Drivers in Somerset face a diversion of up to 38 MILES - as a 0.2 mile stretch of road is closed for works.
Sherborne Road in Yeovil will have a whole new set of pipes installed underneath the surface.
The closure means heavy goods vehicles will be diverted through the village of Templecombe - 12 miles away - along the A303, down the A37 and along Lyde Road. This journey totals around 37.4 miles.
The increase in distance HGVs will travel compared to the original 0.2 mile stretch of road
Car drivers will also face a 7.5 mile diversion, through the B3148 towards Marston Magna - 6 miles away - down the A358 and along Lyde Road.
Somerset County Council say the repairs are vital and that whilst the closure is unavoidable the work will be done as soon as possible.
"We fully appreciate this will be disruptive, but we pledge to have teams working 24/7 until the work is completed."
The Council will also be updating road users on progress of the work via @TravelSomerset on Twitter and at www.travelsomerset.co.uk/sherborne-road.
Cllr Peter Gubbins, of South Somerset District Council, says the decision to work 24/7 on the road will reduce the overall project from three weeks to seven days.
This initial drainage upgrade will be followed by a full resurfacing at a later date, which is likely to be in the winter of 2018 with night-time working only.
Local businesses along Sherborne Road will remain open as usual and access will be maintained throughout.