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Bishop Rock Lighthouse

General Information

Completion: 1887
Status: in use

Project Type

Function / usage: Lighthouse
Material: Load-bearing masonry tower

Location

Location: , , , ,
Coordinates: 49° 52' 22.43" N    6° 26' 44.72" W
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Technical Information

Dimensions

Initial construction
height 35 m
Heightening
height 47 m

Materials

shaft granite

Chronology

1847 — 1849

James Walker is not convinced about the adequacy of a granite structure and decides to erect a screw-pile lighthouse at a cost of £12,000. Cast iron legs are sunk into solid granite, braced and stayed with wrought iron rods. By the end of 1849 the actual structure is completed though the installation of the lighting apparatus is postponed until the next year.

5 February 1850

A strong gale sweeps away the entire structure. The reconstruction is then executed as a granite tower after all based on Smeaton's Eddystone Lighthouse. The foundations are built using a heavy coffer dam. For seven years workmen are stationed on a nearby uninhabited island to carry out the stone works. Total cost of construction is cost £34,560.

1 September 1858

The first light is exhibited.

1881

Sir James Douglass makes a detailed inspection of the tower and reports extensive damage and weakness in the structure. Subsequently the tower is strengthened and the height increased by 12 meters by practically building another structure around the existing one.

October 1887

Strengthening works are completed at a cost of £66,000.

1991

The lighthouse is converted to automatic operation.

21 December 1992

The last lighthouse keeper leaves.

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Participants

Design
Engineering

Relevant Web Sites

There currently are no relevant websites listed.

  • About this
    data sheet
  • Structure-ID
    20014297
  • Published on:
    07/11/2004
  • Last updated on:
    12/01/2019