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Flush Bracket OSBM 995: Denham, Railway Bridge   

Flush Bracket on railway arch, under GC&GW Joint Railway [2GL] - FB reported as obstructed 1947.

Location
Grid reference: TQ 0397 8775.
Landranger 176: West London, Rickmansworth & Staines.
Explorer 172: Chiltern Hills East.
Structure: Bridge.
Waypoint: FB995.

Neighbouring Flush Brackets
996 River Misbourne Bridge 709.37m to the south.
994 Denham, Lodge 818.84m to the north.
997 Denham 1.24km to the south.
993 Weybeards Cottages 2.14km to the north.
998 Rusholt House 2.19km to the south.
The nearest fundamental bench mark is Windsor Castle, 12.68km to the southwest.

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 146.8970 feet [44.7742 metres] above mean sea level (Newlyn datum). It was included on the Hemel Hempstead to Windsor Castle levelling line. The surveyor's description was Flush Bracket on railway arch, under GC&GW Joint Railway.

Logged Visits
Visited on 1st October 2008 by AndyG. Condition: Couldn't find it.
1934 Middlesex 1:10560 shows two BMs on this bridge.
On the north side one at 147.66ft which corresponds to the cancelled mark (now 2-3 bricks up above the pavement).
On the south side one at 146.90ft which corresponds to the FB.
This would probably put it below present pavement level?
As the description was 'obstructed' is it still there but buried?

Visited on 26th October 2005 by mystic189. Condition: Probably destroyed.
Aug 05. Found only a cancelled cut bench mark
If you have any corrections or additions to this record, please let us know.
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