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.

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.