Lake Vyrnwy Straining Tower

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Lake Vyrnwy Straining Tower and approach bridge
Lake Vyrnwy Straining Tower.jpg
Type Intake tower
Location Lake Vyrnwy, Powys, Wales
Coordinates 52°46′12″N3°27′57″W / 52.7699°N 3.4658°W / 52.7699; -3.4658 Coordinates: 52°46′12″N3°27′57″W / 52.7699°N 3.4658°W / 52.7699; -3.4658
Built1881–1892
Architect George Frederick Deacon
Architectural style(s) Gothic Revival
Owner Severn Trent Water Authority
Listed Building – Grade I
Official nameLake Vyrnwy Straining Tower and approach bridge
Designated25 November 1993
Reference no.15622
Listed Building – Grade I
Official nameLake Vyrnwy Dam
Designated25 November 1993
Reference no.15621
Listed Building – Grade II
Official nameLake Vyrnwy Dam Memorials
Designated26 February 2003
Reference no.80917
Listed Building – Grade II
Official nameMemorial Obelisk to Lake Vyrnwy Workers
Designated26 February 2003
Reference no.80919
Powys UK relief location map.jpg
Red pog.svg
Location of Lake Vyrnwy Straining Tower and approach bridge in Powys

The Straining Tower at Lake Vyrnwy is an intake tower built to extract water from the lake. The tower stands on the north shore of Lake Vyrnwy, near the village of Llanwddyn, in Powys, Wales. The Lake Vyrnwy dam project was designed to provide a water supply to the city of Liverpool and work on the dam began in 1881. On its completion 11 years later, the lake was the largest reservoir in Europe and water was drawn from it into the straining tower and carried to Liverpool on a 110km-long aqueduct. The engineers for the project were Thomas Hawksley and George Frederick Deacon, although the straining tower was entirely Deacon's design. The tower is constructed in a Gothic Revival style, purportedly based on the tower of the castle at Chillon, Switzerland. It draws heavily on the contemporaneous work of William Burges, whose Cardiff Castle and Castell Coch are clear influences. The straining tower is a Grade I listed building.

Contents

History

The Lake Vyrnwy dam project was part of a national endeavour to supply water for drinking and sanitation to the expanding Victorian cities of the Industrial Revolution. [1] Construction of the dam, which involved the relocation of the village of Llanwddyn, began in 1881, the lake was filled by 1888, and the first supplies of water to Liverpool, 68 miles away, began in July 1892. [2] Forty-four workmen died during construction, 10 from workplace accidents, and are commemorated in a memorial at the lake. [3] Another commemorative stone celebrates the official commencement of the reservoir's construction on 14 July 1881 by Edward Herbert, 3rd Earl of Powis. [4] On its completion, the lake was the largest reservoir in Europe, and the aqueduct to Liverpool the longest in the world. [5]

Water is extracted from the lake through the straining tower. Designed by George Frederick Deacon and completed in 1892, [6] the tower extracts water from the lake by hydraulic pressure. [7] It contains three filtration strainers which were used to cleanse the lake water before onward transportation. They have now been superseded by modern purification facilities located away from the lake. [8]

Architecture

The tower stands 52m high, and is constructed of concrete faced with snecked rubble. [9] The style Deacon deployed is Gothic Revival and Robert Scourfield and Richard Haslam, in their 2013 volume, Powys, of the Buildings of Wales series, note that he was "clearly influenced by Burges". [6] The circular tower is topped by an octagonal turret with a range of pyramidal roofs of copper. The straining tower is a Grade I listed building. The Cadw listing records the traditional suggestion that Deacon was influenced by Chillon Castle in his choice of style, but supports Pevsner in suggesting that contemporary, and relatively local, examples by William Burges were the more likely sources. [10] [lower-alpha 1]

Notes

  1. Burges himself certainly drew on Chillon Castle for his dramatic silhouette at Castell Coch, having seen in the building during his stay in Switzerland while on a European tour in the early 1850s. In the same country, the Kapellbrücke in Lucerne provided the model for his Swiss Bridge at Cardiff Castle.

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References

  1. "Vyrnwy Dam". Engineering Timelines. Retrieved 30 July 2022.
  2. "History of Lake Vyrnwy". Lake Vyrnwy Tourism. Retrieved 30 July 2022.
  3. Cadw. "Memorial Obelisk to Lake Vyrnwy Workers (Grade II) (80919)". National Historic Assets of Wales . Retrieved 30 July 2022.
  4. Cadw. "Lake Vyrnwy Dam Memorials (Grade II) (80917)". National Historic Assets of Wales . Retrieved 30 July 2022.
  5. "Vyrnwy Waterworks". Graces Guide. Retrieved 30 July 2022.
  6. 1 2 Scourfield & Haslam 2013, pp. 129–130.
  7. "Lake Vyrnwy". Practical Engineer – Graces Guide. Retrieved 30 July 2022.
  8. "In the engine room: Lake Vyrnwy". RSPB Community. Retrieved 30 July 2022.
  9. "Lake Vyrnwy Straining Tower (32443)". Coflein. RCAHMW . Retrieved 30 July 2022.
  10. Cadw. "Lake Vyrnwy Straining Tower and approach bridge (Grade I) (15622)". National Historic Assets of Wales . Retrieved 30 July 2022.

Sources