ohio river tunnel: an innovative 10.11.2016 alternative to...
TRANSCRIPT
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Ohio River Tunnel: An innovative alternative to 3
CSO Basins
Project Update Meeting
10.11.2016
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Discussion topics for this evening
• Overview • Ohio River Tunnel Project
Conceptual layout • Next Steps
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Ohio River Tunnel Overview A project to combine the volume of 3 individual Combined Sewer Overflow (CSO) basins into a single deep rock tunnel September 30, 2016 approval by MSD’s Board to move forward with design
Three basins will be eliminated by the consolidated tunnel solution
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Careful consideration resulted in the new solution Variety of factors considered:
– Discussions with Community leaders – Input from public meetings – Traffic disruptions along key commercial corridor – Economic impacts to downtown businesses and the emerging
Butchertown district – Consent Decree mandates for completion by December 2020 – Technological advances of deep tunnel construction over the last
decade have reduced costs – Eliminates challenges of construction and final land use planning
on a brownfield site
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Community meetings to date
Story & Main Lexington & Payne
Orientation June 16, 2015 January 19, 2016
Conceptual February 10, 2016 April 26, 2016
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Ohio River Tunnel Conceptual Layout
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Ohio River Tunnel Facts
• Temporary storage of sewer diluted with rain water during wet weather events
• Approximately 13,200 linear feet in length • Approximately 175-feet to 200-feet below ground • Minimum internal diameter of 20 feet • Minimum storage volume of 31.8 million gallons
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Ohio River Tunnel Preliminary Alignment
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Individual projects make up the Ohio River Tunnel Project
• Project Components: – Ohio River Tunnel – Lexington & Payne CSO Interceptor – Story and Main Connector – Downtown CSO Interceptor – Rowan Pump Station & Force Main
• The Consent Decree Deadline of December 31, 2020 remains unchanged
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Lexington and Payne CSO Interceptor Facts
• Sewer line to capture overflows from the 9 existing CSOs and convey that flow to the tunnel
• Interceptor will be below the concrete channel of South Fork Beargrass Creek
• Approximately 5,000 liner feet in length – From E Broadway to E Main Street – Pipe size ranging from 36-inch to 102-inch
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Lexington and Payne CSO Interceptor Drop Shaft
Drop Shaft
Interceptor Tunnel
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Story and Main Connector Facts
• Sewer line to capture overflows from the 2 existing CSOs and convey that flow to the tunnel
• Approximately 200 liner feet in length – On Franklin Street and Buchanan Street – Pipe size 36-inch
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Story and Main Connector
Tunnel
Drop Shaft
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Downtown CSO Interceptor Facts
• Sewer line to captures overflows from 12 CSOs and convey that flow to the tunnel
• Approximately 2,000 linear feet in length – Mainly north-south streets between Main Street and
River Road – Pipe size ranging from 12-inch to 48-inch
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Downtown CSO Interceptor
Drop Shaft
Interceptor
Drop Shaft
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Rowan Pump Station & Force Main Facts
• A pump station to return combined sewer flows to the existing system for treatment
• Control buildings will be constructed on northwest corner of 13th Street and Rowan Street intersection
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Rowan Pump Station
Pump Station Drop
Shaft
Force Main
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Next Steps
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Next Steps
• Project modification request currently under EPA review • Begin conceptual designs • Continue coordination with project partners • Conduct public update meetings as project progresses • Consent Decree Deadline to remain December 31, 2020
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Schedule
Project Construction Start
Construction Completion
Ohio River Tunnel Summer 2017 Spring 2020 Lexington & Payne CSO Interceptor Summer 2017 Fall 2019
Story & Main Connector Spring 2018 Winter 2019
Downtown CSO Interceptor Spring 2018 Winter 2019
Rowan Pump Station & Forcemain
Spring 2018 Summer 2020
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Questions you may have
• Will MSD purchase the River Metals Recycling (1371 Lexington Rd)
property or be performing any construction activities on the River
Metals Recycling property associated with this project?
• What will be the impact to neighbors of the project during
construction?
• Will there be any visible above ground structures?
• Will there be odors associated with the tunnel?
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Discussion
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For general information or emergencies regarding the MSD system, call:
502-587-0603
Your call will be answered
• By an MSD staff member
• Around the clock
• Every day of the year