Flush Bracket G497: Thirlestane Burn Bridge   

E face of bridge, 5' S of centre of "Thirlestone Burn", W side of road - tentative identification of location, but seems to be the only bridge that could match the description. No BM shown on 1:10 000 map.

Location
Grid reference: NT 2476 1996.
Landranger 79: Hawick & Eskdale, Langholm.
Structure: Bridge.
Waypoint: FBG497.

Neighbouring Flush Brackets

G498	Oxcleuch Haugh 1.01km to the northwest.
G499	Chapelhope Burn Bridge 1.94km to the southwest.
G496	Deep Drain Bridge (B709) 3.21km to the east.
12082	Kirkstead Burn Bridge 4.42km to the northeast.
G500	Keercleuch Burn Bridge 4.92km to the southwest.

The nearest fundamental bench mark is Moffat, 21.57km to the southwest.

Second Geodetic Levelling, Scotland (1936-52)
This flush bracket was used during the Second geodetic levelling, Scotland, and was levelled with a height of 966.4360 feet [294.5697 metres] above mean sea level (Newlyn datum). It was included on the Hawick to Moffat levelling line. The surveyor's description was E face of bridge, 5' S of centre of "Thirlestone Burn", W side of road.

Logged Visits
Logged on 21st October 2008 by iainmac. Condition: Probably destroyed.
No parapets. no bridge; a culvert.

Logged on 28th January 2006 by ian. Condition: Couldn't find it.
I walked this track between G498 and G496 back in January following the line of BMs shown on the map, and looking for G497. I don't remember there being much of a bridge here for it to be hiding on. It's probably a gonner. Worth a second visit, of course, with the new information.