Of Sheet Metal
225 tons
26 miles
Of Plumbing and Mechanical Piping
26,000 hours
Fabrication Shop
Project Description
MacDonald-Miller is partnering with Skanska USA and design collaborators on the 460,000 SF expansion of Snoqualmie Casino, tripling the facility’s size since its original 2008 construction. The project includes a 210-room hotel, 2,000-person convention and entertainment center, destination spa, expanded gaming floors, signature restaurants, and valet parking garage, elevating the casino into a full Las Vegas-style resort.
Our scope encompasses mechanical, plumbing, and controls systems, including:
Mechanical – Installation of 21 air handling units, 3 chillers, 3 boilers, 9 pumps, 324 fan coil units, 110 VAV units, and 40 fans.
Plumbing – Over 26 miles of piping, 8 water heaters, 347 water closets, 349 lavatories, and more than 500 kitchen equipment connections.
Controls – Integration of new systems with the casino’s existing Honeywell platform for seamless operation.
At peak, more than 120 MacMiller tradespeople worked alongside partners VP Electric and Hudson Bay Insulation. Our fabrication shop contributed 26,000 hours, delivering custom ductwork, pipe racks, and skids to accelerate installation.
Despite hillside construction, extreme weather, and integration with a live 24/7 facility, the team successfully advanced this complex project, demonstrating MacDonald-Miller’s strength in preconstruction, fabrication, and lifecycle planning. As the project nears completion, we are proud to continue our partnership with Snoqualmie Casino, including upgrades to expand long-term mechanical capacity.
MacDonald-Miller has been a long standing business partner with Snoqualmie Casino. The Snoqualmie Team relies on the honest and direct approach MacMiller takes with any and all projects they work on with us. Proposals provided by MacMiller are thorough and very detailed, providing peace of mind knowing there will be limited issues, if any. The MacMiller staff that works with the Snoqualmie Team are highly trained dedicated professionals that work hand in hand with the Snoqualmie Team ensuring our needs are met.Mary Lou Patterson, Interim Chief Executive Officer at Snoqualmie Casino
Highlights
Collaboration Efforts
At peak, our team comprised over 120 skilled tradespeople, including sheet metal, plumbing, pipe fitting, low-voltage, and insulation experts, alongside subcontractors VP Electric and Hudson Bay Insulation.
Challenges
This project posed unique challenges, including hillside construction, extreme weather, integration with an existing 24/7 facility, and a compressed timeline. Despite these, our team worked tirelessly to ensure the project’s success.
Scope
This expansion includes a 210-room hotel, a 2,000-person entertainment and convention center, a destination spa, expanded gaming floors, two signature restaurants, a valet parking garage, and all the amenities of a Las Vegas-style casino resort.
Our Partners
Skanska USA
Bergman Walls & Associates
FEA Consulting Engineers
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