It now flows from the dam into Shropshire where it converges with the River Severn near the village of Melverley on the Welsh border. It flooded the head of the Vyrnwy Welsh: Management of the moorland helps improve the habitat for red grouse and the short-eared owl. All articles with dead external links Articles with dead external links from November Articles with permanently dead external links Use dmy dates from June Use British English from June Articles needing additional references from September All articles needing additional references Wikipedia articles with style issues from July All articles with style issues Articles with multiple maintenance issues Coordinates on Wikidata Articles containing Welsh-language text All articles with unsourced statements Articles with unsourced statements from June The RSPB has several bird hides around the lake, where a number of rare species of birds are known to be breeding, including the peregrine falcon , the pied flycatcher , the redstart , the siskin and the wood warbler.

Archived from the original on 22 February Known locally as Pistyll Rhyd-y-meincau, it is commonly known as Rhiwargor waterfall. Skip to main content. Its architecture represents Gothic revival , built at the same time as the dam. Official Languages Work opportunities Make a complaint. News Latest news Press area Brexit in Wales. From Wikipedia, the free encyclopedia.

Lake Vyrnwy is a designated Nature Reserve.

GCSE Geography: Water Transfer – Vyrnwy Case study

By using this site, you agree to the Terms of Use and Privacy Policy. Sheep, cattle and ponies also graze on the heather. This article has multiple issues. The valley was chosen because of its size, favourable geology and its source, the River Vyrnwyhas a large water catchment area.


The current provision relies on three pipes 1. Inshortly after completion, the lake was stocked withLoch Leven trout.

Skip to main content. Llanwddyn has had since a sculpture park in the valley below the dam, containing many wooden carved works. This was damaged in stormy weather and had to be felled. Education and youth engagement visits Security and accessibility What’s on at the Assembly.

George Deacon — was instructed to prepare the parliamentary plans for the Vyrnwy Dam in Unsourced material may be challenged and removed.

Lake Vyrnwy Case Study

RSPB Cymru lale an active monitoring programme for biodiversity on the site, and Lake Vyrnwy will remain a key area in further conservation efforts within the North Wales Moors Futurescape. Please help improve it by rewriting it in an encyclopedic style. It crosses the valley floor near Penybontfawr and then runs north of Llanrhaeadr-ym-Mochnant and Efail-rhyd on the north-east of the Tanat Valley.

vynrwy Known locally as Pistyll Rhyd-y-meincau, it is commonly vurnwy as Rhiwargor waterfall. At the bottom of the dam is a body of water known as a stilling basin ; this is necessary to absorb the energy when the water flows over the crest and into the valley, and to stop the water eroding the foundations of the dam.


Vyrnwy was the first dam to carry water over its crest instead of in a channel at the side.

lake vyrnwy case study

Archived from the original on 22 February The livestock is managed by tenant farmers who farm the moorland in accordance with organic agriculture. The ouflow is into the Bristol Channel. This was an sudy use of the material which was to become the norm for trunk water-main piping.

View overlooking Lake Vyrnwy showing the full extent of the lake. Llanwddyn, the community surrounding Lake Vyrnwy, had a population of inaccording to the census ; [6] a A power house located under the west tower contains an electrical generator driven by water leaving the reservoir. Some are no more than a trickle, while others cascade down the mountains.

lake vyrnwy case study

Its length is 7. The census showed Afon Efyrnwy valley and submerged the village of Llanwddyn.

Lake Vyrnwy – Wikipedia

The lake continues to supply Liverpool with drinking water. Views Read Edit View history.

George Deacon was appointed as joint engineer and Hawksley resigned in because of this conflict. To help maintenance work on the 2. Sutdy means there are reduced level of pesticides and fertilizer used on the farm, resulting in significantly lower levels of pollutants in Lake Vyrnwy.