The Missouri Department of Transportation ( MoDOT) will close westbound I-64 (Route 40/61) at the Missouri River (Daniel Boone Bridge) Sunday from 7 a.m. to 10 p.m. for a routine inspection.
Crews will close westbound I-64 (Route 40/61) at Long Road in Chesterfield, and all access to St. Charles County from Route 40/61, starting at 7 a.m. Sunday, September 25.
The roadway will reopen by 10 p.m. that night.
Drivers will still be able to get to St. Charles County using I-70, Route 364, and Route 370 will remain open.
The detour for the closure is taking I-270 to I-70 or using Route 364 to Route 94. For people returning to St. Louis, however, eastbound Route 40/61 over the river will remain open.
The inspection is needed to ensure that the 1930s-era Boone Bridge remains safe for the 75,000 vehicles which use it daily.