Grwyne Fawr Reservoir

Grwyne Fawr Reservoir
Grwyne Fawr Reservoir is located in Brecon Beacons
Grwyne Fawr Reservoir
Grwyne Fawr Reservoir
LocationBrecon Beacons, Wales
Coordinates51°58′12″N 3°7′14″W / 51.97000°N 3.12056°W / 51.97000; -3.12056
TypeReservoir
Primary outflowsGrwyne Fawr
Basin countriesUnited Kingdom
Water volume400,000,000 imperial gallons (1,800 megalitres)
Surface elevation1,725 feet (526 m)[1]

The Grwyne Fawr Reservoir is located in the valley of the river Grwyne Fawr in the Brecon Beacons National Park, Wales. Completed in 1928, it has the capacity to hold 400,000,000 imperial gallons (1,800 megalitres).[2]

View across Grwyne Fawr dam
View down the Grwyne Fawr valley from the dam
The Grwyne Fawr Reservoir during the 1976 drought

Construction

By the end of the 19th-century there were serious water shortages in the western parts of the historic county of Monmouthshire. The area had seen a massive population increase as a result of the steel and coal industries but the supply of water to the area was complicated due to its high altitude. A site for a new reservoir was chosen at the head of the Grwyne Fawr valley because at 1725 ft above sea level it was high enough to allow water to be gravity fed to Abertillery and the surrounding areas.[3]

Building works started in 1912, but almost immediately hit problems.[4] The road constructed up the valley could not take the weight of the heavy traction engines used for haulage. It was decided that a new railway would be required, however negotiations with local land owners failed and the line remained incomplete. With the outbreak of the First World War proceedings were put on hold.[3]

Work recommenced in January 1919; the railway was completed and connected to the main line at Llanvihangel Crucorney. A village of construction workers and their families grew in the valley at Blaen-y-cwm. A community of some 300 people lived there with a hostel, canteen, day school, police station and hospital.[5] The workmen quarried 200,000 tons of sandstone for the construction of the dam. Large boulders weighing up to 5 tons each were set in concrete to form the dam, which is 130 feet thick at its base, the walls were then faced with dressed stone. A 16-inch diameter steel pipeline was tunnelled through Coity Mountain carrying water to a holding reservoir in Cwmtillery.[3] The dam was finally completed in February 1928, after which the railway and structures that served its construction were quickly dismantled, including the workers’ village.[4] The total cost of construction was reported to be £1 million.[2]

Operation

The reservoir has been decommissioned by Dŵr Cymru, the local water company, and no longer supplies drinking water. Poor management of the surrounding catchment area has allowed peat sediment to wash into the reservoir, causing water discolouration, and it has proved uneconomical to remedy the problem.[6]

References

  1. ^ "GRWYNE FAWR, RESERVOIR (RESERVOIR)". COFLEIN. Retrieved 10 May 2016.
  2. ^ a b "Construction of Grwyne Fawr Dam, Black Mountains, Powys, 1910s – 4 Old Photographs". amdally.wordpress.com. 4 April 2013. Retrieved 10 May 2016.
  3. ^ a b c Osborne, Graham (Spring 2005). "The construction of the Grwyne Fawr Waterworks (1913-1928): A Relic at Crosskeys". Gwent Local History (98): 63–68. Retrieved 9 May 2016.
  4. ^ a b "GRWYNE FAWR RESERVOIR (INDUSTRIAL SITE)". COFLEIN. Retrieved 10 May 2016.
  5. ^ Tipper, Rev. D. A. (1975). Stone and Steam in the Black Mountains. Blorenge Books.
  6. ^ Paul Sinnadurai (July 2009). "The Brecon Beacons National Park: a good place for Glastir Sustainable Land Management Scheme" (PDF). Brecon Beacons National Park Authority. Retrieved 9 May 2016.

Read other articles:

Bisaya (Kalimantan)

Untuk kelompok suku di Filipina, lihat Orang Bisayak. Suku BisayaOrang BisayaBusana tradisional Bisaya Sarawak.Daerah dengan populasi signifikan Brunei: 43,000[1]  MalaysiaSarawak: 23,000[2]Sabah: 22,000[3] USA: 14,000[4]BahasaBahasa Bisaya Sabah, Malaysian, Bahasa Bisaya Brunei, InggrisAgamaKebanyakan Islam dan minoritas signifikan Kristen dan AnimisKelompok etnik terkaitMurut, Kadazan-Dusun, Dayak Bisaya adalah penduduk asli barat laut dan pesi...

 

Quaternary science

Inter-disciplinary field of study focusing on the Quaternary period Quaternary scienceEnglish nameQuaternary scienceDatePleistocene Epoch (2.58 million years ago to about 11,700 years ago) and Holocene Epoch (11,700 years ago, begin after Pleistocene Epoch)Duration2.58 million years ago – present dayAlso known asThe study of Quaternary Period (ice age)MotiveTo understand the history of the Earth during the last 2.58 million yearsOutcomeAbility to predict the upcoming or futur...

