List of reservoirs and dams in the United Kingdom

England

Bedfordshire

Buckinghamshire

• Foxcote Reservoir, north of Buckingham
• Weston Turville Reservoir, between Weston Turville and Wendover

Cambridgeshire

• Grafham Water

Cheshire

• Bosley Reservoir, Bosley
• Lamaload Reservoir, east of Macclesfield
• Ridgegate Reservoir and Trentabank Reservoir, south-east of Macclesfield
• Sutton Reservoir, south of Macclesfield

Cornwall

• Argal and College Reservoirs, Falmouth
• Boscathnoe Reservoir, Penzance
• Bussow Reservoir, St Ives
• Cargenwen Reservoir
• Colliford Lake
• Crowdy Reservoir
• Drift Reservoir, Penzance
• Porth Reservoir, Newquay
• Siblyback Lake
• Stithians Reservoir

County Durham

• Balderhead Reservoir
• Blackton Reservoir
• Burnhope Reservoir
• Derwent Reservoir
• Grassholme Reservoir
• Hisehope Reservoir
• Hurworth Burn Reservoir
• Hury Reservoir
• Selset Reservoir
• Smiddy Shaw Reservoir
• Turnstall Reservoir
• Waskerley Reservoir

Cumbria

• Baystone Bank, north of Millom
• Borrans Reservoir, north of Windermere (town)
• Chapelhouse Reservoir, south-east of Uldale
• Cow Green Reservoir east of Dufton Fell
• Dubbs Reservoir, north of Windermere (town)
• Ennerdale Water
• Fisher Tarn east of Kendal
• Harlock Reservoir, Pennington Reservoir, Poaka Beck Reservoir west of the town of Ulverston
• Haweswater Reservoir
• Hayeswater
• Kentmere Reservoir
• Killington Reservoir
• Meadley Reservoir, by Flat Fell, Ennerdale, Cumbria
• Simpson Ground Reservoir, east of Newby Bridge
• Thirlmere
• Wet Sleddale Reservoir

Derbyshire

• Carsington Water
• Errwood Reservoir
• Fernilee Reservoir
• Ogston Reservoir
• Upper Derwent Valley
• Ladybower Reservoir
• Derwent Reservoir with Birchinlee
• Howden Reservoir
• Longdendale Chain of reservoirs
• Arnfield Reservoir
• Bottoms Reservoir
• Valehouse Reservoir
• Rhodeswood Reservoir
• Torside Reservoir
• Woodhead Reservoir

Devon

• Avon Dam Reservoir
• Burrator Reservoir
• Challacombe Reservoir
• Darracott Reservoir
• Fernworthy Reservoir
• Gammaton Reservoirs
• Holywell Reservoir
• Jennetts Reservoir
• Kennick Reservoir
• Melbury Reservoir
• Meldon Reservoir
• Roadford Lake
• Slade Reservoir
• Tottiford Reservoir
• Trenchford Reservoir
• Venford Reservoir
• Wistlandpound Reservoir

East Sussex

• Darwell Reservoir
• Powdermill Reservoir

Essex

• Abberton Reservoir
• Ardleigh Reservoir
• Hanningfield Reservoir

Gloucestershire

• Dowdeswell Reservoir

Greater Manchester

• Bolton:
• High Rid Reservoir
• Rumworth Lodge Reservoir
• Manchester:
• Gorton Reservoirs
• Heaton Park Reservoirs
• Manchester, Bolton and Bury Reservoir
• Oldham:
• Ashworth Moor Reservoir
• Besom Hill Reservoir
• Black Moss Reservoir
• Brownhouse Wham Reservoir
• Brushes Clough Reservoir
• Castleshaw Reservoir
• Chew Reservoir
• Crook Gate Reservoir
• Diggle Reservoir
• Dovestones Reservoir
• Dowry Reservoir
• Greenfield Reservoir
• Greenbooth Reservoir
• Hamer Pasture Reservoir
• Lower Chelburn Reservoir
• Naden Reservoirs (Higher, Middle and Lower)
• New Years Bridge Reservoir
• Readycon Dean Reservoir
• Strinesdale Reservoir
• Yeoman Hey Reservoir
• Rochdale:
• Ashworth Moor Reservoir
• Blackstone Edge Reservoir
• Chelburn Reservoir
• Greenbooth Reservoir
• Hanging Lees Reservoir
• Hollingworth Lake
• Kitcliffe Reservoir
• Light Hazzles Reservoir
• Norman Hill Reservoir
• Ogden Reservoir
• Piethorne Reservoir
• Rooden Reservoir
• Watergrove Reservoir
• Tameside:
• Audenshaw Reservoirs
• Brushes Reservoir
• Denton Reservoirs
• Higher Swineshaw Reservoir
• Lower Swineshaw Reservoir
• Swineshaw Reservoirs
• Walkerwood Reservoir
• Wigan:
• Worthington Lakes

