All Projects

Columbia Blvd. Wastewater Treatment Plant Co-Generation Facility

The City of Portland (City) is known nationwide for it’s commitment to sustainability and energy efficiency and the Columbia Boulevard Wastewater Treatment Plant (CBWTP) Co-Generation Plant is just the latest in the City’s efforts to promote energy efficient operations.       The Co-Generation Facility project included installation of two 850 kW generators; process piping … Continue reading Columbia Blvd. Wastewater Treatment Plant Co-Generation Facility

Holmes Street Combined Sewer Separation

The sanitary sewers in the Holmes Street area were a combined system with both storm water runoff and wastewater from homes and businesses are carried by the same sewer service lines to the wastewater treatment plant, resulting in system overflows during rain events. The City of Frankfort Sewer Department developed a Long-Term Control Plan for … Continue reading Holmes Street Combined Sewer Separation

Brightwater Conveyance System – Central Contract (Swamp Creek Connector)

In response to growth in the region, King County built a new wastewater treatment system called the Brightwater Conveyance System to serve north King and south Snohomish counties. Brightwater construction included five sites: the treatment plant site in Snohomish County near Woodinville; and four portal sites in Bothell, Shoreline, Kenmore, and unincorporated Snohomish County. Construction … Continue reading Brightwater Conveyance System – Central Contract (Swamp Creek Connector)

Albany Regional Multimodal Center & US 20 / OR 99E Interchange

The Albany Regional Multimodal Center & US 20 / OR 99E Interchange projects restored a local cultural treasure, the historic Albany Train Depot Building, and provided the region with an attractive park setting for the new multimodal transportation center that serves as a critical transportation hub for the City.     The project is located … Continue reading Albany Regional Multimodal Center & US 20 / OR 99E Interchange

Lower Northwest Interceptor – Sacramento Force Main

The Sacramento Force Main Project is the southernmost section of the overall Lower Northwest Interceptor Program. It conveys flows from the Southern Sacramento River Crossing project, just north of Freeport, California, through the Delta Shores area of Sacramento, to the Sacramento Regional Wastewater Treatment Plant (SRWTP). The project crosses the environmentally sensitive buffer lands area … Continue reading Lower Northwest Interceptor – Sacramento Force Main

Spanaway Loop Bypass Interceptor – Schedule C

This challenging sanitary sewer project was located in the road right-of-way on a busy north-south commuter route connecting to Interstate 5 and bordering McChord Air Force Base. Our contract on the project called for completion of the work that was started by another contractor who was eventually terminated for failing to complete the project. The … Continue reading Spanaway Loop Bypass Interceptor – Schedule C

75MGD Transmission Conduits – Geren Island Phase 1

In the late 1990’s the city of Salem experienced flooding and resulting water shortages that made the improvements to the existing water system a priority. This project was part of the Mutual Agreement and Order (MAO) between the City of Salem and the Oregon Department of Environmental Quality (DEQ) designed to add 75 million gallons … Continue reading 75MGD Transmission Conduits – Geren Island Phase 1