Current Projects

This project will build a river pump station to pump 8,500 acre-feet of water annually from the Clearwater River to Mann Lake, transporting irrigation water to a reservoir seven miles away. The river intake work consists of a concrete…

IMCO was awarded the Washington State Ferries system-wide ferry terminal contract to replace critical components at four terminals across the Puget Sound. Upgrades include headframes, lift beams, counterweights, and mechanical and electrical systems to allow transfer spans to adjust…

IMCO Construction is leading a joint venture with Knife River Corporation to tackle challenging construction conditions in Nampa, Idaho. The IMCO/Knife River team is under a CMGC collaborative delivery contract to deliver 2.3 miles of deep sewer trunk line, ranging…

IMCO Construction is delivering upgrades to the existing wastewater treatment plant (WWTP) at a dairy facility in Nampa, Idaho. During the proposal phase of the project, IMCO identified multiple value engineering opportunities on the project that provided immediate cost…

IMCO Construction is performing the Kingston Ferry Terminal Seismic Retrofit, a critical project to strengthen the existing facility against future earthquake events. The work includes complex structural reinforcements, removal and reinstallation of the terminal bridge, and installation of temporary…

​IMCO Construction has begun the R.G. Haley and Cornwall Avenue Landfill Site Cleanup contract along the Bellingham Bay waterfront, at the south end of Cornwall Avenue. This area was once an active industrial operations sites, including a wood treatment…

IMCO Construction is building a 200MW/800MWh battery energy storage system for a high-trust client in Ada County, Idaho. Work includes the installation of 208 battery enclosures for lithium-iron phosphate cells and 52 skids, site preparation, and concrete foundations. The…

IMCO Construction is building two advanced membrane water treatment plants for the Port of Morrow, representing a major step forward in regional water infrastructure.   Each of the two facilities feature a comprehensive suite of water treatment processes designed to ensure high-quality output. These processes include sand…

IMCO Construction is building delivering a new headworks facility in partnership with Keller. The facility will include new influent pumping, screening, grit removal, and associated infrastructure. The Nampa Wastewater Treatment Plant Project Group G New Headworks project will also…

IMCO Construction and designer Carollo are partnering to replace sewer utilities for the City of Tacoma, performing preconstruction services, evaluating options to determine the best alignment for new large-diameter pipe and a strategy for the re-use of existing pipeline…

This project provides improvements to the existing lift station and force main pipes to provide adequate pumping capacity to facilitate future sewage conveyance at the Roeder Lift Station along the downtown Bellingham waterfront. The Roeder Lift Station Capacity Improvements…

Since 2016, IMCO has been continuously operating the Holden Mine water treatment plant for mining giant Rio Tinto as part of an environmental remediation effort at the site. IMCO constructed and commissioned the facility which removes heavy metals from…