OSBM Bolt   

OSBM Bolt on N end of W bridge parapet [3GL]; OSBM BOLT BR PARA W SIDE HUTTOFT RD N END.

Location
Grid reference: TF 5191 7933.
Landranger 122: Skegness & Horncastle.
Structure: Bridge.
Waypoint: OS0092.

Neighbouring Flush Brackets

G4685	Sandilands, Gatehouse 1.29km to the north.
G4684	Huttoft, The Grange 1.49km to the south.
S0610	Sutton on Sea 2.85km to the north.
G4683	Huttoft, School 3.03km to the south.
G4686	Trusthorpe, Radio Station 4.39km to the north.

The nearest fundamental bench mark is Thornham, 42.35km to the southeast.

Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Boston to Immingham levelling line. The surveyor's description was OSBM Bolt on N end of W bridge parapet.