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Home My WebLink AboutHB-0001_DRAFT_CP1 Form_03-10-2021_for_signature March 10, 2021 Section 404/NEPA Merger Team Meeting Agreement Concurrence Point No. 1: Project Purpose &Need and Proposed Study Area ProjectName/Description:Replace the existing U.S.64 Tyrrell County Bridge No. 7 (Lindsay C. WarrenBridge)over the Alligator River in Tyrell and Dare Counties. The existing bridge is a two-lane, swing bridge and would be removed as part of the project. The proposed replacement structure would be a modern two-lane, high-level, fixed-span bridge. Total project length is approximately 4.64 miles, WBS No. 49475.1.1,StateTransportation Improvement Program (STIP) ProjectNo.HB-0001. Purposeand Need of Proposed Project The current bridge is experiencing substantial deterioration due to its age and structural deficiencies resulting in ongoing maintenance problems, jeopardizing its ability to provide a reliable connection between Columbia and Manns Harbor, Manteo, and the Outer Banks. The NEED for the project is demonstrated by the following summary of existing and projected conditions: Replacement is critical due to the age and structural deficiency of the bridge. The existing bridge is a 2.83-mile long, 2-lane bridge consisting of 343 spans with a moveable steel swing span. The bridge was constructed in 1960 and is classified as structurally deficient with a 31.71 rating of a possible 100. The existing bridge requires costly, heavy maintenance on a regular basis and requires constant smaller maintenance activities to keep the swing mechanism operational. Approximately 3 years ago a $17 million major rehab project was constructed, consisting of several hundred pile jackets, concrete repair, deck surfacing, and a major mechanical overhaul of the swing mechanism and controls. Similar rehabilitation efforts will be needed with the next 7 years. Even with the major rehab, the Division is required to perform regular work to maintain the swing mechanism, which has a history of malfunction resulting in closure of the bridge to vehicular travel. The mechanical parts, gears, and controls are not readily available and require custom fabrication with long lead times to acquire and replace. The existing Lindsay C. Warren bridge traffic will need to be maintained during construction of the new bridge. Depending on duration of construction, regular maintenance of the existing bridge may also need to occur. Vertical navigational clearance will need to be approved by the US Coast Guard and marine passage along the Intracoastal Waterway will need to be maintained during construction. HB-0001 Page 1 of3 March 10, 2021 The PURPOSE of the proposed project is to: To replace the existing 2.83-mile-long Lindsay C. Warren Bridge, Tyrrell County Bridge number 7, carrying US 64 across the Alligator River with a two-lane, high- level, fixed-span bridge. Project Study Area Theproposedprojectstudyareawasdevelopedtoaddresstheabove-statedpurposeand needforHB-0001.TheprojectstudyareaboundariesarefullydepictedonFigure1 ofthe MergerPacketand are described as follows: The project study area extends 250-feet on either side of the proposed HB-0001 centerline and 50-feet on either side of the existing Lindsay C. Warren bridge. The Project Team members have concurred, on this date of March 10, 2021, on the project purpose and needas stated above and theprojectstudy areafully depictedin Figure 1 of the Merger packet. HB-0001 Page 2 of3 March 10, 2021 Federal Highway Administration (Lead federal agency)Seth Wilcher DATE US Army Corps of Engineers Kyle Barnes DATE NC Division ofWater Resources ___________________________________________ Garcy Ward DATE NCDepartmentof Transportation John Conforti DATE US Environmental Protection Agency Amanetta Somerville DATE US Fish &Wildlife Service Gary Jordan DATE US Coast Guard (Fifth District) Hal Pitts DATE NOAA National Marine Fisheries Fritz Rohde DATE NCWildlife ResourcesCommission Travis WilsonDATE NC Division of Coastal Management Cathy Brittingham DATE NC DEQ Marine Fisheries James Harrison DATE NCState Preservation Office Renee Gledhill-Early DATE Alligator River National Wildlife Refuge Becky HarrisonDATE Albemarle RPO Angela Welsh DATE HB-0001 Page 3 of3