Main affluents The main affluents of North Sea, Skagerrak and Kattegat Name MeanDischarge Length Basin States Course Rhine 2900 m³/s(R-M-delta)2300 m³/s (proper) 1238.8 km (with Hinterrhein)1240 km (with Vorderrhein) (with Meuse) Switzerland (sources), Liechtenstein, Austria, Germany, France, Netherlands,Luxembourg (Moselle), Italy (Reno di Lei) smallest flow: Dischmabach → Landwasser → Albula → Hinterrhein (sum = 72 km) → Rhinelongest course: Rein da Medel → Vorderrhein (sum = 74 km)→ Rhine Elbe 870 m³/s 1094 km (nominally) 1245 km (hydrologically) the Czech Republic (sources), Germany, Austria (Lainsitz), Poland (Dzika Orlica and smaller affluents) longer and larger tributary Vltava Glomma 698 m³/s 601 km Norway, Sweden (affluents) Glomma → lake Aursunden → Glomma → Skagerrak Göta älv 575 m³/s 93 km (nominally) 720 km (hydrologically) Sweden, Norway (Trysilelva) Rogen → lake Femunden → Trysilelva → Klarälven → lake Vänern → Göta älv → KattegatLeibniz-Institut für Ostseeforschung Warnemünde: Gehört das Kattegatt noch zur Ostsee (Is the Kattegat a part of the Baltic Sea?) → By physical criteria, the border between North Sea and Baltic sea is in the Øresund at Drodgen Sill and in the Great Belt near Langeland IJssel 380 m³/s (75% from Rhine)Hydrological trends IJsselmeer (in Dutch) 125 km (nominally) 188 km (with Oude IJssel) Netherlands, Germany (source Oude IJssel) Oude IJssel → IJssel → Ketelmeer → IJsselmeer → Wadden Sea Meuse 357 m³/s 874 km France (source), Belgium, Netherlands,Luxembourg (Chiers), Germany (Rur, S(ch)walm, Niers) sharing mouths of the Rhine Weser 327 m³/s 451.4 km (nominally) 751 km (with Werra) Germany formed by confluence of Werra (longer) and Fulda (larger) Drammenselva 314 m³/s 48 km (nominally) 301 km (system) Norway … → Slidrefjorden → Strondafjorden → Aurdalsfjorden → Begna → Sperillen → Ådalselva → Randselva → Storelva→ Tyrifjorden → Drammenselva → Oslofjord Humber(estuary) 250 m³/s (without tide flows) 62 km (nominally) 359 km (with Trent) England common estuary of Trent and Ouse (see below) Tay 170 m³/s 193 km Scotland River Tay → Firth of Tay (estuary, included in the figures) Otra 150 m³/s 245 km Norway → Skagerrak Sira 130 m³/s 152 km Norway Scheldt 127 m³/s 360 km France (source), Belgium, Netherlands (estuary) River Forth 112 m³/s 47 km (nominally) 55 km (hydrologically) http://www.sepa.org.uk/system_pages/search.aspx?q=Forth The catchment area of both the River Forth and Firth of Forth Estuary. Scotland → Firth of Forth Numedalslågen 111 m³/s 352 km Norway → Skagerrak Trent 99 m³/s 297 km England → Humber (see above) Tweed 85 m³/s 156 km Scotland (source), England Lagan 82 m³/s 244 km Sweden → Kattegat Ems 80.5 m³/s 371 km Germany, Netherlands (estuary) Thames 65.8 m³/s 346 km England Spey 64 m³/s 173 km Scotland → Moray Firth Ätran 52.5 m³/s 243 km Sweden → Kattegat Zwarte Water 50 m³/s 19 km (nominally) 201 km (with Vecht) Germany (source), Netherlands Vecht/Vechte → Zwarte Water → Zwarte Meer → IJsselmeer → Wadden Sea River Tyne 44.6 m³/s 321.4 km England Yorkshire Ouse 44 m³/s 208 km (with Ure) England Ure → Ouse → Humber (see above) Nissan 41 m³/s 200 km Sweden → Kattegat Skjern Å 36.6 m³/s 94 km Miljø og Energiministeriet: Afstrømningsforhold i danske vandløb (2000), p. 16 Denmark → Ringkøbing Fjord (lagoon) Great Ouse 35 m³/s 270 km England → The Wash Gudenå 32.4 m³/sA bit lesser than Skjern Å 149 km Denmark → Kattegat
Long list
Austrian drainage basin Elbe (near Cuxhaven, Germany) Vltava (in Mělník, Czech Republic) Lužnice (in Týn nad Vltavou, Czech Republic) Rhine (main branch at Hook of Holland, Netherlands) Bregenzer Ach (into Lake Constance in Bregenz) Dornbirner Ach (into Lake Constance near Bregenz) Ill (near Feldkirch)
Belgian drainage basin Yser (in Nieuwpoort) – France, Belgium
