Projects


Kent/Auburn Conveyance System ImprovementsGeolocation: 47.548, -121.9836

This project consists of approximately 12,500 linear feet of gravity trunk sewer and 10,000 linear feet of sewer force main, and includes five railroad and highway trenchless crossings. Terracon completed pre-design geotechnical and environmental evaluations for several alignment alternatives. Following these evaluations we were asking to perform design phase geotechnical and environmental evaluations for the four preferred alignments that were selected during the pre-design phase.

King County, WA

Services

Associated Office


SeattleGeolocation: 47.8005, -122.3181

The Seattle office provides multiple related service lines to clients at local, regional, and national levels. In the Northwest, Terracon specializes in geotechnical engineering, environmental consulting, and construction materials engineering and testing services. Terracon's basic strength is our commitment to our local clients; we are proud of our commitment to the Northwest region. The senior engineering staff of Terracon's Washington offices offers more than 250 years of local experience.


After operating in the greater Seattle area and Portland, Ore., since 1998,…