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River Great Ouse water levels

Live levels from 33 monitoring stations across Bedford, Buckinghamshire, Cambridgeshire, City of Milton Keynes, Norfolk…, updated every 15 minutes.

33stations
0above typical high
5catchments
The river map shows these 5 catchments’ gauges are all on one river, so they are listed together from source to mouth.

Gauges

Monitoring stations, source to mouth

33 stations in the Upper and Bedford Ouse, Cam and Ely Ouse (Including South Level), North West Norfolk, Old Bedford including the Middle Level and Ouse catchments, one river on the river map, so one list.

StationTownLevel nowStatusTrend
BrackleyBrackley0.24 mASD 35m agoNormal—
BuckinghamBuckingham0.13 mASD 35m agoNormal—
ThornboroughThornborough0.30 mASD 1h agoLow▼
PassenhamStony Stratford2.18 mASD 50m agoNormal—
Stony StratfordStony Stratford0.14 mASD 50m agoLow—
HavershamHaversham0.24 mASD 35m agoNormal—
Newport PagnellNewport Pagnell0.20 mASD 35m agoNormal—
Newport Pagnell CemeteryNewport Pagnell0.21 mASD 35m agoNormal—
OlneyOlney0.09 mASD 1h agoNormal—
TurveyTurvey0.29 mASD 35m agoNormal—
SharnbrookSharnbrook0.18 mASD 50m agoNormal—
BromhamBromham28.98 mAOD 35m agoLow—
BedfordBedford0.27 mASD 50m agoNormal—
CardingtonBedford1.23 mASD 1h agoLow—
Castle MillBedford0.12 mASD 35m agoLow—
RoxtonRoxton0.29 mASD 35m agoNormal—
Eaton SoconEaton Socon0.03 mASD 35m agoLow—
St NeotsSt Neots0.88 mASD 50m agoNormal▲
OffordOfford Cluny0.32 mASD 1h agoLow—
Brampton SluicestructureBrampton0.15 mASD 1h agoNormal—
GodmanchesterGodmanchester0.39 mASD 1h agoNormal—
HoughtonHoughton0.29 mASD 1h agoNormal▲
HemingfordHemingford Grey0.15 mASD 1h agoNormal▼
St IvesSt Ives0.16 mASD 1h agoNormal▼
BrownshillBluntisham0.32 mASD 1h agoNormal▼
EarithEarith0.74 mASD 50m agoNormal▼
Soham LodeLittle Thetford1.61 mASD 35m agoNormal—
Sutton GaultSutton Gault0.61 mAOD 35m agoNormal—
Welney Causewayplace estimatedWelney Causeway0.55 mASD 35m agoNormal—
ElyEly0.66 mASD 35m agoNormal—
Magdalen BridgetidalWatlington3.42 mASD 6d agoold reading
FreebridgetidalKings Lynn0.51 m 35m ago—▲
King's LynntidalKing's Lynn0.62 mAOD 35m ago—▲

Also on the Great Ouse by the river map, but filed under another river name: OFFORD SLUICE AUTOMATION and OFFORD GRAFHAM INTAKE SIDELOOKER GS.

Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.

Contains OS data © Crown copyright and database rights 2026.

Gauged tributaries

Streams and rivers with a gauge whose water joins the Great Ouse above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.

18 gauged tributaries, 66 gauges

Each tributary’s water passes the gauge it joins above and every gauge below it on the Great Ouse, and none of the gauges above where it joins. For each, the gauge nearest the Great Ouse is shown; its own page lists the rest.

River Kym

Joins the Great Ouse between Eaton Socon and St Neots, no more than 6.1 km by river above St Neots. Nearest the Great Ouse: Hail Weston Low; 2 more gauges further up. Gauged streams joining it: River Til.

Bottisham Lode name from the river map

Joins the Great Ouse between Earith and Soham Lode, no more than 16.0 km by river above Soham Lode. Nearest the Great Ouse: Lode Normal.

Cottenham Lode name from the river map

Joins the Great Ouse between Earith and Soham Lode, no more than 21.4 km by river above Soham Lode. Nearest the Great Ouse: Oakington Low.

Where the Great Ouse goes

No gauge below King's Lynn is known on the river map.

Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.

Streams without a gauge

Named streams on the river map that flow into the Great Ouse and have no gauge of their own. Each has a page with what is known about it: the next gauge downstream, and any storm overflows or water-sampling points placed on it.

Storm overflows upstream

162 storm overflows are traced upstream of King's Lynn, the Great Ouse’s lowest gauge on the river map: on the Great Ouse itself, on its gauged tributaries, and on smaller streams that join above there.

  • 0 report discharging now
  • 150 not discharging
  • 12 offline or silent: 9 monitor offline, 0 status unknown, 3 no live feed

Official figures for 2025, for the overflows traced upstream of King's Lynn: 1,904 spills over 14,801 hours in total, across the 161 that have a figure. 1 has no 2025 figure.

Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the Great Ouse includes the smaller streams that join it there. Every overflow traced is listed here, each stretch in full. Back to the short lists →

Between Brackley and Buckingham5 overflows
  • Brackley Bridge Street CSO Not discharging
    Anglian Water · into Hinton Stream · 17.0 km by river above Buckingham · 2025: 0 spills, 0 h · placed on the river by its position alone
  • Brackley-New Water Recycling Centre Not discharging
    Anglian Water · into River Great Ouse · 15.2 km by river above Buckingham · 2025: 27 spills, 307 h
  • Westbury STW Not discharging
    Anglian Water · into River Great Ouse Nt · 12.0 km by river above Buckingham · 2025: 25 spills, 34 h
  • Buckingham - Stowe Avenue SSO No live feed
    Anglian Water · into River Great Ouse · 260 m by river above Buckingham · 2025: 10 spills, 2.5 h
  • Buckingham-West Street CSO Not discharging
    Anglian Water · into Great River Ouse · 160 m by river above Buckingham · 2025: 0 spills, 0 h
Between Buckingham and Thornborough3 overflows
  • Winslow STW Monitor offline
    Anglian Water · into Claydon Brook · 20.6 km by river above Thornborough · 2025: 29 spills, 329 h
  • Great Horwood STW Not discharging
    Anglian Water · into Horwood Brk/Claydon Brk River · 20.0 km by river above Thornborough · 2025: 18 spills, 152 h · placed on the river by its position alone
  • Padbury STW Not discharging
    Anglian Water · into Padbury Brook · 8.5 km by river above Thornborough · 2025: 10 spills, 139 h · placed on the river by its position alone
Between Thornborough and Passenham1 overflow
  • Deanshanger CSO Not discharging
    Anglian Water · into Great River Ouse · 1.6 km by river above Passenham · 2025: 0 spills, 0 h
Between Stony Stratford and Haversham8 overflows
  • Tiffield STW Not discharging
    Anglian Water · into Hulcote Brook Nt River Tove · 21.8 km by river above Haversham · 2025: 23 spills, 174 h · placed on the river by its position alone
  • Towcester Water Recycling Centre Not discharging
    Anglian Water · into River Tove River Great Ouse N · 20.3 km by river above Haversham · 2025: 31 spills, 504 h
  • Paulerspury - Cuttle Mill PS Not discharging
    Anglian Water · into Trib River Tove · 19.3 km by river above Haversham · 2025: 21 spills, 102 h
  • Hartwell Colmar Kennels CSO Not discharging
    Anglian Water · into Trib Of River Tove · 15.9 km by river above Haversham · 2025: 0 spills, 0 h
  • Ashton Water Recycling Centre Not discharging
    Anglian Water · into Salcey Brook · 13.2 km by river above Haversham · 2025: 6 spills, 39 h · placed on the river by its position alone
  • Potterspury - Church End CSO Not discharging
    Anglian Water · into Trib Great River Ouse · 8.5 km by river above Haversham · 2025: 2 spills, 7.3 h
  • Cosgrove CSO Monitor offline
    Anglian Water · into Dogsmouth Brook · 5.1 km by river above Haversham · 2025: 26 spills, 166 h
  • Cosgrove 23 Main Street CSO Not discharging
    Anglian Water · into River Tove · 2.9 km by river above Haversham · 2025: 0 spills, 0 h
River Tove, above Towcesterjoins the Great Ouse above Haversham6 overflows
  • Helmdon Water Recycling Centre Not discharging
    Anglian Water · into Helmdon Brook River Tove Nt · 14.7 km by river above Towcester · 2025: 25 spills, 286 h
  • Helmdon Terminal Pumping Station Not discharging
    Anglian Water · into Trib River Tove · 14.4 km by river above Towcester · 2025: 2 spills, 17 h
  • Wappenham SPS EO Not discharging
    Anglian Water · into River Tove · 9.0 km by river above Towcester · 2025: 2 spills, 3.0 h
  • Blakesley TPS Manhole 135 Monitor offline
    Anglian Water · into Trib River Tove · 7.7 km by river above Towcester · 2025: 0 spills, 0 h
  • Abthorpe Terminal Pumping Station Not discharging
    Anglian Water · into The River Tove · 6.9 km by river above Towcester · 2025: 0 spills, 0 h
  • Greens Norton Wrc Not discharging
    Anglian Water · into River Tove · 2.3 km by river above Towcester · 2025: 8 spills, 84 h
River Tove, above Cappenhamjoins the Great Ouse above Haversham4 overflows
Between Haversham and Newport Pagnell1 overflow
  • Wolverton Rail Freight CSO Not discharging
    Anglian Water · into Trib Of River Great Ouse · 10.6 km by river above Newport Pagnell · 2025: 9 spills, 4.8 h
Between Newport Pagnell Cemetery and Olney3 overflows
  • Willen Road PS Not discharging
    Anglian Water · into River Ouzel · 14.4 km by river above Olney · 2025: 13 spills, 129 h
  • Cotton Valley Water Recycling Ctr No live feed
    Anglian Water · into River Great Ouse/River Ouzel · 11.2 km by river above Olney · 2025: 2 spills, 16 h
  • Sherington Water Recycling Centre Not discharging
    Anglian Water · into River Great Ouse Nt · 9.9 km by river above Olney · 2025: 16 spills, 186 h
River Ouzel, above Leighton Buzzardjoins the Great Ouse above Olney3 overflows
  • Dunstable Water Recycling Centre Not discharging
    Anglian Water · into The Ouzel Brook · 12.2 km by river above Leighton Buzzard · 2025: 0 spills, 0 h
  • Pumping Stn At Ivinghoe Aston STW Not discharging
