114 storm overflows are traced upstream of Orton Sluice, the Nene’s lowest gauge on the river map: on the Nene itself, on its gauged tributaries, and on smaller streams that join above there.
- 0 report discharging now
- 105 not discharging
- 9 offline or silent: 3 monitor offline, 0 status unknown, 6 no live feed
Official figures for 2025, for the overflows traced upstream of Orton Sluice: 1,255 spills over 7,048 hours in total, across the 113 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 Nene includes the smaller streams that join it there. Where a stretch or a tributary has more than 4, the 3 discharging now or nearest its gauge are listed, the rest are counted, and every one is in that gauge’s “Upstream of here” list. Show every overflow in every stretch →
Above Dodford, the Nene’s highest gauge1 overflow
- Long Buckby Water Recycling Centre Not discharging
Anglian Water · into Whilton Branch R.nene · 7.4 km by river above Dodford · 2025: 59 spills, 432 h · placed on the river by its position alone
Above Brixworth, the Nene’s highest gauge2 overflows
Between Dodford and Kislingbury6 overflows
- Bugbrooke Wrc Not discharging
Anglian Water · into Bugbrooke Brook · 5.9 km by river above Kislingbury · 2025: 21 spills, 68 h - Kislingbury Baptist Chapel SSO Not discharging
Anglian Water · into Trib River Nene · 840 m by river above Kislingbury · 2025: 14 spills, 38 h - Kislingbury Pumping Station Not discharging
Anglian Water · into River Nene · 200 m by river above Kislingbury · 2025: 6 spills, 16 h
and 3 more: show all 6 overflows on this stretch → All above Kislingbury, nearest first →
Bugbrooke Brook, above Bugbrookejoins the Nene above Kislingbury1 overflow
- Bugbrooke SSO Ace Lane Not discharging
Anglian Water · into Bugbrooke Brook · 170 m by river above Bugbrooke · 2025: 4 spills, 12 h
Between Brixworth and Geldharts Mill3 overflows
- Walgrave (Ex STW) Pumping Station Not discharging
Anglian Water · into Walgrave Brook · 13.5 km by river above Geldharts Mill · 2025: 29 spills, 320 h · placed on the river by its position alone - Guilsborough SSO Not discharging
Anglian Water · into Trib Of Spratton Brook · 12.1 km by river above Geldharts Mill · 2025: 1 spill, 0.3 h - Spratton TPS No live feed
Anglian Water · into Trib Of R.nene Brixworth Brnch · 8.0 km by river above Geldharts Mill · 2025: 1 spill, 0.8 h
Wootton Brook, above Wootton Parkjoins the Nene above Duston Mill2 overflows
- Hackleton SPS Not discharging
Anglian Water · into Wootton Brook · 10.7 km by river above Wootton Park · 2025: 15 spills, 228 h - Wootton - Berry Lane CSO Not discharging
Anglian Water · into Wootton Brook · 4.7 km by river above Wootton Park · 2025: 8 spills, 2.0 h
Between Geldharts Mill and St Andrews Bypass3 overflows
- CSO And EO At Northampton Not discharging
Anglian Water · into The River Nene · 3.5 km by river above St Andrews Bypass · 2025: 0 spills, 0 h - Northampton Mill Lane CSO Not discharging
Anglian Water · into River Nene · 1.2 km by river above St Andrews Bypass · 2025: 7 spills, 2.6 h - Heathfield Way SSO Not discharging
Anglian Water · into Trib River Nene · 1.0 km by river above St Andrews Bypass · 2025: 6 spills, 5.0 h
Between South Bridge and Bedford Road Sluice6 overflows
- Northampton Bridge Street CSO Not discharging
Anglian Water · into River Nene · 1.9 km by river above Bedford Road Sluice · 2025: 5 spills, 1.7 h - Northampton Bedford Road CSO Not discharging
Anglian Water · into River Nene · 1.7 km by river above Bedford Road Sluice · 2025: 7 spills, 0.8 h - Bedford Road SPS Not discharging
Anglian Water · into River Nene · 1.1 km by river above Bedford Road Sluice · 2025: 0 spills, 0 h
and 3 more: show all 6 overflows on this stretch → All above Bedford Road Sluice, nearest first →
Between Nene Valley and Cogenhoe1 overflow
- Great Billing Wrc Not discharging
Anglian Water · into Tributary Of The Ecton Brook · 470 m by river above Cogenhoe · 2025: 0 spills, 0 h
Between Cogenhoe and Islip Sluice40 overflows
- CSO And EO At Woodford Not discharging
Anglian Water · into The River Nene · 5.2 km by river above Islip Sluice · 2025: 18 spills, 85 h - Denford PS Not discharging
Anglian Water · into River Nene · 2.6 km by river above Islip Sluice · 2025: 5 spills, 36 h - Islip Pumping Station Not discharging
Anglian Water · into River Nene · 620 m by river above Islip Sluice · 2025: 0 spills, 0 h
and 37 more: show all 40 overflows on this stretch → All above Islip Sluice, nearest first →
River Ise, and the streams that join itjoins the Nene above Islip Sluice18 overflows
- Pytchley STW Not discharging
Anglian Water · into The Pytchley Brook Trib Of Ise · 7.1 km by river above Harrowden · 2025: 5 spills, 0.4 h - Lt Harrowden SSO (6503) Not discharging
