St. Louis MSD Project Clear Nears Completion of First Tunnel, Announces Future Schedule
MSD Project Clear reached a milestone in 2014 with the completion of the first phase of the 3,200-ft long x 8-ft diameter tunnel as part of the Lemay Redundant Force Main project. The TBM Miss Chelsea completed the digging of the tunnel between February and May 2014. The agency is expecting to finish the $20 million project later this year, when surface connections are completed. In constructing this second force main, the Lemay Wastewater Treatment Plant will be able to accept a higher volume of wastewater, and allow MSD to inspect the original force main for the first time since its construction in the 1960s.
“Construction on the eight remaining tunnels is planned to begin over the next dozen years,” said MSD Executive Director Brian Hoelscher. “These tunnels represent significant work opportunities for the construction industry with the second tunnel expected to go to bid as early as 2016, followed by four more tunnels beginning construction in 2017.These next five tunnels have an estimated construction cost of over $1 billion.”
“We want the construction industry to be aware of these upcoming opportunities and plan accordingly,” Hoelscher stated.
All prospective bidders must be prequalified and certified prior to advertisement of these projects. Prequalification is based on past project experience, performance, and financial strength. If you have questions regarding the prequalification process for these projects, please contact Marie Collins, P.E., Assistant Director of Engineering, at 314-768-6316 or Allen Muehlher, P.E., Program Manager, at 314-768-6239.
MSD and Jacobs Engineering, the designer for three of these tunnels, will present St. Louis’ Sewer Tunnel Vision paper at the 2015 Rapid Excavation and Tunneling Conference. This paper will describe the Maline Creek CSO Storage Facility, Jefferson Barracks Tunnel, and Lower & Middle River Des Peres Storage Tunnel in detail.
The table outlines the key components of each of the remaining eight tunnels. The schedule and cost presented is tentative as determined by current planning efforts, and subject to program implementation and final budget approval.
For more details MSD Project Clear tunnel projects, please visit us at www.projectclearstl.org
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