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U.K. and Ireland Trigpoints
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Description:
All survey marks or objects used by the UK Ordnance Survey, Ordnance Survey Northern Ireland (OSNI)
PLEASE NOTE, THERE IS A FACILITY TO SUGGEST CHANGES TO WAYMARKS, THE UK WAYMARKERS WOULD PREFER IF YOU EMAILED THEM DIRECT IF ANY CHANGES TO THEIR WAYMARKS ARE NEEDED. THANK YOU.

choose your Region from approved UK Region Map

Expanded Description:
All survey marks or objects used by the UK Ordnance Survey, Ordnance Survey Northern Ireland (OSNI) Ordnance Survey Ireland (OSI)& EA Environment Agency. Can include Cut bench marks, Rivets, Flush Brackets, Trig pillars in fact any point used and recorded by ordnance survey, OSNI or OSI. This category can include Triangulation Stations placed by the Admiralty Hydrographic Department that feature on various points around the UK coast. Can also include EABM (Environment Agency Bench Mark). Trigpoints are the common name for "triangulation pillars". These are concrete pillars, about 4' tall, which were used by the Ordnance Survey in order to determine the exact shape of the country. They are generally located on the highest bit of ground in the area, so that there is a direct line of sight from one to the next. By sitting a theodolite (an accurate compass built into a telescope) on the top of the pillar, accurate bearings to nearby trigpoints could be taken.
This category also includes any confirmed other Ordnance Survey marks such as cut bench marks, O/S tide markers, OS rivets, OS bolts, Fundamental bench marks, surface blocks, Berntsen's, blocks, passive and active GPS active stations and flush bracket's on constructions other than trig pillars. Many cut bench marks can be researched on www.old-maps.co.uk (1890's OS maps) which show their exact location and height. If you know of any other easily accessible resources please let group know.

EABM's are placed by the Environment Agency

Related and other useful sites.

www.trigpointinguk.com (OSGB36)

OS benchmarks (OSGB36)

Bench-marks.org.uk non trig pillar marks

Yahoo trig group Membership needed.

TrigTools.co.uk Co-ordinate conversion

MSN OSBM group (OSGB36)

www.nearby.org.uk (variety of datums) Co-ordinate conversions

OS map of Active Stations (OSGB36)

Waymarking.com uses WGS84 datum. Other sites use other datums.


Here are definitions of common OS marks.
OSBM BOLT "OSBM Bolt" is quite large - an inch or two in diameter (25 - 50mm) (sizes vary), with letters "O S B M" and an arrow engraved into the Bolt itself.(Some of the older ones have no markings.) Bolt
1GL BOLT or PA BOLT1GL BOLT or PA BOLT is a cut mark with a small bolt. The bolt can be next to the cut benchmark or in the apex. 1GL BOLT or PA BOLT
CUT BENCHMARK A cut mark in stone/brick. Some have been found upside-down. CUT BENCHMARK
RIVET WITH CUT BENCHMARK. A rivet is a small round headed bolt no more than half and inch (12mm) in diameter. They are situated ABOVE a cut benchmark. RIVET WITH CUT BENCHMARK
FUNDAMENTAL BENCHMARK. These are about a foot high (30 cm) with a large bolt on top, with a metal plaque. Worth noting also is that some standard FBMs have been cut down to ground level. Some of these have a new bolt on top, but not all. FUNDAMENTAL BENCHMARK
FLUSH BRACKET. These can be found on trig pillars, buildings, bridges etc. They all have an individual number, which you should log. FLUSH BRACKET
SURFACE BLOCK. A rivet set in a concrete base about 6 inches across (15cm) flush at ground level. SURFACE BLOCK
RIVET AND BENCHMARK (OLD STYLE) I have been told that it is the old style of rivet. It is like a headless nail which has been driven into the granite. The top of the stump protrudes out of the rock by about a quarter of an inch (6mm). The only place I have found one is on Dartmoor, where there are several. RIVET AND BENCHMARK (OLD STYLE)
PIVOT BENCH MARKS. A benchmark which has an empty hole above it. There is no horizontal mark. PIVOT BENCH MARKS
PROJECTING BRACKET. These brackets are the predecessor to the Flush Bracket. 258 listed on OSBM. PROJECTING BRACKET
BERNTSEN. Visible is a metal circular lid about 6 inches across (15cm) at ground level, covering a brass bolt. BERNSTEN
CURRY STOOL is a horizontal concrete tripod at ground level with arms about 3 feet (1m) long & a centre stud. 9 known in the UK. CURRY STOOL
BLOCKS. These are similar to a surface block, often replacing (and made from the remains of) a destroyed trig pillar. 17 known in the UK.
WM8CME is one
BLOCKS
ACTIVE STATIONS contain a GPS receiver antenna and sometimes meteorological instruments. Active Station Map. (Not publicly listed by OS.) Find an Active Station. Active
CONCRETE RING with a centre stud. 2 feet (55cm) diameter. 6 known in the UK. CONCRETE RING
(The pictures below have been borrowed from T:UK which will be replaced with our own waymarking photos when the objects have been submitted. If you are submitting any of the objects please could you let a manager know.)
FENOMARK. 10 of these are known in the UK. FENOMARK
CENTRE is a small cross engraved in metal. There are 2 known in the UK. CENTRE
GRAVITY FBM. Similar to a standard FBM, but bigger, and with a flush bracket. 4 known in the UK. GRAVITY FBM
BURIED BLOCKS 5 known. Like Surface Blocks but roughly one to two feet underground. (No photos in Waymark database yet.)
SPIDER. There are 6 left in the UK. They are similar to the spider on top of standard trig pillar, but placed elsewhere. e.g. in a wall (No photos in Waymark database yet.)
There are ANOMILIES. A raised block without Flush Bracket but with OSBM bolt under a trap door. Irish Pillar
Other survey marks.
ADMIRALTY HYDROGRAPHIC DEPARTMENT LEVEL MARKER. These markers are flat and about 6 inches across (15cm) , set in rock. ADMIRALTY HYDROGRAPHIC DEPARTMENT LEVEL MARKER
EABM (Environment Agency Bench Mark)EABM (Environment Agency Bench Mark)EABM (Environment Agency Bench Mark)