 

Otkritie Arena

Otkritie Arena LokasiLokasiTushino, MoskwaKoordinat55°49′4.3″N 37°26′24.9″E / 55.817861°N 37.440250°E / 55.817861; 37.440250Koordinat: 55°49′4.3″N 37°26′24.9″E / 55.817861°N 37.440250°E / 55.817861; 37.440250KonstruksiMulai pembangunanOktober 2010Dibuka5 September 2014[1]Biaya pembuatan14 milyar RUB (430 juta USD)[2]Data teknisKapasitas45.360PemakaiFC Spartak Moskwa Tim nasional sepak bola RusiaSunting kot...

AeroSur

Compañía Boliviana de Transporte Aéreo Privado Aerosur, S.A. IATA ICAO Kode panggil 5L ASU AEROSUR Didirikan1992PenghubungBandar Udara Internasional Viru Viru (Santa Cruz de la Sierra)Kota fokusBandar Udara Internasional El Alto (La Paz)Program penumpang setiaClub AerosurArmada13Tujuan17SloganLa pasión de volar (Hasrat untuk terbang)Kantor pusatSanta Cruz de la Sierra, BoliviaTokoh utamaHumberto Roca, PresidenSitus web[1] AeroSur S.A. (Compañía Boliviana de Transporte Aéreo Privado Aer...

 

Uriel S. Hall

American politician Uriel S. Hall, Missouri Congressman. Uriel Sebree Hall (April 12, 1852 – December 30, 1932) was a U.S. Representative from Missouri, son of William Augustus Hall and nephew of Willard Preble Hall. Born near Huntsville, Missouri, Hall was tutored privately and was graduated from Mount Pleasant College, Huntsville, Missouri, in 1873. He served as superintendent of schools at Moberly, Missouri. Founded an academy at Prairie Hill, Missouri, and served as its president. He st...

 

KWFN

Sports radio station in San Diego KWFNSan Diego, CaliforniaUnited StatesBroadcast areaGreater San DiegoFrequency97.3 MHz (HD Radio)Branding97.3 The FanProgrammingLanguage(s)EnglishFormatSports radioSubchannelsHD2: The Angry Playlist (active rock)HD3: The Bet (sports gambling)Affiliations CBS Sports Radio Navy Midshipmen San Diego Padres Sports USA Radio Network Westwood One Sports OwnershipOwnerAudacy, Inc.(Audacy License, LLC, as Debtor-in-Possession)Sister stationsKBZTKSONKXSNKYXYHistoryFir...

Appalachia

Wilayah yang terlingkup dalam piagam Appalachian Regional Commission. Appalachia adalah istilah yang digunakan untuk menyebut kawasan budaya Amerika Serikat Timur yang membentang dari Southern Tier di negara bagian New York hingga wilayah utara Alabama, Mississippi, dan Georgia.[1] Sementara Pegunungan Appalachia membentang dari Belle Isle di Kanada hingga Pegunungan Cheaha di negara bagian Alabama, Amerika Serikat, wilayah budaya Appalachia hanya merujuk pada pegunungan bagian tengah...

 

Zinc (nutriment)

Pour les articles homonymes, voir Zinc (homonymie). Le zinc est un des oligo-éléments indispensables à l'homme. Il joue un rôle central dans la régulation du système immunitaire, mais aussi dans les mécanismes de division cellulaire et de croissance tissulaire, dans la réponse aux radicaux libres, dans la reproduction, dans certaines pathologies neurologiques et endocriniennes. Contenu et répartition Chez un homme adulte de 70 kg, on trouve 2 à 3 gr de zinc, apportés exclusivement...

 

Fulgencio Batista

Fulgencio Batista Presiden KubaMasa jabatan10 Maret 1952 – 1 Januari 1959Perdana MenteriAndrés DomingoJorge García MontesAndrés Rivero AgüeroEmilio Núñez PortuondoGonzalo GüellPendahuluCarlos Prío SocarrásPenggantiAnselmo AlliegroMasa jabatan10 Oktober 1940 – 10 Oktober 1944Perdana MenteriCarlos Saladrigas ZayasRamón ZaydínAnselmo AlliegroPendahuluFederico Laredo BrúPenggantiRamón Grau Informasi pribadiLahirRubén Zaldívar16 Januari 1901Banes, KubaMeninggal...

WMRN-FM

Radio station in Marion, OhioWMRN-FMMarion, OhioBroadcast areaUpper Sandusky, Marion, Bucyrus, OhioFrequency94.3 MHzBrandingBuckeye Country 94.3ProgrammingFormatCountryAffiliationsPremiere NetworksOwnershipOwneriHeartMedia(iHM Licenses, LLC)Sister stationsWYNT, WMRNHistoryFirst air dateApril 1953 (WMRN-FM at 106.9)February 27, 1975 (94.3 as WDIF)Former call signsWDIF (1975–2008)Former frequencies106.9 MHz (1953-1/6/2008)Call sign meaningMarionTechnical informationFacility ID59282ClassAERP3,...

