TL4458 : Benchmark, School of Divinity

taken 5 months ago, near to Cambridge, Cambridgeshire, Great Britain

Benchmark, School of Divinity
Benchmark, School of Divinity
The term benchmark, originates from the chiselled horizontal marks that surveyors made in stone structures, into which an angle-iron could be placed to form a "bench" for a levelling rod, thus ensuring that a levelling rod could be accurately repositioned in the same place in future. These marks were usually indicated with a chiselled arrow below the horizontal line.
The height of a benchmark is calculated relative to the heights of nearby benchmarks in a network extending from a fundamental benchmark, a point with a precisely known relationship to the level datum of the area, typically mean sea level. The position and height of each benchmark is shown on large-scale maps.


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TL4458, 4155 images   (more nearby )
Photographer
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Date Taken
Sunday, 11 June, 2017   (more nearby)
Submitted
Monday, 13 November, 2017
Geographical Context
Communications 
Subject Location
OSGB36: geotagged! TL 4483 5874 [10m precision]
WGS84: 52:12.4714N 0:7.0884E
Camera Location
OSGB36: geotagged! TL 4483 5874
View Direction
East-southeast (about 112 degrees)
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Image Type (about): close look 
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