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Engineering

Temporary Concrete Barrier – December 31, 2011 Deadline Looms

According to MDOT’s Frequently Used Special Provision for Temporary Concrete Barrier, all temporary concrete barrier (TCB) in service after December 31, 2011, must be NCHRP 350 compliant. MDOT currently allows the use of “old” TCB sections manufactured prior to September 1, 2006 that meet the requirements of Standard Plan R-52 and