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Sandy River Conduit Relocation - Portland, OR

Due to damage caused by sediment as well as security concerns, the City is relocating water conveyance conduits below ground. Kiewit Pacific Co., a subsidiary of Kiewit Corporation, is constructing the Sandy River Conduit Relocation project. This design-build project involves taking the two existing above ground conduits and placing them in a 441-linear-foot tunnel under the Sandy River.

East Side CSO - Phase 2 - Portland, OR

Completing the longest micro-tunnel drive in North American history, a Kiewit-led joint venture is constructing Phase 2 of the $368 million Portland Combined Sewer Overflow project. Work includes excavation and lining of a 22-foot-diameter tunnel constructed 85 to 165 feet below ground and seven separate shafts located along the alignment.

Harlem River Tunnel - Manhattan, NY

The $85.2 million Harlem River Tunnel project includes two 165-foot-deep circular shafts connected by a 675-foot-long horseshoe tunnel. Bedrock in this part of Manhattan is white marble and found at a depth of about 70 feet below grade.

East Side CSO - Phase 1 - Portland, OR

When completed in 2011, this massive tunnel construction program will virtually eliminate combined sewer overflows into the Willamette River. A Kiewit-led joint venture completed preconstruction services under Phase I of the project. Currently, Kiewit is performing work on Phase 2, the largest component of Portland's CSO program, a $381 million network of shallow pipelines.

Chattahoochee Tunnel - Cobb County, GA

As the largest project ever awarded by the Georgia Water & Sewer Authority of Cobb County, the $114 million Chattahoochee Tunnel, located just northwest of Atlanta, will supplement the current sewage system. The scope of work includes excavating a 49,600-ft.-long tunnel 100- to 350-ft deep, excavating two construction shafts and a pump station, and constructing four intake structures.

Tren Urbano - Rio Piedras Section - San Juan, PR

The $250+ million Tren Urbano-Rio Piedras design-build project involved the construction of a one-mi.-long tunnel and two subway stations. A Kiewit-led joint venture used three different soft ground tunneling methods to address the wide variety of ground conditions.