Type M Barrier
Type M barrier is a non-proprietary temporary concrete barrier developed by the Midwest Roadside Safety Facility. It has been successfully crash-tested in accordance with NCHRP Report 350 Test Level 3. Connections consists of steel pins placed through (3) steel loops at each end of the barrier. Type M is suitable for applications where the barrier is to be restrained, such as adjacent to open excavations or on bridge decks.