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Home My WebLink AboutHB-0001_CP4B_MergerMeetingSummary_finalMeeting from the Interagency 4B Hydraulic Design Review Meeting State Project 49475.1.1 (1113-0001) in Dare/Tyrrell County F.A. Project: NHPB-0001(156) Meeting Date: April 20, 2022 Minutes Date: June 10, 2022 Team Members: Seth Wilcher, FHWA Kyle Barnes, Corps of Engineers Fritz Rohde, NOAA — NMF Travis Wilson, Wildlife Resource Commission Cathy Brittingham, Division of Coastal Management Johnathan Howell, Division of Coastal Management James Harrison, DEQ - Marine Fisheries Greg Daisey, NCDEQ — DCM Robert Patterson, NCDEQ-DWR Support Staff/Other Attendees: Chris Rivenbark, NCDOT ECAP Gordon Cashin, NCDOT ECAP Paul Williams, NCDOT Division 1 Barry Hobbs, NCDOT Division 1 John Conforti, NCDOT PMU Paul Atkinson, NCDOT Hydraulics Brian Lipscomb, NCDOT Hydraulics David Hering, NCDOT Geotech Jennifer Evans, NCDOT PMU Marissa Cox, NCDOT Biological Surveys Larry James, NCDOT Utilities John Jamison, NCDOT EPU Douglass Kretchman, NCDOT Roadway Mark Staley, NCDOT Roadside Environmental James Harrison, NCDOT Roadside Environmental Tanga Sampson, NCDOT Eastern Regional Utility Craig Young, Three Oaks Engineering James Mason, Three Oaks Engineering Joanna Salvucci, Three Oaks Engineering Jason Patskoski, Three Oaks Engineering Bryan Loflin, Modjeski & Masters Jason Doughty, Modjeski & Masters Bon -Hsiang Lien, Wood Michael Lear, Wood Chien -Ting Tang, Wood Faith Jahnke, Summit Design & Engineering Brandon Johnson, Summit Design & Engineering Patrick Hartnett, Summit Design & Engineering Jerry Lindsey, Wetherill Engineering Kathy Herring, RK&K Jeff Sheldon, Moffat & Nichol Project Description: HB-0001 is located across Tyrrell and Dare Counties and consists of replacing bridge #7 on US 64 over Alligator River. The project is approximately 4.2 miles long with approximately 0.9 miles of roadway on new location and approximately 3.3 miles of new structures. Minutes: The "413" Meeting for HB-0001 was held on April 20, 2022 from 10:00 AM to 10:45 AM via a Microsoft Teams meeting. Patrick Hartnett provided a brief project description and proceeded through the 413 Hydraulic Redline Plans dated March 2022. General: - It was noted that the current Wetland Boundaries needed further identification between CAMA and 404 wetlands. - The begin and end stations for the bridge deck drains are to be added to the Stormwater Management Plan. - There may be Public Trust AEC labels missing from the current redline drainage plans. - A USCG permit will be required. - The proposed drainage design currently shown on the 4B plans is preliminary and subject to change as the design progresses. - It was noted that the minimum 36" equalizer pipe size was not utilized throughout the project. This will be revised in the final design. Sheet 4: - Impacts include project fill in wetlands and potential excavation in wetlands. - Fill in wetlands will be due to new alignment as well as proposed wildlife fence along proposed ROW. - Potential excavation in wetlands may occur as a result of excavating through the existing alignment in order to provide access to the proposed wildlife crossing at -L- Sta. 24+25 Sheet 5: - Impacts include project fill in wetlands. - 36" RCP equalizer pipe to be installed at -L- Sta. 33+00 +/- within the footprint of proposed fill slopes to provide wetland connectivity. - 24" RCP equalizer pipe to be installed at -Y1- Sta. 11+50 +/- within the footprint of proposed fill slopes to provide wetland connectivity. This will be upsized to a 36" RCP in the final design. - The necessity of an RCP equalizer pipe was questioned. It was assumed the wetland area located south of the proposed -L- alignment, east of the proposed -Y1- alignment and north of the existing alignment will expand to fill in the remaining non -wetland area enclosed by the proposed and existing alignments. Sheet 6: Impacts include project fill in wetlands and permanent stream impacts in a jurisdictional stream. The drainage networks at the begin bridge approach slab will both require riprap outlet pads in the wetland areas at the fill slope toe. It was noted that the shoreline stabilization shown beneath the proposed bridge may not be required as there is existing riprap along the shoreline at this location. It was noted the closed drainage system at the gas station along the existing alignment will most likely require a tail ditch that outlets to the wetland area near the coastline. The redline drainage plans showed a riprap outlet pad in the wetlands at this outlet point but will be revised to move the outlet pad outside of the wetland area to minimize impacts. Sheet 7-18: - Project impacts include permanent stream impacts in a jurisdictional stream. Sheet 19: - Impacts include project fill in wetlands and permanent stream impacts in a jurisdictional stream. - The drainage networks at the end bridge approach slab will both require riprap outlet pads in the wetland areas at the fill slope toe. - It was noted that the redline drainage plans did not show the updated abutment location as the end bridge location had moved. The abutment will be revised to extend to the new end bridge location. - It was noted that the shoreline stabilization shown beneath the proposed bridge may not be required as the end bent setback is large enough to avoid shoreline stabilization issues. Sheet 20: - Impacts include project fill in wetlands and permanent stream impacts in a jurisdictional stream. - Fill in wetlands will be due to new alignment as well as proposed wildlife fence along proposed ROW. - Proposed wildlife crossing at -L- Sta. 228+60 +/- will also serve as an equalizer pipe to provide wetland connectivity. - 24" RCP equalizer pipe to be installed at -Y2- Sta. 14+60 +/- within the footprint of proposed fill slopes to provide wetland connectivity. This will be upsized to a 36" RCP in the final design. - The location of the RCP equalizer pipe was questioned as the current location is closer to the intersection with -L- than desirable. Placement is limited by proposed turn -around on -Y2- that provides school bus access to residents on Old Ferry Landing Road. - Endwalls were recommended for the 48" RCP equalizer pipe located in the channel along -Y2- for additional stabilization. - Proposed tail ditch along existing alignment will replace an existing 24" RCP that was observed to be completely submerged during the field investigation. The proposed tail ditch will connect the existing channels. - ECAP inquired whether the bus turnaround could be retained at its existing location on US 64. The proposed location was selected to provide access to residents on Old Ferry Landing Road while minimizing foot traffic along US 64. Sheet 21: Impacts include project fill in wetlands and permanent stream impacts in a jurisdictional stream. Endwalls were recommended for the 48" RCP equalizer pipe located in the channel along the existing alignment for additional stabilization. Profile Sheets: - It was determined that the horizontal and vertical clearances for the proposed bridge will be labeled. No further comments. Meeting adjourned.