Motorists are facing continued disruption as council engineers work to reopen two major routes in and out of the city - but the Bristol to Bath cycle path has reopened.
Kelston Road was shut on Monday lunchtime because of continued subsidence which had de-stablised the route and made it a risk to public safety.
It came after the cycle path along the River Avon was closed over the weekend because of flooding and the month-long closure of Midford Road due to a landslip is expected to continue as planned.
A Bath and North East Somerset Council spokesman said they were doing everything they could to solve the problems on the A431 Kelston Road, which had been caused by water running off neighbouring fields and underneath the road surface, washing the foundations away.
He said: "The council is sparing no effort to understand the problem underneath the carriageway deep underground. Without understanding the nature of the problem, we are not in a position to resolve it in the long-term.
"We've deployed the latest state-of-the-art equipment including CCTV, ground radar technology, expert geo-technicians and a drilling rig to gather intelligence about the geological characteristics underneath Kelston Road."
He said the local authority would not be in a position to even consider reopening the road until after the weekend at the earliest.
Three variable messaging signs have been placed at the Upper Bristol Road junction with Locksbrook Road, at Bitton on the A431 junction with the A4175 and at the Willsbridge roundabout.
Motorists are being advised to avoid the area and find alternative routes between Bath and Bristol.
Meanwhile, B&NES has now reopened a 200m section of the Bristol to Bath cycle path, after flood water was pumped away.
An inspection took place yesterday afternoon and a decision was made that it was safe to reopen.
The council took the decision to close it over the weekend after cyclists, many of whom believe pumping should have started earlier, complained that it had become unsafe because of the amount of water.
On the other side of the city people travelling into Bath from the south are continuing to face problems with the closure of Midford Road.
This is expected to continue until the middle of March, as engineers work to stabilise the bank alongside the road, which slipped away at the end of January.
The overnight closure of Brassknocker Hill due to resurfacing work is due to end on Friday.
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