Montana Department of Transportation

Malcolm “Mack” Long, Director


View the Governor’s Coronavirus Task Force site for more information.

Roadside Safety Hardware Resources

MASH Information

Frequently Asked Questions

If you have any questions about the resources on this page, please contact a Montana Highway Barrier Mentor.

National Implementation

AASHTO Committee on Design

FHWA Office of Safety

Helpful Links

Pooled Fund Programs

MDT Guardrail Systems

Approved Proprietary Systems

“W” Beam Guardrail System

Crash Cushions

Cable Guardrail System

Box Beam Guardrail System

Concrete Barrier Rail

Bridge Barrier Rail

Design References and Training

Design References


  • MASH Guardrail Implementation (2018 Preconstruction Conference Presentation) PowerPoint | PDF

FAST Act – Highway Barrier Design Training (2018)

FAST Act – Highway Barrier Inspector Training (2018)