Benchmark & 1GL Bolt - Holy Trinity - Blythburgh, Suffolk
Posted by: SMacB
N 52° 19.268 E 001° 35.666
31U E 404201 N 5797687
A cut benchmark & 1GL bolt on the south west corner of Holy Trinity church bell tower, Blythburgh. Unusually it is marked V.R. above the cut mark.
Waymark Code: WM10MG4
Location: Eastern England, United Kingdom
Date Posted: 05/28/2019
Views: 1
A cut benchmark & 1GL bolt on the south west corner of Holy Trinity church bell tower, Blythburgh. Unusually it is marked V.R. above the cut mark, presumably in reference to the Queen, Victoria.
Square |
Easting |
Northing |
Mark type |
Description |
Height |
Order |
Datum |
Verified year |
Metres above ground |
TM |
4504 |
7530 |
CUT MARK |
HOLY TRINITY CH TWR BUTT SW ANG |
9.885 |
3 |
'N' |
1968 |
0.900 |
"First Primary Levelling, England & Wales (1840-60)
This bench mark was used during the First primary levelling, England & Wales (Geodetic line, levelled between June 1848 and December 1851), and was levelled with a height of 34.0030 feet [10.3641 metres] above mean sea level (Liverpool datum). It was included as a side level on the London to Doncaster levelling line. The surveyor's description was No. 390(a). Blythburgh Church. Bolt in South angle of tower ; 3.62 ft above surface (p261)."
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