658° W (Approx. Project Center) 10. Quadrangle Name: Corbin Knob (35083-B3-TF-024� 11. Waterway: Watau�a Creek (C Tr) 12. Watershed: Little Tennessee River (06010202) 13. Requested Action: X Nationwide Permit # 3 General Permit # _ Jurisdictional Determination Request _ Pre-Application Request The following information will be completed by Corps office: Prepare File Folder : � Assign number in ORM Authorization: Section 10 Project Description/ Nature of Activity/ Project Purpose: Site/Waters Name: Keywords: Section 404 Begin Date STATE OF NORTH CAROLINA DEPAR'TMENT OF TRANSPORTATION ROY COOPER GOVERNOR July 15, 2017 Ms. Lori Beckwith, NCDOT Regulatory Project Manager U. S. Army Corps of Engineers 151 Patton Avenue, Room 208 Asheville, NC 28801-2714 JAMES H. TROGDON, III SECRETARY Subject: Nationwide 3 Permit Application Replace Bridge No. 64 on SR 1328 (Jim Berry Road) over Watauga Creek Macon County State Project No. 17BP.14.R.140 (DWQ Minor Permit Fee $240.00) Dear Ms. Beckwith: Please accept this submittal of North Carolina Department of Transportation's (NCDOT) proposal to replace timber bridge no. 64 over Watauga Creek in Macon County. The proposed structure will be a bottomless (3-sided) reinforced concrete box culvert built in the same location. An off-site detour will be used to route traffic during construction. Enclosed are a PCN application, a Biological Assessment (BA), marked plan sheets showing the impact sites, a USGS quad map, photographs, and other pertinent project information to assist in your consideration of this request. Federally-threatened Spotfin Chub (Erimonax monachus) are known to occur in Watauga Creek and this species was confirmed near the bridge in a survey completed in October 2016 for this replacement project. A BA was subsequently prepared (attached). As noted in the BA, due to construction impacts on Spotfin Chub habitat, "...unavoidable adverse effects to this species are expected to occur. These adverse effects are expected to be minor in scope and duration and not expected to affect the long-term viability of this population." Minimization and mitigative measures were incorporated into the project to help conserve Spotfin Chub habitat. The extent of rip rap and tree clearing proposed under the original culvert design was reduced from discussions with USFWS staff. The use of a bottomless culvert should prevent the structure from becoming a iish passage impediment. And, as an added conservation measure to benefit habitat in Watauga Creek, NCDOT installed baffles in a long box culvert upstream of this bridge under Highway 64, which should benefit Spotfin Chub and other fishes that may seasonally ascend Watauga Creek from the Little Tennessee River. Mailing Address: NC DEPARTMENT OF TRANSPORTATION Division 14 253 Webster Road Sylva, North Carolina 28779 Telephone.• (828)586-2141 Fax:(828)586-4043 Customer Service: 1-877-368-4968 Website: www.ncdot.¢ov Location: NC DEPARTMENT OF TRANSPORTATION Division 14 253 Webster Road Sylva, North Carolina 28779 Macon 64 Replacement Page 2 July 15, 2017 Watauga Creek is too small and possibly too cold to support mussels, but federally-listed Appalachian Elktoe (Alasmidonta raveneliana) and Littlewing Pearlymussel (Pegias fabula) mussels have been documented downstream of the bridge in the Little Tennessee River. This reach of the river is critical habitat for these mussels and Spotfin Chub. The construction project will disturb Watauga Creek and cause some downstream sedimentation and turbidity, but the extent of these effects should be localized to near the bridge due to strict erosion control practices. For these reasons, we believe that a"may affect, but not adversely affect" determination should apply to the effects of the project on federally-listed mussels. As noted in the BA, the project should not affect other listed species known to occur in Macon County because either suitable habitats are lacking or individuals or their sign were not observed in surveys of the project area. The bridge is situated in a"red HUC" for Northern Long-eared Bats (Myotis septentrionalis), but the project area is not within 0.25 mile of any known maternity roosts or hibernacula. The project will require removal of about 13 large black walnut and sycamore trees, but with proposed tree clearing in the winter (October 15 to April 15) a determination of "may affect, not likely to adversely affect" for Indiana Bats (Myotis sodalis) is usually applicable. As described in the BA, strict erosion and sedimentation control and other best management practices to limit disturbance will be used to minimize adverse effects of the wark on aquatic habitats. The Erosion Control Plans that will be included in the project contract will include this information. The site inspector will ensure compliance with these practices. This project was reviewed by NCDOT's Human Environment Unit in 2012 and it was determined that histaric resources, either archaeological or architectural, were not present (see attached forms). An architectural survey was done because of a nearby mill site, but the mill is essentially demolished and no longer has the integrity to qualify as eligible. Although resources are not likely present, the original design of the project changed from a cored slab bridge to a bottomless culvert that exceeds the original review area of potential effects, so a re-evaluation is currently underway to re-verify the original determinations. The results will be forwarded to you shortly. Impacts to Waters of the United States Watauga Creek (DWQ Class: C Tr) is shown on the USGS topographic map as a perennial stream. It has a well-deiined channel approximately 15 feet in width with a substrate of gravel, sand, silt, and cobble. Watauga Creek flows about 0.5 mile to the Little Tennessee River. The river meets the definition of a Traditional Navigable Water (TNW). For these reasons, we believe Watauga Creek is a Relatively Permanent Water (RPW) and is under the jurisdiction of the U.S. Army Corps of Engineers. In order to construct the project, it will be necessary to impact waters of the United States in the Little Tennessee River Basin (CU 06010202). Specifically, NCDOT is requesting to replace Bridge No. 64 with a bottomless reinforced concrete box culvert. Listed below is a summary of the proposed impacts: Net Site No. Existing Condition Proposed Condition Impacts (feet) 1 25.5' L Timber on Steel 40' W x 7'H Bottomless � Beam Bridge Reinforced Concrete Box Culvert Macon 64 Replacement Page 3 July 15, 2017 Watauga Creek Channel and Temporary Flow Diversions and 2 Banks Rip Rap Protection and Natural 125 Rock Benches Watauga Creek Channel and Impervious Dikes and Temporary 3 Banks Flow Diversions 15 (Up. of Perm. Impacts) Permits Requested NCDOT hereby requests authorization under Section 404 of the Clean Water Act to proceed with the construction project outlined above. We request comments from Mrs. Marla Chambers, Western NCDOT Review Coordinator with the North Carolina Wildlife Resources Commission (NCWRC), on the proposal. Similarly, Section 401 of the Clean Water Act authorization from the North Carolina Department of Environmental Quality (DEQ), Division of Water Resources (DWR) is requested. Please contact me at (828) 586-2141 if you have any questions about this application or need additional information. Your prompt review and consideration of this request will be greatly appreciated. `Sln�ocu�i�iied by: L���� 7/15/2017 a�����'�i�.. Division 14 Environmental Officer Enclosures ec: Mrs. Marla Chambers, NC Wildlife Resources Commission Mr. Andrew Henderson, US Fish and Wildlife Service, Asheville Ms. Amy Chapman, Division of Water Resources — DEQ, Raleigh Ms. Kristi Carpenter, Division of Water Resources — DEQ, Raleigh Mr. Kevin Barnett, Division of Water Resources — DEQ, Asheville Mr. Josh Deyton, PE, Bridge Management Engineer, NCDOT Division 14 Mr. Reid Whitehead, Roadside Environmental Field Operations Engineer, NCDOT `O��F WA7F�QG � r � � O Y Office Use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre-Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: � Section 404 Permit ❑ Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: 3 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ❑ Yes � No 1d. Type(s) of approval sought from the DWQ (check all that apply): � 401 Water Quality Certification — Regular ❑ Non-404 Jurisdictional General Permit ❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization 1 e. Is this notification solely for the record For the record only for DWQ 401 For the record only for Corps Permit: because written approval is not required? Certification: ❑ Yes � No ❑ Yes � No 1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation � Yes � No of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu fee program. 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h ❑ Yes � No below. 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes � No 2. Project Information 2a. Name of project: Replace Bridge No. 64 on SR 1328 (Jim Berry Road) over Watauga Creek 2b. County: Macon 2c. Nearest municipality / town: Franklin 2d. Subdivision name: N/A.1 2e. NCDOT only, T.I.P. or State 176P.14.R.140 Project No: 3. Owner Information 3a. Name(s) on Recorded Deed: North Carolina Department of Transportation 3b. Deed Book and Page No. N/A 3c. Responsible Party (for LLC if Dave McHenry, Division 14 Environmental Officer applicable): 3d. Street address: 253 Webster Rd. 3e. City, state, zip: Sylva, NC 28779 3f. Telephone no.: 828-586-2141 3g. Fax no.: 828-586-4043 3h. Email address: dqmchenrv(c�ncdot.qov Page 1 of 10 PCN Form — Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: ❑ Agent ❑ Other, specify: 4b. Name: N/A 4c. Business name N/A (if applicable): 4d. Streetaddress: N/A 4e. City, state, zip: N/A 4f. Telephone no.: N/A 4g. Fax no.: N/A 4h. Email address: N/A 5. Agent/Consultant Information (if applicable) 5a. Name: N/A 5b. Business name N/A (if applicable): 5c. Street address: N/A 5d. City, state, zip: N/A 5e. Telephone no.: N/A 5f. Fax no.: N/A 5g. Email address: N/A Page 2 of 10 B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): N/A 1 b. Site coordinates (in decimal degrees): Latitude: 35.2250 Longitude: -83.3658 1 c. Property size: N/A acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Watauga Creek proposed project: 2b. Water Quality Classification of nearest receiving water: C Tr 2c. River basin: Little Tennessee River Basin (HUC 06010202) 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: The site is location of deteriorated timber bridge on a secondary road. Landscape near the bridge consists of lawns, barnyard, single family residence, drives, and woodlands. 3b. List the total estimated acreage of all existing wetlands on the property: N/A 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 200 3d. Explain the purpose of the proposed project: To replace the deteriorated timber bridge with a 40' W x 7' H bottomless reinforced concrete box culvert on existing location. 3e. Describe the overall project in detail, including the type of equipment to be used: Erosion and sedimentation measures and practices for sensitive watersheds will be followed. An off-site detour will be used. The grading will begin and banks immediately stabilized. The old bridge will be demolished and the new culvert constructed. Track hoes, cranes, dump trucks, bulldozers, paving equipment, water pumps, sandbags, diversion pipe and various hand tools will be used. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained fo�r this property / � Yes � No ❑ Unknown project (including all prior phases) in the past. Comments: N/A 4b. If the Corps made the jurisdictional determination, what type of determination was made? ❑ Preliminary ❑ Final 4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: N/A Name (if known): N/A Other: N/A 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. N/A 5. Project History 5a. Have permits or certifications been requested or obtained for � Yes � No ❑ Unknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. 