Completed in 1951, the Lake Keechelus Snowshed Bridge is the sole remaining snowshed on the state highway system. Located on heavily traveled I-90, the structure is important for protecting motor vehicle traffic from snow slides along this high elevation section of the I-90 corridor. The bridge’s construction also exemplifies innovative use of materials (such as multiple pre-cast roof units) to expedite construction where elevation and the vagaries of weather limit the working season. Its prosaic shed roof is artfully disguised by stylized Art Deco portal openings whose vertical elements echo the precipitous sweep of the surrounding bridge.