Sir – We noticed the letter in this week’s Craven Herald about the bridge liability marker in Hebden.

Your correspondent may be interested to read more about it on our Out of Oblivion archaeology website at www. outofoblivion.org.uk.

The example shown is identical to the one at nearby Dibble’s Bridge.

An interesting survival from the 19th century is the numerous bridge liability markers that can be seen around the old West Riding County.

They lie each side of road bridges indicating where county highway responsibility for the bridge started and ended.

Beyond the marker, local highway districts were responsible for maintaining the road surface.

One type was a small stone marker carved with a cross.

Examples can be seen either side of Dibble’s Bridge east of Hebden.

Another type was made of cast iron with the initials ‘WR’ an example of which can be seen at the end of the south parapet of Grassington Bridge.

Karen Griffiths, Information Advisor, Grassington National Park Centre