City of Portland – S.W. Vincent / S.W. Capitol Hwy. Sewer Replacement

Emery & Sons Construction started construction in October, 2013 on a project to replace a cracked and deteriorated 24-inch sewer pipe built in 1929 underneath S.W. Capitol Highway and Terwilliger Blvd. Jack and bore construction was utilized to replace the pipe underneath S.W. Capitol Highway. Emery & Sons excavated a launch shaft in the pedestrian island on the north side of the highway and a receiving shaft on the south side for the jack and bore contractor to bore underneath the highway and install the sewer pipe into place without disturbing the surface. Emery & Sons will also replace a sewer pipe next to S.W. Vincent Place that required the installation of a temporary pipe in Terwilliger Blvd. and the pedestrian trail in George Himes Park to pump sewage around the construction area. Bypass pumping continued for nearly two months, 24-hours a day. Work included construction, maintenance, and removal of temporary work zone traffic control measures, erosion control measures, and temporary flow diversion; Removal of structures & obstructions, clearing & grubbing, and earthwork operations; Construct sewer pipe using open cut and pipe jacking; Construct manholes and inlets; Perform roadside improvements, pavement removal and road surface restoration, including cold planning, aggregate base, HMAC wearing surfaces and concrete curb; Abandon sewer pipe and manholes; roadside development including seeding and planting; 96” caisson installation.

Owner:  City of Portland

Engineer:  City of Portland

Location:  Portland, Oregon

Completion Date:  2014

Bypass Pit