    Anglian Water · into Coombe Bottom Brook, R Ouzel · 8.0 km by river above Leighton Buzzard · 2025: 45 spills, 550 h · placed on the river by its position alone
  • Stanbridgeford Wrc Not discharging
    Anglian Water · into Ouzel Brook & Trib Ouzel Bk Nt · 7.6 km by river above Leighton Buzzard · 2025: 39 spills, 554 h
River Ouzel, above WATERHALL BLETCHLEY FGSjoins the Great Ouse above Olney4 overflows
  • Leighton Buzzard - Chainbridge PS Not discharging
    Anglian Water · into River Ouzel · 14.0 km by river above WATERHALL BLETCHLEY FGS · 2025: 5 spills, 7.0 h
  • Bossington Lane CSO Not discharging
    Anglian Water · into River Ouzel · 12.3 km by river above WATERHALL BLETCHLEY FGS · 2025: 1 spill, 1.3 h
  • So Leighton Buzzard Not discharging
    Anglian Water · into River Ouzel · 11.9 km by river above WATERHALL BLETCHLEY FGS · 2025: 25 spills, 21 h
  • Leighton Linslade Water Recycling C Not discharging
    Anglian Water · into River Ouzel · 10.7 km by river above WATERHALL BLETCHLEY FGS · 2025: 16 spills, 275 h
River Ouzel, above WILLEN GSjoins the Great Ouse above Olney2 overflows
  • Newton Longville-Whaddon Road PS Not discharging
    Anglian Water · into Trib Newton Longville Brook · 14.3 km by river above WILLEN GS · 2025: 21 spills, 119 h · placed on the river by its position alone
  • Selbourne Avenue Pumping Station Not discharging
    Anglian Water · into Newton Longville Brook · 12.5 km by river above WILLEN GS · 2025: 8 spills, 26 h · placed on the river by its position alone
Between Olney and Turvey2 overflows
  • Lavendon Water Recycling Centre Not discharging
    Anglian Water · into Lavendon Brook River Great Ous · 4.4 km by river above Turvey · 2025: 37 spills, 142 h · placed on the river by its position alone
  • Turvey (Cottages) STW Not discharging
    Anglian Water · into River Great Ouse Nt · 360 m by river above Turvey · 2025: 3 spills, 0.3 h
Between Turvey and Sharnbrook2 overflows
  • Odell Water Recycling Centre Not discharging
    Anglian Water · into The Great River Ouse · 3.5 km by river above Sharnbrook · 2025: 10 spills, 111 h
  • Kimbolton No live feed
    Anglian Water · into River Kym · 2.2 km by river above Sharnbrook · 2025: 1 spill, 0.5 h · placed on the river by its position alone
Between Sharnbrook and Bromham2 overflows
  • Pavenham Mill Lane Pumping Station Not discharging
    Anglian Water · into River Great Ouse · 10.8 km by river above Bromham · 2025: 17 spills, 79 h
  • Stevington EO/SSO Not discharging
    Anglian Water · into Stevington Brook · 8.7 km by river above Bromham · 2025: 1 spill, 1.3 h · placed on the river by its position alone
Between Bromham and Bedford1 overflow
  • Kempston Village Hall CSO Not discharging
    Anglian Water · into River Great Ouse · 5.8 km by river above Bedford · 2025: 0 spills, 0 h
Between Cardington and Castle Mill1 overflow
Between Castle Mill and Roxton2 overflows
  • Marston Moretaine Wrc Not discharging
    Anglian Water · into Marston Brook · 24.3 km by river above Roxton · 2025: 76 spills, 914 h · placed on the river by its position alone
  • Thurleigh PS CSO And EO Not discharging
    Anglian Water · into Ravensden Brook - R.great Ouse · 19.6 km by river above Roxton · 2025: 2 spills, 12 h · placed on the river by its position alone
River Ivel, above Biggleswadejoins the Great Ouse above Eaton Socon5 overflows
  • Letchworth-Norton Common CSO Not discharging
    Anglian Water · into The Pix Brook · 15.2 km by river above Biggleswade · 2025: 8 spills, 14 h
  • Letchworth Water Recycling Centre Not discharging
    Anglian Water · into Pix Brook, Trib River Gt Ouse · 13.4 km by river above Biggleswade · 2025: 5 spills, 24 h
  • Poppyhill Wrc Not discharging
    Anglian Water · into The River Ivel · 7.1 km by river above Biggleswade · 2025: 0 spills, 0 h
  • Poppyhill Wrc Not discharging
    Anglian Water · into The River Ivel · 7.1 km by river above Biggleswade · 2025: 5 spills, 16 h
  • Clifton Water Recycling Centre Not discharging
    Anglian Water · into Henlow Brook · 5.1 km by river above Biggleswade · 2025: 12 spills, 73 h · placed on the river by its position alone
River Ivel, above Blunhamjoins the Great Ouse above Eaton Socon8 overflows
  • Hatley St. George Not discharging
    Anglian Water · into Millbridge Brook · 20.3 km by river above Blunham · 2025: 2 spills, 13 h
  • Biggleswade Dark Lane CSO Not discharging
    Anglian Water · into The River Ivel · 8.4 km by river above Blunham · 2025: 0 spills, 0 h
  • Biggleswade - Shortmead St TPS Not discharging
    Anglian Water · into River Ivel · 7.9 km by river above Blunham · 2025: 2 spills, 4.5 h
  • Biggleswade Water Recycling Centre Monitor offline
    Anglian Water · into River Ivel · 6.1 km by river above Blunham · 2025: 0 spills, 0 h
  • Northill - Ickwell Road PS Not discharging
    Anglian Water · into Trib River Ivel · 5.9 km by river above Blunham · 2025: 4 spills, 40 h
  • Sandy - High Street CSO Not discharging
    Anglian Water · into River Ivel · 3.8 km by river above Blunham · 2025: 2 spills, 0.8 h
  • Sandy - Girtford CSO Not discharging
    Anglian Water · into Trib Of River Ivel · 2.3 km by river above Blunham · 2025: 6 spills, 17 h
  • Sandy Sewage Treatment Works Not discharging
