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Dwirs community impact pres 4 4-13-v3
The Dugway West Interceptor Relief Sewer project will construct an 11,000 foot sewer tunnel and 2,700 feet of open cut sewers to control combined sewer overflows from a 5-year storm event. It is part of a regional $3 billion program to reduce overflows and improve water quality in Lake Erie through seven tunnels totaling over 21 miles. Once completed, this project is expected to capture 110 million gallons of overflow annually.
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Dwirs community impact pres 4 4-13-v3
- 1. Dugway West Interceptor ReliefSewer (DWIRS) April 4, 2013
- 2. Agenda • Project Locationand Alignment • Easements, Constraints, and Construction Sequencing • Community Benefits and Restoration • Project Clean Lake and CSO Benefits once completed 2
- 3. About us • Createdby Court Order in 1972 • Servicing all or part of 62 member communities • 1 million customers • 90+ billion gallons wastewater treated each year 3
- 4. What We Do •Three wastewater treatment plants • Interceptor sewer operation, maintenance • Combined Sewer Overflow control • Regional Stormwater Management 4
- 5. Street Catch WWTP Basins Domestic Industrial Wastewater Wastewater Storm Water Outlet (SWO) Regulator Lake Erie Combined Sewer Combined Dry weather Sewer Overflow outlet (DWO) Flow to WWTP Combined Sewer System
- 6. How they work: Regulatingstructures allow excess stormwater to overflow Overflow pipe Side-spill weir 6
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- 8. Netting facility, floatabledebris from combined sewer overflow 2010 8
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- 11. Project background • ControlCSO overflows • Consolidate existing regulators • Provide relief for up to a 5-year, 6-hour storm event • Convey flow to current interceptor, future tunnel • Prepare for future 17’ Doan Valley Tunnel 11
- 12. By the numbers •11,000 feet 3’ to 6’ sewers in tunnel • 2,700 feet 15” to 7’ sewers in open-cut • Plus structures, regulators, and modifications
- 13. DWIRS Location DWIRS location related to Dugway West Brook and Dugway West Culvert Existing local sewer system Existing CSO Regulators Proximity to Dugway East Brook and Dugway Storage Tunnel Proximity to Easterly Interceptor on the North End Proximity to Doan Valley Tunnel on the South End 13
- 14. Open Streams, Brooks ORIGINAL Nine Mile Nine Mile Creek/Culvert Creek/Culvert Dugway West Dugway West Brook /Culvert Brook /Culvert Dugway East Dugway East Brook/Culvert Brook/Culvert Doan Brook/ Doan Brook/ Culvert Culvert
- 15. Open Streams, BuriedCulverts CURRENT Nine Mile Nine Mile Creek/Culvert Creek/Culvert Dugway West Dugway West Brook /Culvert Brook /Culvert Dugway East Dugway East Brook/Culvert Brook/Culvert Doan Brook/ Doan Brook/ Culvert Culvert
- 16. Bidding, Construction Schedule 1.DWIRS Project Bidding May 2013 2. Construction Start Sept. 2013 3. Substantial Completion May 2016 (32 months) 4. Final Completion Sept. 2016 (36 Months) 16
- 17. Easements, property acquisition • Ongoingdiscussions • Negotiations: TranSystems • Land Bank acquisitions, demolition: NEORSD • 8 properties to be demolished • Demolition work will occur in the first 5 months 17
- 18. Project Constraints • Focus:Northern half, then southern – Utility relocation by other agencies may occur anywhere along alignment • Limit active shafts, work sites • Restore work zones shortly after completion 18
- 19. Project Constraints • Coordinatewith schools to maintain access to all driveways • Limit haul routes • Complete work within St. Clair within 12 months 19
- 20. Project Constraints • CompleteDurant sewer in final 12 months • Demolish eight structures within first five months • Work hours: 7 a.m. – 7 p.m. Monday – Saturday per the City 20
- 21. Estimated Work Durations MainlineA-Open Cut Mainline B-Tunnel St. Clair Ave East Mainline C-Tunnel 21
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- 37. Provisions and monitoring • Inspections:Contractors will video and photograph structures’ exterior • Markers: Contractor will install Geotechnical instrumentation and survey markers on structures • Vibration monitoring 37
- 38. Provisions and monitoring • Surfacesettlement monitoring over tunnel • Post-construction inspection • Restoration as needed 38
- 39. Community benefits, restoration • Aspectsof restoration are open to community input • Final Roadway restoration will include new pavement 39
- 40. Community benefits, restoration • Additionaldemolition will be considered • Additional community benefits will be considered as opportunities are presented 40
- 41. What is ProjectClean Lake? • Consent decree with EPA • $3 billion 25-year program to address water quality issues caused by sewage overflows (CSOs) 41
- 42. What is ProjectClean Lake? • 772 communities have similar mandates
- 43. What is ProjectClean Lake? • Reduce combined sewer overflow volume 10 9 8 7 Billions of gallons 6 5 4 3 2 1 0 1972 TODAY 2035 43
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- 45. 7 tunnels tocontrol CSO • 21 total miles • 17’ to 24’ diameters • 100’ to 200’ underground • Three Deep Tunnel Pump Stations • Drop Structures, Near Surface Sewers and Structures 45
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- 47. Other CSO Project Coordination SST SST DST Overlap (DST) E140 E140 DST-4 Forest Hills Park DST-5 St. Clair/E 109th DST-7 Lakeview and Ada DST-8 Lakeview and Superior East 140 th Relief Sewer (E140) Doan Valley Tunnel (DVT) DST DST Lakeview and Ada Superior Ave Shoreline Storage Tunnel (SST) DWIRS DWIRS Forest Hills Park Mining Site 47 DVT DVT
