Transportation Drainage


I-5 – SR 510 Diverging Diamond Interchange

8/22/18

Construction Bid Opening Date: August 22, 2018 OCI designed the stormwater and temporary sediment and erosion control elements for this WSDOT Design-Bid-Build project located at the I-5/SR 510 (Marvin Road) interchange in the City of Lacey. The project will upgrade the existing interchange to a Diverging Diamond Interchange (DDI) and add a southbound frontage road
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SR 167 Puyallup River Bridge

2/25/14

Location: Puyallup, WA OCI was responsible for drainage and TESC design for temporary detour and permanent bridge across Puyallup River at the outer limits of City of Puyallup from Milepost 6.19 to 6.25. The project involved removing the existing degraded southbound steel truss bridge (Meridian Street Bridge) and replacing it with a new two lane
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SR 99 Tunnel Project

2/25/14

Location: Seattle, WA OCI was under contract with HNTB, part of Seattle Tunnel Partners, and developed site specific and construction phase specific TESC Plans and Narrative for the project. Major areas of concern for erosion and sediment transport on this project were the south and north portals, particularly the cut and cover section of the
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I-405/NE 195th Street to SR 527

2/25/14

Location: Bothell, WA OCI was responsible for TESC Plan Sheets and TESC Plan Narrative to add one auxiliary lane on northbound I-405 from NE 195th Street to SR 527. The project also included improvement to storm drainage resulting from the road widening exercise. OCI utilized MGSFlood to size temporary sediment ponds and designed other TESC
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SR9/92 Intersection Improvements Design Build Project

2/25/14

Location: Snohomish County, WA OCI was responsible for the Drainage Design and Temporary Sediment and Erosion Control (TESC) Design for the SR 9/92 Intersection Improvements Design Build Project in Snohomish County, WA. The main elements of the proposed development consist of widening SR 9 north of the intersection and widening SR 92 east of the
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