Verwood Road between Verwood and Three Legged Cross will be closed around the clock from Monday 13th February to Friday 17th February 2023.
Work is taking place on the B3072 near Forest View and will be closed to all vehicles.
The roadworks will enable Dorset Council safe access to carry out drainage repairs.
A long locally signed diversion route using the B3081/B3078/B3072 via Horton will be put in place to enable traffic to travel around the closed section.
Verwood residents heading south can take the B3081 to Ringwood and A31 as an alternative route to Ferndown / Three Legged Cross / West Moors and beyond.