The mine has been disused for 100 years
Underground at Combe Down
A massive project has been taking place underneath Combe Down in Bath... the old limestone mines were being filled with bubbly concrete to keep them from caving in. Our reporter Ian Parker took a trip down the shaft to see what was going on.
Miles of mine tunnels run beneath the city of Bath - just a few metres below the surface.
But in recent years houses and gardens in the area have begun subsiding into them, causing problems for homeowners.
A £154m project to shore-up the tunnels began in 2005 - they are being filled with aerated concrete, except in areas of archeological interest, which are being propped up with girders.
In total 491,000 square metres of concrete will be poured into the mines' 14 kilometres of tunnels.
The city of Bath was built from limestone mined at Combe Down, but the mines were abandoned more than 100 years ago.
Bats are being encouraged to part of the mines - and the community includes rare greater and lesser horseshoe and Bechstein’s bats.
last updated: 11/03/2008 at 14:25