6. Future Project Plans 6a. Is this a phased project? ❑ Yes � No 6b. If yes, explain. Page3of10 PCN Form — Version 1.3 December 10, 2008 Version C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ❑ Wetlands � Streams - tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number — Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ — non-404, other) (acres) Tem ora T W 1 ❑ P❑ T N/A N/A ❑ Yes ❑ Corps N/A ❑ No ❑ DWQ W2 ❑ P❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W3 ❑ P❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W4 ❑ P 0 T ❑ Yes ❑ Corps ❑ No ❑ DWQ W5 ❑ P❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W6 ❑ P❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ 2g. Total wetland impacts N/A 2h. Comments: N/A 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type ofjurisdiction Average Impact number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ — non-404, width (linear Temporary (T) (INT)? other) (feet) feet) S1 � P❑ T Bottomless Culvert Watauga Creek � PER � Corps 15 0 ❑ INT � DWQ Rip Rap and � PER � Corps S2 � P❑ T Benches and Temp. Watauga Creek 15 125 Flow Diversions ❑ INT � DWQ S3 ❑ P� T Temp. Flow Watauga Creek � PER � Corps 15 15 Diversions ❑ INT � DWQ S4 ❑ P ❑T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5❑P❑T ❑PER ❑Corps ❑ INT ❑ DWQ 3h. Total Permanent Stream Impacts for Bottomless Culvert 0' Total Temporary Stream Impacts for Impervious Dikes and Flow Diversions (beyond permanent) 15' Total Permanent Stream Impacts for Rip Rap Bank Stabilization and Benches 125' 3i. Comments: Page 4 of 10 PCN Form — Version 1.3 December 10, 2008 Version 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individuall list all o en water im acts below. 4a. 4b. 4c. 4d. 4e. Open water Name of waterbody impact number — (if applicable) Type of impact Waterbody type Area of impact (acres) Permanent (P) or Tem ora T 01 ❑ P❑ T N/A N/A N/A N/A 02 ❑P❑T 03 ❑P❑T 04 ❑P❑T 4f. Total open water impacts N/A 4g. Comments: N/A 5. Pond or Lake Construction If ond or lake construction ro osed, then com lete the chart below. 5a. 5b. 5c. 5d. 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose of (acres) number pond Floode d Filled Excavated Flooded Filled Excavated Flooded P1 N/A N/A N/A N/A N/A N/A N/A N/A P2 5f. Total N/A N/A N/A N/A N/A N/A N/A 5g. Comments: N/A 5h. Is a dam high hazard permit required? ❑ Yes � No If yes, permit ID no: N/A 5i. Expected pond surFace area (acres): N/A 5j. Size of pond watershed (acres): N/A 5k. Method of construction: N/A 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If an im acts re uire miti ation, then ou MUST fill out Section D of this form. 6a. ❑ Neuse ❑ Tar-Pamlico ❑ Other: Project is in which protected basin? N/A ❑ Catawba ❑ Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number — Reason BufFer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) Tem orar T im act re uired? 61 ❑ P❑ T N/A N/A � NoS N/A N/A B2 ❑P❑T ❑Yes ❑ No B3 ❑P❑T ❑Yes ❑ No 6h. Total buffer impacts N/A N/A 6i. Comments: N/A Page 5 of 10 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. The culvert was designed to meet the hydraulic needs and roadway constraints of the site. This culvert is bottomless and will not impede or impair aquatic life passage. The rip rap and disturbance downstream of the culvert were reduced from the original design in coordination with USFWS. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. All instream work will be performed in dry work areas using impervious dikes and diversions (as needed) to divert water around the project sites during bridge removal and culvert installation. BMPs for sensitive watersheds (see BA) will be used on this project due to effect on habitat for Spotfin Chub. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for ❑Yes � No impacts to Waters of the U.S. or Waters of the State? 2b. If yes, mitigation is required by (check all that apply): ❑ DWQ ❑Corps ❑ Mitigation bank 2c. If yes, which mitigation option will be used for this project? ❑ Payment to in-lieu fee program ❑ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: N/A 3b. Credits Purchased (attach receipt and letter) Type N/A Quantity N/A 3c. Comments: 4. Complete if Making a Payment to In-lieu Fee Program 4a. Approval letter from in-lieu fee program is attached. ❑ Yes 4b. Stream mitigation requested: N/A linear feet 4c. If using stream mitigation, stream temperature: ❑ warm ❑ cool ❑ cold 4d. Buffer mitigation requested (DWQ only): N/A square feet 4e. Riparian wetland mitigation requested: N/A acres 4f. Non-riparian wetland mitigation requested: N/A acres 4g. Coastal (tidal) wetland mitigation requested: N/A acres 4h. Comments: N/A 5. Complete if Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. N/A Page6of10 PCN Form — Version 1.3 December 10, 2008 Version 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires ❑ Yes � No buffer mitigation? 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. 6c. 6d. 6e. Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (square feet) Zone 1 N/A N/A 3(2 for Catawba) N/A Zone 2 1.5 6f. Total buffer mitigation required: N/A 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund). N/A 6h. Comments: N/A Page 7 of 10 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1 a. Does the project include or is it adjacent to protected riparian buffers identified � Yes � No within one of the NC Riparian Buffer Protection Rules? 1 b. If yes, then is a diffuse flow plan included? If no, explain why. ❑ Yes ❑ No Comments: N/A 2. Stormwater Mana ement Plan 2a. What is the overall percent imperviousness of this project? N/A 2b. Does this project require a Stormwater Management Plan? � Yes ❑ No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: Project is covered by NCDOT Individual NPDES Permit No. NCS000250. ❑ Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ❑ DWQ Stormwater Program � DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? N/A ❑ Phase II 3b. Which of the following locally-implemented stormwater management programs ❑ NSW apply (check all that apply): ❑ USMP ❑ Water Supply Watershed ❑ Other: 3c. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? 4. DWQ Stormwater Pro ram Review ❑ Coastal counties ❑ HQW 4a. Which of the following state-implemented stormwater management programs apply � ORW (check all that apply): ❑ Session Law 2006-246 ❑ Other: 4b. Has the approved Stormwater Management Plan with proof of approval been attached? ❑ Yes ❑ No 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? � Yes ❑ No 5b. Have all of the 401 Unit submittal requirements been met? ❑ Yes ❑ No Page8of10 PCN Form — Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 a. Does the project involve an expenditure of public (federal/state/local) funds or the � Yes ❑ No use of public (federal/state) land? 1 b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ❑ Yes � No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.) ❑ Yes ❑ No Comments: 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ❑ Yes � No or Riparian Buffer Rules (15A NCAC 26 .0200)? 2b. Is this an after-the-fact permit application? ❑ Yes � No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): N/A 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in � Yes � No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. This is a rural secondary road. The bridge is being replaced to standard load limits and width to improve safety for the traveling public. The culvert is not anticipated to have any significant impact on future development. 4. Sewage Disposal (DWQ Requirement) 4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. N/A 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or � Yes ❑ No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act impacts? � Yes consulted,copied applic. ❑ No ❑ Raleigh 5c. If yes, indicate the USFWS Field Office you have contacted. � Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? North Carolina Natural Heritage Database, coordination with USFWS staff, and site specific surveys conducted during the bridge scoping process. Page 9 of 10 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? ❑ Yes � No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? N/A—There are no marine or estuarine communities within the Blue Ridge Physiographic Province. 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation � Yes � No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? The project was reviewed by NCDOT's Human Environment Unit in 2012 for potential effects on historic architecture and archaeology. A survey was completed for architecture. Findings of no resources present/affected were returned for both architecture and archaeology (see attached forms), but a re-verification of those determinations is underway since the original project design has changed from a bridge to a culvert and the project area slightly exceeds the original APE. 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA-designated 100-year floodplain? � Yes ❑ No 8b. If yes, explain how project meets FEMA requirements: Coordination with Floodplain Management and MOA Type 26 for Limited Detailed Study. 8c. What source(s) did you use to make the floodplain determination? NC Floodplain Mapping Program and NCDOT Hydraulics Unit. 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Prepored 7n lhe Offlce of: HYDRAULICS ENGINEER DIVISION OF HIGHWAYS GRAPHIC SCALES DESIGN DATA PROJECT LENGTH I�AUGHN f� MELTON .,����°�""""��••° sTazE OF NORTH CAROLINA ,>',"_ `e R�<;`�_,. 1318—F PATTON AVE. � oF.��wv;,��.,y :. ASHEVILLE NC, 28806 20 l0 0 20 AO LENGTH ROADWAY PROJECT VBP.14.R.140 = 0.027 MI FOR rNE NORr,v cnRo�zNn orvrsroN oF NreN�N�rs =� o33oz3 `= �� � p�� ;,, Up � ; � ��\ 2012 STANDARD SPECIF1CATlONS `- ���.E^��-�:��� .�•` �� P L A N S ADT 2009 = 1100 LENGTH STRUCTURE PROJECT 17BP.14.R.140 = 0.008 MI ,< r"5"'Ro.. � o� HARDY WILLIS, PE ���"" "' '�� ADT 2025 = 2200 TOTAL LENGTH OF PROJECT 17BP.14.R.140 = 0.035 MI s,cNnruxE: PL `� ` 2o t0 0 20 40 o RIGHT OF WAY DATE: PRo�Ecr ENc,NEErs � �� T= 6/o APRIL 29, 2014 ROADWAY DESIGN ,�1N, �°Ro�;-,.; ��'�� ,�c��% PROFILE (HORIZONTAL) V= 25 MPH REECE SCHULER, PE ENGINEER =�;oFEss1'gy ,_ �,� ����,�� FUNC/^1.� (� PROJECT DESIGN ENGINEER �a SEAL �= = l.✓YJ� = 26960 4 2 0 4 8 MAJOR COLLECTOR LETTING DATE: :;-;FH��NE�p �p:: LOCAL NCDOT CONTACT. ",�"F�E ,�. `�J,, _ _ _ JOSH DEYTON, PE '°",,,,"C;,S,,,.° PROFILE (VERTICAL) D,vrsrox ra-aruDcs n�Nncex PE S7GNATURE: N 0 - - PROJECT REFERENCE NO SHEET NO ta+oo � ���� � -L- CURVE DATA / :��e/ le' /q� 4 ' esr. sa roNs so.00' �� � - —Esr. s 1oNs Pl Sto 13+49.00 Pl Sta 15+03.06 w,v srreer Ho. ,� / ' // � � D = � � 0 � 50. �, (RTI Q = 62.23 054.9(RTl \ eN�weea eN� � ao.00' , T . 4+�9 7 Esr. n TONs T- 52.24 T- 3/.23 N cARo uucs (V 1$+$O .. S NEER (STRUCTURP.L PAY ITEM) �(. I (STRUCTURAL PAY ITEM) ROADWAY DESIGN HYDRA CL455 II RIP RAP EXCAVATION= 65 CY �� 30.00'�EX.RW) � � � cuss uaiv anr R = 3/0.00' R = 300.00' ,�oe,,.,, „ �, , , � � '.Fo � � � � � ... j � v ] � � ; ��`Fi � , 9', m��0:'QP C Z a STRUCTURAL PAY ITEM SS/ �'�,'�' � �''�OF���N r> RAN�A Site 1 i ta+55vnnoN= so cv SE _.02 SE _.044 '�eSEAL ��= " _� s F A � 9 9� � nF � S' \ /\ 30.00' END+C�U�L�VERT �Do NOT RO = 32.5 RO = 76 :a za9eo ,_ e�: o33oz3 ' BEGIN CULVERT 13+65 �� � ITE �'30.00' DISTURB CANOPY = = ,� ; s m�. U _ i� ,; EX. WW - -, i ' v'FHc E�-�' � S f s' � o:` Q L- STA. 13+91.33 40.00' / � F/( ) L- STA. 14+33.00 END PROJECT 's,FF , ^�i�E � o.- Z � � � � ��' .� -L- STA. 15+00.00 �EF i �F��M�'�c``�' ��Fy" .';'R`o 73+45 � .. ��. s � 1Y � � � � � ..�'. . F / (EX. WW� . _ . . � .,. i . _ . ��"��„ � ���,,•.c ^^�,,,..,,e�.,���.,00,,....,,..� 30.00' (EX.WW� 401� � � _ PEMrJ1�� - � � - _ END SHOULDER � � � F; . �8" F ., �- ��r �, L'�'�!_�:' - � - ---- CONSTRUCTION UNLESS ALL SIGNATURES�COMPLETED �` / � -- 9r � �,� ' I` �, E _ � ta. 14+7/.83 F _ � -L-� STA 75 + 10 .. /.