Hertfordshire

• Tring Reservoirs

Kent

• Bough Beech
• Bewl Water

Lancashire

• Anglezarke Reservoir
• Belmont Reservoir
• Calf Hey Reservoir
• Cowm Reservoir
• Delph Reservoir
• Dingle Reservoir
• Holden Wood Reservoir
• Jumbles Reservoir
• Lower Rivington Reservoir
• Lower Roddlesworth Reservoir
• Ogden Reservoir (Lancashire)
• Rake Brook Reservoir
• Spring Mill Reservoir
• Springs Reservoir
• Turton and Entwistle Reservoir
• Upper Rivington Reservoir
• Upper Roddlesworth Reservoir
• Wayoh Reservoir
• Yarrow Reservoir

Leicestershire

• Blackbrook Reservoir
• Eyebrook Reservoir (Corby)
• Cropston Reservoir
• Knipton Reservoir
• Nanpantan Reservoir
• Saddington Reservoir
• Staunton Harold Reservoir
• Swithland Reservoir
• Thornton Reservoir

Lincolnshire

• Covenham Reservoir

London

• Brent Reservoir (also known as the Welsh Harp)
• Stoke Newington West Reservoir

The following reservoirs form the Lee Valley Reservoir Chain.

• King George's Reservoir, London Borough of Enfield (also known as King George V Reservoir)
• William Girling Reservoir, London Borough of Enfield
• Banbury Reservoir, London Borough of Waltham Forest
• Lockwood Reservoir, London Borough of Waltham Forest
• High Maynard Reservoir, London Borough of Waltham Forest
• Low Maynard Reservoir, London Borough of Waltham Forest
• Walthamstow Reservoirs, London Borough of Waltham Forest, five linked numbered reservoirs
• East Warwick Reservoir, London Borough of Waltham Forest
• West Warwick Reservoir, London Borough of Waltham Forest

Northamptonshire

• Boddington Reservoir, a canal supply reservoir between Byfield and Upper Boddington
• Cransley Reservoir (Kettering)
• Daventry Reservoir in Daventry Country Park
• Drayton Reservoir (Daventry)
• Hollowell reservoir
• Naseby Reservoir
• Pitsford Water
• Ravensthorpe Reservoir
• Stanford Reservoir, between Stanford-on-Avon and South Kilworth
• Sulby and Welford Reservoirs
• Sywell Reservoir
• Thorpe Malsor Reservoir (Kettering)

Northumberland

• Bakethin Reservoir
• Catcleugh Reservoir
• Colt Crag Reservoir
• Fontburn Reservoir
• Hallington Reservoirs
• Little Swinburn Reservoir
• Kielder Water

North Yorkshire

• Angram Reservoir
• Upper and Lower Bardon Reservoirs
• Beaver Dyke Reservoirs
• Chelker Reservoir
• Cod Beck Reservoir
• Elslack Reservoir
• Embsay Reservoir
• Fewston Reservoir
• Gouthwaite Reservoir
• Grimwith Reservoir
• Laneshaw Reservoir
• Leighton Reservoir
• Lindley Wood Reservoir
• Lumley Moor Reservoir
• March Ghyll Reservoir
• Mossy Moor Reservoir
• Oulston Reservoir
• Roundhill Reservoir
• Scar House Reservoir
• Scargill Reservoir
• Swinsty Reservoir
• Ten Acre Reservoir
• Thornton Steward Reservoir
• Thruscross Reservoir
• Winterburn Reservoir

Oxfordshire

• Clattercote Reservoir (Banbury)
• Farmoor Reservoir (Oxford),

Rutland

• Rutland Water

Shropshire

• Chelmarsh Reservoir
• Knighton Reservoir

Somerset

• Ashford Reservoir
• Barrow Gurney Tanks
• Blagdon Lake
• Chard Reservoir
• Cheddar Reservoir
• Chew Valley Lake
• Clatworthy Reservoir
• Durleigh Reservoir
• Hawkridge Reservoir
• Leigh Reservoir
• Litton Reservoirs
• Luxhay Reservoir
• Nutscale Reservoir
• Sutton Bingham Reservoir
• Wimbleball Lake

