OSBM Bolt: Ladybower Viaduct   

OSBM Bolt on concrete platform 5' SE from production of SW angle of viaduct, Ladybower [3GL]; OSBM Bolt, concrete platform, 1.5m SE of production of SW angle of viaduct.

Location
Grid reference: SK 2020 8635.
Landranger 110: Sheffield & Huddersfield, Glossop & Holmfirth.
Structure: Concrete block.
Waypoint: OS0034.

Neighbouring Flush Brackets

639	Ladybower Inn 313.85m to the northeast.
638	Yorkshire Bridge Inn 1.20km to the south.
640	Cutthroat Bridge 1.57km to the northeast.
G2300	Moscar 2.75km to the northeast.
637	Bamford, Methodist Chapel 2.77km to the south.

The nearest fundamental bench mark is Broomhead Moor, 9.36km to the northeast.

Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Broomhead Moor to Matlock levelling line. The surveyor's description was OSBM Bolt on concrete platform 5' SE from production of SW angle of viaduct, Ladybower.

Logged Visits
Logged on 25th October 2008 by LesC. Condition: Couldn't find it.
No sign of the usual large OSBM bolt, but there is what looks like a rivet in about the correct location, but without an accompanying arrow. Are there different sizes of OSBM bolt?