- RE V ;-� ` ---_ . .. �G � __ l l , F _-_ _� - RFTAIN � ... BEGIN PROJECT � ,' `' � �'� - � , +1e = 1 ����� END CONSTRUCTION -L- STA. 13 + 15.00 � � � �' " � � — : � � ` � 8 � �eau aso 1-� F � � � -L- STA. 15 � 7 0.00 i� � � �� � - � � � ` �� w � _ � � _ rn ,/- � -' ,o.- . -.IC- "�. - I -4'FDPS 10' n, J �� ... � � ,�-�� .. . � r J -I � � I Y \ fi�� �� 0 U� � �/ � �V . i ' � -L I �' o F � \ , .,� . � rr�� � �%�- F � � 1p' II �i � 4' �DPS I N .. l0' ' -�p -0 \, GR � � �� � r � � .�., � – – o �� r � , ; , - � - �� � � � o N � 5 - � � ,.,� / i , � � , � �, o ,o� – - � � —� �, ��fi �C i J/ i � i � O � .. /� � i .� ' I � i S- i I . - . i .i�� � .. � . . . � N . .. . �j�" / .1� '� \ / . . .��� � ' �� r �___- - F\ � HOPµURV .,. � HOP�2l�R4€D.�I r ' "O��r . �-9 ,/ S .. � . � �_ F 1 R=gS' ��� , � I ���� _ F _ .. ` _ . �.�^T �" _ , � � 1 AT ���_ ' . _. - J - y�� 1' 2Q'TAPER ___ �.1 y�� � _ T�pER . �, :..� � �i I� /9F54 �I /7.25' � LT & RT � �' .-,-� . � 9 �� & r �\ J/ � �� � . _ ' �, RE PDG-- —� ! ,i � � � �'3 , � ,J� . � � �T R� �� a I � PD � " — / ; /,���. �� � -, � . 13+30 �F �- ��qSP . R' � � �� � 14+47 74+80 / � ,� ex. ww ��� aosa� EX. ww _���� �� REVISED �" � so.00� F � i� ��sru � �� � ( ) - 30.00' W �BASEMENT " �i s�' \ % ��� � T53pm, Sep 02, 2016 .._� 45.00' 13+70 � ,� i � �.-� � 40.00' � r4PVIV61 � � ' ; � � � s '_ �S(\N�'�� 46.00��EX. WW)f - � EST 32 TONS �� � � � �- � � �� . ,�� / / �� �, , �x � - �,-. i � CILASS II RIP RAP . . ... , ... , . .. ��� ��,, EST.7 TONS�' � � EXCAVATIONL PAZ � � � -_ . RETAIN _ f�'�_' ' , i. , CLASS IIRIP RAP SHADED AREA IS RIP RAP/ � - (STRUCTURAL PAY ITEM1 ��� � �� . - _- _ _ E%CAVATION- 45 CY . � �°E T", "` E5T 36 T°NS��' DISTURBANCE ELIMWATED - SEE DB V 7 I'C � NATNE MATERIAL � `STR��T�a�� PAY �TEM, � �CULVERT DRAWING FOR REVISED � G° RA �� ^` � FENCE & GATE RESET C' f'' ° as � ;� �3+s5 To ,s+�5 Rr %`_14+07 ` STABILIZATION/IMPACTS � �a�ge�&Me��a� � s ,. � ioo.00� �o�_� F s � , -� POINT NORTH EAST ELE`� ATION ,-� 14�00 ��Y �L. �, '^' � r v ue � a4 „ i � �'� . - 100.00' - � ` �-; ` . ■ N�+n c i.. � � � � � _______ ____ ___ ____ __ ____ ________ � i '� ', Uf3 P-35'C 25i � 2 ❑ M }, . .� / �_'"'� � BL-I 565319.5560 696312,3700 2013e79 �� � �-� o<na�o� o sa FULL DEPTH PAVED SHOULDER - � � '°° "' °°aa 82e "' 993 � "° 6�"s°' � BL-2 555A9L51q0 E96585e�1490 20QIe10 � p � 2006 �a �, Ma,p , q �,s A�e ea BL-3 565508.0520 696800.6160 2012e53 � i � i i i i � � i i i i i � I i i i � i � � ( � i I � I I _ _ I I —I I —� � � :1 _ : : _ — - r _ , — — — ,. ,,, _- � � , - _ ; - --- - -- — -- -- _ _ , , � . � --- -- � _ _ . _ - _ _ _ -- � , ;. , , _ , o i '� I I ' �f _.__ ' GL STA. 14 + 12 .l 7-L- -�- __ - _,_J_ _, � , � - _ - _- 1@ 40 x 7 BOTTOMLESS REINFORCED CON£RETE BOX CULVERT � - - � : �� - SKEW = 90 , _ ; - . t , ` I - -- -_ _ � 2,912 � � � � ' -' _ _ � BEGIN GRADE ..— CJL ELEV. - ZOO2.6� � � E�i D GRADE - - --- -- - _ ,,,_`_ I� - STA.l3+15.00 I � I I I STA I5+00.00 ��' BM z . ._ � . . . , `. �. �. . . . . i . . : t _ i . . . . . . . _ - STA . . . . �� i i - I __ asu -- '' ELEV 200328 - � � -- ELEV.= 2,0 . `' , ���' ' ;. l 14+70v00 ���/''I �'� � _ / � _'�/_ ,_ � � •�� ,Q9$ _ - , ��'� _�_ _ ' ' Pl 13+60.00 - . ,-'�� ��Fv � ci7F;�F 2,QQs� ` �-< I � i L= 2.003.64' i � ,, , EL 2900 ,65 � : � � _ �, � REMovE � � � � � � �� ,_ __,— ' , , � VC = 90' ExisriNc ��C = 55' ,, � , ; \'''�� I � ' K = l7 PROPOSED GRADE BRIOGE �( _ �f3 _ ''' _ � � - � ���065� STRUCTURE HYDRAUUC DArA �' � '' _� � �+�409 I ,. � � '��� ' ��-�-- '"�� �'- DESIGN DISCHARGE _ 1700 CFS �----` 6� ,_� _� � .. I. _`_. . . . . . . . ... . . . . : : : � : DESIG EQUfN Y - 25 YRS - — �- - - 42% I - �, - � __' �36200/ -k.. . l +)I 80 , __: ioN = -- - - � ---------T-- _`_ _ f � ' _. (+)1.8042% ' ` � � � ;. i i easE F�o�Ncrr - 000� rRss ' 2,000 ' - - - � easE t+w E�EvanoN = zoozes Fr _ 2,.QQC o . . I . . I.. , ;. . . . . . ..�_._._ � ,, .. .. . . . .. � . . _ ... . . . . . .. . .. . . .I . . . . . . . . . . . . . . . . OVER7"OPPING DISCHARGE = 2/00 CFS - � _._ -- �--- _ , � EXISiING 6ROUND ! _ m _ _. 3 . _ ,� .. . � x� . � . . . � . . . . . . : . : : OVERTOPPlN6 ELEVATONr = 20023yRT i__ _ _ i � .. _. . ....—` ;:;:; �_ .._ . . _.. . . . - I EXCAVATE TO s.E�EvarioN � X'; s � ,� � � �T oarE oF suRVEr a � � � � _ :.. � �� �..� �: ;' _ EST�250 CY4 i9942 Fr 1,99� � �996 _ _ ... .. .. .. . . . ... DRAINAGE AREA 7.68 SO.till .. ... u� I .. . � . . :: :: : � : �. � � � . . . i . .. . . . . � � . . . . . . . . . .. . . . ��, . �. .. . �: . . . . . . ._..�: �. . . . . . . ��. .��: . �.. . . .. �, . . . . . _. _I_ , .._i _._ . . o � i � ���:. �. .. .. .. . .. .. . . � : � I . . ° �r.i1 ...I.�. __ i i . �� �� .. . I . ... ... .... � ..: ..:� : : :: .. .. :�. �.. .: :: :�. .. . ....... 1,Qq2 � � ' _ _ _' __ _ _ '_ _ _ ' . . � , .. � ._,_ . I ,...__ ' . . . . . . . . . . . . . . . . . . . . . � ' i - - - I EXCAVATE TO . . ;' � a I_ - - -- ELEV. 1995.2, � BOTTOM F C P � i i i l; EST.110 CY � i / BELOW SCOUR LINE �-- N p _. i -: ! � � Q�-� I I NORMAL WSEL �i I I �— STEEL H-PILES _. �,Q.�$ � i = 1994.2 _ � � _ (10 15-2013) I -- - - ____ � � - - -- - - - ;I i, � . _ i�. .`�,: �,�%$4 I � � � FOOTING KEYED � �� ,.�I.S4 � I i 1 MIN.INTO ROCK � � I I ,� Q. � i � N� � �ro: =%^ 12+00 13+00 14+00 15+00 16+00 17+00 '�� ��:, I�,.>> C�) � I C�)� I�!�� ��' C�) \� " �' I"� C�) I., � � THESE EROSION AND SEDIMENT CONTROL PLANS COMPLY Level III-A: Designer of Erosion and $ediment Control Plans WITH THE REGULATIONS SET FORTH BY THE NCG-O70000 GENERAL CONSTRUCTION PERMlT EFFECTIVE AUGUST 3,20ll ISSUED BY TKE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND MICHAEL CLARK NATURAL RESOURCES DIVISION OF WATER QUALITY. Date Iss�ed: June 5, 2013 Date Expires: December 31, 2016 Certification Number:3376 -L- STA. 131 15.00 �I� ��r,� \ � o:i CY i \�/ �� , ' X ��� , � '\ � GIN CULVERT . - STA. 13+91.33 401 r � - 8 l , I RE f� ,' � - %" - � ��, a �� � ' �o' _` .... '" �.%I � , � . �o' , _ _. � , � ^�;' �; � - � �s LATERAL BASE�DITCW " � ` � `�"�` / �STRUCT IRAL P Y ITEMI �DE�AIL 1 � lS/r.-! � �__ x � � �,—EST. 17 TONS M I L / �\�/ ` � CLASS II RIP RAP � ANOPy / , \ / � ' j � (STRUCTURAL PAY ITEM) � J E%CAVATION= 50 CY � � 1 � / �� END NLVERT � �� � � � � F -L- STA. 14+33.0 - PdE —�"— - Pp€ �t� � � � I�� P _, , •, - � ' =-- - - END SHOULDER —CQNSTRUCTION �fi -�- ST;4 1-5 t 10 = RE741N \ . F'� iy�� ����p ____ END CONS7 _� Ili,)J III ', \.. �i ., A� � + I` - �- --- —'—_ ��. � io� - � �_ � � _ �_ to� �-� -- \ __ � ; � �� � � �� � ��� � i \ 3?c \ 3`��' \ � � ��• - �`-� ��� � BRIrK \ " )� � COLUMN ��'�/ � �..-,? ::^���� � - - PDE� �vt f ,, )� � � � - - � ,�`�'�' � \ J � � � e^ , V"LSF� �'�.., � � � �-Z �� � � IMPERVIOUS W/BqSEMENT 5 � NOTE �� '� � i � �iKe �Aenn�m `��, � � � � � � '� �� � �"�/� ,'�� � ,,� ��to� � � � Erosion Control Requirements will be revised to � . - ��� ��y , � � �, ,_ , ,vs WA�K ;' � include all practices in the BA including, in part, the following plan changes: 1) special sediment fence at TOB and regular - as - shown- at toe of bank 2) orange safety fencing adjacent to construction areas/ESAs. 3) Erosion control standards (timeframes) for sensitive watersheds. ���o � ���CIl°➢]��Il�➢➢ �L��vUo�JL ��ffC➢]��Il°�,Il°� �]LL'� ll' �II➢�C� -_--__ lL�b��,�� lEg��I� l[�➢�� ���I�n,���,� °][�����°��� � �dunn��� ��� � EST 7 TON$ � � /� � � (STRUI URAL�FAY ITCM� � 1-, h� I� I CLASS II RIP RAP / / r EXCAVAiION= 200 CY � �" I �STRUCTURAL PAY ITEM) �� ( �� ( EXCAVATION= 45 CY � � / ��' � � � � �� � I EST. 36 TONS�� ,+'� ��,J / \ ('( NATNE MATERIAL { { / � / � �% �' �+ � S � (STRUCTURAL PAY ITEM) �r,� � .f �� I PENCE & GATE RESET �� ; i � � � � � 60 13 + 35 TO 13 -F 75 RT � � i� j' � , ,�_, � / � / � � � / � JLV➢¢U¢D,��L �CQ'il➢�H�Il°�Il°� ���'.hC �Sll� `VllIl��1F.S ��Y]���3�� . . . . . h�/..��� �� ��Da��o�� ��.�f��� �� �mni° �n��rz° ��.d(cll� .. .. .. ...... ..- --------- -------� -]EW- �Il�➢� 1��➢���t�����o�➢� �1��1�D--_ _ ---_ � �� � ass s4E ,�a�o 0 Vaughn&Mellon � a�„»i- � _ � ,_�.. � � a a �a a,� A�nedlle, ea3 s,a sE,o ■ Norm r ,c ❑ ❑ ❑ ❑ sas �a sboo — FULL DEPTH PAVED SHOULDER � / / NOTES: ANY DEVIATION FROM OPTIONS GIVEN WILL REQUIRE PRIOR APPROVAL BY ENGINEER. ADDITIONAL EROSION CONTROL DEVICES MAY NEED TO BE INSTALLED AS DIRECTED BY THE ENGINEER. ��i il��lllldlli ll'a1N Y' llllA�1V 1Wll�1V �!]>lls 'V dV Y ll ���.������� �� �d4.��������i ���� IIDI������T �1F 1H[��]H[WA�� RALEIGH, N.C. ���� �������� ����������g��� % � ENVIRONMENTALLY SENSITNE AREA SEE PROIECT SPECIAL PROVISIONS CLEARING AND GRU861NG EROSION CONTROL FOR CONSTRUCTION SHEET d ��1�� �����:��� ��1��1��v.� ]604.0] RailroaA Erosiou Connol llecail 1632.01 Rock Inle� Sedimrn� "1'rup "1'ype A 1605.0] Temporary Sil� Pence 1fi32.02 Rock Inlec Scdimenc Trnp Type B ]606.0] tipecinl Sedimenc Cm�trol Fence 1632A3 Rock Inlec Sedimea�c'Crap 'Pype C 1607.01 Grv.cl Consnucnon Gno-ance 1633.01 'femporan Rock S Ic ! h 6'fyve A 1622.01 'Icmpo�en �ennvu�d tilun� Urui�s 1633.02 Tem�,oran Ru�k 3�Ic(.heck'Cyve li 1630.01 RiAer B�sin tG34.01 Tcmpurury Ru �C Scdimcnr Dum "fypc A 1630.02 Silc ansin Tyne B 163492 l'en,i,orary� Itock Sedimenc Umn "ly„e B 1630.U3 'femporaq� Silc Dicch 1635.01 Rock Pipe Inlcc Bedimenc Trap Ty�,c A 16i0.04 Stilling 13usin ifi35.02 Rock Yipc InIc1 Scdimcnt'I'rep 'f�Pc R 1630.05 "fempnran• Uivereion 1640.01 Coir I�iber Beflle 1630.06 SnecialS�illing Resn 1G45.01 "Ccmporacy Smcam Ccossing 163LO1 Macong lnrtnlleriou �� I� I �__= RET/!Ir _ _ �, I I / I REVISED 2r54 pm, Sep 02, 2016 � � BM #20 8" SPIKE IN ROOT OF 36" SYCAMORE 6805' LEFT OF STAo 15+9qo11 —L— N 5655280679 E 696839055 E�o 2019006' SITF PROPO 3—SIDE � +� � � rn rn � J W CLASS II RIP RAP � \ k FOR UTILITY INFORMATION,SEE UTILITY PLANS AND SPECIAL PROVISIONSo LOCATION SKETCH PROFI�E ALONG � CULVERT ASSUMED LIVE LOAD ----- HL-93 OR ALTERNATE LOADINGe DESIGN FILL ----- MAXe = 3a5' MIN� = 2e3' FOR OTHER DESIGN DATA AND NOTES9SEE STANDARD NOTES SHEETe THE RESIDENT ENGINEER SHALL CHECK THE LENGTH OF CULVERT BEFORE STAKING IT OUT TO MAKE CERTAIN THAT IT WILL PROPERLY TAKE CARE OF THE FILLo CONCRETE IN ININGS SHALL BE POURED IN THE FOLLOWING ORDERe 1aF00TINGS INCLUDING 4"OF ALL VERTICAL WALLSo 2oTHE REMAINING PORTIONS OF THE WALLS AND WINGS FULL HEIGHTo 3"QS WEEP HOLES INDICATED TO BE IN ACCORDANCE WITH THE NCDOT STANDARD SPECIFICATIONSo A 3'-0"STRIP OF FILTER FABRIC SHALL BE ATTACHED TO THE FILL FACE OF THE WING COVERING THE ENTIRE LENGTH OF THE EXPANSION JOINTo FOR MAINTENANCE OF TRAFFIC9SEE TRAFFIC MANAGEMENT PLANSo FOR FALSEWORK AND FORMWORK9SEE SPECIAL PROVISIONSo FOR GROUT FOR STRUCTURES9SEE SPECIAL PROVISIONSa FOR CRANE SAFETY9SEE SPECIAL PROVISIONSo FOR SUBMITTAL OF WORKING DRAWINGS,SEE SPECIAL PROVISIONSo FOR PILES,SEE SECTION 450 OF THE STANDARD SPECIFICATIONSo THE CONTRACTOR SHALL PROVIDE DRIVING EQUIPMENT IN ACCORDANCE WITH SUB—ARTICLE 450-3(D)(2)OF THE STANDARD SPECIFICATIONSe TEMPORARY SHORING MAY BE REQUIREDo SEE STANDARD DRAWING NOe 1801e01 FOR STANDARD TEMPORARY SHORINGe TOTAL STRUCTURE QUANTITIES REMOVAL OF EXISTING STRUCTURE AT STAe 14+12017 —L— PRECAST REINFORCED CONCRETE THREE—SIDED CULVERT AT STAo 14+12e17 —L— CLASS 'A' CONCRETE REINFORCING STEEL 12x53 STEEL H—PILES CLASS II RIP RAP NATIVE MATERIAL PILE EXCAVATION IN SOIL PILE EXCAVATION NOT IN SOIL ASBESTOS ASSESSMENT GRADE DATA GRADE POINT ELEVe Cd� STATION 14+12e17 = 2002a6± BED ELEV� � STATION 14+12017 = 1992024± ROADWAY SLOPES 2e1 HYDRAULIC DATA DESIGN DISCHARGE i DESIGN FREQUENCY DESIGN HW ELEVATION BASE DISCHARGE BASE FREQUENCY BASE HW ELEVATION OVERTOPPING DISCHARGE OVERTOPPING FREQUENCY OVERTOPPING ELEVATION DRAINAGE AREA IN�So ELEVATION AT DATE OF SURVEY = 1700 CFS = 25 YRS = 2001e5 FT = 2500 CFS = 100 YRS = 2003v05 FT = 2100 CFS = 25+ YRS = 200203 FT = 7068 SQe MIo = 1994e2 FT (10/15/2013) LUMP SuM LUMP SuM 6401 CUo YDSo 4,098 LBS 13208 LIN� FTo 9400 TONS 8700 TONS 55a0 LINa FTe 5800 LIN� FTo LUMP SuM l HEREBY CERTIFY THAT THESE PLANS ARE THE AS -BUILT PLANS, NOTESo THE EXISTING BRIDGE INDICATED ON THE PLANS IS FROM THE BEST INFORMATION AVAILABLEoSINCE THIS INFORMATION IS SHOINN FOR THE CONVENIENCE OF THE CONTRACTOR9THE CONTRACTOR SHALL HAVE NO CLAIM WHATSOEVER AGAINST THE DEPARTMENT