Ordnance Survey PA Bolt Benchmark - Peterborough, The Sessions House
Introduction
The photograph on this page of Ordnance Survey PA Bolt Benchmark - Peterborough, The Sessions House by N Scott as part of the Geograph project.
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Ordnance Survey PA Bolt Benchmark - Peterborough, The Sessions House
Image: © N Scott Taken: 8 Apr 2025
Ordnance Survey Benchmark (OSBM) used for levelling height above Ordnance Datum (OD). Height: 11.5611m OD (Newlyn). Mark verified by the Ordnance Survey in 1965. Description: NBM W SIDE ENT THE SESSIONS HOUSE N SIDE THORPE RD. 0.3m above ground. 3rd Order BM. TL 1837 9866 The bolt was included as a branch level from mark 139 on the Towcester to King's Lynn line of the First Primary Levelling of England & Wales in 1852. It was levelled with a height of 38.747’ above OD (Liverpool). Description: Peterborough New Gaol. Bolt in West side of door at main entrance ; 1.11 ft. above surface. Page 314 of the abstract: https://www.bench-marks.org.uk/abstract/ew1gl/1GLA_314.png Context: Image
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Image Location
Latitude
52.572889
Longitude
-0.25479