Georgia DOT Updates: MMIP and Transform...
Transcript of Georgia DOT Updates: MMIP and Transform...
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Georgia DOT Updates: MMIP and Transform 285/400
January 23, 2018
Tim Matthews, P.E.MMIP Program Manager
Jill GoldbergExternal 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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ProcurementsProfessional Services
Design-Build and P3
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Local Government and Transit Coordination• Project plans do not preclude
transit• Coordination with MARTA on
options 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
opportunities 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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2019Dec 2020
Jan 2021
Dec 2021
Oct 2021
Jun 2022
Jun 2023
Jun 2028
+
Sep2019
I-285 Top EndPI # 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 lanesbegin
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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26Sep 2018
Aug 2019
Sep 2019
Jun 2020
Apr 2020
Dec 2020
Dec 2021
Aug 2024
+
Jan2019
SR 400 Express LanesPI # 0001757
Influence Change
Oct 2018
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Transform 285/400Jill Goldberg, External Affairs Manager
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Project OverviewTwo 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 RoadFaster 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?