OS benchmark - Preston, railway bridge
Introduction
The photograph on this page of OS benchmark - Preston, railway bridge by Richard Law 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.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk
Image: © Richard Law Taken: 21 Jul 2020
An OS cutmark on the SE parapet of the railway bridge, last levelled in 1967 at 65.483m above Ordnance Datum Newlyn. It shows every sign of being a 1st Geodetic Levelling mark, partly due to the style and partly as it makes an appearance on the 1900 map, shown at 215.1ft above Liverpool datum.