Llyn Brianne Dam Engineering Design Drawings

Llyn Brianne Dam Engineering Design Drawings and Project Management Charts.

The majority of the drawings are approx.70cm x 90cm in size.

John Oates Widger, Chartered Civil Engineer (CEng.) Member of the Institute of Civil Engineers (MICE) Fellow of the Institute of Highways and Transport (FIHT) was the Project Manager for Llyn Brianne Dam throughout its construction between 1968 and 1972. He was employed by George Wimpey and Co. Ltd., and later became UK and latterly international Contracts Manager for the company.

Llyn Brianne is a man-made lake or reservoir in the headwaters of the River Tywi in Wales. The Llyn Brianne Dam was constructed to regulate the River Tywi in mid Wales and impound water supplies for south Wales. The dam was constructed of crushed rock and clay sourced from the local area. It is believed to be the tallest of its type in Europe and the highest in Britain.

Original order retained (2 rolls of drawings).

Ar Agor / Open

Dim cyfyngiadau / No Restrictions

Adnau preifat / Private deposit

Acc No: 8871.

Mae copiau clawr caled o`r catalogau ar gael yn Archifau Sir Gaerfyrddin ac yn y Gofrestr Cenedlaethol Archifau. Polisi Archifau Sir Gaerfyrddin yw catalogio yn iaith y ddogfen / Hard copies of the catalogue are available at Carmarthenshire Archives and the National Register of Archives. It is the policy of Carmarthenshire Archives to catalogue in the language of the document.

Cyflwr gweddol / Fair condition

Compiled by Emma Gordon for Archifau Sir Gaerfyrddin / Carmarthenshire Archives using the following source: Carmarthenshire Archives Service Catalogue; Llyn Brianne Dam http://www.engineering-timelines.com/scripts/engineeringItem.asp?id=85 Accessed 17/08/2021.

Mae'r holl gofnodiadau sy'n cydymffurfio â pholisi casglu Archifau Sir Gaerfyrddin wedi eu cadw / All records which meet the collection policy of the Carmarthenshire Archives have been retained

Deposited in August 2021.

Ni ddisgwylir croniadau / Accruals are not expected