Ordnance Survey bench-mark on former railway bridge
Introduction
The photograph on this page of Ordnance Survey bench-mark on former railway bridge by Shantavira 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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Image: © Shantavira Taken: 16 Aug 2013
This bench mark was established in 1858 during the First primary levelling, England & Wales, and was levelled with a height of 282.7170 feet [86.1721 metres] above mean sea level (Liverpool datum). It was included as a side level on the Llandysilio to Stafford levelling line. The surveyor's description was No. 84(a). Church Aston Bridge, over railway. Mark on North battlement ; 1.41 ft. above surface (p587).