Mankato, MN – When the replacement of the Highway 25 bridge over the Minnesota River at Belle Plaine got off to a late start (October vs August) last year, it triggered the likelihood of even more delays due to challenges with high water, according to officials at the Minnesota Department of Transportation in Mankato.
Construction crews lost several weeks of work this spring and summer due to high water and are now struggling to establish a solid watertight seal on the riverbed in the cofferdam work area, which is necessary in order to construct a foundation for the final bridge pier.
MnDOT and the contractor have developed an assessment and recovery plan, which is currently being implemented. They will be able to announce a revised completion date once the pier, the last major substructure unit, is completed.
The Highway 25 bridge replacement had been on hold last season until the completion of the new river crossing at Blakely.
Traffic continues to be detoured to State Highways19 and 5 and U.S. Highway 169 for the duration of the construction.
Lunda Construction of Black River Falls, Wisconsin was awarded the replacement of the existing steel truss bridge with a three span steel bridge with a bid of $ 6,877,646.
The project includes raising the grade seven feet and building a bridge 130 feet longer than the existing bridge. The new bridge will have two 12-foot travel lanes, 10-foot shoulders and a 10-foot trail on the east side of the bridge. Entrances to the Minnesota Valley Trail and boat landing will also be reconstructed.
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