Bridge Design Technical Memorandum No. 95 Revision 1 – Concrete Roadside and Median Barriers
Thursday, September 4, 2025 at 2:03:58 PM
Attention Consultant Community:
1. The subject Bridge Design Technical Memorandum (BDTM) has been approved by the Bridge Design Engineer Administrator and is published on the DOTD Bridge Design Section website at:
https://www.dotd.la.gov/about/office-of-project-delivery/engineering/bridge-and-structural-design/design-manuals-memoranda/bridge-design-technical-memoranda/
The Active BDTM Index has been updated and posted.
2. BDTM Summary:
This BDTM revision incorporates LADOTD barrier policy with respect to 1.) whether or not roadway finish grade elevations are equal to or greater than the 100-year base flood elevation, and 2.) the corresponding required type of barrier drainage details.
Also, this BDTM revision includes re-organized barrier design requirements to clarify between overall barrier system design, and the specific design requirements for the barrier and foundation components.
3. This email is copied to those copied on the BDTM, and additionally to Consultant Contracts Services staff to distribute this e-mail to consultant firms on the DOTD solicitation list.
4. This email requests each consultant firm Principle-In-Charge to inform your design staff of this BDTM.
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