Roadside development & facilities

Find guidance related to roadside and site development, landscape architecture, visual resources, context sensitive design, environmental mitigation, vegetation and plant establishment and climate change adaptation.

166,800 electric vehicle

registrations in Washington in 2023, up from 114,600 in 2022.

87 wetland compensation sites

actively monitored on 918 acres in 2023.

25,000 safe animal crossings

in the Snoqualmie Pass East Project area since 2014.