Sunrise View Stormwater Bypass

Three alternatives were developed to resolve neighborhood flooding caused by off-site drainage and inadequate public and private stormwater infrastructure. PACE provided hydrologic/hydraulic analysis, preliminary drawings, and cost estimates for each alternative and led a public meeting. The preferred alternative was…

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Pump Station No. 25

The city of Shoreline's Pump Station No. 25 needed major upgrades to protect the adjacent properties and structures from flooding. PACE evaluated options to address the flooding, provided a complete topographic and boundary survey, and assisted with neighborhood outreach. The…

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Kirkland Stormwater Decant Facility

PACE provided design for the construction of a Washington State Department of Ecology grant-funded stormwater decant facility to receive, process, and dispose of excavated materials and vactor truck waste generated by the city of Kirkland’s maintenance activities. The project converted…

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Ellensburg Stormwater Decant Facility

PACE provided design for the construction of a Washington State Department of Ecology grant-funded stormwater decant facility to receive, process, and dispose of the materials removed from the various catch basins and drainage facilities located throughout the city of Ellensburg.…

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Bellevue On-Call Stormwater Retrofit

PACE provided on-call engineering services to repair stormwater conveyance piping throughout the city’s urban growth area. The sites were selected based on pavement restoration requirements, type of failure, and funding. PACE’s services included sub-basin hydrologic modeling, condition and capacity evaluation,…

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Ash Way Flood Study

This comprehensive study examines causes and potential solutions for flooding at Ash Way and Maple Road. PACE provided a topographic survey, hydrologic/hydraulic modeling, solution alternatives, and construction costs for each alternative. Our analysis evaluated alternatives based on weighted criteria developed…

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Wonser Woods Bridge

PACE’s structural team designed a 110-foot-long steel girder and precast concrete bridge spanning Clear Creek near Estacada, OR. The goal of this grant-funded project was to improve the fish habitat in this reach of the creek. The new bridge was…

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Sundeleaf Plaza

Sundeleaf Plaza is an urban park adjacent to Lakewood Bay. PACE staff designed a 110-foot-long by 18-foot-tall seawall to retain the new plaza. The project also consisted of additional park structures, including secondary retaining walls, a reinforced masonry fireplace structure,…

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Campus-Wide Building Project

Phase 1 of this two-phase project included condition assessment of seven 1940s-vintage timber buildings to determine the feasibility of upgrading the structures for leasing potential. Phase 2 included designing upgrades to six existing buildings and 11 new buildings. PACE provided…

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Scriber Creek Pedestrian Bridge

The city of Brier owned and maintained a wooden pedestrian bridge that was built in the early 1980s and crossed Scriber Creek as part of a neighborhood trail. This bridge, supporting a gravity sewer crossing, was in a severe state…

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