Instructions for Posting a U.K. and Ireland Trigpoints Waymark:
This category requires a CLOSE-UP photo of the OS object and a photo of the object with the general area taken by the waymarker.

When a trig is waymarked 2 photos are required, the trig and one of the flush bracket.

Most waymarkers submit two photos one close up of the object and one a little further away. The object must be recognizable in the photos.

Please ensure you complete both the short and long descriptions including street names if appropriate, nearest hamlet, village or town and County. (If these are not completed then your submission will be rejected.) Postcode is a bonus.

Ensure all Flush Bracket numbers are entered in the appropriate field.

Instructions for Visiting a Waymark in this Category:
A photo should be taken when you visit, and added to the log.
Category Settings:
  • Waymarks can be added to this category
  • New waymarks of this category are reviewed by the category group prior to being published
  • Category is visible in the directory
Variables:
  • Type of Trigpoint
  • Condition
  • Number on Flush Bracket
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Currently displaying U.K. and Ireland Trigpoints

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Total Records: 6265 Page: 1 of 251 prev<<<[12345678910]>>>next
Image for Cut Bench Mark - Broadway, Bexleyheath, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Broadway, Bexleyheath, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the stonework of Christ Church on the north east side of Broadway in Bexleyheath. The mark is at the south west corner of the church on its southern face.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/30/2015

last visited: never

Image for Cut Bench Mark - Crayford High Street, Crayford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Crayford High Street, Crayford, Kent, UK

in U.K. and Ireland Trigpoints

The mark is cut into the brickwork of the Duke's Head public house on the south west side of Crayford High Street. The mark is at the north corner of the building on the north west face.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/23/2015

last visited: never

Image for Flush Bracket - St Paulinus Church, Manor Road, Crayford, Kent, UKview gallery
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U.K. and Ireland TrigpointsFlush Bracket - St Paulinus Church, Manor Road, Crayford, Kent, UK

in U.K. and Ireland Trigpoints

This flush bracket is attached to the north west buttress of the tower of St Paulinus church. The church and churchyard lie between Manor Road and Perry Street in Crayford.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/23/2015

last visited: never

Image for Cut Bench Mark - Plumstead High Street, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Plumstead High Street, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a bridge parapet that crosses railway tracks. It is on the north east side of Plumstead High Street opposite Plumstead railway station.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/23/2015

last visited: never

Image for Cut Bench Mark - Perry Street, Crayford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Perry Street, Crayford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into a brickwork gatepost on the west side of Perry Street. The gatepost is on the south side of the entrance into the Russell Stoneham Memorial Gardens.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/23/2015

last visited: never

Image for Cut Bench Mark - Crayford Road, Crayford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Crayford Road, Crayford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a wall at the junction of Crayford Road and London Road in the centre of Crayford. The mark is to the left side of a bridge that crosses the River Cray.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/22/2015

last visited: never

Image for Cut Bench Mark - Crayford Way, Crayford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Crayford Way, Crayford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into the parapet of a bridge that crosses the River Cray in Crayford town centre. The mark is on the west side of the bridge at its northern end.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/22/2015

last visited: never

Image for Cut Bench Mark and Bolt - West Hill, Dartford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark and Bolt - West Hill, Dartford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into a brick wall on the north east side of West Hill.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/21/2015

last visited: never

Image for Cut Bench Mark - Dartford Road, Dartford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Dartford Road, Dartford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a brick and stone wall at the junction of Dartford Road and Shpherd's Lane.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/21/2015

