MARFQUETTE — As the 2025 construction season moves into its final stages, officials with the Michigan Department of Transportation are looking ahead to the end of service lives for critical roads and bridges. MDOT is highlighting this need in a video news release about the M-69 bridge over the Michigamme River in the Upper Peninsula, ahead of important discussions among policymakers, as the future of road and bridge funding hangs in the balance.

About two-thirds of MDOT’s bridge inventory has far exceeded their original design lives. MDOT now faces the possibility of more than 100 trunkline bridges closing to traffic by the year 2035, impacting approximately 1.8 million drivers daily if a comprehensive transportation funding package isn’t secured. While maintaining quality roads is a priority for MDOT, bridge conditions, especially, must meet a minimum rating to remain safe and open to the public.

The M-69 bridge over the Michigamme River in Iron County is an example of the state’s aging bridge epidemic. This bridge, built in 1931, has a deck, beams and substructure all rated in poor condition. The bridge is a critical link for residents, tourism and the logging industry in the central U.P.

“When you go hunting, when you go fishing, when you’re going to work, when you’re going to the grocery store, wherever you’re going, they use this bridge. That’s how critical it is,” said Denny Olson, a longtime timber hauler and nearby Breitung Township supervisor. “Then, when you put how important it is to manage timber and with the trucking… wow.”

In the U.P.’s 15 counties, 22 MDOT bridges are currently listed in poor condition with six at risk of closure by 2035, potentially affecting nearly 28,000 road users and the corridors they rely on daily. On average, bridge replacement projects can take two years, once closed to the public. While bridge replacements are expensive initially, they are considered a long-term asset and are now designed with an 80 to 100-year service life.

“At this rate, by decade’s end, nearly 50 percent of state routes, which carry 53 percent of total traffic and 80 percent of commercial traffic, will be in poor condition,” said MDOT Director Bradley C. Wieferich. “Without additional investment, those projections will get worse.”

“If there is no long-term solution to Michigan’s road-funding crisis, considerable progress in recent years will be stalled, meaning contractors will employ fewer workers and road conditions will decline,” said Susan Corbin, director of the Michigan Department of Labor and Economic Opportunity. “The effects would spread across industries and communities, causing job losses, shrinking economic activity and creating long-term challenges for Michigan’s workers and families.”