The Old Ruminator
Well-known member
Well not exactly in a cave and not exactly on Mendip but these are some of the longest straw formations in the UK. They are said to be up to 20 - 30ft long and are formed by water percolating through the lime mortar inside the vaulted West abutment of Bristol suspension bridge. Although long suspected as being hollow the vaults were not discovered until 2002 by a workman laying slabs on the abutment. Looking closely you will see that the West tower of the bridge is different in shape to the other one built on a solid base. This is because Brunel did not wish the tower corners to sit on top of the vault centres. The vaults lie on two levels within the abutment and the public tour takes one into two of the largest. You have to book online and usually there is a long waiting list.
For public access the abutment wall was drilled and a whole plug removed and stored to be replaced again if required.
The first vault showing original access hole in the roof.
The second vault on the tour accessible through a short tunnel.
Some of the stalagmites.
For public access the abutment wall was drilled and a whole plug removed and stored to be replaced again if required.
The first vault showing original access hole in the roof.
The second vault on the tour accessible through a short tunnel.
Some of the stalagmites.