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.

NumberDateSubject
2025-01 04/03/2025 Bridges with fill over superstructure (PDF 88KB)
2024-06 09/13/2024 Electronic File Sharing Policy (PDF 834KB)
2024-05 09/13/2024 New State Legal Truck (PDF 934KB)
2024-04 07/29/2024 Bridge Design Manual (LRFD) M 23-50.23, July 2024 (PDF 200KB)
2024-02 04/19/2024 Buried Structure Standard Plan Implementation Updates (PDF 42MB)

Slow down – lives are on the line.

Excessive speed was a top cause of work zone collisions in 2024.

Phone down, eyes up.

Work zones need our undivided attention.

It's in EVERYONE’S best interest.

96% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.