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 |
---|---|---|
2024-01 | 3/14/2024 | 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 on ice and snow.
It's easier to skid or lose control traveling at higher speeds. Give yourself more time to stop.
Carry chains, practice installing them.
Winter conditions could mean chains are required on your route. Practice putting them on your vehicle ahead of time.
Pack your winter car kit.
Carry extra supplies like warm clothing, ice scraper and brush, jumper cables and other emergency items.