Image courtesy ALCOSAN

Scheduled to get underway later this year, Lane/Brayman’s five-year, $1-billion contract for the Ohio River Tunnel project in Pittsburgh calls for constructing nearly 5 miles of deep tunnels that will channel flows to a new wet-weather pump station at ALCOSAN’s North Side wastewater treatment plant.

A joint venture of Lane Construction Corp. and Brayman Construction Corp. has been selected for the Ohio River Tunnel project in Pittsburgh, the first major component of the Allegheny County Sanitary Authority’s long-term program to reduce sewer overflows and protect the region’s waterways.

Scheduled to get underway later this year, Lane/Brayman’s five-year, $1-billion contract calls for constructing nearly 5 miles of deep tunnels that will channel flows to a new wet-weather pump station at ALCOSAN’s North Side wastewater treatment plant. The project team will use a tunnel boring machine to excavate the main 18-ft-dia. tunnel approximately 118 ft to 150 ft deep on a 3.8-mile route along the Ohio River. The underground network will also include two 14-ft-dia. secondary tunnels measuring approximately 4,500 and 500 ft in length, and a 600-ft-long, 8-ft-dia. dewatering tunnel at the treatment plant.