Projects

IMCO completed remediation work at a hydroelectric dam near Bliss, Idaho. The facility, built in 1950 on the Snake River, required improvements to an area downstream of the spillway to prevent erosion. This design-build project focused on safety and…

IMCO installed two 41-foot wide radial gates on the main dam spillway of Thompson Falls Dam. The new radial gates replaced the existing flashboard system and provide Northwestern Energy with additional automated spill capacity. The radial gates were installed…

Project Description: IMCO is constructing a new headworks facility in partnership with Keller. The facility will include new influent pumping, screening, grit removal, and associated infrastructure. The Nampa WWTP Project Group G New Headworks project will also finalize site-wide…

The Boise Project Board of Control (BPBC) awarded the New York Canal Lining project to IMCO in May 2024. IMCO replaced one linear mile of canal lining in downtown Boise’s New York Canal to enhance the canal’s integrity, improve…

IMCO is constructing a new eight million gallon prestressed and partially buried concrete tank to store the City of Everett’s drinking water. The current tank is susceptible to seismic damage and this new structure will provide an upgraded system…

IMCO Construction is building the process water treatment facility for a major food company at their new potato processing plant in central Washington. The process water treatment system will treat waste process water and clean through a screening, clarification,…

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…

IMCO teamed with Stantec on this design-build project to convey water from the Snake River up to a new water treatment plant at the Mountain Home Air Force Base. An intake in the Snake River with three vertical turbine…

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. The improvements consist of construction of a new sanitary sewer lift…

IMCO is constructing a 200MW/800MWh Battery Energy Storage System. The work includes installation of 208 battery enclosures for lithium-iron phosphate cells and 52 skids, site preparation, and concrete foundations. 

IMCO performed site preparation, cast-in-place concrete foundations, and set the batteries for a new 40-megawatt battery energy storage system. This is part of the client’s goal to build 1,700 megawatts of battery storage by 2040.  

On January 18, 2023, the City of Lewiston’s 100-year-old potable water reservoir ruptured. The escaping water caused considerable damage to the earthen berm, sloped concrete liner, and cover structure. The City reached out to IMCO and Stantec to design and perform…