    Anglian Water · into River Ivel · 1.3 km by river above Blunham · 2025: 7 spills, 74 h
River Hiz, above Arleseyjoins the Ivel6 overflows
River Kym, above Hail Westonjoins the Great Ouse above St Neots9 overflows
  • Riseley STW Not discharging
    Anglian Water · into Riseley Brook River Kym Nt · 17.4 km by river above Hail Weston · 2025: 5 spills, 24 h
  • Swineshead(Beds) STW Not discharging
    Anglian Water · into Trib Of Riseley Brook River Ky · 15.5 km by river above Hail Weston · 2025: 1 spill, 0.5 h · placed on the river by its position alone
  • Pertenhall STW Not discharging
    Anglian Water · into Keysoe Brook. River Kym Nt · 11.4 km by river above Hail Weston · 2025: 80 spills, 1,273 h · placed on the river by its position alone
  • Stonely - Oldford Lane TPS Not discharging
    Anglian Water · into The River Kym · 10.5 km by river above Hail Weston · 2025: 25 spills, 169 h
  • Stonely Sewage Pumping Station Not discharging
    Anglian Water · into River Kym · 10.5 km by river above Hail Weston · 2025: 5 spills, 15 h
  • Little Staughton(N) STW Not discharging
    Anglian Water · into Tributary River Kym Nt · 8.6 km by river above Hail Weston · 2025: 22 spills, 284 h
  • Kimbolton STW Not discharging
    Anglian Water · into River Kym · 7.3 km by river above Hail Weston · 2025: 33 spills, 221 h
  • Stonely Sewage Pumping Station Not discharging
    Anglian Water · into River Kym · 5.8 km by river above Hail Weston · 2025: 1 spill, 0.8 h
  • The Highway PS Not discharging
    Anglian Water · into River Kym · 5.3 km by river above Hail Weston · 2025: 28 spills, 288 h
Between St Neots and Offord3 overflows
  • Bolnhurst STW Not discharging
    Anglian Water · into Duloe Brook · 18.8 km by river above Offord · 2025: 40 spills, 611 h
  • Great Gransden TPS Not discharging
    Anglian Water · into The Gransden Brook · 18.7 km by river above Offord · 2025: 11 spills, 65 h
  • St Neots - Market Square CSO Not discharging
    Anglian Water · into River Great Ouse · 7.4 km by river above Offord · 2025: 14 spills, 1.4 h
Between Offord and Brampton Sluice1 overflow
Between Godmanchester and Houghton3 overflows
  • Brampton Water Recycling Centre Not discharging
    Anglian Water · into Brampton Brook River Great Ous · 8.0 km by river above Houghton · 2025: 7 spills, 56 h · placed on the river by its position alone
  • Hartford Road CSO Not discharging
    Anglian Water · into River Great Ouse · 4.1 km by river above Houghton · 2025: 27 spills, 30 h
  • Huntingdon Sapley Rd Combined Sewage Overflow Not discharging
    Anglian Water · into River Great Ouse · 2.6 km by river above Houghton · 2025: 0 spills, 0 h
Alconbury Brook, above Alconbury Westonjoins the Great Ouse above Houghton1 overflow
  • Great Gidding PS Not discharging
    Anglian Water · into Alconbury Brook · 12.3 km by river above Alconbury Weston · 2025: 2 spills, 4.3 h
Alconbury Brook, above Brampton Racecoursejoins the Great Ouse above Houghton2 overflows
  • Molesworth STW Monitor offline
    Anglian Water · into Ellington Brook · 18.6 km by river above Brampton Racecourse · 2025: 13 spills, 155 h
  • Spaldwick PS EO Not discharging
    Anglian Water · into Ellington Brook · 8.8 km by river above Brampton Racecourse · 2025: 4 spills, 25 h
Between Hemingford and St Ives1 overflow
Between St Ives and Brownshill2 overflows
  • Knapwell Pumping Station Not discharging
    Anglian Water · into Trib Of Connington Brook · 13.2 km by river above Brownshill · 2025: 1 spill, 0.3 h · placed on the river by its position alone
  • Elsworth - Rogers Close PS Not discharging
    Anglian Water · into Elsworth Brook · 11.2 km by river above Brownshill · 2025: 14 spills, 180 h · placed on the river by its position alone
Swavesey Drain, above Webbs Hole Sluicejoins the Great Ouse above Brownshill1 overflow
Between Earith and Soham Lode3 overflows
  • Over Fen Road Not discharging
    Anglian Water · into Dockerel Brook · 23.5 km by river above Soham Lode · 2025: 3 spills, 15 h
  • Tunbridge La PS Not discharging
    Anglian Water · into Trib Of Swaffham Bulbeck Lode · 18.1 km by river above Soham Lode · 2025: 1 spill, 2.5 h
  • Bottisham Water Recycling Centre Monitor offline
    Anglian Water · into Swaffham Bulbeck Lode · 17.9 km by river above Soham Lode · 2025: 4 spills, 2.3 h
Bottisham Lode, above Lodejoins the Great Ouse above Soham Lode1 overflow
  • Teversham STW Not discharging
    Anglian Water · into Quy Water Bottisham Lode · 5.7 km by river above Lode · 2025: 0 spills, 0 h · placed on the river by its position alone
River Rhee, above Haslingfield Burnt Milljoins the Cam2 overflows
  • Meadowcroft Way Not discharging
    Anglian Water · into Trib River Rhee · 11.8 km by river above Haslingfield Burnt Mill · 2025: 8 spills, 101 h · placed on the river by its position alone
  • Melbourn Water Recycling Centre Not discharging
    Anglian Water · into Mel Brook Leading To R Rhee · 11.6 km by river above Haslingfield Burnt Mill · 2025: 37 spills, 59 h
River Rhee, above Babrahamjoins the Cam2 overflows
River Rhee, above Dernfordjoins the Cam1 overflow
  • Great Chesterford Wrc Not discharging
