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Flush Bracket OSBM 25: Clifton Hampden, Clifton Lock   

Flush Bracket on Flood Mark Stone, Clifton Lock [2GL]; Flood Mark Stone, E side, S end of Clifton Lock.

Grid reference: SU 5469 9468.
Landranger 164: Oxford, Chipping Norton & Bicester.
Landranger 174: Newbury & Wantage, Hungerford & Didcot.
Explorer 170: Abingdon, Wantage & Vale of White Horse.
Structure: Other.
Waypoint: FB25.

Neighbouring Flush Brackets
24 Clifton Hampden Bridge 710.28m to the north.
G3642 Long Wittenham, The Vine 822.98m to the south.
G3643 Culham, Railway Hotel 1.88km to the west.
26 Appleford Railway Bridge 2.06km to the west.
G3641 Rosehurst Farm 2.08km to the south.
The nearest fundamental bench mark is Wallingford, 10.15km to the southeast.

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 159.0200 feet [48.4693 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 Flood Mark Stone, Clifton Lock.

Logged Visits
Visited on 19th January 2015 by RogerTempleman. Condition: Repositioned on site.
The bracket has less cement splash on it now compared with John Talbot's photograph and the block in which it is mounted appears to have been resited with less lean. Odd place for a FB though with suitable buildings nearby! Photo showing the bracket at with wider view at

Visited on 17th October 2006 by Calico. Condition: Good.
No change. Flood Mark Stone leaning a little. How accurate is fb now?

Visited on 24th June 2006 by dal. Condition: Good.

Visited on 18th March 2006 by lackofluke. Grid reference: SU 54694 94692. Condition: Good.
Looks vaguely trig-esque. Flood mark stone also appeared to have something similar to a cut BM on the side facing the river.

Visited on 16th November 2004 by iainmac. Grid reference: SU 546 946. Condition: Good.
Flood mark stone

Visited on 31st August 2004 by jochta. Condition: Good.
The lock keeper kindly allowed me to cross to get a photo of the FB. The pillar appears not to be attached to the ground and has a distinct lean. It may have shifted form it's original position.

Visited on 20th August 2004 by RHW. Grid reference: SU 547 946. Condition: Good.
Clifton Hampden: Flood Mark Stone at Clifton Lock. E side of canal, S end of lock.
If you have any corrections or additions to this record, please let us know.