OFTRANSPORTATION FOR ANY DELAYS OR ADDITIONAL COST INCURRED BASED ON DIFFERENCES BETWEEN THE EXISTING BRIDGE SHOWN ON THE PLANS AND THE ACTUAL CONDITIONS AT THE PROJECT SITEe THE EXISTING STRUCTURE CONSISTING OF 1 SPAN, 25'-6" LONG, WITH A CLEAR ROADWAY WIDTH OF 19'-0"91NITH TIMBER DECKING ON I—BEAMS ON TIMBER CAPS9POSTS AND SILLS AND TIMBER BULKHEADS AND LOCATED AT THE PROPOSED STRUCTURE9SHALL BE REMOVEDo THE EXISTING BRIDGE IS PRESENTLY POSTEDo SHOULD THE STRUCTURAL INTEGRITY OF THE BRIDGE FURTHER DETERIORATE9THIS LOAD LIMITATION MAY BE REDUCED AS FOUND NECESSARY DURING THE LIFE OF THE PROJECTa REMOVAL OF THE EXISTING BRIDGE SHALL BE PERFORMED SO AS NOT TO ALLOIN DEBRIS TO FALL INTO THE WATEReTHE CONTRACTOR SHALL REMOVE THE BRIDGE AND SUBMIT PLANS FOR DEMOLITION IN ACCORDANCE WITH ARTICLE 402-2 OF THE STANDARD SPECIFICATIONSo INASMUCH AS THE PAINT SYSTEM ON THE EXISTING STRUCTURAL STEEL CONTAINS LEAD9THE CONTRACTOR'S ATTENTION IS DIRECTED TO ARTICLE 107-1 OF THE STANDARD SPECIFICATIONSoANY COSTS RESULTING FROM COMPLIANCE WITH APPLICABLE STATE OR FEDERAL REGULATIONS PERTAINING TO HANDLING OF MATERIALS CONTAINING LEAD BASED PAINT SHALL BE INCLUDED IN THE BID PRICE FOR 'REMOVAL OF EXISTING STRUCTURE"a FOR PRECAST REINFORCED THREE—SIDE CULVERT9SEE SPECIAL PROVISIONSo FOR CULVERT DIVERSION DETAILS AND PAY ITEMqSEE EROSION CONTROL PLANSo FOR ASBESTOS ASSESSMENT FOR BRIDGE DEMOLITION AND RENOVATION ACTIVITIES9SEE SPECIAL PROVISIONSo FOOTING IS DESIGNED FOR ASSUMED PRECAST CULVERT WALL THICKNESS OF 1'-0"o HEADWALL IS DESIGNED FOR PRECAST TOP SLAB THICKNESS OF 1'-6"e FOUNDATION RECOM MENDATIONSo THE SPREAD FOOTINGS ARE DESIGNED FOR A FACTORED RESISTANCE OF 6 TSFeCHECK FIELD CONDITIONS FOR THE REQUIRED RESISTANCE OF 14 TSF JUST BEFORE PLACING CONCRETE9 KEY SPREAD FOOTINGS AT LEAST 12"INTO ROCK WITH MINIMuM THICKNESS AS SHOWN ON THE PLANSe THE SCOUR CRITICAL ELEVATION IS THE BOTTOM OF FOOTINGoSCOUR CRITICAL ELEVATIONS ARE USED TO MONITOR POSSIBLE SCOUR PROBLEMS DURING THE LIFE OF THE STRUCTUREe FOR PILESqSEE SECTION q50 OF THE STANDARD SPECIFICATIONSo PILES AT EAST FOUNDATION ARE DESIGNED FOR A FACTORED RESISTANCE OF 85 TONS PER PILEo DRIVE PILES AT EAST FOUNDATION TO A REQUIRED DRIVING RESISTANCE OF 145 TONS PER PILEo PILE EXCAVATION IS REDUIRED TO INSTALL PILES AT EAST FOUNDATION� EXCAVATE HOLES AT PILE LOCATIONS TO ELEVATION 19978°0 FTe AND HAVE AT LEAST 5 FEET OF PENETRATION INTO WEATHERED ROCK OR CRYSTALLINE ROCKoSEE SECTION 450 OF THE STANDARD SPECIFICATIONSo CONCRETE IS REQUIRED TO FILL HOLES FOR PILE EXCAVATION AT EAST FOUNDATION� ����,, � � � � � � �,,,,,, �,.� ,��, C A R� '�., ,� Q� �,,����,,, <�y% : ��,.o�Ess�o�; q : = =a SEAL ��= = _ = 20777 = _ ' F �Q` : �: y :, ti�i N� ,:' � . ��iQ�Q ������iii���\���`��� ,, � Y �, ���''��������������`. DOCUMENT NOT CONSIDERED FINAL UNLESS ALL SIGNATURES COMPLETED Middlesboro, ❑ Kentucky 606•248•6600 Knoxville, ❑ Tennessee 865•546•5800 Vaughn & Melfon Qsheville, Consulting Engineers ■ North Corolino 828�253•2796 Copyrignt p 2006 Voughn & Melton, Inc. AIIRiqhts Reseryetl PROJECT NOo 17BPo1qoRo1q0 MACoN COUNTY STAT IONo 1q+12o17 —L— SHEET 1 OF 9 DRAINN BYo FRJ DATEo 8/2016 CHECKED BYo HLW DATEo 8/2016 No � ENGo OF RECORDo JEB DATEo 8/2016 � REPLACES BRIDGE NOo64 STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION RALEIGH GENERAL DRAWING PRECAST REINFORCED CONCRETE THREE—SIDED CULVERT990° SKE� ALONG �ATAUGA CREEK ON SR 1328 (JIM BERRY ROAD) BET�EEN SR 1335 AND SR 1330 REVISIONS SHEET NOa BY: DATE: N0. 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I WV3� � I _---- F�- -- � _, - - -�- - __ � __ � � i - � _ - - -- -- - - - -- - - _ - -- - -- -- ADDITIOIvIAL INFORMATIORI AI�ID COMP�l1TATIOrJS DRAINAGE AREA = 7.b8 SQ. MI. _ - __ -- . _ - - - - - -- - ---- - - ... - -....... USGS RURAL REGRESSION EQUATIONS 2009-5158 __ _-- - - -- - - HYDROLOGIC REGION - BLUE RiDGE (REGION 2) __ _ -- -----0 ]36 -- - Q�o= 288 (DA) 1290 > 1300 CFS - . _ - -- - ona Qi$= 398 (DA) 1740 -> 1700 CFS (50 YR NOT USED IN HEGRAS MODEL) - - - - - _ -- -- 0�13 ___ ' __ _____ _ _ _ _ _ _ Q�Qo= 575 (DA) 2460 => 2500 CFS -- -..... _ -- - -- -- - 0 ]04 Qsao- �94 (DA) - 3340 > 3300 CFS - - - - -_ _.. - - _... _.. -- -- - -- _... - - -- FIS 100-YEAR DISCHARGE: 2740 CF5 HEC 18 Culvert Scour Equation (6.10) (OVERTOPPING): Left: Ymax 0.84*�Q„^0.28)*(Q/(W�*(D,^0333))^0.26) Ymax 0.84*(49^0.28)*((2045(40*0.00328"0333j))0.26) Ymax 11.4 Ys=Ymax-YO Y5=11.4-6.94 Ys=4.46 Right: Ymax - 0.84*(Qa^0.28�*(Q/(W�*(D�^0333))^0.26j Ymax 0.84*(68"0.28)*�(2045/(40*(0.00328^0.333)))"0.26) Ymax 12.49 ------------. _ ._....... ...----- --- ---------- - -._.... ..._.... . _._ . .. _ .. .._ . .. Ys=Ymax-YO Ys=12.49-6.94 Ys=5.55 � -. _ - -_.. THIS PROJECT FOLLOWS SUB-REGIONAL TIER GUIDELINES THIS PROJECT COMPLIES WITH LOCAL FLOODPLAIN MANAGEPAENT REGULATBONS. - - --- - - - - __. _..._ -- NO INSURABLE STRUCTURES WILL BE ADVERSELY IMPACTED BV THIS PROJECT � �, � - OL O�l 0 ,, i- ' �_ ` '_'� I� � obz o� ob� os o o�-- o z - - -- � � � - -- - ! �� � - - - - -- - - _ - - - -- - - - - - - -- -- - - - __ _ __ - - - -- - - - -- _- - -_ __ _ - _ _ __ -_ __ _ - , SITE DATA � �, � Drainage Area ____.____.__��68_5Q�_ �`'���__.______......_. Source ._... USGS TOPO MAPS "CORBIN KNOB" &"GREENS CREEK" ', �: R��e� sa5in ......_ urr�e reNNessee _. cha���er ___ _____ Rugai ___ __ _ '', N, CULVERT SURVEY & MYDRAULIC DESIGI�I REPORT �'( M N. C. DEPARTMENT OF TRANSPORTATION Stream Classification (Such as Trout, High Quality Water, etc.) .._..___.__....._...C;Tr , � DIVISIOi�B OF HIGHWAYS -_ ; Data on Existing Structure .�..@__�5'-6";TIMBER FLOOR ON STEEL I BEAMS;E.BTS:TIMBER CAPYfIMBER POST&SILLS u' HYD�LEIGHSN. CNIT a: c� Total Waterway Opening ____ 123____s.f. Wa4erway Opening Below 100yr. WS EL.__ ___723_._s.f. Q ; Debris Potential: Low ❑ Modera4e � High ❑ ' a I D No. BD-5114AG_._.__ Projeci No. ___ ___ 45360.1.33 • 14+12.17 -L- Data on Structures Up and Down S4ream UPSTREAM: 3 RCBC BARRELS @ 9' X 11', STR# 337 3; -- P � Statcon _. __ ...... __.. _... _.._. t9: County MACON _ - .._.... Stream .... GA CREE - __. . __ __... 5tru. No. _. - - -.. . -- - -- WATAU K o 064 � -.. . I SR 1335 DOWNSTREAM: 1 SPAN @ 74.5-FT. STEEL DECK ON STEEL I-BEAMS; CONC ABUT. _.. .. ...... .. � On Highway_ SR 7328 (JIM BERRY RD) gefiveen ISANDERSTOWId RD) and ___ SR 1330 (LYLE MILL RD) ' NONE ' �' Gage Station No. _.. Period of Records __ __________.._ ,____wA.. _...... Y ' Recommended S9ructure �@...40 X 7' PRECAST REINFORCED CONCREfE BOX CULVERT W/HEADWALLS AND ' ' m�: _ _ _______ _ ___...... ......... ...__'__ rs. - - -- _....._. Max. Discharge.. _.._ WQ .............. c.$s Dafe..---.------. WA----------------._ Frequency ..--- - wp_. ._...... oi WING�M'ALLS, WITH 6" TOP BEVEL ' Historical Flood Information: __.... _. _ ____- ._- - ---- -..._ ; N ......... __"_._ __-____- ________ ......._ ..._._. ' � 20'-0" EP TO EP Period of �, Recommended Width of Roadway ____________ (....... ._1_________ __________ Skew ...._. 90� Date.....072013 1998J 5_ Chad Wodraska _.... Elev. ___A.Est. Freq. --_ yc Source Knowledge_... 1__yrs. o' ! Jerry Schuler TS-1 Period of ; u"�i', Recommended Location is (Up, P�i, Down) $tream from Existing Crossing.___AT EXISTING CROSSING Date..... 7994 EIev.2002.1 -ft.Est. Freq..��-+---yr. Source Bridge Maintenance---_- Knowled9e 31---Yrs. i °' ; LL Statewide Tier ❑ Regional Tier ❑ SulrRegiondl Tier � Allowable HW Elev. ._.EXISTING 100 YR. WSE - 2003.44' {} PJormal Water Surface Elev. LL 1994 �, fr� BM #2 - 8" SPIKE IN ROOT OF 36" SYCAMORE, 68.50 LT OF STA. 15+94.11 -L- ; ! � Bench Mark is __..___. - - - __ - --- - _ ___._ _ _._... I Manning's n: Left O.B. 0.080 0.100 Channel.._0,045_ Righ4 0.6.0.08Q0.100 Obtained From EFFECTIVE_ FIS_ j Non-Encroachment N 565528.67 E 696539.55 Elev. ._..2019.06'....ft. �atum. _._NAVD88 �I `o ------ ---------- ---.._ ........ .......--- -- - ---------------- LIMITED pETAIL MAY 4, 2009 tO Flood Study/Status -- ------------ ----�----- _____---� ._----------------- Established? _.YES ', ,� ' ' o: Temporary Crossing ..WA {OFF-SITE �EfOUR)_ _ With Without �o: - ___ _._... _ _... - Flood Study 700 yr. Discharge _ 2740_ t.¢.s.; WS Elev.: iVon-Encroachment �003.1Oft.Non-encraachmentz002.95� , �, @River Station 29b0.265 (Duplicate Effective) ' �; _ - - -- - _ _ _ ___ S�I � ' ,� �, , - DESIGN DATA o `� �� � i, �� �� � '" ��! �f� ��� � ' . �^ . ' Hydrological Method .. SIR 2009-5158 REGRESSION EQUATIONS � � � Y ''��- '��.,.` � p� ; �F f .-""�' � � ' Hydraulic Design Method HEC-RAS V 4.1.0 550064.PRJ �- ��� � �" ' F��., __ ; . . . ....-- ( --- -- - ) -- - - - - - - -- - ----._ ...._ Q: � -- `' �,.: .. , �i -_ .: = � �$ , 1-�5- Design Tailwater � Q 5.3 {{.� (� 6.0 r✓a 6J6 7.4 _ --_ , �a . zs - fr'% �so- - - fr�%Qioo -- -- -ft•� Qsoa - - ft ^ sr� � _. �. I �' �E� -- � �� - Inlet Conirol Ouilei Control '�, �',, ,; ���' � v,��, �; �� � � I �� �� _ Size & Type (aas.) Ke HWiD �11W. dc dc2D ho H LSo H.��W. Remarks �', o' .1 _s,.-. � _ ��- _. . - - ; Z �F' .. � . :.:,.. . - _ `�`=�, � -.. --. . ,. . -- . p-�'•= ' . �� _ � t, t -, I'StY.�� ,. .. �' . . 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RIDNOUR, P E. : _ --------------------ft• Assisted by: _. ... � i S F_ aA L -- _ Desi n: Dischar e. r Elev � ' 033023 ' = 2500 ev. Ta en @ River tation'2�9�76.045 2003.05 ff 3' Project Engineer : HARDY WILLIS. P.E. P�•, ;°� _ - a _ , Base Flood: Discharge . c.fs. Frequ�ency _.. __.yr. Elev __--.. , E -� �,� �j `4 90'FFNGINEER.•'��,^s , Overtopping: Discharge . 2100 c.fs. Frequency.---_-_.--- 25+ y 2002.3 Reviewed y _,�i �.... __-.-- Y......••R�Q.,p.., °m 6 : ��" / .�" `�' -. '`. � _..... r. Elev. __ -- - - _ft. ;� �y� r„�a S, � i%�'i�/..5' J,_ �nyueuiinixxim,nn��Q � � Q/�dJC.2s�, 5 %�m,pcvt, PE /mtAn I nnlWel �„I�-0N.OIIYB�rts No rn�tnsToiuc on ttisToiuc eao��raTi rs PBICS6N'f/AI�R�C'1'LD I�OItYl vnn.n:cr mnonaanr�orv nn/earNnr B0.s119nti Connrx� Mnaon 0'6CNu. d9(OJp Docnnrem. 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IInF proyetl)' ie InoTm1 m:Le mnAi al Wmungn Gvrk eml uum�Alnµ m Ne NC uro y������r dm.Un rir,��n n�� a�..����� co���ur ���nn��o�,�i a��rvay, �. n mm i7"..iva�y s�lei ��m w�rii LY llin 9euy.11�e le�ee nood fnmr, gnM1�vJmot mill mitli aluno fam�Julion nnA bes<mon n�vrnmtl mni� ILe IY�IUa ymdming mni. Ilauq vFePl, nnil olherpmAnds A(mi If Mllpb Inrv (Ilorv 40va2d In vluyl si�Li�ouNeyiol��* uvvccredhY�n.yn�alumrJmoLfir_n9m �nfil�omxniietlicun�iry).mid ¢ulume a aiJupoblN �nu�i'wpL �kop powli sippo�RJ hy Mied pillure e�ap p�er, knFe bnees vlouF �hu and fn�aoevornnasuxL mindmve. .r..a ... extmanm a�mt � . . n.,...�s.�:,.eunm �oF, �.,x�.m....,e Onyc I nf.l enili in �961, �dJge N.i. Ga baxnm ye� Oern oanloeizd mliM1Li iM1a NCUOTHIaorlo pi'i�gaSurvav bie is palw�nrn brlA6ey'IwanAloeksmry�llstuwlive onbiuoann'hurLitorl�isl6��lllavnaem Lcouns�Mrtd fur cllgiLiG�yimM1e NeilonnlRcglaw a(IlLmric Plxeos(PRIIP).Alrolocamd wl�liin�ho APGaremme G:n�v ledc widn n�idamen�iatl� aeumry rxiM1a'nce N�'UO'I' Hltlnele ArWiilMweliiee0 ominillnnl CIn3. (i:iRnL�:iiL Arnm Viv�nn'eiiun survi.urlue�niJna e11AA s��r.oY an�Ilvlliermvevli6��uiheV�+lweinl furti�dr.V�el�enir,miiM1uiiLel��olen N•F Hanrvip�wsconJ�¢'iu16y.NnGn�L�M1mitinveuNerY6,L01].TvopmVa�i.+soverlM1eab ofC:Ry yemsrvuxlacamtl+vllLli�llw AI`N,6inluJinq Nepmvio�aly maorleellim tlrny Haimonnd ndll(MA VMJl IL�auJy�li�w�Uini�vrty MOlu-n (o�ind m benolonge[srainiiup x�iAwsmelzllyinrniu•. unxlsting eH� Fnne @wJnllan anlp np �rcll �ema m��neb9maluml JowenisnnA runi�nnis o! n. nup'. 'Il�crlrvWun'invouiV�iell over6mrvn millireyeLJion unJlmFn:n�Y`°^IlnmwoLMwiil snlnwJaniLeNC�uJy-IiFinl99d,1 FiymAe��xlliimiwLlubenmcWealinmgriryn�ilrsiniil utill iuumi Gnrnulp� li dmxnni relnln eio�u�L� unilv/ul inWpiily W F. oourlJomd clifl�Lk. � r ilm NIUIP. Fnnhannm�e,Lle�a4nvkimniArc�enlnypmnninrel,v15�1! 6.