South Yorkshire

• Agden Reservoir
• Broadstone Reservoir
• Broomhead Reservoir
• Dale Dyke Reservoir
• Damflask Reservoir
• Elsecar Reservoir
• Howden Reservoir
• Ingbirchworth Reservoir
• Langsett Reservoir
• Midhope Reservoir
• More Hall Reservoir
• Pebley Reservoir (Sheffield)
• Redmires Reservoirs
• Rivelin Dams
• Royd Moor Reservoir
• Scout Dyke Reservoir
• Snailsden Reservoir
• Strines Reservoir
• Underbank Reservoir
• Weecher Reservoir
• Wharncliffe Reservoir
• Windleden Reservoirs
• Winscar Reservoir
• Worsbrough Reservoir

Staffordshire

• Belvide Reservoir
• Blithfield Reservoir
• Chasewater
• Gailey Reservoir
• Hatherton Reservoir
• Hanch Reservoir
• Rudyard Lake
• Tittesworth Reservoir

Surrey

• Bessborough Reservoir
• Island Barn Reservoir
• King George VI Reservoir
• Knight Reservoir
• Molesey Reservoirs
• Queen Elizabeth II Reservoir
• Queen Mary Reservoir
• Queen Mother Reservoir
• Stain Hill Reservoirs
• Staines Reservoirs
• Sunnyside Reservoir
• Wraysbury Reservoir

Warwickshire

• Draycote Water
• Oldbury Reservoir
• Packington Lakes - support for the Grand Union Canal
• Shustoke Reservoirs
• Wormleighton Reservoir

West Midlands

• Bartley Reservoir (Birmingham)
• Brookvale Park Lake (Birmingham)
• Edgbaston Reservoir (Birmingham)
• Frankley Reservoir (Birmingham)
• Lifford Reservoir (Birmingham)
• Netherton Reservoir, Dudley
• Olton Reservoir, Solihull
• Perry Barr Reservoir (covered) (Birmingham)
• Witton Lakes (Birmingham)
• see also Elan Valley Reservoirs (Wales) which were built by, and supply, Birmingham.

West Sussex

• Ardingly Reservoir
• Weir Wood Reservoir

West Yorkshire

• Baitings Reservoir
• Blackmoorfoot Reservoir
• Eccup Reservoir
• Green Withens Reservoir
• Redbrook Reservoir
• Ringstone Edge Reservoir
• Ryburn Reservoir
• Scammonden Reservoir
• Swellands Reservoir
• Walshaw Dean Reservoirs
• Warland Reservoir (Mostly in West Yorkshire, partly in Greater Manchester)

Worcestershire

• Bittell Reservoirs (Upper and Lower)
• Tardebigge Reservoir

Northern Ireland

Co. Down

• Silent Valley Reservoir
• Spelga Reservoir

Scotland

Argyll and Bute

• Loch Awe - part of the Awe hydroelectric scheme

City of Edinburgh

• Harlaw Reservoir
• Threipmuir Reservoir

Highland

• Blackwater Reservoir, near Kinlochleven
• Loch Laggan and Loch Treig - both part of the Lochaber hydroelectric scheme
• Loch Monar - part of the Strathfarrar hydroelectric scheme
• Loch Quoich and Loch Garry - both part of the Glen Garry hydroelectric scheme
• Loch Loyne and Loch Cluanie - both part of the Glen Moriston hydroelectric scheme
• Loch Mullardoch - part of the Glen Affric hydroelectric scheme
• Loch Katrine
• Loch Glascarnoch

Inverclyde

• Loch Thom

Midlothian

• Edgelaw Reservoir
• Gladhouse Reservoir
• Glencorse Reservoir
• North Esk Reservoir
• Rosebery Reservoir

Perth and Kinross

• Loch Tummel - part of the Tummel Valley hydroelectric scheme

Renfrewshire

• Gryffe Reservoir

East Renfrewshire

• Balgray Reservoir
• Littleton Resrvoir
• Ryat Linn Reservoir
• Waulkmill Glen Reservoir
• Walton Dam
• Glanderson Dam
• Synpes Dam
• Kirkton Dam

