Blunham gauging station
Introduction
The photograph on this page of Blunham gauging station by Ben Harris 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: © Ben Harris Taken: 18 Feb 2012
I suspect that this small plastic shed is where the actual gauging happens.