�nniticufilwAPR.nndwlllllkdvimt heNvinPoctlFymridinc�mnnn�ivnxsasnciuioAwiililL�I��VIwLlLcassnoLLLctlm 19NnLn��gnlorv likw�m�o� otVa3 oughlmepiily�rhi.0tienlln¢hi�acln�alei@nifirnnceonitsom�mme�ii � Indh�i�nnl rl!g�billly �o ILe Nlll ll'. A ui. 19'�G Imnsv WumJ n� IOi^i Jim be�'rvy IionJ �vornlmsnmiiyel ➢fls JmeIIGiN �so niWestaieeloiy SLeMroolRnme Im�rseimilu5 on n wuuue b'o[Y (omiAallon nn�i xmtlkibawiMur�IJ�nimnn4lfnp_ILoliaums �oMublvndAi�vcN'mW�ulup�rteW�iavxnJ i�luv m pus ss9uNoeull�I�loA�rornmltl�mwrW�iguilivmiwlnbacoueitlaRdpAIElFIe TiYImIVRI1P. Pa��IM1nL���Acinldonilmlicl�lsurvqv,l��� ���I�vullimL�xlHiAuricrA;ulii�ecWrx�Hwnnaeu5wvo>• id Rs[t [e Ropor�Io�ILiz�v.Jcci.�fl�e�ebiq Nf1101'Hlmnnc AroLimamro nv�kaen fiidlnB of A Ili �'vil4an 'Nn MNo�b Vmy:rvG�s YnscWAlRv'reA" Nr �LIe prvjatl. �mmn(sl prre�m�s s����.zy e�r��. G�lr��w�„� f�c„���.bn���n��,�z Oue,��� rw�s �,irvmNr. uv rvcno�� nacinTr•.crurzn�, msroamrv ❑Islo�Ic ilrohi[eGum nnA Lsudsrnpes—no wet owe viwve�mcs entis�x'iroti nPvec�co rr'��'I. �wtt¢tb ia�ia NCI%1A'Vrl'lleoViml Hisiminn DNc �nmie.xu�mninar.u.w.ne�.nn'ontaonnmvu¢mila�'niaxM�nFn�mCimµmp.�ni..nivrM�minuml�*xr@..Mnuim.im� �n�.ww.nrsev.rmuv vAyez�,r� �ti. „�o„w.��.,��u„�.,�.u.�„��.�,������n,�,n.ri�,.n.�.�.�.,.........,.i.��aiN�...�z� .,.w........w..... PnL'elof.l unrvweunw.ernxxo..an.w�nnmvnxRm�nnnMpuvxmxawnnmM1..p..ae..rm..�.n�n.e'�w..�µqn.um.dmn r..�......,,,, �m*.�i. Pnge J ol'J Generzl ViciniTy of eritlge#fi6 over Watau9a Creek on SR 1328 (Jim eerry RoaE) .�q . __.—. _—__ _ —_ _ ._ _ . _ -- — _ . ecY�V . _ .. . : �al� .._ FraLLta _ `v— :a.i:-v=� �,cy,•y]i:.�- _.�m -r..=.�r. . -..rJ :.'3yb:`:. 3ritlge q64 - USGS Quatl Map - Corbin Knob v �SOV 4 � ��� - Rac� _ ..��� �,_� ... '. ;, _r _ � - �� �N D \~: �i - �� ��J ���� —� —�� � � ,°� . I � i� 2i ;. 3.." 1 ^ ' .• : .4. ,��� ��A 7 ��r _ __ _ -� 1 � '�.� _ `J�° 3' , I � �, ���� �; _.y'Jj"', . . �,�� � \ ✓4.�✓ / �/- R F �� 1 � _ j �� . NG HPO GIS Maco:� Coun�,r � ������ _ � � - d „ � �l �- �, _ �� � : -«�- .s -�A' = � F'i"' -� �_�.� � _ . 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Fa�W. ... _. .. ..I .,n I � ( eon r+n„rmp� �.1 s.a i �..� a�,<..n: C fl nlc.:.,o.H . . . - n . . __ _ . i _'_ � . . . . . - .. _. � � wn. wnuanw<n..i,n � .�. o - _ . . . . . _ - ='� �,. . � � a um=,.•uu,m..� m�.�nn �_ `�p,i�..�� e�yy'i. �,�M�,n�o�,�.��� � _ �u. ewws o� �;.��n�unu ««.,.,,u: __ __ __ ei i v�:� o� ai�aiow�.. � ;_ -� i � _� -_ -_ � -_.�. :� � r , ' . � �a II[6 . � _. �s�L ur I.! �. �7 � il ��4,� �'I � _L, �13ei�i i�.� .z. li- ��v"_i�1�_1 nii�� . . o--;h I � r( r�n�✓�-1c^� . � eo s�ra iw . a .M .r.� � �NiR��% Ps .. . . 1 � ' _ . � . � ll h� j�]71 \ � �" 14��.� �����\ ;��' "t`�R 6 - _ A �r � �1 I � � .. . . .J . . . / � � h�9. �: . . � . II�: ll , . . .. I � �� _� .1 y � . �� �� � � , ,.,:,, I, , � ' � �� a�., � i �r �o-'+, � � �„r�iW.� - _ '�' , c.�� � � �,�a. `u�e���:�,, t � - , `+r<�c �� _ ._ - . i Jlm Uei'�y Ilouee nn� Hill 6'. afAo n! Sp 18?0, 0.4 n1. 3. of jct. e/ SA 13J5 Alm 9arry bulll. I.LIn mlll nu N¢tflapn Grca4 In �Fe 1¢Le �iuotoo��u� �a�wry; u�u eovse rvas o�ut m�no oa�iy Urxntlath nant��rv. ILte 1¢r6^ m111 M1nn n st�nc [omtl�llon nnrl u qxLle. ronL Much et fhe oriyinal Lxrdvm'a in Intacl molnJiog Iho �Iriva Le1L nn�t $�'inder. TLn rv�J.atnLnal hnp benn inmoraJ. Corn entl (lour vore Ni'uunJ n1. Lple mlll v�lcM1 apurnted unl.11 Lh¢ 144�z. l'M1c Hcrr)' M1oun¢ la nn onrly I.vent�pf� nontmry bnngulow bltL N�nix brneca nlm�g Lhc uuvva hlitl 8/I vin�lamp. I�c fi'm6 pofch (eM1bn'ne (Iqi`c� plllu�e etop P�o�A. H6TOftlC AftCHRERURAI. flE5(ll1RCE550flVEV W IlFCONN0I.SSANCF PEPORT Stare-funJed 9iidge Peplacement Prograin - Oivision 14 WBSP45361.133 Neplace Nritlge No.69 on SR 1328 over Watauga Creek, Macon [ounty qn n-zlte na s vey ul the pmjeU a on�u[lell on Novurti6m 46. 2�L� anA all IC�roul[es wilhln ih� AreB of PoL2�ItlaI�EiI2c15 �APE� ML•2 yllotwm�lhed to [M1e e#ent �ossible Imm puplic �I€M1(bf-v�aR 9Natxtl ashort tlisaca nor[h ot N�e mwn oiFranklin, �ritlge Nu. W Is lo<alu[I on Lm Bei�y P�d (SF 132&) appmdn�stelV 1.1 inlles norlM1 of i[s Intersection wI1M1 Lake Fmory Roatl ISR 13251 The bndge Is lowtetl �ust wes[ . a 50-degree mrvs In che road, wFe:e lim Reny PuaJ Intersectz I yle Mill Roa<I �SR 1330J, The exrstinG bridQ¢, bnJ� ln L961, Is a cummon sin@lespan sV�.itture Ihat Is not sitleretl ellglble fo� IM1e Na[I�nal Pegis(ec TM1p AFE is dra n ko 24� (ee� fmm elthe� end ol [M1e hrldge and 50 feut fmm IM1e centeiline oi IFe inadw In ztltlllion lo Ih=Lntlye, �wu pmpuM1les aw�lifly yEa�s of aCe a�e lo[aletl wilh'm lM1e APE ➢'iQUAing [M1e p�eviwslY r¢wrtletl liin Beny House antl MIII �MA 901. i�e mlll bullding w s appmved ior Ihe StwAy Lizt m L41. N tlustei' of modern ihetls ai agrl¢ANal�outbu9dings locacetl on v�¢ r.orlM1 s10e ot roatl are asmciaretl wl�h avo la e- twer�tlenc �enNry n acmred M1uurez loaated up on lbs hlll abwe �Fe bwldingz. The area m �he mniFwestof �he bndge co �s�s of open agnwl[nal tleltls. lim BerrV House anal Miil �MA 99�, 9fi8lim Berry PoaQ aa. 1890, oa. I9).5 �VIN 65966563]Sj TFt llm Derty House anal MIII pmperty Is localed lu IAe soutM1wep� secEon o( e sM1ary heritl in �iin oerry IVoad (SP l3le�. lhe mlll bulltlmC� whioh was placeJ on the 9udy OA In 1999, iz no longe� stantliug- ReduoerJ ro min; [heleuntlaBons �f �he pYe- mn- nvhcemryfiam seuniedmlhemut�eflheM1oure. ��LFe M1ouse. wFIM�RIh n t lhe [ � Me matl, L= a o�V sitle-gahle Gaflsm minNue ceA hame Awellmg fbat Lkely dalm Irom the nuA-192A. PestlnG o bdak founOatIDo. tlre house 15 P�exently m eree vinyl sleing antl k cnppetl by ai aspM1altzM1ingle mol. The hume IeaWres a�ni�eno� bilck cM1Lnney, niengular eaee b2cke6 In the gablE entls, a aFa<M1ed fmnFgaLle encry poati.antl eM1ree-ovxi--one tlouh!e-M1ung wintlows. Tnu pmtli �s zvppmteJ Ly IapereA woo� posls on bdck ylers w¢Yi mnvete caps. iwo shetl tlormers are loca:etl on [M1e rear mo'rslope, an� a one- stury shed+vef wing pm ects Io thE r. Ari at2die9, e�vat�al wuud de�k nn �Fe rear uleva�ion Fas de�etlorated m:he point �M1a[ it ureal asxn open s�e� wl[M1 �M1e Hmr oRM1e ae�x:er���€ �: n,e,00� or me.neue,. me i�m aeny eo�se .nn mm noes no� anpeai w i�e eiigime ro� n�e �uatlonai ne�t iec me nmeieenn.cemorv �,nl e�uaine �,o io�€e� •ea�ds a�,a me adamo� ot ���vi ,im�e m me r.��,e se�e�ery �o��n�om!re �ee �:ism�;� m�e.my ar me r�noenv. tee h0U TrkdMp P mplp n( d atly-t� n mIM1 century residenlial se I5 an uniem et krm embelLsAed .mtM1 Uhflsmai+infli.ienced eLmen�s. 0.s a re.ailN� tloes nal posess a��V Parnwlar hfsmnc orarcM1i[ecmrnl zynlflc�nre Na[ woultl 0�ality I[ hir Intluslon on thie Nationrl Register. �vme Prese�vailm 5enmes No�reoiosrmiz HISTOPIC NflCHRERUHNL hESU11PCE5 SIIPVEV & RFtONNMSSFNCE PEPORT Sla[e-fundetl Oritl6e Replacement Prograin -�ivision 16 W65N05361.133 Huusa,10591im BerfV Roatl, [a.19i6 [PIN 659G655625� tMeiiotles[one-storys�etl-molha edwellingwasllkelyhulltassmallvacatinn ana��nal house. Silua[erl ba[k bom tM1e macl, II r�c[s on a conae[e b:oek foundetlon coveren w�m noom��m-�arce�� simns. �i,e n�emi-cmnsn�i �oof siones f.on� ohe ,ore,wes� �sne m me :ouu,ea.e, p,e:emme a� a:vmmenmai �awa�. me noum a entered �bmuyM1 a� Ive� zcreerietl porth at the soutM1eaA mrner. Vl,-Lle wlntlows are mo�ern plate�gWss. A small, open pavllion I51ou�eE SoutM1 o(tM1e FouSe. SUPVutle� on bra[ketetl ootl 0�"'s, ll'ie gaMe i'ooi 5[mRme tllsplsys me�al mofing, exVosed mof fiaming. antl wootl lattiee In Me gable mds. TFe house � nnNstlngnishetl example of v mitl-LwentleM cenwry resi�lence ntl Uoc oot xypes� Io Gog. . suffident hlstotic or aral[ecNral signlficaore to be d 5 �es eligl�le �or Me Nahor.al Regute:. 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WBS N 45361.1.33 Biological Assessment For Replacement of Bridge No. 64 on SR 1328 Over Watauga Creek Macon County, North Carolina WBS Element # 17BP.14.R.140 Prepared For: 4 pORTq ti4. A90 y � v $f SQBP� OF Z!�� NC Department of Transportation Raleigh, North Carolina Contact Person: Jared Gray Biological Surveys Group North Carolina Department of Transportation j��-a�a,ncdot. gov 1598 Mail Service Center Raleigh NC 27699-1598 June 22, 2017 Prepared by: 900 Ridgefield Drive, Suite 350 Raleigh, NC 27609 Contact Person: Neil Medlin Senior Project Scientist mnedlin@rl�l�.com 919-878-9560 Table of Contents 1.0 Introduction 2.0 Project Description 2.1 Purpose and Need Statement 2.2 Construction 23 Defined Action Area 3.0 Environmental Baseline 3.1 Spotfin Chub (Erimonax monachus) 3.1.1 Characteristics 31.2 Distribution and Habitat Requirements 3.1.3 Threats to Spotfin Chub 4.0 Survey Information for the Proposed Action 5.0 Avoidance and Minimization Measures 6.0 Projects Effects on Spotfin Chub 6.1 Direct Effects 6.2 Indirect Effects 6.3 Cumulative Effects 6.4 Conclusion 7.0 Critical Habitat 8.0 Additional Species 8.1 Bog Turtle (Glyptemys muhlenbergii) 8.2 Carolina Northern Flying Squirrel (Glaucomys sabrinus coloratus) 8.3 Gray Bat (Myotis grisescens) 8.4 Indian Bat (Myotis sodalist) 8.5 Northern Long-eared Bat (Myotis septentrionalis) 8.6 Appalachian Elktoe (Alasmidonta raveneliana) 8.7 Little-wing Pearlymussel (Pegias fabula) 8.8 Rusty-patched Bumble Bee (Bombus affinis) 8.9 Small Whorled Pogonia (Isotria medeoloides) 8.10 Virginia Spiraea (Spiraea virginiana) 8.11 Rock Gnome Lichen (Gymnoderma lineare) 9.0 References Appendix A. Figures: Figure 1: Project Vicinity & Survey Locations Figure 2: NCNHP Element Occurrences Figure 3: NPDES Dischargers and 303(d) Listed Streams Appendix B. NLEB Correspondence 1 1 1 2 2 3 4 4 4 4 5 6 9 9 9 9 10 10 10 10 10 11 11 11 12 12 12 13 13 13 14 1.0 Introduction The North Carolina Department of Transportation (NCDOT) proposes to replace Bridge No. 64 over Watauga Creek in Macon County (Appendix A, Figure 1). The purpose of this Biological Assessment (BA) is to review the proposed project in sufficient detail to determine whether the proposed action may affect any of the Federally protected species listed below, and specifically the Spotfin Chub. This BA is prepared in accordance with the legal requirements set forth under Section 7 of the Endangered Species Act (16 U.S.C. 1536(c)). The main channel of the Little Tennessee River, from the backwaters of Fontana Lake upstream to the North Carolina/Georgia State line, has been designated as Critical Habitat for Spotfin Chub. Critical Habitat for the Appalachian Elktoe exists on the mainstem of the Little Tennessee River from the Lake Emory Dam at Franklin, Macon County, NC, downstream to the backwaters of Fontana Reservoir in Swain County, North Carolina. As of Apri126, 2017, the U.S. Fish and Wildlife Service (USFWS or Service) listed 12 Federally protected species for Macon County (Table 1). Table 1. Federally Listed Species for Macon County, North Carolina Common Name Scientific Name Status Bog Turtle Glyptemys muhlenbergii T(S/A) Carolina Northern Flying Squirrel Glaucomys sabrinus coloratus Endangered Gray Bat Myotis grisescens Endangered(P/P) Indiana Bat Myotis sodalis Endangered(P/P) Northern Long-eared Bat Myotis septentrionalis Threatened Spotfin Chub Erimonax monachus Threatened Appalachian Elktoe Alasmidonta raveneliana Endangered Little-wing Pearlymussel Pegias fabula Endangered Rusty-patched Bumble Bee Bombus affinis Endangered Small Whorled Pogonia lsotria medeoloides Threatened Virginia Spiraea Spiraea virginiana Threatened Rock Gnome Lichen Gymnoderma lineare Endangered 2.0 Project Description NCDOT proposes to replace Bridge No. 64 on SR 1328 (Jim Berry Road) over Watauga Creek. Watauga Creek is located in the Little Tennessee River Basin (HUC# 06010202). The stream flows into the Little Tennessee River, approximately 0.5 stream miles below the Bridge 64 crossmg. 2.1 Purpose and Need Statement NCDOT Bridge Management Unit records indicate Bridge No. 64 has a sufficiency rating of 32.82 out of a possible 100 for a new structure. The bridge was constructed in 1961 and is Biological Assessment; Bridge No. 64, Macon County June 2017 Page 1 considered functionally obsolete according to Federal Highway Administration (FHWA) standards. Components of both the superstructure and substructure have experienced an increasing degree of deterioration that can no longer be addressed by maintenance activities. The posted weight limit on the bridge is only 15 tons for single vehicles and 31 tons for truck- tractor semitrailers. The bridge is approaching the end of its useful life. Replacement of the bridge will result in safer traffic operations. 