Two sections of road in Holbeach Fen and Wyberton Fen will be closed for engineering works next month.
Frostley Gate, at its junction with the B1165 Raven’s Bank, will be shut from June 20 to 27 for maintenance works by BT.
Diversions will be in place along Strongs Gate and Ravens Gate onto the B1165.
Before that, West End Road, Wyberton Fen, near its junction with Chain Bridge Road, will be closed from June 6 to 10 for essential maintenance works by Western Power.
Motorists will be diverted along the A52 Swineshead Road, Fen Road, B1391 Ralphs Lane, B1397 London Road and West End Road.