Following our successful engagement on the Constable Energy Project, we provided design-assist support for another energy storage project. We provided cost estimates and supported development of various underground improvement options that addressed this project’s additional complexities from contaminated soils, liquifiable soils, drilled ground improvements, cement treated soils and the facility’s proximity to the Willamette River. 

Our construction phase effort included excavation and grading efforts to support multiple different trades, including the concrete team, crane crews, boring of medium voltage feeds, site electricians and overhead transmission contractors. Our ground improvements included structural excavation for geopiers, grading for the concrete crews, and several thousand linear feet of electrical trenching. We worked in close coordination with the GC and our trade partners to schedule and sequence this work to maintain a streamlined flow for our teams and our trade partners. 

High water tablesand deep excavation needs were a particular challenge for this project. TheC&W team managed a significant dewatering effort, leveraging dewatering wells, filtration of contaminated waters and other mitigation methods as we dug deeper, to overcome this complexity. 

C&W also supported the public roadway re-construction of Time Oil Road and accesseasements. This project was completed complete on-budget and ahead of schedule.

Our team worked through upgrading roughly 5,000 LF of an existing storm sewer system and water quality swales within Burgard Way, maintaining access for Schnitzer Steels, Portland Container, and miscellaneous other businesses. In addition to working through an active roadway and operating industrial facility, our team developed multiple work plans to address unforeseen underground obstructions, high watertables, unstable sands, connection of undocumented storm sewer pipes, and crossing of active railroad lines.

Our team provides ongoing and major project support for maintenance and facility upgrades at OHSU. Our work is conducted in an active research facility with hazardous waste and pathogens. Some recent projects have included temporary pumped bypasses for utility relocates and upgrade and excavation of new structures, pens, loading facilities and chemical storage.

We acted as the prime contractor to expand the existing receiving area, flammable storage facilities, and stormwater treatment facilities, which included utility reroutes. We managed a team of eight subcontractors, leading schedule development and weekly OAC meetings. We delivered this project ahead of schedule.

This project repaired a failing sanitary sewer system. Our construction approach included by passing the live system, connections for unforeseen sanitary sewer laterals, limited work hours and noise limitations to ensure ongoing quality of care for hospital patients. In addition to the exterior construction, we also excavated the basement level of the hospital while maintaining access for hospital staff to support sewer pipe replacement.

This project included demolition of an existing parking lot and regrading it for a new tilt-up building. The team navigated deep utilities, sewer, and stormwater infrastructure. With the building’s proximity to the Willamette Slough, we sequenced excavation crews in coordination with the ground pier, deep soil mixing, and cement treating subcontractors while maintaining the project schedule.

We provided earthwork, utilities, and site preparation for the new 58,000 SF elementary school, which included outdoor learning spaces designed for year-round use.

We provided earthwork, utilities, and site preparation for this major modernization project that included a 68,000, two-story Career Technical Education building.

This new 79,800 SF school was built on the same site as the original building. The project included new parking and pickup/dropoff areas, a kitchen deliveries service yard, onsite stormwater treatment and detention, playground and playfield spaces, and a garden bed area. We provided erosion control, demolition, earthwork, structural excavation, landscape specialty footing prep, sanitary sewer, storm sewer system, waterline system, site finishes, public improvements, site electrical trenching, and plumbing trenching.

This project reimagined a 16.5 acre community with site upgrades and new buildings to accommodate 224 new homes, a new street grid, walking and biking loop. Our work include erosion control, site demolition, tree protection and removal, mass excavation, grading, structural excavation, site and other utilities, and dewatering and water storage solutions.

We provided all sitework, site demolition, site clearing, earthwork, and site utilities forthis new readiness center and armory for the Oregon Army National Guard that replaced the existing armory.

We provided earthwork and final grading, paving and drainage, stockpiling/disposal of excavated soil, temporary drainage ditches, excavation, and trenching for this new industrial gas production facility serving Micron Technology.