2.2 Construction Bridge No. 64 is a one span structure that consists of an asphalt overlay on a wooden deck on steel I-beams supported by creosote treated wooden pilings. The existing bridge has an overall length (OAL) of 25 feet and six (6) inches. After the removal of the deck and I-beams, the end walls, including the sills, will be removed. Portions of the stream will be dewatered using Jersey barriers during the end wall removal. These areas will remain dewatered during excavation and bench construction. The existing bridge will be replaced with a 40-foot by 7-foot bottomless reinforced concrete box culvert with wingwalls. Class II rip rap will be used to stabilize the stream banks above, and below the culvert. The total distance of stream bank to be stabilized is approximately 1301inear feet along the western bank and approximately 105 feet along the eastern bank. The roadway construction has a general east-west orientation and extends for a total distance of roughly 200 linear feet. An offsite detour will be utilized during project construction. The detour route will be via SR 1335 (Sanderstown Road) and SR 1330 (Lyle Mill Road) (Figure 1). Given the small construction area, no utility relocations are anticipated in association with this proj ect. 2.3 Defined Action Area The project action area is defined as all areas to be affected directly or indirectly by the Federal action and not merely the immediate area involved in the action [50 CFR §402.02]. The action area for this project includes not only the footprint of the fill in waters of the U.S. (the direct effect), but also those areas of the waters downstream of the proposed fill that might reasonably be affected by the placement of that fill (the indirect effect), as well as those segments of the proposed road whose alignment is dictated by the proposed fill (the interrelated actions), and those segments of the road that would have no independent utility apart from the proposed fill (the interdependent actions). As such, the Endangered Species Act (ESA) action area for this project is within the footprint of the regulated activities in the delineated waters, in uplands immediately adjacent to those waters that would be affected due to the authorized work in waters of the U.S., in waters downstream that would be expected to be impacted by the proposed activities in waters of the U.S. and the uplands noted above, and the cumulative impacts that the activities authorized by the permit would have on those waters and associated uplands Biological Assessment; Bridge No. 64, Macon County June 2017 Page 2 the bridge centerline, and any areas receiving the runoff from the construction activity including the receiving stream extending 400 m(1314 ft) downstream and 100 m(328 ft) upstream of the structure. The stream bank stabilization activities would be included within this stream segment. A sediment transport study from a similar sized stream in adjacent Buncombe County indicated sediment discharge estimates from construction disturbance were dramatically lower 500 feet downstream from the disturbance. This data provides supports the action area's 400 m(1314 ft) downstream distance as sufficient to consider potential project effects. 3.0 Environmental Baseline This section briefly discusses the Little Tennessee River watershed in general as well as characterizing the Watauga Creek watershed in more detail. Also discussed in this section are the characteristics and current status of the Spotfin Chub. The Little Tennessee River begins in Georgia and flows into North Carolina and through the town of Franklin. The river has been impounded just below Franklin to create Lake Emory. From the Lake Emory Dam, the Little Tennessee River is free flowing until it reaches Fontana Lake. The proposed bridge replacement project on Watauga Creek is located in the Little Tennessee River Basin (HUC# 06010202). From the project site, Watauga Creek flows approximately 0.5 Stream miles to its confluence with the Little Tennessee River. The confluence of the Watauga Creek and the Little Tennessee River is less than 200 meters below the Lake Emory Dam. A review of NC Natural Heritage Program (NCNHP) records, last accessed June 13, 2017, indicated there is a known element occurrence (EO) for Spotfin Chub that includes the project location. This occurrence (EO ID 24088) was first observed on November 6, 1975 and last observed on May 20, 2015 (Figure 2). There are no NPDES dischargers on Watauga Creek (USEPA 2015). The nearest discharger is the Franklin Waste Water Treatment Plant (Permit No. NC0021547) roughly three miles away and it's receiving stream is the Little Tennessee River (Figure 3). Watauga Creek is on the North Carolina Department of Environmental Quality (NCDEQ, formerly NC Department of Environment and Natural Resources, NCDENR) - Division of Water Resources 2014 303(d) list of impaired streams and on the 2016 draft list. It is impaired based on exceeding fecal coliform bacteria criteria (Figure 3). The land use for the Watauga Creek watershed is mixed with some forested areas, residential, agricultural, and rural. From the project location, downstream to the Little Tennessee River, Watauga Creek flows through an area that is entirely deforested and appears to be primarily used as pasture. Biological Assessment; Bridge No. 64, Macon County June 2017 Page 3 3.1 Spotfin Chub (Erimonax monachus) 3.1.1 Characteristics Spotfin Chub, also known as Turquoise Shiner, was first described by Cope in 1868. The Spotfin Chub is a small, slender fish, not exceeding four inches (10.2 centimeters) in length. Juveniles, females, and non-breeding males have tan, gray, or olive colored backs, bright silvery sides, and white bellies. A dark spot is sometimes visible at the base of the tail. Large breeding males have olive or tan backs, brilliant iridescent turquoise or cobalt blue on the upper sides of their bodies and mid-sides, and bellies that are silvery cream. Their fins are satiny turquoise and sometimes have a gold glint. The Spotfin Chub spawns from mid-May to mid-August. Females deposit eggs in crevices between rocks. Males fertilize the eggs and stay to defend the eggs by swimming repeatedly over the nest site. Although some individuals may spawn at one year, most Spotfin Chub reach sexual maturity at two years. Spotfins apparently do not live beyond three years of age. 3.1.2 Distribution and Habitat Requirements Spotfin Chub are known historically from twelve Tennessee River tributaries in Virginia, Tennessee, North Carolina, Georgia, and Alabama. However, much of the species' historical habitat has been destroyed ar seriously altered. Today it survives in four isolated tributary systems including; the Buffalo River, Lewis County, Tennessee; Emory River (including the Obed River, Clear Creek, and Daddy's Creek), Morgan, Cumberland, and Fentress Counties, Tennessee; North Fork Holston River, Hawkins and Sullivan Counties, Tennessee; Scott and Washington Counties, Virginia; the Little Tennessee River, Macon and Swain Counties, North Carolina; and the Cheoah River, Graham County, North Carolina. Although Spotfin Chub no longer occupies all of its historical range, overall, the species appears to be stable if not increasing in the Little Tennessee River system in North Carolina. Multiple survey efforts over the last 20 years have continued to document the species presence in the Little Tennessee River and in a number of its tributaries below the Lake Emory Dam. A reintroduction and monitoring effort in the nearby Cheoah River has indicated a positive trend for the species with a summary report describing that Spotfin population as "doing very well". Spotfin Chub inhabit clear water over gravel, boulders, and bedrock in large creeks and medium- sized rivers having moderate current. This fish is rarely seen over sand, and appears to avoid silty areas. The exhibited preference to these substrate types is most likely due to this species' foraging strategy. The Spotfin Chub feeds by sight and taste on tiny insect larvae, predominantly chironomids and some mayflies, on the stream bottom. Unlike most other cyprinids (shiners), this species' feeds benthically on relatively silt-free substrates, using a head-oriented-down posture and a sewing-machine-like motion to pick larvae. 3.1.3 Threats to Spotfin Chub The threats to Spotfin Chub are similar to many other imperiled fish species and include population isolation and habitat fragmentation from dam and reservoir construction. In addition Biological Assessment; Bridge No. 64, Macon County June 2017 Page 4 to potential genetic isolation, smaller, more isolated populations are more susceptible to pollution, changes in water temperatures, and other anthropogenic stressors like stochastic events such as chemical spills (USFWS 1983). Sedimentation from agriculture, mining, development activities, unprotected stream buffers and other sources are a threat to all Spotfin Chub populations. 4.0 Survey Information for the Proposed Action. On October 11, 2016, Watauga Creek was surveyed over a reach from approximately 50 meters downstream of the project bridge on SR 1328 upstream to the bridge. This survey reach was more limited than is typical for rare fish surveys due to stream access concerns and the collection of the target species shortly after the survey commenced. A second fish survey was conducted in Watauga Creek approximately one mile upstream of the project bridge. The upstream survey reach extended upstream from US 441 and paralleled SR 1500 for a total distance of roughly 400 meters. The fish surveys at both locations were conducted using a Smith-Root model LR-24 backpack electrofishing unit and dip nets. The electro�shing unit was set to provide an output consistent with the nonlethal levels established by Holliman et. al., 2003. The stream was sampled with one biologist operating the electrofishing unit while the other biologists collected the stunned fish with dip nets. All stunned fish were collected and temporarily placed in five (5) gallon buckets filled with stream water. All fish were identified and released onsite. The current survey results document that the study area continues to be utilized by the Spotfin Chub. In addition to collecting the species at the project location, it was also documented in Watauga Creek not far below the site in the fall of 2016 (Andrew Henderson, USFWS, personal communication). Previous records and the NHP element occurrence also show the species has been documented at and near the project location. Based on the current survey results and other records documenting that the species utilizes Watauga Creek in the project area, replacing Bridge No. 64 will affect this species. A total of 20 species of fish were collected from the two locations surveyed in Watauga Creek in October 2016 (Table 2). At the Bridge No. 641ocation, 228 individuals representing 16 species, including one Spotfin Chub, were collected. Although no Spotfin Chub were documented at the upstream location, 375 individuals of 15 species were collected. Biological Assessment; Bridge No. 64, Macon County June 2017 Page 5 Table 2. Fish Species Collected for Watauga Creek on October 11, 2016 in Macon County, NC. Common Name S ecies Name No. Individuals SR 1328 US 441/SR 1500 Central Stoneroller Campostoma anomalum 95 31 Spotfin Chub Erimonax monachus 1 River Chub Nocomis micropogon 23 44 Whitetail Shiner Cyprinella galactura 36 Tennessee Shiner Notropis leuciodus 4 32 Telescope Shiner Notropis telescopus 15 86 Yellow�n Shiner Notropis lutipinnis 4 2 Warpaint Shiner Luxilus coccogenis 32 58 Fatlips Minnow Phenacobius crassilabrum 3 1 Blacknose Dace Rhinichthys obtusus 4 Northern Hogsucker Hypentelium nigricans 5 10 Black Redhorse