Middlebelt Transport and Storage Tunnel (MTST) Project July 25, 2016 Middlebelt Transport and Storage Tunnel (MTST) Project Progress Summary Presented By: Jim Nash, Water Resources Commissioner Joel Brown, PE, Project Engineer Evergreen-Farmington Sewage Disposal System Office of the Oakland County Water Resources Commissioner
Introduction Project Purpose and Overview Completed Work Current Work Middlebelt Road Traffic Impacts Residential Well Impact Status Remaining Work Remaining Construction Schedule
Project Purpose and Overview
Project Overview Participants Owner: Participating Communities: Engineer: Contractor:
Project Overview Project Purpose-Reduce SSOs
Project Overview Project Purpose Sewer System Upgrades Required to Comply with Michigan Department of Environmental Quality SSO Regulations (Reduce SSOs) Data Collection, Modeling, LTCAP Developed 2004 WRC and communities enter ACO with the MDEQ 2013-2016 Middlebelt Transport and Storage Tunnel
Project Overview Evergreen – Farmington Sewage Disposal System Hills Farmington
Project Overview MTST Location 9-foot Dia. MTST Diversion Chambers Farmington Hills Farmington
Project Overview Diversion Chamber Function-Dry Weather Flow Existing Farmington Interceptor Middlebelt Tunnel
Project Overview Diversion Chamber Function-Wet Weather Flow Existing Farmington Interceptor Middlebelt Tunnel
Project Overview Original MTST Route-Plan View Recovery Shaft Manhole TS-5 & DC-2 Flow Manhole TS-4 Manhole TS-3 Manhole TS-2 & DC-1 Existing Farmington Interceptor Existing 18-inch Sanitary Sewer TS-1 Launch Shaft
Project Overview Original MTST Route-Profile View Manhole TS-5 & DC-2 Manhole TS-4 Manhole TS-3 90 feet deep Manhole TS-2 & DC-1 TS-1 Farmington Interceptor 15-20 feet deep 9 feet Middlebelt Transport and Storage Tunnel 7,566 feet long under Middlebelt Road from I-696 north to 13 Mile Road
Project Overview Revised MTST Route-Plan View Recovery Shaft TS-5A & DC-2 Flow Manhole TS-4 at Utley Street Manhole TS-2 & DC-1 Dewatering Location Existing Farmington Interceptor Existing 18-inch Sanitary Sewer Launch Shaft TS-1
Project Overview Revised MTST Route-Profile View Recovery Shaft TS-5A & DC-2 Manhole TS-4 80 feet deep Manhole TS-2 & DC-1 TS-1 Farmington Interceptor 15-20 feet deep 9 feet Middlebelt Transport and Storage Tunnel 5,930 feet long under Middlebelt Road from I-696 north to Chenwood Ct.
Middlebelt Tunnel Revised Alignment *Performing Additional Projects to Maintain Hydraulic Equivalent
Completed Work
TS-1 Lauching Shaft TS-1 Shaft Complete July 2015
Tunnel Boring Machine (TBM) Assembly
TBM Launch
Muck Operations Mining to TS-5A Complete on June 10, 2016
Primary Liner Installation
Current Work
TS-5A Recovery Shaft Installation
DC-2 Shaft
Middlebelt Traffic Impacts
No through access on Middlebelt Middlebelt Closures X TS-5A and DC-2 construction February 2016 through November 2016 Local access only closure Road closure signs notify of police enforcement Chenwood Ct. No through access on Middlebelt X Road closure Wellington St. X X Middlebelt Rd.
Middlebelt Road Traffic Controls In the process of devising additional traffic control devices to further limit cut-through traffic around hard closure.
Residential Well Impact Status
Residential Well Impact Status Dewatering with four pumping wells southwest of 12 Mile and Middlebelt Level dropped close to 55 feet below ground surface Currently 0 no-water situations Stress we have all contractors on board for rapid response to address any water issue. Working with our insurance agent to cover unforeseen impact costs.
Remaining Work
Hobas Pipe Installation
Manhole Structures TS-2 and TS-4
Remaining Construction Schedule
Remaining Construction Schedule
Questions