OSBM Bolt: River Thames Transfer Bolt A   

Transfer Bolt A on sea wall, 6' S & 21' E of wall, N side of River Thames [3GL].

Location
Grid reference: TQ 6478 7521.
Landranger 177: East London, Billericay & Gravesend.
Structure: Other.
Waypoint: OS0109.

Neighbouring Flush Brackets

S0882	Tilbury, Worlds End PH, Tide Gauge Aux 2 50.99m to the north.
S0881	Tilbury Laundry 581.38m to the northwest.
G5140	Tilbury, Dock Road 959.01m to the northwest.
S0654	Gravesend, Methodist Church 1.13km to the south.
G2433	Tilbury, Railway Bridge 1.24km to the northeast.

The nearest fundamental bench mark is Snodland, 12.96km to the south.

Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Hatfield Peverel to Snodland levelling line. The surveyor's description was Transfer Bolt A on sea wall, 6' S & 21' E of wall, N side of River Thames.