Some Hannibal drivers now need to find a new route to work.
The Missouri Department of Transportation will start sealing Route W Tuesday.
The construction will go from the Huck Finn Shopping Center's north entrance to U.S. 61.
Route W will be closed from Veterans Road to U.S. 61 north of the city.
Traffic will be reduce to one lane in some areas.
But all lanes will reopen to traffic at the end of the workday.
For information on detours click, here.