    Anglian Water · into River Cam · 10.8 km by river above Dernford · 2025: 1 spill, 0.5 h
River Rhee, above Great Chesterfordjoins the Cam6 overflows
  • Wicken Bonhunt PS Not discharging
    Anglian Water · into Wicken Water · 13.2 km by river above Great Chesterford · 2025: 8 spills, 47 h
  • Saffron Walden-George Abbey Ov Not discharging
    Anglian Water · into The Slade Trib Of River Cam · 6.9 km by river above Great Chesterford · 2025: 18 spills, 11 h
  • Castle Street/High Street Not discharging
    Anglian Water · into The Slade · 6.9 km by river above Great Chesterford · 2025: 35 spills, 18 h
  • Saffron Walden Wrc Not discharging
    Anglian Water · into The Slade River · 6.0 km by river above Great Chesterford · 2025: 2 spills, 3.8 h
  • Saffron Walden Wrc Not discharging
    Anglian Water · into The Slade River · 6.0 km by river above Great Chesterford · 2025: 9 spills, 3.5 h
  • Little Chesterford Monitor offline
    Anglian Water · into R Cam · 1.7 km by river above Great Chesterford · 2025: 0 spills, 0 h
River Cam, above Cambridge Baits Bitejoins the Great Ouse above Soham Lode2 overflows
  • Cambridge Riverside 187 CSO Not discharging
    Anglian Water · into River Cam · 4.2 km by river above Cambridge Baits Bite · 2025: 0 spills, 0 h
  • Cambridge Water Recycling Centre Not discharging
    Anglian Water · into The River Cam · 750 m by river above Cambridge Baits Bite · 2025: 4 spills, 40 h
River Rhee, above Cambridge Byron's Pooljoins the Cam1 overflow
  • Sawston STW Not discharging
    Anglian Water · into Tributary River Cam Nt · 9.4 km by river above Cambridge Byron's Pool · 2025: 1 spill, 0.3 h
Between Soham Lode and Ely8 overflows
  • Dullingham Water Recycling Centre Not discharging
    Anglian Water · into Newmarket No.1 Public Drain · 32.7 km by river above Ely · 2025: 10 spills, 55 h · placed on the river by its position alone
  • Newmarket Water Recycling Centre Not discharging
    Anglian Water · into Newmarket No.1 Public Drain · 22.8 km by river above Ely · 2025: 0 spills, 0 h · placed on the river by its position alone
  • Newmarket Water Recycling Centre Not discharging
    Anglian Water · into Newmarket No.1 Public Drain · 22.8 km by river above Ely · 2025: 0 spills, 0 h · placed on the river by its position alone
  • Mill Corner TPS Not discharging
    Anglian Water · into The Soham Lode · 11.7 km by river above Ely · 2025: 5 spills, 7.8 h
  • Soham Water Recycling Centre Not discharging
    Anglian Water · into Soham Lode · 9.8 km by river above Ely · 2025: 2 spills, 15 h
  • Ely Lisle Lane Not discharging
    Anglian Water · into River Great Ouse · 1.4 km by river above Ely · 2025: 13 spills, 5.4 h
  • Ely Willow Walk TPS Monitor offline
    Anglian Water · into River Great Ouse · 1.2 km by river above Ely · 2025: 1 spill, 1.5 h
  • Ely Water Recycling Centre (Old) Monitor offline
    Anglian Water · into River Great Ouse (Nt) · 1.2 km by river above Ely · 2025: 22 spills, 219 h
Above Magdalen Bridge, below Sutton Gault and Ely9 overflows
  • Horsey Toll Pumping Station Not discharging
    Anglian Water · into River Nene (Old Course) · 55.1 km by river above Magdalen Bridge · 2025: 1 spill, 0.5 h
  • Windsor Drive CSO Not discharging
    Anglian Water · into The River Nene (Old Course) · 32.9 km by river above Magdalen Bridge · 2025: 1 spill, 4.8 h
  • Windsor Drive CSO Not discharging
    Anglian Water · into River Nene (Old Course) · 32.9 km by river above Magdalen Bridge · 2025: 23 spills, 236 h
  • March-Elliot Road CSO Not discharging
    Anglian Water · into River Nene (Old Course) · 32.9 km by river above Magdalen Bridge · 2025: 1 spill, 4.8 h
  • Wisbechroad/Police House Not discharging
    Anglian Water · into River Nene (Old Course) · 32.8 km by river above Magdalen Bridge · 2025: 12 spills, 14 h
  • Dartford Road CSO Not discharging
    Anglian Water · into The River Nene (Old Course) · 32.6 km by river above Magdalen Bridge · 2025: 16 spills, 128 h
  • Elwyn Road Combined Sewer Overflow Not discharging
    Anglian Water · into River Nene (Old Course) · 31.8 km by river above Magdalen Bridge · 2025: 7 spills, 28 h
  • Creek Road/St.johns Road CSO Not discharging
    Anglian Water · into The River Nene (Old Course) · 31.4 km by river above Magdalen Bridge · 2025: 2 spills, 11 h
  • March Water Recycling Centre Not discharging
    Anglian Water · into Twenty Foot River · 29.2 km by river above Magdalen Bridge · 2025: 27 spills, 245 h
Counter Drain, above Welches Damjoins the Great Ouse above Magdalen Bridge4 overflows
  • Oldhurst STW Not discharging
    Anglian Water · into Bury Brook Nt · 32.4 km by river above Welches Dam · 2025: 35 spills, 459 h · placed on the river by its position alone
  • St Mary's Rd Not discharging
    Anglian Water · into Ramsey High Lode · 20.9 km by river above Welches Dam · 2025: 9 spills, 58 h
  • Ramsey Water Recycling Centre Not discharging
    Anglian Water · into The Ramsey High Lode · 20.2 km by river above Welches Dam · 2025: 145 spills, 1,432 h
  • Huntingdon Rd Storm Sewage Overflow Not discharging
    Anglian Water · into Fenton Lode · 13.1 km by river above Welches Dam · 2025: 9 spills, 25 h
Between Magdalen Bridge and Freebridge5 overflows
