Georgia DOT Updates: MMIP and Transform 285/400 January 23, 2018 - - PowerPoint PPT Presentation

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Georgia DOT Updates: MMIP and Transform 285/400 January 23, 2018 - - PowerPoint PPT Presentation

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Georgia DOT Updates: MMIP and Transform 285/400 January 23, 2018 Tim Matthews, P.E. MMIP Program Manager Jill Goldberg External Affairs Manager 1 We Will Cover Major Mobility Investment Program (MMIP) Georgia Express Lanes System

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Georgia DOT Updates: MMIP and Transform 285/400

January 23, 2018 Tim Matthews, P.E. MMIP Program Manager Jill Goldberg External Affairs Manager

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We Will Cover

  • Major Mobility Investment Program (MMIP)
  • Georgia Express Lanes System
  • I-285 Top End Express Lanes
  • SR 400 Express Lanes
  • Transform 285/400
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Major Mobility Investment Program (MMIP)

Tim Matthews, P.E. MMIP Program Manager

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MMIP: 11 Major Projects Now Underway

  • 11 initial major mobility projects under contract in 10 years (by 2026)
  • $11 billion program
  • Improve passenger and freight movement
  • Use innovative delivery and public-private partnerships (P3) to accelerate

projects

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11 MMIP Projects

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MMIP Projects

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MMIP Schedule

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Procurements

Professional Services Design-Build and P3

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Local Government and Transit Coordination

  • Project plans do not preclude

transit

  • Coordination with MARTA on
  • ptions for Bus Rapid Transit

(BRT) and inline bus stations

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Baseline Access Assumptions

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Baseline Access Assumptions Near Sandy Springs

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I-285 Top End Express Lanes

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I-285 Top End Express Lanes

  • Two new barrier-separated

express lanes in both directions – mostly elevated

  • Project limits may be adjusted
  • Lanes located outside the existing

general purpose lanes

  • Part of the larger Georgia Express

Lanes system

  • Conceptual/Environmental phase
  • Project funding identified
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I-285 Typical Roadway Section

Express Lanes

Illustrative design

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I-285 Top End Next Steps

  • GEC procurement
  • Current operational study to define express lane access points
  • Traffic modeling
  • Opportunities for early right-of-way acquisitions
  • Ongoing stakeholder communications
  • Re-engage the public
  • Environmental Record of Decision – anticipated late 2021
  • Final schedule to be determined
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I-285 Top End Right-of-Way Coordination

  • GARVEE Bonds sold
  • Property acquisition

underway

  • Strategic Acquisition Plan
  • Advanced acquisition
  • pportunities and

strategies

  • ROW GEC – anticipated

early 2018

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I-285 Top End Express Lanes Schedule

Early ROW acquisition Schedule subject to change

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Jun 2019 Dec 2020 Jan 2021 Dec 2021 Oct 2021 Jun 2022 Jun 2023 Jun 2028 + Sep 2019

I-285 Top End PI # 0001758

Influence Change

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SR 400 Express Lanes

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SR 400 Express Lanes

  • Two express lanes in each

direction along SR 400 between I-285 and McGinnis Ferry Rd

  • One express lane in each

direction from McGinnis Ferry Road to McFarland Parkway

  • Project limits may adjust
  • General Engineering

Consultant (GEC) is under contract

2 express lanes begin 2 express lanes end; 1 express lane begins 1 express lane ends

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SR 400 Express Lanes – Typical Roadway Section

  • I-285 N to Spalding Drive
  • Two Express Lanes in each direction (illustrative example)
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SR 400 Express Lanes – Typical Roadway Section

  • Spalding Drive to McGinnis Ferry Road
  • Two Express Lanes in each direction (illustrative example)
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SR 400 Express Lanes – Typical Roadway Section

  • McGinnis Ferry Road to McFarland Parkway
  • One Express Lane in each direction (illustrative example)
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SR 400 Express Lanes Activities

  • Current Activities
  • Survey control complete
  • Operational study to define

express lane access points

  • Traffic analysis
  • Access testing/validation
  • Local/agency stakeholder

coordination

  • Environmental field work
  • Next Steps
  • Environmental phase
  • Future traffic volume

forecasting

  • Future conditions operational

analysis

  • Opportunity for early ROW

acquisition

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SR 400 Express Lanes Schedule

Schedule subject to change

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Sep 2018 Aug 2019 Sep 2019 Jun 2020 Apr 2020 Dec 2020 Dec 2021 Aug 2024 + Jan 2019

SR 400 Express Lanes PI # 0001757

Influence Change Oct 2018

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Transform 285/400

Jill Goldberg, External Affairs Manager

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Project Overview

Two projects combined

  • I-285/SR 400 Interchange
  • SR 400 Collector-Distributor (CD) Lanes

Project Limits

  • SR 400: North of Spalding Drive to the

Glenridge Connector

  • I-285: Long Island Drive to east of Ashford

Dunwoody Road Faster project completion through innovative project delivery methods

  • Design-Build-Finance (DBF)
  • Public-Private Partnership (P3)

Total estimated project cost - $800M

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I-285/SR 400 Interchange

Existing Cost Proposal

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I-285/SR 400 Interchange – Alternate A

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Project Schedule

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Future Construction Stages

Q4 2017 – Q1 2020 Q1 2018 – Q2 2019 Q3 2018 – Q2 2020 Q1 2018 – Q1 2020 Q2 2018 – Q4 2019 Q1 2018 – Q1 2019 Q1 2018 – Q2 2020 Q1 2018 – Q1 2020

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Upcoming & Ongoing Work

  • Permanent SR 400 Flex Lane closure
  • Detour at Mount Vernon and Barfield

Road for AT&T relocation

  • Construction of the collector-distributor

lanes on SR 400 and I-285

  • Abernathy Road Diverging Diamond

Interchange (DDI)

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Mount Vernon Highway Bridge Reconstruction

  • New 4-lane bridge will be built
  • Periodic daytime and night time

closures of lanes and shoulders on Mt. Vernon and SR 400

  • Pedestrian access will be maintained
  • Construction crews will work behind

concrete barriers

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Abernathy Road Diverging Diamond Interchange (DDI)

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Abernathy Road Cross Section

N

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Glenridge Drive and Peachtree Dunwoody Road Bridges

  • City provided $2.25M earmark for Glenridge improvements
  • Georgia DOT approved change in December 2017
  • Construction in late-2019
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Glenridge Drive Bridge

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Peachtree Dunwoody Road Bridge

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Sound Barriers

  • Light gull grey color, ashlar

stone finish

  • 2018 construction
  • Glenridge Drive to Roswell

Road

  • Spalding Drive
  • Existing barriers will remain

until construction begins in respective areas

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Shared-Use Path

  • 12’ paved surface with 2’

unobstructed shoulders (grass) on either side

  • Final design stages
  • Construction to begin in Q2

2020

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Questions?