All Projects

Balch Consolidation Conduit Shafts & Pipelines

The Balch Consolidation Conduit Shafts and Pipelines project (“Balch”) was a key component of the City’s Controlled Sewer Ooverflow program and required installation of 8,000 feet of 84-inch and 54-inch diameter pipes via microtunneling at depths of 20 to 75 feet to carry sewage and stormwater runoff from the Balch Drainage Basin to the West … Continue reading Balch Consolidation Conduit Shafts & Pipelines

Lower Elwha Klallam Tribe Fish Hatchery & Pipelines

This project consisted of the construction of site improvements, 6,500 feet of 36-inch water supply and drainage pipelines connecting to the new water treatment plant, flow-through levee, water supply wells, new hatchery and storage buildings, fish culture facilities including 600,000 gallon raceways with base preparation and foundation drainage system, pollution abatement pond, adult holding pond, … Continue reading Lower Elwha Klallam Tribe Fish Hatchery & Pipelines

10.0 MG Reservoir Improvements and Transfer Pump Station

The scope of work included construction of a transfer s 10 MG reservoir site, valve vault replacement, reservoir improvements, a meter vault and site improvements consisting of frontage improvements, street rehabilitation and landscaping. The pump station construction included deep suction piping and concrete basement structure, valve appurtenances, the installation of six new vertical turbine pumps, … Continue reading 10.0 MG Reservoir Improvements and Transfer Pump Station

Lake Oswego Interceptor Sewer – Lake Down Contract

The Lake Down Contract involved the installation of over 7,300 feet of previously fused large-diameter high density polyethylene pipe at grade tolerances of 0.02 inches to connect the buoyant interceptor to the existing sewer system. Pile supports and caps and pipe cradles were welded to steel piles to support the new pipeline and a cathodic … Continue reading Lake Oswego Interceptor Sewer – Lake Down Contract

Cowlitz Salmon Hatchery Remodel

The Cowlitz Salmon Hatchery facility, before remodeling, consisted of a fish barrier across the Cowlitz River, fish ladder, transportation channel, fish separation facilities, thirty-six ponds, eighteen early rearing kettles, river water pumping plant, well water supply, pollution abatement ponds, residences, and a hatchery building with a visitor facility. The project included a remodel of the … Continue reading Cowlitz Salmon Hatchery Remodel

Wilder Project Group

40th Street Improvement South Beach Village Subdivision Lost Creek Subdivision Wilder Subdivision This major mixed-use development in Newport, Oregon on the central Oregon coast is a 200-acre sustainable community bordering the campus of the Oregon Coast Community College. Eventually, the project will include specialty shops, parks, apartments, cottages and single-family homes. With multiple stakeholders – … Continue reading Wilder Project Group

Brightwater Conveyance System – North Creek Facilities

In response to growth in the region, King County built a new wastewater treatment system, the Brightwater Conveyance System, to serve north King and south Snohomish counties. Brightwater construction occurred at five sites: the treatment plant site in Snohomish County near Woodinville; and four portal sites in Bothell, Shoreline, Kenmore, and unincorporated Snohomish County. Construction began in … Continue reading Brightwater Conveyance System – North Creek Facilities

Woods Street Project Group

Emergency Woods Street Trunk Sewer Relocation; Woods Street Trunk Sewer Abandonment; and Emergency Woods Street Trunk Sewer Rehabilitation. This group of three emergency contracts negotiated with the City of Portland were to replace severely deteriorated gravity sewer lines that serve the Ross Island Bridge and Naito Parkway interchange and the Lair Hill residential neighborhood of … Continue reading Woods Street Project Group