 

コルク

この記事は検証可能な参考文献や出典が全く示されていないか、不十分です。出典を追加して記事の信頼性向上にご協力ください。（このテンプレートの使い方）出典検索?: コルク – ニュース · 書籍 · スカラー · CiNii · J-STAGE · NDL · dlib.jp · ジャパンサーチ · TWL（2017年4月） コルクを打ち抜いて作った瓶の栓 コルク（木栓、�...

 

内华达州

内華達州 美國联邦州State of Nevada 州旗州徽綽號：產銀之州、起戰之州地图中高亮部分为内華達州坐标：35°N－42°N, 114°W－120°W国家 美國建州前內華達领地加入聯邦1864年10月31日（第36个加入联邦）首府卡森城最大城市拉斯维加斯政府 • 州长（英语：List of Governors of {{{Name}}}]]） • 副州长（英语：List of lieutenant governors of {{{Name}}}]]）喬·隆巴爾多（R斯塔...

قالب:ثقافة غربية

عنتالعالم الغربي والحضارة الغربيةتاريخ كلاسيكية قديمة عصور قديمة متأخرة  العصور الوسطى عصر النهضة الحقبة الحديثة المبكرة عصر الاستكشاف إصلاح بروتستانتي عصر التنوير ثورة علمية أواخر العصور الحديثة عصر الثورة رأسمالية الثورة الصناعية تشعب كبير العصور الحديثة  الحر�...

 

Masters of the Sea (film)

1922 film This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: Masters of the Sea film – news · newspapers · books · scholar · JSTOR (February 2024) Masters of the SeaDirected byAlexander KordaWritten byErnest Vajda (novel)Produced byArnold PressburgerStarringVictor VarconiMaría CordaTibor Lubinsz...

 

國家奧林匹克委員會

Ολυμπιακοί Αγώνες（希腊文）Jeux olympiques（法文）Olympic Games（英文）奥林匹克运动会 主要议题 申办 仪式 宪章 主办城市 体育组织 国际奥委会 奖牌 奖牌统计 奖牌获得者 项目 标志 火炬接力 场馆 奥林匹克综合运动会 夏季奥运 冬季奥运 夏季青奧 冬季青奧 屆間 奥运文化与历史 古代奥运会 顾拜旦奖章 抵制 丑闻和争议 更快、更高、更強 —— 更团结Faster, Higher, Stronge...

1997 New Zealand pensions referendum

This article provides insufficient context for those unfamiliar with the subject. Please help improve the article by providing more context for the reader. (February 2022) (Learn how and when to remove this message) 1997 New Zealand pensions referendum 26 September 1997 Do you support the proposed compulsory retirement savings scheme?Results Choice Votes % Yes 163,209 8.23% No 1,820,403 91.77% Valid votes 1,983,612 99.75% Invalid or blank votes 4,938 0.25% Total votes 1,988,550 100.00% Regis...

 

西遊記大結局之仙履奇緣

本條目存在以下問題，請協助改善本條目或在討論頁針對議題發表看法。 此條目需要編修，以確保文法、用詞、语气、格式、標點等使用恰当。 (2013年8月6日)請按照校對指引，幫助编辑這個條目。（幫助、討論） 此條目剧情、虛構用語或人物介紹过长过细，需清理无关故事主轴的细节、用語和角色介紹。 (2020年10月6日)劇情、用語和人物介紹都只是用於了解故事主軸，輔助�...

 

Colonna family

Italian noble family Colonna redirects here. For other uses, see Colonna (disambiguation). ColonnaBlack noble familyParent familyCounts of TusculumCountry Papal States Kingdom of Naples Kingdom of Sicily Kingdom of ItalyCurrent region Italy Vatican CityEtymologyColumn, from Trajan's Column or city of ColonnaPlace of originTusculum, Alban HillsFounded1101; 923 years ago (1101)[1]FounderPatrus de Columna[2]Current headFederico Colo...

Type 63 (carro armato)

Questa voce o sezione sull'argomento veicoli militari non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle fonti. Segui i suggerimenti del progetto di riferimento. Tipo 63DescrizioneEquipaggio4 Utilizzatore principale Cina Dimensioni e pesoLunghezza9,6 m Larghezza3,2 m Altezza3 m Peso22 t Propulsione e tecnicaMotoreDiesel Potenza400 hp Trazionecingolata So...

 

Liselle Terret

British academic and neo-burlesque performer This article is an orphan, as no other articles link to it. Please introduce links to this page from related articles; try the Find link tool for suggestions. (September 2020) Liselle TerretEmployerUniversity of East London Websitehttps://www.uel.ac.uk/staff/t/liselle-terret  Liselle Terret (also known as Doris La Trine[1]) is a co-programme leader and a senior lecturer at the University of East London.[2] She has more tha...