Damaged bench mark on Stone Bridge, Saltney
Introduction
The photograph on this page of Damaged bench mark on Stone Bridge, Saltney by John S Turner as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
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Damaged bench mark on Stone Bridge, Saltney
Image: © John S Turner Taken: 27 Aug 2009
Granted, this perfectly round drilled hole doesn't look much like a bench mark, but its location in the centre of the north parapet of Stone Bridge just where a 1GL cut mark and bolt should be, is persuasive. Also I measured the centre of the hole as 14.5inches from the top of the parapet compared to the 1.21 feet recorded on the surveyor's schedule, which is 14.52inches. Clearly also the soft sandstone parapet has suffered, and is continuing to suffer, significant weathering and delamination, so I am convinced that this is all that is left of the early First Geodetic Levelling bench mark No79 on the Warrington to Pembroke Docks line. For a photo of the whole bridge parapet and the later bench mark at the end of the bridge see Image
Images are licensed for reuse under creativecommons.org/licenses/by-sa/2.0
Image Location
Latitude
53.177359
Longitude
-2.933735