  • Feltwell Water Recycling Centre Not discharging
    Anglian Water · into Cut-Off Channel · 40.6 km by river above Freebridge · 2025: 12 spills, 47 h
  • Downham Market The Hythe Pumping St Not discharging
    Anglian Water · into The Relief Channel · 16.0 km by river above Freebridge · 2025: 14 spills, 10 h
  • Downham Market - Railway CSO Not discharging
    Anglian Water · into Flood Relief Channel Sur W Sew · 16.0 km by river above Freebridge · 2025: 32 spills, 57 h
  • Downham Market STW Not discharging
    Anglian Water · into Trib Flood Relief Channel · 15.0 km by river above Freebridge · 2025: 13 spills, 128 h
  • Downham Market STW Not discharging
    Anglian Water · into Trib Flood Relief Channel · 15.0 km by river above Freebridge · 2025: 1 spill, 9.8 h
River Lark, above Sicklesmerejoins the Great Ouse above Freebridge2 overflows
  • Church Road PS, Whepstead Not discharging
    Anglian Water · into R Lark · 7.4 km by river above Sicklesmere · 2025: 23 spills, 206 h
  • Great Welnetham Wrc Not discharging
    Anglian Water · into The River Lark Nt · 520 m by river above Sicklesmere · 2025: 1 spill, 0.5 h
River Lark, above Templejoins the Great Ouse above Freebridge2 overflows
  • Fornham Wrc Not discharging
    Anglian Water · into River Lark · 11.7 km by river above Temple · 2025: 3 spills, 17 h
  • Pigeon Lane Pumping Station Not discharging
    Anglian Water · into The River Lark · 11.7 km by river above Temple · 2025: 3 spills, 2.5 h
River Lark, above Islehamjoins the Great Ouse above Freebridge1 overflow
River Little Ouse, above Abbey Heathjoins the Great Ouse above Freebridge5 overflows
  • Walsham Le Willows TPS Not discharging
    Anglian Water · into Stowlangtoft Stream · 37.6 km by river above Abbey Heath · 2025: 6 spills, 25 h · placed on the river by its position alone
  • Elmswell Water Recycling Centre Not discharging
    Anglian Water · into River Sapiston · 36.8 km by river above Abbey Heath · 2025: 38 spills, 375 h · placed on the river by its position alone
  • Thetford - Hayling Path PS Not discharging
    Anglian Water · into River Little Ouse · 2.6 km by river above Abbey Heath · 2025: 1 spill, 0.3 h
  • Thetford STW Not discharging
    Anglian Water · into River Little Ouse · 1.3 km by river above Abbey Heath · 2025: 0 spills, 0 h
  • Thetford STW Not discharging
    Anglian Water · into River Little Ouse · 1.3 km by river above Abbey Heath · 2025: 0 spills, 0 h
River Little Ouse, above Little Ousejoins the Great Ouse above Freebridge1 overflow
  • Brandon Wrc Not discharging
    Anglian Water · into River Little Ouse · 5.0 km by river above Little Ouse · 2025: 3 spills, 15 h
River Thet, above Redbridgejoins the Little Ouse4 overflows
  • Attleborough Not discharging
    Anglian Water · into Upper River Crouch · 8.8 km by river above Redbridge · 2025: 0 spills, 0 h · placed on the river by its position alone
  • Attleborough Norwich Road PS Not discharging
    Anglian Water · into Culverted Tributary R Thet · 8.8 km by river above Redbridge · 2025: 1 spill, 0.3 h
  • Carvers La Terminal SPS Not discharging
    Anglian Water · into Tributary River Thet · 7.0 km by river above Redbridge · 2025: 2 spills, 3.5 h
  • Attleborough Wrc Not discharging
    Anglian Water · into Tributary River Thet · 5.6 km by river above Redbridge · 2025: 0 spills, 0 h
River Wissey, above Wissey Sluicejoins the Great Ouse above Freebridge3 overflows
  • Pickenham Road TPS Not discharging
    Anglian Water · into River Wissey · 37.5 km by river above Wissey Sluice · 2025: 1 spill, 6.0 h
  • Watton Water Recycling Centre Not discharging
    Anglian Water · into The Watton Brook · 34.6 km by river above Wissey Sluice · 2025: 3 spills, 27 h
  • Swaffham STW Not discharging
    Anglian Water · into The River Wissey · 32.7 km by river above Wissey Sluice · 2025: 27 spills, 62 h
Between Freebridge and King's Lynn5 overflows
  • Grimston Water Recycling Centre Not discharging
    Anglian Water · into Watery Lane Drain · 12.9 km by river above King's Lynn · 2025: 9 spills, 100 h · placed on the river by its position alone
  • Kings Lynn-Highgate CSO Not discharging
    Anglian Water · into Gaywood River · 1.7 km by river above King's Lynn · 2025: 1 spill, 0.3 h
  • Millfleet PS Not discharging
    Anglian Water · into River Gaywood · 650 m by river above King's Lynn · 2025: 3 spills, 2.3 h
  • Kings Lynn - Millfleet So1 CSO Not discharging
    Anglian Water · into Culverted Section Of Gaywood R · 640 m by river above King's Lynn · 2025: 20 spills, 20 h
  • Kings Lynn-Millfleet So3 CSO Not discharging
    Anglian Water · into Culverted Section Of Gaywood R · 530 m by river above King's Lynn · 2025: 32 spills, 56 h
Above E249643 overflows
  • Twyford - School Lane TPS Not discharging
    Anglian Water · into Trib Of Padbury Brook · 17.0 km by river above E24964 · 2025: 6 spills, 2.5 h
  • Steeple Claydon TPS Not discharging
    Anglian Water · into Padbury Brook · 13.2 km by river above E24964 · 2025: 0 spills, 0 h
  • Buckingham Hunter Street CSO Not discharging
    Anglian Water · into River Great Ouse · 7.0 km by river above E24964 · 2025: 0 spills, 0 h

