Standard Plans
Publication URL
Publication Number
M 21-01
Manual Manager
Bill Berens, 360-705-7256
Originator
Design Office, Engineering and Regional Operations Division
The manual contains standard engineering drawings used for road, bridge, and municipal construction.
8,683 animals crossed the Snoqualmie Pass East Project area
as recorded by WSDOT and partners in 2020 and 2021.
46% increase in Amtrak Cascades ridership to 251,000 passengers
in 2021 compared to 172,000 in 2020.
Nine wetland and stream mitigation sites across 32.7 acres added
to our monitoring program in 2021 to help offset climate change impacts.