Study Area Approximately 3.05 Miles Speed Limit 30 to 40 mph - PDF document

7/16/2019 SR 8 / US 127 (Signal Mountain Boulevard) Public Informational Meeting Joe Deering Erin Woodson Jennifer Flynn TDOT Region 2 Arcadis TDOT Region 2 Assistant Chief Engineer Project Manager Community Relations Officer July 2019 1 Study Area • Approximately 3.05 Miles • Speed Limit – 30 to 40 mph • Mountainous Topography • Urban Minor Arterial • 11’ Lane Widths • 2’ Shoulders • 3-lane & 2-lane sections 2 2 1

7/16/2019 Purpose & Need • Improve Safety • Improve Reliability • Reduce Potential Roadway Failures 3 3 Project History TDOT Updated 2009 2011 2018 2019 Technical Slope Repair/ Report Retaining Wall SR 8 Rock Project SR 8 Rock Slide SR 8 Repaving Slide IMPROVE Act SR 8 Slope Project Stabilization (Design) Projects (2) 4 4 2

7/16/2019 Project History – Rock Slides 5 5 Upcoming Projects Site 3 – Slope Stabilization Slope Repair/ Retaining Wall IMPROVE Act Project 6 6 3

7/16/2019 TDOT Commitments • No Closures during the World’s Longest Yard Sale • Coordination with Responders and Local Route Users During Planned Closures • Minimize Duration of Construction 7 7 Slope Repair / Retaining Wall 8 8 4

7/16/2019 IMPROVE Act Design Timeline • Preliminary Engineering Funding Approved – August 2017 • Survey Complete – August 2018 • Planning Document – Summer 2019 • Public Informational Meeting • Preliminary Plans – Summer 2020 • Design Public Meeting • Right-of-Way Acquisition – Fall 2020 (Pending Funding) • Construction – TBD 9 9 IMPROVE Act Project Safety and Reliability Improvements • o Three (3) Retaining Walls for Slope Stability o Proposed Drainage Improvements o Guardrail with Driveway at L.M. 15.6 o Proposed Right-of-Way at L.M. 15.3 for Sight Distance Improvements o Rockfall Mitigation 10 10 5

7/16/2019 IMPROVE Act Project WALL 1 Three (3) Retaining Walls • o Wall 1 (L.M. 16.1) o Wall 2 (L.M. 14.4) o Wall 4 (L.M. 15.2) Slope Repair/Retaining Wall WALL 4 WALL 2 11 11 IMPROVE Act Project Drainage Improvements • o Culvert Upgrades o Ditch Improvements 12 12 6

7/16/2019 IMPROVE Act Project Safety and Reliability • Improvements o Proposed ROW to Keep Trees Trimmed and Improve Sight Distance o Guardrail & Driveway o L.M. 15.6 13 13 Rockfall Mitigation Potential Areas Have Been Identified Work May Include: Scaling and Trimming • Rock Bolting • Shotcrete • Slope Drapes • Barrier Systems • 14 14 7

7/16/2019 Questions Email: TDOT.Comments@tn.gov Re: US-127/SR-8 Hamilton County Project 15 8