Cut Benchmark & 1GL Bolt St. Thomas's Church, Salisbury
N 51° 04.130 W 001° 47.816
30U E 584292 N 5658167
Cut benchmark and 1GL bolt on Buttress of the tower of St Thomas's Church. Mark is on south-west angle of tower.
Waymark Code: WM5XB6
Location: United Kingdom
Date Posted: 02/24/2009
Views: 16
This bench mark was used during the First primary levelling, England & Wales, and was levelled with a height of 158.9560 feet] above mean sea level (Liverpool datum). It was included on the Gloucester to London levelling line. The surveyor's description was "Bolt in buttress of S.W. corner of Tower of St. Thomas's Church, Sarum ; 3.24 ft. above surface".
On the Ordnance survey database the benchmark is 48.2224 metres above sea-level(Newlyn Datum). It was last verified in 1958 and was originally 1.2 metres above the surface.
Type of Trigpoint: 1GL Bolt or PA Bolt and cut benchmark
Condition: Good
Number on Flush Bracket: Not Applicable
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