Moxostoma duquesnei 1 Rock Bass Ambloplites rupestris 3 Green Sunfish Lepomis cyanellus 3 Redbreast Sunfish Lepomis auritus 2 1 Smallmouth Bass Micropterus dolomieu 2 Banded Darter Etheostoma zonale 1 Greenfin Darter Etheostoma chlorobranchium 2 Gilt Darter Percina evides 6 10 Mottled Sculpin Cottus bairdii 31 55 Total No. Individuals 228 375 Total Species 16 15 Electrofishing Seconds 856 1066 5.0 Avoidance and Minimization Measures Standard Measures The following "Design Standards in Sensitive Watersheds" [15A NCAC 04B.0124 (b) —(e)] are incorporated into NCDOT projects that occur within or upstream of water bodies that contain federally protected aquatic species. Environmentally Sensitive Areas for this bridge replacement project will be identified as the impact area in waters of the U.S. and the associated uplands immediately adjacent to those waters that would be affected, as defined in Section 2.3. The upland portions of the Environmentally Sensitive Areas adjacent to the construction areas shall be flagged prior to the start of construction. Within the Environmentally Sensitive Areas, the following shall apply: In areas identified as Environmentally Sensitive Areas, the Contractor may perform clearing operations but not grubbing operation until immediately prior to beginning grading operations. Biological Assessment; Bridge No. 64, Macon County June 2017 Page 6 Once grading operations begin in identified Environmentally Sensitive Areas, work shall progress in a continuous manner until complete. In areas identified as Environmentally Sensitive Areas, erosion control devices shall be installed immediately following the clearing operation. In areas identified as Environmentally Sensitive Areas, "Seeding Mulching" shall be performed on the areas disturbed by construction immediately following final grade establishment. In areas identified as Environmentally Sensitive Areas, seeding mulching shall be done in stages on cut and fill slopes that are greater than 20 feet in height measured along the slope or greater than two acres in area, whichever is less. Additional Measures The following are additional measures intended to further reduce deleterious construction related effects to the waterway: An offsite detour will be utilized for this project. Best Management Practices (BMPs) for bridge Demolition and Removal (NCDOT 2003) will be implemented during the removal of the existing bridge. No new bents will be constructed in the stream. New bents will be constructed at or beyond the top of bank. Deck drains will not be allowed to discharge directly into the stream. Removal of the existing bents will take place when water level is at a minimum point allowable within the project schedule and will be done in such a manner to minimize disturbance to the stream bed. Special sediment control fence will be installed along the top of the stream bank. Standard silt fence will be installed along the toe of slope parallel to the stream. Once the disturbed areas of the project draining to the special sediment control fence have been stabilized, the special sediment control fence and all built up sediment adjacent to the fence will be removed to natural ground and stabilized with a native grass mix. All sedimentation and erosion control measures, throughout the project limits, will be cleaned out when'/2 full with sediment, to ensure proper function of the measures. The amount of rip rap benching has been reduced from the original amount proposed. Rip rap slope protection will be installed simultaneously with the embankment construction. Biological Assessment; Bridge No. 64, Macon County June 2017 Page 7 Embankment construction and grading shall be managed in such a manner to prevent surface runoff/drainage from discharging untreated into the riparian buffer. Instead, all interim surfaces will be graded to drain to ten�porary erosion control devices. Temporary benns, ditches, etc. will be incorporated, as necessary, to treat teinporary runoff before discharging into the riparian buffer (as specified in the NCDOT BMP Manual). Active excavation ai•eas will be isolated using temporary flow diversion techniques. In addition to the above Avoidance and Minimization measures, as a conservation measure, NCDOT has installed baffles in a section of the concrete box culvert under US 441 upstream of the Bridge 64 project (Figure 4 below). The installation of the baffles will allow for inore effective fish passage, including Spotfin Chub, through the US 441 culvert. Given this premise, NCDOT looked for and proactively iinplemented this opportunity to assist �sh passage, specifically for Spotfin Chub, in the Watauga Creek drainage. Figure 4. Baffles in culvert under US 441 in Watauga Creek, Macon County, NC. �' a� u . . � �.�., 'l��*�� , � . �i Biological Assessment; Bridge No. 64, Macon County June 2017 Page 8 6.0 Project Effects on Spotfin Chub Project related threats to the Spotfin Chub can be separated into direct, indirect, and cumulative effects. Direct effects refer to consequences that are directly attributed to the construction of the project, such as land clearing, stream channelization, and erosion. Indirect effects are those effects that are caused by or will result from the proposed action and are later in time, but are still reasonably certain to occur. Cumulative effects are those effects of future State or private activities, not involving Federal activities, that are reasonably certain to occur within the action area of the Federal action subject to consultation [50 CFR §402.20]. Potential direct, indirect, and cumulative effects to the Spotfin Chub which may result from the replacement of Bridge No. 64 (17BP.14.R.140) are discussed below. 6.1 Direct Effects Spotfin Chub may be directly impacted by increased sedimentation and erosion during and immediately after construction. As Spotfin Chub is a crevice spawner, and this type of habitat could be affected, it will likely be impacted by sedimentation. Due to the sight feeding method of the species, it will also be impacted by turbidity. Enhanced sediment and erosion control measures during construction and the prescribed revegetation plan will decrease direct impacts to the Spotfin Chub. 6.2 Indirect Effects Indirect effects of the bridge replacement are likely to be minor and temporary. Flow patterns may be altered slightly during construction and could cause a change in erosion and sedimentation levels in Watauga Creek. This could affect Spotfin Chub as they prefer bare bedrock crevices for spawning. The more robust sediment and erosion controls measures being utilized for this project will help reduce the degree and duration of these potential effects. There will be some limited tree removal associated with the project due to direct construction or staging or operation of equipment. Any loss of shading has the potential to allow an increase in the amount of submerged aquatic vegetation or algae in areas that were previously shaded. The loss of shading also has the potential to cause an increase in water temperature in Watauga Creek. Over the long term, the loss of shading will be offset by the proposed live staking and overall revegetation plan for the project. There may be minor indirect effects as a result of the proposed project. 6.3 Cumulative Effects NCDOT is not aware of any other projects planned in the action area. There are two additional bridge replacement projects in the planning process on Watauga Creek upstream of the Bridge No.64 project location. These are: Bridge No. 214 (approximately 2.5 miles upstream of the current project) and Bridge No. 308 (approximately 3.5 miles upstream of the current project). Given the relatively high gradient of Watauga Creek above the Bridge No. 64 project location and the distance separating it from the two other planned bridge replacement projects, there should be no cumulative effects from the replacement of Bridge No. 64. Biological Assessment; Bridge No. 64, Macon County June 2017 Page 9 6.4 Conclusion Spotfin Chub have been documented in the project area. As such, NCDOT has committed to implement extra measures during construction in order to prevent the degradation of the stream habitat. Impacts to Watauga Creek will be minimized to the greatest extent practicable; however, unavoidable adverse effects to this species are expected to occur. These adverse effects are expected to be minor in scope and duration and not expected to affect the long-term viability of this population. The installation of the bottomless culvert at the project location and the installation of the baffles in the US 441 culvert will increase the ease with which Spotfin Chub could pass through these structures and access the upstream reaches of Watauga Creek. This increased ease of passage will be a beneficial effect to the species. 7.0 Critical Habitat No Critical Habitat for federally listed species has been designated on Watauga Creek. However, the section of the Little Tennessee River which Watauga Creek flows into has been designated as Critical Habitat for Spotfin Chub and Appalachian Elktoe. The suite of sediment and erosion control measures and the revegetation plan to be utilized at the Bridge 64 project site should prevent any effect on the designated Critical Habitat in the Little Tennessee River. In addition, a sediment transport study from a similar sized stream in adjacent Buncombe County indicated the project location was a sufficient distance upstream of the Critical Habitat that construction activities should not affect the Critical Habitat. 8.0 Additional Species As of June 19, 2017 the U.S. Fish and Wildlife Service (USFWS) listed the following Federally protected species for Macon County. 8.1 Bog Turtle Glyptemys muhlenbergii T(S/A) This species is listed as Threatened due to similarity of appearance with the species in its northern range. USFWS does not require consultation for species with this designation; therefore, this species is not considered further. 8.2 Carolina Northern Flying Squirrel Glaucomys sabrinus coloratus Endangered The Carolina Northern Flying Squirrel is found in spruce-fir forests and other isolated high elevation locations in western North Carolina. This nocturnal squirrel prefers the ecotone between coniferous (red spruce, Fraser fir, or hemlock) and mature northern hardwood forests (beech, yellow birch, maple, hemlock, red oak, and buckeye), typically at elevations above 4,500 feet. In some instances, the squirrels may be found on narrow, north-facing valleys above 4,000 feet. Both forest types are used to search for food and the hardwood forest is used for nesting sites. Mature forests with a thick evergreen understory and numerous snags are most preferable. In winter, squirrels inhabit tree cavities in older hardwoods, particularly yellow birch. The bridge site is much too low in elevation and lacks the forest components and other habitat conditions required by this species. Biological Assessment; Bridge No. 64, Macon County June 2017 Page 10 Biological Conclusion: No Effect 8.3 Gray Bat Myotis grisescens Endangered(P/P) Gray Bats usually roost in caves or in/on structures year round. No caves or mines are located within the action area of this project. The bridge replacement should not require blasting, but it will require pile driving (percussive activities). The bridge was surveyed for bats and evidence of bat roosting on August 5, 2014 and October 11, 2016 and none were evident. Another bridge survey will be conducted to confirm the absence of bats or evidence of bat use prior to bridge demolition. Biological Conclusion: No Effect 8.4 Indiana Bat Myotis sodalist Endangered(P/P) Indiana Bats only winter in caves or mines with stable, but not freezing, cold temperatures. During warm seasons Indiana Bats usually roost on/in structures, under the shaggy bark of live trees such as white oaks, sycamores, and hickories, or in cavities or under the loose peeling bark of dead trees. Approximately 13 large trees, including