Yakima River Bridges Cle Elum to Ellensburg
PDCA PROJECT OF THE YEAR AWARD – 2020 This project required the rapid design and construction of two separate temporary bridges,... Learn More
Georgetown WWTS – Outfall
Seattle sewer lines installed in the early- to mid-20th century simply can’t handle the up to 70 million gallons of polluted stormwater that flows... Learn More
Powhatan Wreck Removal
An out of service tugboat, the 81 foot Tug Powhatan sank for unknown reasons from its dock in Starrigavan Bay near Sitka,... Learn More
Valdez Phase 2 New Harbor Development
The City of Valdez New Harbor Development is a multi-year, phased project that will provide new harbor facilities and parking, increased vessel... Learn More
Portage Cove Harbor Expansion
Work involves removal and reinstallation of seaplane float, installation of rock for rubble mound breakwater including Class II thru IV Armor Rock,... Learn More
Howard Creek Bridge Replacement
Replace single-span, 61-ft timber stringer bridge built in 1976 over Howard Creek, located at mile 9 along Index-Galena Road, with a two-lane,... Learn More
SR520 W Montlake to Evergreen Point Bridge Approach Bridge North
Design-build installation and removal of 1.3 miles long pile-supported work trestle, large-diameter drilled shaft installation, and marine heavy lift support.
Box Canyon Dam Upstream Fish Passage
Design-Build installation of a 300-ft long sheet pile cofferdam including dewatering and 60’x135′ pile-supported work trestle and dredge support and disposal of... Learn More
Elliott Bay Seawall Replacement
Furnished and install all components of the marine habitat. This included construction and installation of 2,000 LF of marine mattresses between pre-cast... Learn More
Lower Duwamish Contaminated Sediment Cleanup
Dredging and active placement of Enhanced Natural Recovery (ENR) and ENR+ Activated Carbon (AC) materials to evaluate the effectiveness of ENR+AC compared to ENR alone as a... Learn More