A road closure in Chipperfield is set to cause motorists delays in May.

Tower Hill will shut between Dunny Lane and Flaunden Lane to allow preservation work to be carried out on the road.

The work will begin tomorrow and is expected to be finished by May 7.

The road will be closed between 9.30am and 4.30pm, but emergency services will have access at all times.

Authorities are warning delays are likely.