The Missouri Department of Transportation has adjusted the schedule for shutting down a Mississippi River bridge for repairs.

MoDOT says the Champ Clark Bridge at Louisiana needs to replace hundreds of rusted rivets. The problem was found during an annual inspection of the two-lane, 87-year-old bridge, which the state wants to replace.

The Hannibal Courier-Post reports the bridge closures remain in effect from 6 a.m. to 6 p.m. from Oct. 19 through Oct. 21 and Oct. 26 through Oct. 28. The bridge will be shut down to traffic two hours later on Mondays and reopen two hours earlier on Thursdays.

But starting Nov. 2, crews will work from 7 a.m. to 5 p.m. Mondays to Fridays.

The changes were made after businesses, farmers and others raised concerns with MoDOT.