last visited: never

Image for Flush Bracket - Shepherd's Lane, Dartford, Kent, UKview gallery
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U.K. and Ireland TrigpointsFlush Bracket - Shepherd's Lane, Dartford, Kent, UK

in U.K. and Ireland Trigpoints

The bracket is attached to a building, in private grounds, at the junction of Shepherd's Lane and Dartford Road. The bracket is on the Shepherd's Lane (south east) face at the north east corner of the building.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/21/2015

last visited: never

Image for Cut Bench Mark - Dartford Road, Dartford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Dartford Road, Dartford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into a brickwork gatepost on the north easts side of Dartford Road close to the junction with Lawrence Hill Road.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/21/2015

last visited: never

Image for Cut Bench Mark - Pelham Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Pelham Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into a brick garden wall on the north west side of Pelham Road at the junction with Palmerston Road.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/17/2015

last visited: never

Image for Benchmark, St Mary - Coney Weston, Suffolkview gallery
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U.K. and Ireland TrigpointsBenchmark, St Mary - Coney Weston, Suffolk

in U.K. and Ireland Trigpoints

Cut benchmark on south east corner of St Mary's church, Coney Weston.

posted by: Groundspeak Premium Member SMacB

location: Eastern England, United Kingdom

date approved: 7/17/2015

last visited: never

Image for Richmond Park Triangulation Pillarview gallery
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U.K. and Ireland TrigpointsRichmond Park Triangulation Pillar

in U.K. and Ireland Trigpoints

Triangulation pillar in Richmond Park, Richmond-upon-Thames, London, UK

posted by: Groundspeak Premium Member GCEdo

location: London, United Kingdom

date approved: 7/17/2015

last visited: never

Image for Cut Bench Mark - Christchurch Road, Collier's Wood, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Christchurch Road, Collier's Wood, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a buttress of the tower of Christ Church church in Collier's Wood. The mark is at the north west corner of the chhurch that lies on the east side of Chrictchurch Road.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/16/2015

last visited: never

Image for Cut Bench Mark - Christchurch Road, Collier's Wood, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Christchurch Road, Collier's Wood, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the stone section of a brick and stone post supporting a wall and railings on the east side of Christchurch Road in Collier's Wood.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/16/2015

last visited: never

Image for Flush Bracket - South Gardens, Collier's Wood, London, UKview gallery
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U.K. and Ireland TrigpointsFlush Bracket - South Gardens, Collier's Wood, London, UK

in U.K. and Ireland Trigpoints

This flush bracket is attached to Singlegate Primary School that is situated on the south side of South Gardens in Collier's Wood. The bracket is located on the north face of the school at its north west corner.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/16/2015

last visited: never

Image for Cut Bench Mark - Lowfield Street, Dartford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Lowfield Street, Dartford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building at the junction of Lowfield Street and Heath Street with the mark being on the Lowfield Street face of the building.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/16/2015

last visited: never

Image for Cut Bench Mark - Lowfield Street, Dartford, Kent, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Lowfield Street, Dartford, Kent, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building on the north west side of Lowfield Street in Dartford.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/16/2015

last visited: never

Image for Flush Bracket - High Street, Dartford, Kent, UKview gallery
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U.K. and Ireland TrigpointsFlush Bracket - High Street, Dartford, Kent, UK

in U.K. and Ireland Trigpoints

This flush bracket is attached to a building on the south west side of Dartford High Street.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/16/2015

last visited: never

Image for Cut Bench Mark - Kingston Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Kingston Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building on the south east side of Kingston Road. The mark is at the north west corner of the building on its north west face.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/15/2015

last visited: never

Image for Cut Bench Mark - Kingston Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Kingston Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickworl of Merton Lodge on the south side of Kingston Road. The mark is at the north east corner of the building on the east face.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/15/2015

last visited: never

Image for Cut Bench Mark - Station Road, Merton, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Station Road, Merton, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a bridge parapet on the north side of Station Road. The mark is at the west end of the parapet of the bridge that crosses the River Wandle.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/15/2015

last visited: never

Image for Steep Down Triangulation Pillarview gallery
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U.K. and Ireland TrigpointsSteep Down Triangulation Pillar

in U.K. and Ireland Trigpoints

A pillar on the summit of Steep Down, just to the north of Sompting and Lancing, West Sussex.

posted by: Groundspeak Premium Member Happy Humphrey

location: Southern England, United Kingdom

date approved: 7/13/2015

last visited: never

Image for Cut Bench Mark - Elmfield Road, Bromley, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Elmfield Road, Bromley, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of Bromley South railway station on the south side of Elmfield Road. The mark is at the north west corner of the station on the building's north face.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/9/2015

last visited: never

Total Records: 6265 Page: 1 of 251 prev<<<[12345678910]>>>next
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