Route M in Cooper County closed Wednesday as work started to replace the rural bridge over the Lamine River south of Blackwater.
The road will close for up to four months during construction. Motorists are asked to find alternate routes.
Work is weather permitting and could be delayed.
The Harriman Hill Access Conservation Area and its boat ramps will be open to traffic.
For more information, call Missouri Department of Transportation customer service at 1-888-275-6636 or visit the MoDOT Central District website. Updates also are posted to the district’s Facebook and Twitter accounts.