The A6020 has been closed near Ashford in the Water due to a burst water sewer causing damage to the road outside the entrance to Thornbridge Hall.
The road is closed between the A6 at Ashford in the Water and the B6001 Hassop Road at Hassop.
Traffic is being diverted along the A6 to Bakewell and onto the A619 and vice versa. Access to Great Longstone is being maintained.
Derbyshire County Council is working to identify the problem with Severn Trent Water.