Southwark Council says Stoney Street should reopen on Friday morning after council officers and contractors have spent two days investigating the sudden appearance of a large hole in the road surface.
Although the crater was initially blamed on a collapsed sewer, council officers now believe that a combination of subsidence and pest damage could have caused the hole to appear.
Thames Water carried out a camera survey of their sewers on Wednesday night which found their main system under the road be intact.
Contractors have now laid a combination of type 1 cement and concrete in the hole.
"This will need time to cure," explained a council spokesman.
"We will be tarmacing the road at 8am tomorrow [Friday] morning, followed by reinstallation of the road markings, and the road should be open by 11am.
"We have signs out advising the public that the concrete is curing."