Tunnel Business Magazine

APR 2018

TBM: Tunnel Business Magazine is the market leader for North America. TBM is written for leading professionals in all aspects of tunneling and covers project stories, design elements, contracting strategies, legal issues, new technology and more.

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TUNNELINGONLINE.COM TBM: TUNNEL BUSINESS MAGAZINE // APRIL 2018 B U S I N E S S B R I E F S 9 company, announced that it has been awarded a $187 million joint venture con- tract (40% OHL USA Inc., 40% Posillico Civil Inc., 20% SELI Overseas USA Inc.) by Suffolk County Department of Public Works to replace existing outfall pipe at the Bergen Point Waste Water Treatment Plant (WWTP) in Baby This is the largest construction proj- ect in Suffolk County in several decades and OHL's first project on Long Island, expanding OHL's regional presence in the area. Construction started on Feb. 8, 2018, and will be completed by summer 2021. The project includes the construction of a 14,200-ft, 120-in. ID tunnel through a mixture of soft soil materials under the Great South Bay with the use of a tun- nel b will be constructed to replace the exist- ing prestressed concrete cylinder pipe (PCCP) outfall, which carries millions of gallons of treated wastewater, connect- ing the Bergen Point Wastewater Treat- ment Plant (WWTP) to the Barrier Island under the Great South Bay. The new tun- nel will address the concerns of potential failure of the current pipe and has a lon- ger lifespan. "We are proud to be a part of this proj- ect, which will ultimately help protect the waters and marine life of the Great South Bay for generations to come," said Ashok Pa Our team will be using a state-of-the-art tun- nel excavation and construction process including the us " The tunnel will be excavated and concurrently lined using precast con- crete segment rings. The JV has selected fective and efficient means of tunnel excavation and elected to use 48-in. wide precast segment liners. The shaft construction will be divided into major work phases including site preparation, excavation of the launch shaft and installation of the - stalled, tunnel excavation will proceed in 4-ft pushes, followed by the installa- tion of the permanent tunnel lining. Ad- ditionally, the team will also complete ancillary work within the tunnel includ- ing the installation of new piping and valving, associated plumbing, HVAC and electrical work. OHL has successfully completed nu- merous tunneling projects across the glob the East Side Access Project in York City, Water Siphon Project connecting Staten Island and Brooklyn, and the To- ronto York – Spadina Subway Extension in Toronto, Canada. OHL-led JV Awarded Bergen Point Outfall

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