sycamores and black walnut as well as one large multi-trunked Leland cypress, will need to be removed for the project. Trees will be removed from October 15 to April 15 to avoid potential harm to bats that may be roosting. With the clearing restriction, the possibility of affecting this species will be greatly reduced. This project should not require blasting, but it will require pile driving (percussive activities). The bridge was surveyed for bats and evidence of bat roosting on August 5, 2014 and October 11, 2016 and none were evident. Another bridge survey will be conducted to confirm the absence of bats or evidence of bat use prior to bridge demolition. Biological Conclusion: May Affect: Not Likely to Adversely Affect 8.5 Northern Long-eared Bat (NLEB) Myotis septentrionalis Threatened During warm seasons NLEB usually roost on/in structures, in a variety of species of live trees, and dead snags. During the winter months, NLEB hibernate in caves and mines. Approximately 13 large trees, including sycamores and black walnut as well as one multi-trunked Leland cypress, will need to be removed for the project. Trees will be removed from October 15 to April 15 to avoid potential harm to bats that may be roosting. This project should not require blasting, but it will require pile driving (percussive activities). The bridge was surveyed for bats and evidence of bat roosting on August 5, 2014 and October 11, 2016 and none were evident; absence of bats or evidence of bat use will be confirmed prior to demolition. The bridge is situated in a"red HUC" where known NLEB maternity roosts and/or hibernacula are a concern. By email dated April 19, 2017, the Service (Andrew Henderson) notified NCDOT (Dave McHenry) that (1) the project is located more than'/4 mile from the nearest known hibernacula and more than 150 feet from the nearest known NLEB maternity roost and (2) there will be no prohibited incidental take of the NLEB; (see Appendix B for correspondence). Therefore, this Biological Assessment; Bridge No. 64, Macon County June 2017 Page ll project complies with the SLOPES process developed between the Asheville and Raleigh USFWS offices and the USACE, Wilmington District. 8.6 Appalachian Elktoe Alasmidonta raveneliana Endangered Appalachian Elktoe only occur in Macon County in the Little Tennessee River downstream from Lake Emory in Franklin. Although the Appalachian Elktoe population in the river has experienced a sharp decline in recent years, the Little Tennessee River is still considered to be occupied by the species. Watauga Creek is a tributary to the river below the dam, but mussels have not been found in this stream. Watauga Creek is too small and possibly cold for mussels. Bridge 64 is located approximately one half mile upstream from the river. Effective erosion controls should prevent adverse effects from the project to any mussels downstream in the Little Tennessee River. Biological Conclusion: May Affect; Not Likely to Adversely Affect 8.7 Little-wing Pearlymussel Pegias fabula Endangered The Little-wing Pearlymussel only occurs in Macon County in the Little Tennessee River downstream from Lake Emory in Franklin. Watauga Creek is a tributary to the river below the dam, but mussels have not been found in this stream. Watauga Creek is too small and possibly too cold for mussels. Though less than a mile upstream from the river, effective erosion controls should prevent adverse effects of the project on mussels downstream in the Little Tennessee River. Biological Conclusion: May Affect, Not Likely to Adversely Affect 8.8 Rusty-patched Bumble Bee Bombus affinis Endangered The Rusty-patched Bumble Bee (RPBB) is likely to be present in scattered locations that cover only about 0.1% of the species' historical range. It is within these limited areas USFWS recommends that federal agencies and others consider the need to consult with the Service on the potential effects of their actions or the potential need for an incidental take permits under section 10(a)(1)(B). For the remaining 99.9% of the historical range, USFWS advises agencies and others that this bumble bee is not likely to be present and that consultations or incidental take coverage is not necessary. The USFWS does not and will not require surveys for RPBB in North Carolina because they assume that the state is unoccupied by RPBB. Of course, if by chance, another survey discovers an existing RPBB population in NC, then that decision may change Biological Conclusion: N/A. USFWS does not require consultation for the vast majority of North Carolina including Macon County because the state is unoccupied by the species. Biological Assessment; Bridge No. 64, Macon County June 2017 Page 12 8.9 Small Whorled Pogonia lsotria medeoloides Threatened Small Whorled Pagonia most often occurs in open, dry, deciduous woods with acid soil, though habitats can include slopes along streams and mesic forest with white pine and rhododendron. Land use and cover adjacent to the bridge consists of maintained yards, drives, field, road shoulders, wooded hill slopes and creek banks. There is a wooded area with some open understory northwest of the bridge that will be impacted, but no Small Whorled Pagonia were observed during visits to the bridge site including surveys conducted on August 5, 2014 and October 11, 2016. There are no records for this plant within many miles of the project area. Biological Conclusion: No Effect 8.10 Virginia Spiraea Spiraea virginiana Threatened Virgnia Spiraea occurs along the Little Tennessee River upstream of Lake Emory and has been found along a small tributary to the river far below the dam. However, there are no scoured banks or gravel bars at the bridge that could support this plant. The species was not seen during visits to the bridge site including surveys conducted on August 5, 2014 and October 11, 2016. Biological Conclusion: No Effect 8.11 Rock Gnome Lichen Gymnoderma lineare Endangered The Rock Gnome Lichen is found in spruce-fir forests on rocky outcrop or cliff habitats at high elevation (typically above 5000 feet) locations in western North Carolina. However, Rock Gnome Lichen can occasionally be found at lower elevations in deep river gorges with high humidity or on some vertical rock faces that are periodically wet. The bridge site is much too low in elevation and lacks rock faces and other habitat conditions required by this species. Biological Conclusion: No Effect Biological Assessment; Bridge No. 64, Macon County June 2017 Page 13 7.0 References Holliman, F. M., J. B. Reynolds, and T. J. Kwak. 2003. A predictive risk model for electroshock- induced mortality of the endangered Cape Fear shiner. North American Journal of Fisheries Management 23: 905-912. Jenkins, R.E., and N.M. Burkhead. (1984). Description, biology, and the distribution of the Spotfin Chub, Hybopsis monacha, a threatened cyprinid fish of the Tennessee River drainage. Bulletin Alabama Museum of Natural History No. 8: 1— 30. LeGrand, Jr., H.E., J.T. Finnegan, S.E. McRae, S.P. Hall. 2010. Natural Heritage Program List of the Rare Animal Species of North Carolina. N.C. Natural Heritage Program, Raleigh, NC North Carolina Department of Transportation (NCDOT). BMPs for Construction and Maintenance Activities. August 2003. htt�s://connect.ncdot.�ov/projects/Roadway/RoadwayDesi dministrativeDocuments/B est%20Mana�ement%20Practices%20for%20Construction%20and%20Maintenance%20 Activities.pdf North Carolina Department of Transportation (NCDOT). Connect NCDOT - Guidance and Procedures_T&E Animal Habitat Descriptions Mar 6_2015. https://connect.ncdot. gov/resources/Environmental/Compliance%20Guides%20and%20P rocedures/TE%20Animal%20Habitat%20Descriptions%20Mar 6 2015.pdf North Carolina Department of Transportation (NCDOT). 2015 Draft-Technical Note. Extent of Sediment Transport from Excavation and Fill in a NC Mountain Stream. North Carolina Department of Natural Resources (NCDENR) - Division of Water Resources. 2014. 2014 North Carolina 303(d) List. http://portal.ncdenr.org/web/w /c�s/mtu/assessment North Carolina Natural Heritage Program (NCNHP). 2016. nheo-2017-04. Natural Heritage Element Occurrence polygon shapefile. April 12, 2017. North Carolina Wildlife Resources Commission. 2017. Captive Culture and Reintroduction of Priority Fishes and Mussels to Restore Cheoah River Populations. Unpublished Grant Report. North Carolina Wildlife Resources Commission Spotfin Chub species profile. http://www.ncwildlife.or Learning/Species/Fish/Spotfin-Chub#2525731-overview (Accessed O1/03/17). U.S. Fish and Wildlife Service. 2015. Spotfin Chub Species Profile. https://www.fws.gov/asheville/htmis/listed species/spotfin_chub.html (Accessed O1/03/17). Biological Assessment; Bridge No. 64, Macon County June 2017 Page 14 U.S. Fish and Wildlife Service. 2014. Spotfin Chub, Erimonax monachus, 5— Year Review: Summary and Evaluation. U.S. Fish and Wildlife Service, Asheville NC. 41pp. U.S. Fish and Wildlife Service. 1983. Spotfin Chub Recovery Plan. U.S. Fish and Wildlife Service, Atlanta, GA. 46 pp. U.S. Environmental Protection Agency Office of Water. NPDES facilities by permit type. NPDESPERMIT WMERC. https://watersgeo.epa. ov/arcgis/rest/services/OWPROGRAM/NPDESPERMIT_WMER C/MapServer Biological Assessment; Bridge No. 64, Macon County June 2017 Page 15 APPENDIX A Figures N �� • � � ,.,. � : h ..: ,., � , p + ��' 't� i . ''� f _ ,�„ /� �V' ��E � � .�, o,i� i , � - f';� � , .�' 1 �� ` ' � c , J� `-- �� � � , , r � y�� s,� ' � ,'.�►- � � � . , � � � �i -7-'Sa _ ,.\ �J�.. � _ 4 , / r, _ , f _,t r � �:i', � '� -. � _ � ���1 � y ' ' g 4!� � y^, a � }, ., . ... . . . 0 0 0 �� . 'i . �( . , . . � t � � ^ � �' i i���: ' . ��-�� .��. 7 . � � -, �, �• j USGS 7.5 Minute Quadrangle, Corbin Knob, NC k�� . ; �p ` `�4 s ,� � r,,,,�, �� m . ?�� � � � �x. ,�r��;� � , •• � _ �4 �S i q„ f � �,e 'Y :•.� - ,R � `_ + ' ` �µ � .,.�'�M1 ..;�� t ..��* �: � � a r ' i• . ..s. � � . � � � � lY {� Y ��.���� �� . _ , _ ► � � - "r � ,�� �' - x� � 3� I.w / T -< �� .� • 3 ' o � � ' F � . , 7<- a �'�. ��l ! �} �: 1 � �' � � {4 ^w 1 ." :. r-, . � � !�> -. "' �+� A . Xr�� _ . 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R. �yP� 0 9\ / • I� ol �9q �e/ � pP% y���� oF iFPHSp` IV � � � �:� � j � ~� 64 I , �OneMap, NC Cer�'t�� fio� Ce�c�rapf�c Ini��rq7at�y< rd N C N H P oate: June 2017 Element Occurrence S�a�e BRIDGE # 64 ON SR 1328 0 1 Miles �� OVER WATAUGA CREEK �obNo. ��gp.�q.R.140 17BP.14.R.140 Drawn by: DCW Checked by: KNM MACON COUNTY na'ly.sis�, NC 911 ,i .. . Figure 2 _ . �,� , .� ��+�.' �^_■ ' , �-#'_'. �� ` � tk—_: -' �.��'<< / \ � � � �f� —"�/ W E � r ) � 1 ./ , � . � J � \ /�` :��- t � � � �_ , � ��� r � � �,;. _ . , �� � � � � �:��-;.� . - -y. � --. � ;� _ _ � � � � � "� �-' ' �� �j � � .�� � � � � ��� � � ' . ����" � � �� _ � ��. � � i �--�_ � � � ' � . ^- : _ . '� � � ' , Lr � �� `,',�5�,^—' `� ` - � � , ,. t . �� �� � - � � � � 2% J � ,�� r, ; . - � , , , �. ,�, � � � . , � �� � � � � ,� � � NC0021 7 ( ' _ \ .— � . 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Thinking about the NLEB, as you mentioned, the known roosts are on the other side of the Little T, in Wolfpen Gap, much further away than the 150 ft radius from the project location, and there are no known hibernacula within 1/4 mile. So although the project site falls in a red HUC, this project meets criteria to be exempt under the 4d rule. The winter tree clearing is also something we can point to, as well as your repeated inspections of the existing structure for bat use and non-suitable roosting trees. However, if the DOT would like to go with a May AfFect, Not Likely to Adversely Affect for NLEB that is always an option. Either using the 4d or MANLAA works for us. Gray bat can also be mentioned briefly then dismissed as No Effect. I will not propose any conservation measures for bats on this project other than the measures you have already factored-in (multiple inspections for bat usage in differing seasons, winter tree clearing). Hope this helps