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- 49. CSO Reduction Benefits Year of Annual Project Title Completio CSO capture n Dugway East Relief Sewer (DEIRS) 2012 85 Million Gallons Euclid Creek Storage Tunnel (ECT) 2015 344 Million Gallons Dugway West Relief Sewer (DWIRS) 2016 110 Million Gallons Dugway Storage Tunnel/E 140th 2020 411 Million Gallons (DST/E140) Doan Valley Tunnel (DVT) 2021 348 Million Gallons Shoreline Storage Tunnel (SST) 2027 502 Million Gallons Total CSO 1,800 Million Capture Gallons
- 50. What’s the benefit? •Improve water quality – Clean beaches, recreation – Protecting clean-water resource – Improve our regional image – Neighborhood revitalization • Regional economic impact – Job creation – Tax Revenue
- 51. LEARN MORE. dugwaytunnel.blogspot.com neorsd.org/cleanlake ASK US. cleanlake@neorsd.org TWEETUS. @neorsd 3900 Euclid Avenue | Cleveland, OH 44115 | (216) 881-6600 | neorsd.org
Editor's Notes
- #9 Northeast Ohio Regional Sewer District neorsd.org/cleanlake | cleanlake@neorsd.org neorsd.org/cleanlake | cleanlake@neorsd.org Northeast Ohio Regional Sewer District
- #10 Northeast Ohio Regional Sewer District neorsd.org/cleanlake | cleanlake@neorsd.org neorsd.org/cleanlake | cleanlake@neorsd.org Northeast Ohio Regional Sewer District
- #13 11,000 feet of 36”-72” sewers in tunnel Approximately 2,700 feet of 15”-84” sewers in open-cut 2 diversion structures to future DST and Dugway West/East Culverts (DWD-1 & DWD-2) 2 regulator structures to Dugway West Culvert (DWR-1 & DWR-2) Flow Divider (DWF-1) Modifications to 39 existing regulators
- #18 Ongoing Temporary and Permanent Easement Negotiations TranSystems is Consultant handling the Negotiations NEORSD is processing Land Bank Acquisitions and Demo 8 Properties will be demolished for the project and demo work will occur in the first 5 months.
- #19 Contractor to focus efforts on Northern Half before Southern (Utility relocation work by other agencies may occur anywhere along alignment) Limit the number of active shafts and work sites Work zone restoration following shortly after completion Coordinate with schools to maintain access to all driveways. Limit Construction Haul Routes Work within St. Clair shall be completed within 12 months Durant sewer shall be done in the final 12 months Demo 8 Structures within first 5 months Work Hours are 700am to 700pm Mon– Sat per the City
- #20 Contractor to focus efforts on Northern Half before Southern (Utility relocation work by other agencies may occur anywhere along alignment) Limit the number of active shafts and work sites Work zone restoration following shortly after completion Coordinate with schools to maintain access to all driveways. Limit Construction Haul Routes Work within St. Clair shall be completed within 12 months Durant sewer shall be done in the final 12 months Demo 8 Structures within first 5 months Work Hours are 700am to 700pm Mon– Sat per the City
- #21 Contractor to focus efforts on Northern Half before Southern (Utility relocation work by other agencies may occur anywhere along alignment) Limit the number of active shafts and work sites Work zone restoration following shortly after completion Coordinate with schools to maintain access to all driveways. Limit Construction Haul Routes Work within St. Clair shall be completed within 12 months Durant sewer shall be done in the final 12 months Demo 8 Structures within first 5 months Work Hours are 700am to 700pm Mon– Sat per the City
- #38 Contractors will perform external video and photographic inspection of Structures. Contractor will install Geotechnical instrumentation and survey markers on structures. Vibration Monitoring. Surface Settlement Monitoring over tunnel. Post Construction Inspection. Restoration as needed.
- #39 Contractors will perform external video and photographic inspection of Structures. Contractor will install Geotechnical instrumentation and survey markers on structures. Vibration Monitoring. Surface Settlement Monitoring over tunnel. Post Construction Inspection. Restoration as needed.
- #40 Aspects of the Restoration are open to Community input. Final Roadway restoration will include new pavement. Additional Demo will be considered. NEORSD is considering additional community benefits as opportunities are presented.
- #41 Aspects of the Restoration are open to Community input. Final Roadway restoration will include new pavement. Additional Demo will be considered. NEORSD is considering additional community benefits as opportunities are presented.
- #42 Northeast Ohio Regional Sewer District neorsd.org/cleanlake | cleanlake@neorsd.org neorsd.org/cleanlake | cleanlake@neorsd.org Northeast Ohio Regional Sewer District
- #44 Northeast Ohio Regional Sewer District neorsd.org/cleanlake | cleanlake@neorsd.org neorsd.org/cleanlake | cleanlake@neorsd.org Northeast Ohio Regional Sewer District
- #46 21 Miles in Length 17’ to 24’ in Diameter 100’ to 200’ in Depth Five Rock Tunnels in Chagrin Shale Two Soft ground Tunnels in Buried Cuyahoga River Valley Three Deep Tunnel Pump Stations Drop Structures Near Surface Sewers and Structures
- #51 Northeast Ohio Regional Sewer District neorsd.org/cleanlake | cleanlake@neorsd.org neorsd.org/cleanlake | cleanlake@neorsd.org Northeast Ohio Regional Sewer District
- #52 Northeast Ohio Regional Sewer District neorsd.org/cleanlake | cleanlake@neorsd.org neorsd.org/cleanlake | cleanlake@neorsd.org Northeast Ohio Regional Sewer District