Transportation

The Anacortes Ferry Terminal Tollbooth Replacement contract brought upgrades to the 50-year-old facility for Washington State Ferries. This project replaced the existing tollbooths and constructed a new service building, housing a tollbooth, restroom, office space, and an electrical and...

The primary goal of the project was to improve existing drainage issues at the Anacortes Airport. The airport is a federally funded public airport open 24 hours per day, every day of the year. Crews graded an existing drainage...

The Orchard Combat Training Center, a 143,000-acre facility located 18 miles south of Boise within the Nelson Snake River Birds of Prey National Conservation Area, serves as a training site for the Idaho National Guard and Army Reserve.  IMCO...

Near the end of September 2019, IMCO started construction on the first phase of the Mountains to Sound Greenway Trail from I-405 to 132nd Avenue SE in Bellevue, Washington. This contract improved safety for pedestrians and bicyclists in the...

This fish passage improvement work opened more than 11,000 feet of additional habitat for salmon and Searun Cutthroat trout. IMCO removed three fish barriers under State Route 9 in Whatcom County. The existing round culverts had too steep of...

The Mukilteo-Clinton ferry route connects Whidbey Island to the Seattle-Everett metropolitan area, the system’s busiest route for vehicle traffic and the second highest in annual ridership, with over four million total riders annually. The new terminal won many design...

The Keller Ferry Terminal project involved the replacement of pontoons, approach spans, decking, structural framing, railing, anchors, mooring components, coating systems, and the relocation of electrical and mechanical systems at the Washington State Keller Ferry Terminal.  IMCO was allotted...

Snohomish County and the City of Lynnwood worked together to help ease flooding in the vicinity of the Maple Road and Ash Way/Interurban Trail intersection. Flooding events originating from Swamp Creek, forced multiple intersection closures per year at this...

IMCO Construction made improvements to eastbound 1-90 by replacing select cement concrete panels and shoulders, cement concrete pavement grinding, bituminous pavement grinding, and paving with HMA. Three westbound bridge decks and one eastbound bridge deck were rehabilitated by scarifying,...

The Yesler Bridge Rehabilitation Project, Yesler Way over 4th Avenue S, was also warded the 2019 ACEC Engineering Excellence, National Silver Award for Structural Systems, multiple APWA awards, and the 2018 ENR Northwest Best Renovation/Restoration project. IMCO Construction rebuilt...

In early 2015, IMCO Construction began work on this federally funded highway project in Seattle, Washington valued at over $120 Million. The contract was phase 3 of a three-phase $220 Million project to provide significant improvements to regional mobility,...

Following the catastrophic Oso, WA landslide that covered a mile of the roadway in Northwest Washington, IMCO crews worked around the clock to complete this contract for WSDOT in under a month. The scope included the very careful removal...

IMCO oversaw construction of a federally funded railroad project for the City of Shelby and the Northern Express Transportation Authority. This effort represented the fourth and final phase of a major regional railroad upgrade that relocated a small BNSF...

This project provided traffic congestion relief at the SR-20 and Interstate 5 interchange in Washington State. Improvements were made to the traffic crossings on SR-20 west of Burlington. The highway was widened from two to four lanes for six...

The SR 543 Project reconstructed the truck crossing lanes and the US-Canadian Border in Blaine, Washington. Work included construction of two bridges, cast-in-place concrete retaining walls, noise walls and new concrete roadways.  The project was granted substantial completion 176...