ohio river tunnel update - msdprojectwin.org ohio river tunnel... · february 10, 2016: april 26,...
TRANSCRIPT
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Ohio River Tunnel Update
July 19, 2017
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Agenda
• Introductions• Getting to Know You• Consent Decree Overview• Project Overview• Ohio River Tunnel Projects• Project Schedule• Cost Estimate• Keeping Each Other Informed• Feedback
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Getting to Know You
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Public Engagement Tools: “Clickers” and Online Polling
“Clickers” for Public Meetings• Simple To Use• Anonymous (No One Knows Your Answers)• Simultaneous (We All See the Results At the Same Time)• Equal Voice for All
msdprojectwin.org
Online Polling for Those Who Can’t Attend Public Meetingshttp://tinyurl.com/OhioRiverTunnel
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How Young Are You?
1. 0-192. 20-293. 30-394. 40-495. 50-596. 60-697. 70-798. 80+
0-1920-2
930-3
940-4
950-5
960-6
970-7
980+
1 1 1 11111
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Gender?
1. Male2. Female
Male
Female
11
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Consent Decree Overview
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History of Louisville’s Sewers and Overflows
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Old swamp map
1796 Map of Louisville
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Development Occurs
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What is a Combined Sewer?
What is a combined sewer?– Both storm water and wastewater conveyed in the same pipe
system
Wastewater Lines Connected
Original Combined Sewers discharged directly to rivers and streams
Overflow Weir Added
Low Flow Line
Wastewater treatment added in 1958. Dry weather flow treated. Some wet weather flow discharged to prevent flooding.
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AUGUST 1932
SOUTHWESTERN
OUTFALL
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Sewer Overflow Locations
• Community-wide sewer overflows
• New pipeline, storage, pumping and treatment
• $850 million cost to community
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How Do We Control Overflows?
Source Control Projects – Green infrastructure– Downspout disconnections– Sump pump disconnections– Sewer rehabilitation
Gray Infrastructure Projects– Pipeline projects– Pump station expansions– Wastewater treatment plant expansions– Storage Basins
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Consent Decree Program StatusO
VERF
LOW
OCC
URE
NCE
S
2007 2009 2011 2013 2015 2017 2019 2021 2023
Separate Sewer System Projects
Treatment Center
Elimination Projects
Combined Sewer System Projects
Separate Sewer System Projects
$400M
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Basins Projects per Consent Decree
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What is a CSO Basin?
• A CSO Basin provides temporary storage for wet weather overflows that would otherwise flow directly to creeks, streams and rivers
• Released back into the collection system for treatment when system capacity is available
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Frequently Asked Questions
• Will it create potential for back-ups?– No, the high-water elevation will be below basement elevations– Also will not eliminate the potential of back-ups
• What happens when the basin is full?– The system will function as it does today with the overflows being
discharged to South Fork Beargrass Creek• Will this project reduce flooding?
– The basin will increase capacity of the combined sewer system during wet weather events
• Will the basin be visible?– No; underground, covered facility– There will be a control building and a screened generator– Access points/hatches may be visible
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Frequently Asked Questions
• What about odor?– Highly diluted flow (mostly storm water)
– Basin is underground and covered
– Basin will be equipped with flushing equipment
– Typically, odor control is not necessary with these types of facilities
– MSD is being pro-active
• Performing odor control monitoring/testing
• Basin will be designed to accommodate a future odor control system
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Project Overview
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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 tunnelSeptember 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 corridors– 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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Meetings to Date: Community
Project Phase Butchertown Irish Hills
Orientation June 16, 2015 January 19, 2016
Conceptual Design February 10, 2016 April 26, 2016
Update October 11, 2016 October 18, 2016
Update July 11, 2017
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Meetings to Date: Louisville Downtown Partnership
Group Date
Lou. Downtown Partnership February 10, 2017
Lou. Downtown Partnership February 24, 2017
Lou. Downtown Partnership March 1, 2017
KY. Science Center & Ali Center April 26, 2017
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Ohio River Tunnel:An Innovative Alternative to 3 CSO Basins
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Project Background
• Divided into four (4) separate projects– Ohio River Tunnel– Rowan Pump Station– Lexington & Payne CSO Interceptor– Downtown CSO Interceptor
• Consent Decree Deadline of December 31, 2020
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Ohio River Tunnel – Project Alignment
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Ohio River Tunnel – Project Profile
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• Parameters• 13,400 linear feet in length (main tunnel)• 1,200 linear feet in length (bifurcation)• 200 feet below ground to invert• 20 feet minimum internal diameter
• Volume• Required - 33.7 million gallons• Provided - 37.0 million gallons• Rock Removal – 300,000 CY or 30,000 trucks
Ohio River Tunnel – Project Facts
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Ohio River Tunnel - Dig INDY Site Visit
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Ohio River Tunnel - Dig INDY Site Visit
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Ohio River Tunnel - Dig INDY Site Visit
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Ohio River Tunnel - Dig INDY Site Visit
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Ohio River Tunnel - Dig INDY Site Visit
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Ohio River Tunnel – Shaft Locations
Pump Station Shaft
Working Shaft
Drop Shaft 1
