A diversion will be in operation from Bondleigh Bridge to North Tawton, via Essington Road and Farley?s Grave Cross and vice versa.
A small section of road between Bridge Cottages and Kempley, on the road to North Tawton will also be closed for around five days next month.
The road will be closed to through traffic for five days from Monday, May 12, for work to a burst water pipe.
A diversion will be in operation from Bondleigh Bridge to Cadditon Cross, Culm Cross, Taw Bridge Cross and onto North Tawton.
The road from Bogtown Cross to Ashbury Farm Lane near Northlew will be closed for approximately five days from April 28 for South West Water mains rehabilitation works.
An alternative route will be in operation from Bogtown Cross to Kneelbridge Cross via Northlew and Durden Cross and vice versa.