Czech drainage basin
Elbe (near Cuxhaven, Germany) Ploučnice (in Děčín) Ohře (in Litoměřice) Vltava (in Mělník) Berounka (in Prague) Střela (in Liblín) Radbuza (in Plzeň) Úhlava (in Plzeň) Mže (in Plzeň) Sázava (in Davle) Želivka (in Soutice) Otava (in Zvíkovské Podhradí) Lužnice (in Týn nad Vltavou) Nežárka (in Veselí nad Lužnicí) Jizera (in Lázně Toušeň) Chrudimka (in Pardubice) Orlice (in Hradec Králové) Tichá Orlice (in Žďár nad Orlicí) Divoká Orlice (in Žďár nad Orlicí)
Danish drainage basins Gudenå (into Kattegat near Randers) Skjern Å (near Skjern)
English drainage basins
Flowing into the North Sea – Thames and Medway From Foreness Point to Shoeburyness River Medway (shares the Thames estuary) River Beult River Teise River Bewl River Eden, Kent River Bourne, Kent River Len Loose Stream East Malling Stream Wateringbury Stream River Thames (From Oxford up to its source, the Thames is also known as the River Isis) River Darent River Cray River Shuttle Danson Stream Wyncham Stream Longlands Stream River Ingrebourne (tidal reach known as Rainham Creek) River Beam (downstream name for River Rom) The Ravensbourne Wogebourne (lower reach known as Crossway Canal) River Roding (tidal reach known as Barking Creek) River Lea (or Lee) River Moselle (mostly subterranean, original tributary of Lee, now empties into Pymme's Brook) The Hackney Brook (subterranean, and probably now diverted to the Thames) River Beane River Rib River Mimram River Ravensbourne (tidal reach known as Deptford Creek) Spring Brook River Pool River Beck Chaffinch Brook River Quaggy (upper reaches known as Kyd Brook) Quaggy Hither Green Middle Kid Brooke Lower Kid Brooke Little Quaggy Fairy Hall Flow Grove Park Ditch Border Ditch Milk Street Ditch Halls Farm Ditch Petts Wood Ditch East Branch Main Branch River Neckinger (See also Subterranean rivers of London for this and the others marked 'subterranean' below) Walbrook (subterranean) River Fleet (subterranean, also known as the Holbourne) River Effra (subterranean) River Tyburn (subterranean) Falconbrook (subterranean) River Westbourne (subterranean) Tyburn Brook (subterranean) Counter's Creek (subterranean) River Wandle River Graveney Beverley Brook Pyl Brook Stamford Brook (subterranean – tidal reach known as Hammersmith Creek) Bollar or Bollo Brook (subterranean) River Brent Dollis Brook Duke of Northumberland's River River Crane Hogsmill River The Rythe River Ember River Mole Longford River River Ash River Wey River Tillingbourne River Ock, Surrey River Bourne, north branch River Bourne, south branch River Colne Wraysbury River Frays River River Pinn River Misbourne River Chess River Gade River Bulbourne River Ver Colne Brook The Cut River Wye River Loddon St Patrick's Stream Twyford Brook Emm Brook River Blackwater River Whitewater River Hart Wish Stream Cove Brook River Kennet Foudry Brook River Enborne River Lambourn River Dun River Og River Pang River Bourne River Thame River Ock River Cherwell River Ray River Swere River Evenlode River Glyme River Dorn River Windrush River Cole River Leach River Coln River Ray River Key River Churn
Flowing into the North Sea – North of the Thames Estuary
From Shoeburyness to St Abb's Head River Crouch River Roach Prittle Brook River Blackwater River Chelmer River Ter River Brain River Colne River Stour River Orwell River Gipping River Deben River Alde/River Ore Minsmere River River Blyth River Yox River Yare River Bure River Thurne River Ant River Waveney River Hundred (Benacre, Kessingland River Chet River Wensum River Tas River Burn River Great Ouse Babingley River River Nar River Wissey River Little Ouse River Thet River Lark River Cam River Ivel River Hiz River Ouzel or Lovat River Tove River Nene River Ise Willow Brook River Welland Whaplode River New River Car Dyke (Peterborough) Eye Brook