Near these gauges, connection not known

Within 3 km of one of the Great Ouse’s gauges in a straight line, but the river map cannot say whether their water reaches it.

  • Turvey So Not discharging
    Anglian Water · into Ouse (Newport Pagnell To Roxton) · 220 m from Turvey in a straight line · several watercourses close by, nothing to choose between them · 2025: 5 spills, 18 h
  • Kings Lynn-Millfleet So2 CSO Not discharging
    Anglian Water · into Culverted Section Of Gaywood R · 250 m from King's Lynn in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 46 spills, 92 h
  • So At Millfleet Not discharging
    Anglian Water · into Culverted Section Of Gaywood · 250 m from King's Lynn in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 33 spills, 23 h
  • King's Lynn Purfleet Quay PS Not discharging shellfish water
    Anglian Water · into Great Ouse (Tidal River) · 270 m from King's Lynn in a straight line · discharges to the sea, an estuary or tidal water · 2025: 25 spills, 22 h
  • Stony Stratford Not discharging
    Anglian Water · into River Ouse · 420 m from Stony Stratford in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 6 spills, 31 h
  • St Ives The Quay Pumping Station Not discharging
    Anglian Water · into River Ouse · 580 m from St Ives in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 0 spills, 0 h
  • King's Lynn Tunnel PS Not discharging
    Anglian Water · into Tidal River Great Ouse · 610 m from Freebridge in a straight line · discharges to the sea, an estuary or tidal water · 2025: 75 spills, 178 h
  • Sewers At Village Road Not discharging
    Anglian Water · into Trib River Great Ouse · 630 m from Bromham in a straight line · no mapped watercourse close enough to be sure · 2025: 4 spills, 15 h
  • St Neots STW Not discharging
    Anglian Water · into River Ouse · 630 m from St Neots in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 6 spills, 1.6 h
  • Buckingham Town PS Not discharging
    Anglian Water · into River Ouse · 640 m from Buckingham in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 0 spills, 0 h
  • Kings Lynn - Ferry Street CSO Not discharging
    Anglian Water · into Tidal River Great Ouse · 710 m from King's Lynn in a straight line · discharges to the sea, an estuary or tidal water · 2025: 2 spills, 1.0 h
  • Kings Lynn Pagestair Lane CSO Not discharging
    Anglian Water · into Tidal River Great Ouse · 710 m from King's Lynn in a straight line · discharges to the sea, an estuary or tidal water · 2025: 1 spill, 0.3 h
  • Kings Lynn Tuesday Market Place CSO Not discharging
    Anglian Water · into Tidal River Great Ouse · 710 m from King's Lynn in a straight line · discharges to the sea, an estuary or tidal water · 2025: 2 spills, 0.5 h
  • Kings Lynn Water Lane CSO Not discharging
    Anglian Water · into Tidal River Great Ouse · 710 m from King's Lynn in a straight line · discharges to the sea, an estuary or tidal water · 2025: 3 spills, 1.0 h
  • Main St PS Little Thetford Monitor offline
    Anglian Water · into Thetford Catchwater · 740 m from Soham Lode in a straight line · no mapped watercourse close enough to be sure · 2025: 4 spills, 35 h

