A road near Bradwell will be closed for water main renewal work.
Severn Trent will carry out the work from June 3 to July 15 on the B6049 in Brough from its junction with the A6187 Hope Road.
Traffic will be diverted to alternative routes which are the A6187, A6013, A57 (to Glossop), A624 (to Hayfield), A6015 (to New Mills), A6, A623 and B6049.
Access will be maintained whenever possible and the road will re-open as soon as the work is finished.
A Derbyshire County Council spokesman said: “We are sorry for any inconvenience caused while work takes place and anyone needing further information should ring Call Derbyshire on 08456 058 058.”