River Chater River Gwash Vernatt's Drain South Drove Drain River Glen West Glen River East Glen River Bourne Eau Risegate Eau Boston Haven South Forty-Foot Drain Hammond Beck North Forty Foot Drain Clay Dike Skerth Drain River Witham River Slea Billinghay Skirth River Brant Fossdyke Navigation River Till River Bain River Waring Newham Drain Castle Dike Maud Foster Drain West Fen Drain Medlam Drain Stone Bridge Drain West Fen Catchwater Drain East Fen Catchwater Drain Hobhole Drain Cowbridge Drain Bell Water Drain Fodder Dike Steeping River River Lymn Cow Bank Drain Saltfleet Haven Great Eau Long Eau Mar Dike South Dike Grainthorpe Haven River Lud Canalised and diverted as Louth Navigation. Tetney Haven Louth Navigation Waithe Beck Humber estuary Buck Beck River Freshney East Halton Beck The Beck River Ancholme West Drain Halton Drain River Trent Pauper's Drain River Torne River Eau River Idle River Maun River Meden River Ryton River Devon River Greet River Leen River Erewash River Soar River Wreake River Sence River Derwent River Amber River Wye River Lathkill River Bradford River Noe River Ashop River Alport River Westend River Dove River Manifold River Hamps River Tame River Blythe River Cole River Rea River Anker River Sow River Penk River Ouse Swinefleet Warping Drain River Don River Rother River Doe Lea River Hipper River Drone River Sheaf Porter Brook Meers Brook River Rivelin River Loxley River Little Don River Dearne River Dove River Went River Aire River Worth River Calder River Colne River Holme River Hebble River Derwent River Rye River Seven River Dove River Riccal River Hertford River Wharfe River Dibb River Skirfare River Washburn River Foss River Nidd River Ure River Swale Cod Beck River Wiske River Cover River Bain River Hull Sands Drain Winestead Drain Gypsey Race Sea Cut (Scalby Beck) River Esk Iburndale Beck Little Beck May Beck Skelton Beck River Tees River Leven River Skerne River Greta River Balder River Lune River Wear River Browney River Deerness River Gaunless River Tyne River South Tyne River Allen River East Allen River West Allen Haltwhistle Burn River North Tyne Warks Burn Chirdon Burn Lewis Burn Devil's Water River Derwent River Team River Blyth River Wansbeck River Font River Coquet River Aln River Tweed Whiteadder Water, Scotland Blackadder Water, Scotland River Till River Glen Eden Water, Scotland River Teviot, Scotland Leader Water, Scotland Gala Water, Scotland Ettrick Water, Scotland Leithen Water, Scotland Quair Water, Scotland Eddleston Water, Scotland Manor Water, Scotland Holms Water, Scotland
French drainage basin
The Aa is an 89 km long river in northern France. Its source is near the village Bourthes. It flows through the départements and cities of Pas-de-Calais: Saint-Omer and Nord: Gravelines. Aa (in Gravelines)
German drainage basin
The three main rivers in Germany are the Rhine () (main tributaries including the Neckar, the Main and the Moselle (Mosel)); the Elbe (also drains into the North Sea); and, the Danube (Donau).
German rivers draining into the North Sea The rivers in this section are sorted south-west (Netherlands) to east (Danish border).
Meuse (main branch at Stellendam, Netherlands) Niers (in Gennep, Netherlands) Rur/Roer (in Roermond, Netherlands) Wurm (near Heinsberg) Inde (in Jülich) Rhine/Rhein (main branch at Hook of Holland, Netherlands) Lippe (in Wesel) Alme (in Paderborn) Emscher (near Dinslaken) Ruhr (in Duisburg) Volme (near Hagen) Lenne (near Hagen) Möhne (in Neheim-Hüsten) Erft (in Neuss) Wupper/Wipper (in Leverkusen) Sieg (in Bonn) Agger (in Siegburg) Nister (in Wissen) Ahr (near Sinzig) Wied (in Neuwied) Mehrbach (near Asbach) Aubach (in Neuwied) Engelsbach (Aubach) (in Neuwied) Moselle (in Koblenz) Elzbach (in Moselkern) Alf (in Alf)