Unknown: Atlantic

Obstruction (possible)

Site Name Unknown: Atlantic

Classification Obstruction (possible)

Alternative Name(s) Sumburgh Head; Fair Isle; Dunrossness; Obstruction

Canmore ID 102939

Site Number HZ39SW 8001

NGR HZ 31039 91313

NGR Description HZ c. 310 913

Datum WGS84 - Lat/Long

Ordnance Survey licence number 100020548. All rights reserved.
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Administrative Areas

  • Council Shetland Islands
  • Parish Maritime - Shetland Islands
  • Former Region Shetland Islands Area
  • Former District Maritime
  • Former County Not Applicable

Archaeology Notes

HZ39SW 8001 c. 310 913

N59 42.4 W1 26.9

NLO: Sumburgh Head [name: HU 407 078]

Fair Isle [name centred HZ 21 72].

Formerly entered in error as HZ19SW 8001 at cited location HZ 1078 9119 [N59 42.4 W12].

Quality of fix = PA

Horizontal Datum = OGB

Buoyage =

General water depth = 80

Surveying Details

-----------------------------

16 May 1984. An uncharted obstruction was reported in a position bearing 211 degrees, 10.4 miles from Sumburgh head. The obstruction was found when towing the oil rig DYVI OMEGA on 23 March 1984, when the obstruction was fouled and the tow-wire parted.

Report by MV TENDER TRACER, 23 March 1984.

Note: The catenary of the tow was 35 to 40 metres.

22 January 1985. An area of 30 square miles was searched, using echosounder and side scan sonar, with no indication of this reported obstruction.

Report by Naval Party.

Hydrographic Office, 1995.

The obstruction was inserted in 59 42.4N, 01 26.9W [OSGB 1936] by NM 1450/84.

Information from Lieutenant Commander N McEachan, Royal Navy (Wrecks Section, UKHO), 25 November 2009.

(Re-entered as HZ39SW 8001 at cited location HZ c. 310 913). This location falls about 19km SSW of Sumburgh Head and the same distance NNE of Fair Isle.

Information from RCAHMS (RJCM), 25 November 2009.

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