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Flush Bracket OSBM 21: Benson Lock   

Flush Bracket on cottage, Benson Lock [2GL] - FB returned by Thames Conservancy to OS, presumably in 1913 when lock cottage rebuilt; FB then reused on 2GL Hemel Hempstead to Windsor Castle line.

Location
Grid reference: SU 6132 9126.
Landranger 164: Oxford, Chipping Norton & Bicester.
Landranger 175: Reading & Windsor, Henley-on-Thames & Bracknell.
Explorer 170: Abingdon, Wantage & Vale of White Horse.
Explorer 171: Chiltern Hills West.
Structure: Private house.
Waypoint: FB21.

Neighbouring Flush Brackets
G3636 Crowmarsh Battle Farm 751.80m to the southeast.
G3635 Benson, Crown Square 898.23m to the northeast.
11 Wallingford Bridge 1.84km to the south.
22 Shillingford Bridge 1.85km to the northwest.
G3637 Crowmarsh Gifford, 7 Benson Lane 2.00km to the south.
The nearest fundamental bench mark is Wallingford, 3.29km to the south.

Second Geodetic Levelling, England & Wales (1912-21)
This flush bracket was used during the Second geodetic levelling, England & Wales, and was levelled with a height of 150.2700 feet [45.8023 metres] above mean sea level (Newlyn datum). It was included on the Wallingford to Buckland levelling line. The surveyor's description was Flush Bracket on cottage, Benson Lock.

Logged Visits
Visited on 15th July 2006 by dal. Condition: Probably destroyed.

Visited on 15th June 2006 by RHW. Grid reference: SU 6132 9126. Condition: Unknown.
No access from E; longish walk along W bank needed?

Visited on 3rd June 2006 by lackofluke. Condition: Probably destroyed.
The lock-keepers cottage is dated 1913. Since the line was levelled in May-June 1912, I suspect that this FB has gone. However, I didn't visit the site to be absolutely sure.
If you have any corrections or additions to this record, please let us know.
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