Drop Shaft 2
Drop Shaft 3
Drop Shaft 4 / Retrieval Shaft
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Rowan Pump Station
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Rowan Pump Station – Project Alignment
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Rowan Pump Station – Project Alignment
Pump Station Shaft Working Shaft
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Rowan Pump Station – Project Facts
• Pump Station Building• 120 foot x 72 foot• Pump Station Shaft• Loading/Maintenance Area• Elevated Electrical/Control Room
• Wet Well• 10 submersible pumps (3,500 gpm each)• 2 grit pumps (1,000 gpm each)• 60 inch gravity sewer to Ohio River Interceptor (ORI)
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Rowan Pump Station – Building Layout
Electrical/Control Room Maintenance Area
Pump Shaft
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Rowan Pump Station – Draft Rendering
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Rowan Pump Station – Draft Rendering
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Lexington & Payne CSO Interceptor
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Lexington and Payne CSO Interceptor –Project Alignment
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Lexington and Payne CSO Interceptor –Project Alignment
Drop Shaft 4 / Retrieval Shaft
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• Sewer line to capture overflows from nine (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 linear feet in length– From E Broadway to E Main Street– Pipe size ranging from 36-inch to 102-inch diameter
Lexington and Payne CSO Interceptor -Project Facts
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Example Project - Logan CSO Interceptor
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Example Project - Logan CSO Interceptor
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Example Project - Logan CSO Interceptor
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Example Project - Logan CSO Interceptor
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Downtown CSO Interceptor
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Downtown CSO Interceptor – Project Alignment
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Downtown CSO Interceptor - Project Facts
• Sewer lines to capture overflows from twelve (12) existing CSOs and convey that flow to the tunnel
• Approximately 2,000 linear feet total in multiple segments
• 12-inch to 60-inch diameters• Street Impacts
• Rowan Street between 10th & 13th Streets• Washington Street between 6th & 8th Streets• 6th Street between Main & Washington Streets• Main Street between 5th & 6th Streets
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Downtown CSO Interceptor – Rowan Street
Drop Shaft 1
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Downtown CSO Interceptor – Washington St
Drop Shaft 2
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Downtown CSO Interceptor – 6th Street
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Downtown CSO Interceptor – Main Street
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Story and Main Connector – Project Alignment
Drop Shaft 3
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Story and Main Connector - Project Facts
• Sewer line to capture overflows from two (2) existing CSOs and convey that flow to the tunnel
• Approximately 200 linear feet in length– Near the intersection of Franklin Street and Buchanan
Street– Pipe size: 48-inch diameter
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Project Schedule
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Ohio River Tunnel – Schedule
Milestone Ohio RiverTunnel
Lexington & Payne CSO Interceptor
DowntownCSO
Interceptor
Rowan Pump Station
Final Design May 2017 Feb. 2017 Sept. 2017 Nov. 2017Construction
Start Oct. 2017 Oct. 2017 Nov. 2017 Feb. 2018
SubstantialCompletion June 2020 June 2019 Oct. 2019 Aug. 2020
Consent Decree
DeadlineDec. 31, 2020 Dec. 31, 2020 Dec. 31, 2020 Dec. 31, 2020
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Cost Estimate
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Ohio River Tunnel – Construction CostsProject Construction Cost Estimate
Ohio River Tunnel $ 135,000,000Lexington & Payne CSO Interceptor $ 25,000,000Downtown CSO Interceptor $ 15,000,000Rowan Pump Station $ 25,000,000
Total $ 200,000,000
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Keeping Each Other Informed
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MSD Wants to Keep You Informed, and We Want to be Informed
The tunnel will greatly reduce surface disturbance and construction impacts, and the tunnel boring will not be heard,
but…
• Some streets will be closed for interceptor installations at different times over the next three years
• There will still be significant construction traffic and impacts
MSD will create information resources to keep you up to date, help you plan for any possible construction impacts, and help you keep us informed about impacts we should be aware of.
We’d like your opinion on the best ways to accomplish this.
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How Would You Like to Learn About MSD’s Ohio River Tunnel Progress? (5)
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
1 1 1 1 111111
1. Public Meetings2. Local Mainstream Print or Broadcast
Media3. Metro Council District Newsletters4. MSD Website5. Dedicated MSD Project Website6. MSD Email List7. @LouisvilleMSD (Twitter)8. Facebook Updates9. Text Messages to Your Phone10. Louisville Downtown Partnership
Website
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What Types or Styles of Information Exchange Would be Most Useful During the Project? (5)
1. Real Time Animation Of Tunnel Or Construction Progress
2. Moderated Discussion / Message Board
3. 800 Number for Questions4. FAQ Derived from items 2 and 35. MSD and Project Event
Announcements / Calendar6. Weekly Update / Map of
Construction Impacts 7. URL’s to Related Project Resources
1. 2. 3. 4. 5. 6. 7. 8.
1 1 1 11111
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THANK YOU!
Next Steps• Ohio River Tunnel and Lexington and Payne CSO
Interceptor– Board Award in 3rd Quarter 2017– Construction in 4th Quarter 2017
• Downtown CSO Interceptor– Board Award in 4th Quarter 2017– Construction in 1st Quarter 2018
• Rowan Pump Station– Board Award in 1st Quarter 2018– Construction in 2nd Quarter 2018
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Discussion
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502-587-0603
For general information or emergencies regarding the MSD system, call:
Your Call Will be Answered• By an MSD Staff Member• Around the Clock• Every Day of the Year