Anglian Water · into Trib River Nene · 6.9 km by river above Harrowden · 2025: 3 spills, 1.0 h · placed on the river by its position alone - Burton Latimer Higham Road CSO Not discharging
Anglian Water · into Trib River Ise · 3.4 km by river above Harrowden · 2025: 22 spills, 24 h
and 15 more: show all 18 overflows on the Ise and the streams that join it → All above GREAT HARROWDEN GS, nearest first →
Between Islip Sluice and Lilford2 overflows
- Thrapston Terminal Pumping Station Not discharging
Anglian Water · into Holland Brook · 9.4 km by river above Lilford · 2025: 3 spills, 16 h · placed on the river by its position alone - Islip Water Recycling Centre Not discharging
Anglian Water · into The River Nene · 8.8 km by river above Lilford · 2025: 12 spills, 120 h
Between Wansford and Orton Sluice4 overflows
- Wittering STW Not discharging
Anglian Water · into Wittering Brook · 17.3 km by river above Orton Sluice · 2025: 4 spills, 29 h · placed on the river by its position alone - Stibbington Water Recycling Centre Not discharging
Anglian Water · into River Nene And Trib Of Nene · 11.3 km by river above Orton Sluice · 2025: 0 spills, 0 h - Alwalton Mill Lane Pumping Station Not discharging
Anglian Water · into Trib River Nene · 5.8 km by river above Orton Sluice · 2025: 3 spills, 1.8 h - Milton Ferry PS Not discharging
Anglian Water · into R Nene · 2.9 km by river above Orton Sluice · 2025: 7 spills, 31 h
Willow Brook, and the streams that join itjoins the Nene above WANSFORD A47 NO1 WITS4 overflows
- Corby STW Monitor offline
Anglian Water · into Willow Brook (Southern Stream) · 1.2 km by river above Weldon Flood Storage Reservoir · 2025: 35 spills, 489 h - Kingscliffe TPS Not discharging
Anglian Water · into Willow Brook · 9.4 km by river above Fotheringhay · 2025: 0 spills, 0 h - Kings Cliffe STW Not discharging
Anglian Water · into Willow Brook River Nene Nt · 9.1 km by river above Fotheringhay · 2025: 37 spills, 89 h - Apethorpe SPS Not discharging
Anglian Water · into Willow Brook · 5.9 km by river above Fotheringhay · 2025: 2 spills, 1.0 h
Above WANSFORD A47 NO1 WITS11 overflows
- Oundle Water Recycling Centre Not discharging
Anglian Water · into River Nene · 18.1 km by river above WANSFORD A47 NO1 WITS · 2025: 1 spill, 0.2 h - Elton Wrc Not discharging
Anglian Water · into River Nene · 6.7 km by river above WANSFORD A47 NO1 WITS · 2025: 5 spills, 62 h - Wansford PS Not discharging
Anglian Water · into R Nene · 480 m by river above WANSFORD A47 NO1 WITS · 2025: 13 spills, 155 h
and 8 more: show all 11 overflows on this stretch → All above WANSFORD A47 NO1 WITS, nearest first →
Above SOUTH BRIDGE GS NORTHAMPTON WITS6 overflows
- Grafton Street SSO Not discharging
Anglian Water · into Trib River Nene · 1.8 km by river above SOUTH BRIDGE GS NORTHAMPTON WITS · 2025: 1 spill, 0.3 h - Northampton Spencer Bridge Road CSO Not discharging
Anglian Water · into River Nene · 1.7 km by river above SOUTH BRIDGE GS NORTHAMPTON WITS · 2025: 6 spills, 3.7 h - Northampton-Richmond Terrace 1sp Not discharging
Anglian Water · into The River Nene · 1.4 km by river above SOUTH BRIDGE GS NORTHAMPTON WITS · 2025: 0 spills, 0 h
and 3 more: show all 6 overflows on this stretch → All above SOUTH BRIDGE GS NORTHAMPTON WITS, nearest first →
Above Weedon4 overflows
- Newnham(Northants) Wrc Not discharging
Anglian Water · into Kislingbury Branch R.nene Nt · 5.0 km by river above Weedon · 2025: 76 spills, 1,099 h · placed on the river by its position alone - Everdon STW Monitor offline
Anglian Water · into Everden Brook River Nene · 4.1 km by river above Weedon · 2025: 62 spills, 531 h - Weedon Pumping Station Not discharging
Anglian Water · into River Nene · 320 m by river above Weedon · 2025: 16 spills, 36 h - Weedon Pumping Station Not discharging
Anglian Water · into River Nene · 320 m by river above Weedon · 2025: 5 spills, 48 h
Near these gauges, connection not known
Within 3 km of one of the Nene’s gauges in a straight line, but the river map cannot say whether their water reaches it.
- Peterborough-Orton Mere PS Not discharging
Anglian Water · into Trib River Nene · 30 m from Orton Sluice in a straight line · too close to Orton Sluice to say which side · 2025: 1 spill, 12 h - Northampton, Blue Lagoon CSO No live feed
Anglian Water · into Brampton Branch - Lower · 350 m from Duston Mill in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 38 spills, 38 h - Cogenhoe Mill Lane Mh1001 Mm Not discharging
Anglian Water · into Nene - Conf Brampton Branch To Conf Ise · 500 m from Cogenhoe in a straight line · no mapped watercourse close enough to be sure · 2025: 1 spill, 0.5 h
17 more near these gauges whose connection is not known.
2 other overflows within 3 km of these gauges are placed below the Nene’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.