Train services were back to normal in south London this morning after engineers worked flat out to fill a sinkhole which appeared under tracks on Monday.

The hole at Forest Hill caused travel chaos.

But teams from Network Rail and Thames Water have now fixed the problem by pouring wet concrete onto a dry concrete base before filling the void with 50 tonnes of ballast.

Thames Water’s team repaired a collapsed sewer under the hole after engineers located the problem section of pipe.

Carl Leadbetter, Thames Water’s regional network manager said: “This is an extremely complex job as the pipe is in a difficult location in the tracks and six metres below the ground.”

Via Construction Enquirer. Read the original article here.