Portions of Route D in Audrain County will be closed for culvert replacement operations starting Aug. 21 from Route HH to County Road 975.
Work will take place between 8 a.m. and 4p.m.
Additional stretches of Route D in the area will close for similar work that is expected to wrap up on Aug. 23.
Culvert replacement operations will also close Route FF in Audrain County on Aug. 24 from Route ZZ to Cline Road in Boone County between 8 a.m. and 4p.m.