Scottish Borders

• Baddinsgill Reservoir
• Fruid Water
• Megget Reservoir
• Talla Reservoir
• Westwater Reservoir

South Lanarkshire

• Camps Reservoir
• Culter Waterhead Reservoir

West Lothian

• Cobbinshaw Reservoir
• Eliburn Reservoir
• Harperrig Reservoir

others

• Dunoon Reservoir

Wales

Anglesey (Ynys Mon)

• Llyn Alaw - Water supply to much of north Anglesey
• Llyn Cefni - Water supply to central Anglesey

Cardiff

• Llanishen Reservoir - Water supply to Cardiff
• Lisvane Reservoir - Water Supply to Cardiff

Carmarthenshire

• Upper and Cwm Lliedi Reservoirs
• Llyn Brianne
• Llyn y Fan Fach
• Llyn y Fan Fawr
• Usk Reservoir

Ceredigion

• Dinas Reservoir
• Teifi Pools
• Llyn Teifi
• Nant y Moch Reservoir

Conwy

• Llyn Bodgynydd - supply for the Pandora lead mine (disused)
• Llyn Brenig - part of Dee Regulation system - also in Denbighshire
• Llyn Coedty - provides power for an aluminium smelter
• Llyn Conwy - water supply for Llanrwst and Betws-y-Coed
• Llyn Cowlyd - water supply for Conwy and Colwyn Bay
• Llyn Crafnant - water supply for Llanrwst
• Llyn Parc - supply for the Aberllyn mine (disused)

Denbighshire

• Cae Llwyd Reservoir
• Llyn Brenig - part of the River Dee regulation system
• Llyn Celyn - part of the River Dee regulation system. Its construction caused local outrage with the flooding of a Welsh village to enable water to be supplied to England
• Llyn Efyrnwy (Lake Vyrnwy) - supplies water to the Midlands
• Pendinas Reservoir
• Llyn Tegid (Bala Lake)
• Nant-y-Ffrith Reservoir
• Ty Mawr Reservoir

Gwynedd

• Llyn Anafon - water supply for Llanfairfechan, Dwygyfylchi and Penmaenmawr
• Llyn Arenig Fach
• Llyn Arenig Fawr - water supply for Bala town
• Llynnau Barlwyd - supply to Llechwedd slate quarry
• Llyn Bodlyn - water supply to Barmouth. Also supports the rare Arctic char
• Llyn Bowydd - supply to the Blaenau Ffestiniog slate quarries
• Llyn Cwm Corsiog - supply for Rhosydd slate quarry (disused)
• Llyn Cwellyn - water supply to Bangor and parts of south Anglesey
• Marchlyn Mawr - header reservoir for the Dinorwig power station hydroelectric system.
• Llyn Peris
• Llyn Padarn - part of the Dinorwig hydroelectric system
• Llyn Trawsfynydd - built for the former Trawsfynydd power station

Merthyr Tydfil

• Pontsticill Reservoir

Neath Port Talbot

• Eglwys Nynydd - water supply to Corus Group steel-works at Port Talbot

Pembrokeshire

• Llys-y-Frân
• Rosebush Reservoir

Powys

• Taff Fawr Reservoirs- A chain of three reservoirs supplying the Rhondda and Taff valley and Cardiff with water
• Beacons Reservoir
• Cantref Reservoir
• Llwynon Reservoir
• Taff Fechan Reservoirs - a chain of four reservoirs also supplying the Taff valley and Cardiff with water
• Upper Neaudd Reservoir
• Lower Neuadd Reservoir
• Doly y gaer Reservoir
• Pontsticill Reservoir
• Elan Valley Reservoirs - a group of reservoirs supplying Birmingham and part of the west Midlands with drinking water
• Claerwen Reservoir
• Craig-goch Reservoir
• Penygarreg Reservoir
• Garreg-ddu Reservoir
• Caban-coch Reservoir
• Talybont Reservoir
• Ystradfellte Reservoir
• Llyn Clywedog

Swansea

• Cray reservoir
• Swansea Bay barrage

See also

• Ofwat
• List of reservoirs and dams
• Geography of the United Kingdom
• List of lakes in England
• List of loughs in Northern Ireland
• List of lochs in Scotland
• List of lakes in Wales
• Rivers of the United Kingdom
• Waterways in the United Kingdom