Investigations into the sinkhole which appeared on High Street Green in Adeyfield almost three months ago are due to be completed within the next couple of weeks.
A spokesperson for Hertfordshire County Council said: “Although the hole in the road surface (which appeared on 12 May this year) is quite small, the void underground extends to almost the width of the road.
“As a result, the road remains closed and the area around the hole is fenced off to protect residents and road users while specialist teams complete a series of investigations.
“Local residents are being kept up to date with the latest information as we have it; we expect the investigations to be completed within the next couple of weeks and to be able to give a further update shortly after that.
“In the meantime we are monitoring the situation and working closely with partners in the area including Thames Water, Affinity Water, Cadent Gas and Dacorum Borough Council.”