Fish Passage and Habitat Restoration


Thornton Creek Confluence Project

2/28/14

Location: Seattle, WA OCI was responsible for the TESC and stream bypass plan for this flood management and habitat restoration design project. Deliverables included plans and detail sheets, specifications, engineer’s cost estimate, and the Stormwater Pollution Prevention Plan (SWPPP). Challenges included:  bypass of a flashy, urban stream and isolation of the sediment pond during dredging.
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Water Line Removal

2/26/14

Location: Bellevue, WA OCI was responsible for the removal of an asbestos concrete waterline suspended 5 feet above Kelsey Creek. The design required coordination with the fish window, evaluation of impacts to the stream, and addressing limited access to the site. OCI performed site visits, completed the design for the removal and streambank restoration, and
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Sanitary Sewer Repair Program

2/26/14

Location: Bellevue, WA OCI is currently working under a four-year contract with the City of Bellevue to produce PS&E for approximately 40 sewer repair projects per year. The OCI team identified the sites using the City’s GIS system and its Maximo Asset Management program. All identified repairs were reviewed and verified using CCTV prior to
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Sewer Replacement Program

2/26/14

Location: Bellingham, WA Each winter, the City of Bellingham dedicates $2 million to design and construct several miles of sewer pipe replacement. Using the City of Bellingham’s asset management software, the pipes were identified as deficient and in need of replacement. OCI was responsible for reviewing CCTV videos and inspection reports, and visiting each of
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Ballard Bridge Seismic Retrofit, Phase II

2/26/14

Location: Seattle, WA OCI was contracted to monitor water quality and collect, test, and report on water samples for the Ballard Bridge Seismic Retrofit Project. OCI recorded testing locations on a Water Quality Monitoring Map, and provided daily and monthly summary field reports on water quality during in-water construction. The project included retrofitting of the
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