The I-90 Snoqualmie Pass East Project will reduce congestion, and improve safety and reliability along a 15-mile stretch of the highway from Hyak to the Easton, WA. The project corridor passes through the Okanogan-Wenatchee National Forest and intersects a critical north-south linkage zone for wildlife in the Cascade Mountains. Washington State Department of Transportation (WSDOT) and its partners will help alleviate the effects of the highway by constructing crossing structures that connect wildlife and hydrology across the landscape, and restoring habitat throughout the project area. WSDOT has completed construction of the initial 2.5 miles of the project, which includes two large undercrossings, re-establishment of two fish passable stream channels, and nearly 30 acres of habitat restoration.
I-90 Project website
I-90 Mitigation Development Team Recommendation Report
Phase 1 Pre-construction Wildlife Monitoring Report
I-90 Wildlife Research Brochure