ST9906 : Bench Mark and sign, Witchampton

taken 7 years ago, near to Witchampton, Dorset, Great Britain

Bench Mark and sign, Witchampton
Bench Mark and sign, Witchampton
On the north parapet of the bridge over the River Allen is a bench mark, it is just below the sign. For a view of the bridge ST9906 : Bridge, Witchampton and for more information about the bench mark LinkExternal link
A bench mark is an Ordnance Survey arrowhead sign found on walls, bridges, churches and specially erected triangulation pillars where the altitude above sea-level has been accurately measured by surveyors. The arrowhead points to a horizontal line above it which marks the exact altitude.
With rivets and pivots there is no datum (horizontal line) cut, the pointed-to horizontal surface defining the datum height.
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ST9906, 26 images   (more nearby )
Photographer
  (find more nearby)
Date Taken
Tuesday, 8 June, 2010   (more nearby)
Submitted
Monday, 28 June, 2010
Category
Bench Mark   (more nearby)
Subject Location
OSGB36: geotagged! ST 9908 0617 [10m precision]
WGS84: 50:51.3026N 2:0.8663W
Camera Location
OSGB36: geotagged! ST 9908 0617
View Direction
North-northeast (about 22 degrees)
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