Bridges take a beating in Michigan, with a damaging freeze-thaw cycle, de-icing chemicals, and heavy traffic in many places. The Michigan Department of Transportation is using pioneering technology to reinforce bridge components in an effort to strengthen and increase the lifespan of the state’s bridges.
State Transportation Director Paul C. Ajegba said, “The aim is bridges that last a century with minimal maintenance. This technology, developed here in Michigan, is becoming wildly popular all over the country.”
The new technology is carbon fiber reinforcements that have a tensile strength comparable to steel but are resistant to corrosion. The longer-lasting bridges require less maintenance and could save taxpayer dollars on life-cycle maintenance.
MDOT Chief Bridge Engineer Matt Chynoweth said, “Rusting of steel elements is the leading cause of deterioration in our bridges. Since carbon fiber is non-corrosive, we are eliminating that potential for damage. Using a material that will not corrode is a real game-changer.”
A carbon-fiber fabrication plant has been built in Michigan. Two new bridges on I-94 and one on I-75 in Detroit are part of the innovative technology.
Reporting for WGRT – Jennie McClelland
