OSBM Bolt   

OSBM Bolt on N end of W parapet of bridge, 11' N of stream, W side of road.

Location
Grid reference: TF 4777 8786.
Landranger 113: Grimsby, Louth & Market Rasen.
Landranger 122: Skegness & Horncastle.
Structure: Bridge.
Waypoint: OS0094.

Neighbouring Flush Brackets

G4694	The Hollies 1.04km to the south.
S0606	Theddlethorpe St Helen 1.67km to the north.
G4687	Mablethorpe, Primary School 3.84km to the southeast.
S0605	Saltfleetby, Prussian Queen PH 3.92km to the northwest.
S0607	Mablethorpe, Louth Hotel 3.98km to the southeast.

The nearest fundamental bench mark is Patrington, 38.24km to the northwest.

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 parapet of bridge, 11' N of stream, W side of road.