WebApr 20, 2024 · As the prime consultant, McMillen Jacobs has led a team of over 20 subconsultant firms to deliver a final design that includes development of five access shaft sites with new conveyance and control structures to divert CSOs into the new storage tunnel. The shafts range from 11 to 87 feet (3.4–26.5 m) in diameter and 60- to 120-feet … WebPerformance Criteria as the original two CSO storage tunnels. The construction of a single storage tunnel will reduce the construction impacts to the local communities of University City and Richmond Heights. A single storage tunnel will reduce the number of tunnel shafts and eliminate the dewatering pump station in University City.
East Side and West Side CSO Tunnels WSP - WSPglobal
WebAug 1, 2012 · The North Dorchester Bay CSO storage tunnel and the facilities connected to it form the final piece and represent the single largest component of the MWRA's $857 million long-term CSO control plan, approved by U.S. Environmental Protection Agency and accepted by the federal court in 2006. WebOur design of the 4-million-gallon CSO storage tunnel incorporated critical design issues to provide an effective facility to meet design objectives, including: Odor and corrosive gas control in the tunnel. We designed ventilation that pulls air from the tunnel through a carbon scrubber. Cleaning of the tunnel of settled solids after an event. togwotee wyoming weather
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WebPhase IIIA includes a 30 ft (9.1 m) ID TBM tunnel, ancillary underground features (i.e. drop shafts, launch shaft, receiving shaft, tunnel pump station shaft, adit tunnels) to support the functionality of the tunnel to serve as a Combined Sewer Overflow (CSO) storage facility. The tunnel is designed to have sufficient volume to store all ... WebA new 10-million gallon linear storage facility, in conjunction with the existing 34-million gallon Intrenchment Creek CSO Storage Tunnel, will be constructed to increase the total storage capacity to 44 million gallons. To construct the new storage facility, the chosen site must first be cleared. WebThe 17-foot diameter, 2.1-mile-long soft ground tunnel will hold 19 million gallons of combined sewer overflows and stormwater, eliminating discharges to the beaches in South Boston. Mining was completed in August 2008. The $148 million project has been constructed by a joint venture of Shank/Balfour Beatty/Barletta. Back to top togx080202