Active Bridge Design Manual Memorandums
Bridge design memorandums are issued as interim updates to the Bridge Design Manual (M 23-50). Active design memorandums supersede the contents of the Bridge Design Manual and are currently in force.
Number | Date | Subject |
---|---|---|
2024-03 | 4/19/2024 | Standard Plan Barrier and Moment Slab on Structures (PDF 221KB) |
2024-02 | 4/19/2024 | Buried Structure Standard Plan Implementation Updates (PDF 42MB) |
2023-03 | 12/20/2023 | Bridge Design Manual (LRFD) M 23-50.22, September 2022 (PDF 50KB) |
2023-04 | 12/20/2023 | WSDOT MSE Wall Support Abutment Bearing Limits (PDF 124KB) |
2023-05 | 12/20/2023 | WSDOT roadside safety hardware and barrier update (PDF 570KB) |
04-2022 | 08/20/2022 | Revisions to Bridge Design Manual M 23-50.21, June 2022 Publication (PDF 141KB) |
Slow down – lives are on the line.
In 2023, speeding continued to be a top reason for work zone crashes.
Even one life lost is too many.
Fatal work zone crashes doubled in 2023 - Washington had 10 fatal work zone crashes on state roads.
It's in EVERYONE’S best interest.
95% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.