Nestled in a valley, Issaquah High School is the District’s largest school, host to almost 2,000 students. The all-new, three-story facility replaced an older high school that could no longer meet the District’s academic needs. Our structural team worked on integrating and supporting key architectural features including two-story, steel-framed sky bridges connecting classroom wings as well as glass curtain walls providing stunning views of the Cacade foothills. Developed by our civil team, the project’s stormwater management system gave the District a sustainable and economical alternative to building an expensive detention system. More than 20 rain gardens and sections of porous pavement take advantage of the site’s excellent soil conditions to infiltrate more than 90% of all stormwater. The rain gardens combined with an underground treatment system remove contaminants from any runoff before discharging into the site’s natural conveyance systems.
Issaquah School District
285,285 SF, 30 Acres
Mahlum Architects, Cornerstone General Contractors
WSSP Certified, CEFPI- "Project of Distinction" 2012, CEFPI Pacific Northwest Region- "Merit Award" 2012, AIA- Civic Design Award" 2013