38 more near these gauges whose connection is not known.

2 other overflows within 3 km of these gauges are placed below the Great Ouse’s lowest gauge or on another river, so not listed.

A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →

Live status: © Anglian Water storm overflow activity data, licensed under CC BY 4.0. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0.

Water samples

Dated samples taken by the Environment Agency, not live readings. Results are published days to months after the sample is taken, and many points are sampled only a few times a year, or have not been sampled for years.

375 sampling points on the River Great Ouse and the streams that join it above King's Lynn. 206 have a sample from the last 12 months; 239 have any sample banked.

Sampled most recently, anywhere on the Great Ouse and its streams:

Where, from the source downSampling pointsNewest sample
Above Brackley1 point0 samplednone banked
River Tove and its streamsjoins the Great Ouse above Haversham9 points6 sampled17 Sep 2026
Above Buckingham7 points6 sampled7 Sep 2026
River Ouzel and its streamsjoins the Great Ouse above Olney16 points8 sampled18 Sep 2026
Above THORNBOROUGH MILL SLUICE AUTOMATION11 points7 sampled9 Sep 2026
Above Passenham9 points6 sampled17 Sep 2026
Above Haversham12 points10 sampled7 Sep 2026
Above Broughtonan unnamed watercourse · joins the Great Ouse above Olney2 points4 Dec 2025
Above Newport Pagnell1 point8 Sep 2026
Above Newport Pagnell Cemetery1 point18 May 2026
Above Olney6 points7 Sep 2026
Above Turvey1 point18 Mar 2026
Above Sharnbrook4 points1 sampled5 Aug 2026
Above Bromham1 point10 Sep 2026
River Ivel and its streamsjoins the Great Ouse above Eaton Socon23 points15 sampled21 Sep 2026
Above Bedford2 points4 Sep 2026
Above Cardington1 point21 May 2026
Above Roxton6 points4 sampled10 Sep 2026
River Cam and its streamsjoins the Great Ouse above Soham Lode50 points36 sampled1 Oct 2026
Above Hail WestonRiver Kym · joins the Great Ouse above St Neots4 points3 sampled1 Sep 2026
Above Eaton Socon5 points11 Sep 2026
River Little Ouse and its streamsjoins the Great Ouse above Freebridge20 points13 sampled17 Sep 2026
Above St Neots2 points1 sampled11 Sep 2026
Alconbury Brook and its streamsjoins the Great Ouse above Houghton11 points8 sampled1 Oct 2026
River Lark and its streamsjoins the Great Ouse above Freebridge15 points13 sampled14 Sep 2026
Above Offord4 points3 sampled3 Sep 2026
Above Brampton Sluice8 points0 samplednone banked
Above Godmanchester1 point3 Sep 2026
Above Houghton3 points2 sampled2 Sep 2026
Above Hemingford1 point0 samplednone banked
Above St Ives2 points1 sampled8 Jul 2026
Above LodeBottisham Lode · joins the Great Ouse above Soham Lode2 points4 Sep 2026
Above Brownshill3 points2 sampled3 Sep 2026
Above Soham Lode20 points11 sampled7 Sep 2026
Above Sutton Gault3 points2 sampled2 Sep 2026
Above Ely8 points6 sampled8 Sep 2026
Above Welches DamCounter Drain · joins the Great Ouse above Magdalen Bridge11 points4 sampled1 Oct 2026
Above Wissey SluiceRiver Wissey · joins the Great Ouse above Freebridge27 points16 sampled1 Oct 2026
River Nar and its streamsjoins the Great Ouse above King's Lynn10 points9 sampled1 Oct 2026
Above Magdalen Bridge22 points7 sampled14 Sep 2026
Above Freebridge14 points6 sampled1 Oct 2026
Above King's Lynn16 points10 sampled17 Sep 2026

England's samples only. Each count opens the list of those points, nearest first, with the date of each one’s latest sample (the gauge’s “Upstream of here” list).

FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.

Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.

Contains OS data © Crown copyright and database rights 2026.