MONITOR TOWNSHIP (WJRT) (3/23/2018) - One lane of southbound I-75 remained closed in Bay County's Monitor Township two days after a semi truck hit a support for the Salzburg Road overpass.
The crash happened around 2 p.m. Wednesday when the truck, which was pulling a flatbed trailer loaded with fiber board, lost control and hit the bridge support structure.
The driver escaped with minor injuries, but his semi truck was destroyed in an ensuing fire.
The impact caused a large crack all the way through one of the support pillars, possibly compromising the structural stability of the bridge. The Michigan Department of Transportation had to install temporary support pillars underneath the beams to carry the weight.
However, a specialized MDOT emergency bridge team determined Thursday night that a different type of support beam would be required than what originally was going to be installed due to damage to a beam.
The new temporary support structure is larger.
MDOT crews have been working around the clock since the crash to complete the emergency repairs. They wrapped up the work on Friday, then began assessing what kind of permanent repair will be necessary.
Three lanes of southbound I-75 are open from U.S. 10 to M-84 and the Salzburg Road overpass also reopened. The right lane of I-75 will remain closed under the overpass until MDOT completes a permanent repair.