Wise Road over Flat River

Project Details

For years, LSE has been performing Routine Bridge Inspections for the Road Commission for Montcalm County, including the Wise Road bridge over the Flat River, just west of M-91 in Greenville. The structure was a 4-span bridge with a nail-laminated timber deck on timber pile bents and abutments, built in 1978. As the bridge aged, the timber deteriorated. As the timber degraded, Load Rating Analysis proved the structural capacity was reducing, down to just 20 tons at it’s lowest. Not only was the bridge deteriorating, the roadway alignment proved unsafe as several car crashes occurred damaging the bridge railing. On behalf of the Road Commission for Montcalm County, LSE sought funding sources to eliminate this safety hazard, including Local Bridge Funds, Safety Funds, Small Urban Funds. These funding sources provided not only a new bridge, but also pavement improvements from Youngman Road to M-91, a total of 1.48 miles. 

The design of this project included many different aspects: bridge design, hydraulic analysis of the Flat River, meeting the many environmental requirements, design of several segments of different road sections, curve layout and associated superelevations, sign and pavement marking updates, driveway relocation and associated permits, maintenance of detoured traffic, development of special provisions for non-standard items.

LSE was also selected to perform construction services. Construction Engineering, Inspection, and Testing services were required to ensure MDOT standards were met. The team worked closely with the contractors to create the final product.


Road Commission for Montcalm County




Wise Road over Flat River