FloodRadar
Log inCreate free account

Explore FloodRadar

Explore the map
Weather
Why ?
Home › Rivers › River Wissey

River Wissey water levels

Live levels from 1 monitoring station across Norfolk, updated every 15 minutes.

1stations
0above typical high

Gauges

Monitoring stations, source to mouth

StationTownLevel nowStatusTrend
Wissey SluicestructureStoke Ferry1.65 mASD 51m agoNormal—

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 Wissey above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.

No gauged tributary joins the Wissey above Wissey Sluice on the river map. Streams without a gauge are not counted here.

Where the Wissey goes

Below Wissey Sluice, its water next reaches Freebridge, a gauge on River Great Ouse, 34.8 km by river downstream.

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 Wissey 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

3 storm overflows are traced upstream of Wissey Sluice, the Wissey’s lowest gauge on the river map: on the Wissey itself, on its gauged tributaries, and on smaller streams that join above there.

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

Official figures for 2025, for the overflows traced upstream of Wissey Sluice: 31 spills over 96 hours in total, across all 3.

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 Wissey includes the smaller streams that join it there.

Above Wissey Sluice, the Wissey’s highest gauge3 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

Near these gauges, connection not known

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

  • Stoke Ferry STW Not discharging
    Anglian Water · into Tributary Red Gate Drain · 750 m from Wissey Sluice in a straight line · no mapped watercourse close enough to be sure · 2025: 0 spills, 0 h

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.

29 sampling points on the River Wissey and the streams that join it above Wissey Sluice, and below it. 14 have a sample from the last 12 months; 17 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.

Above Wissey Sluice River Wissey 27 points, 16 with samples
Sampling pointWatercourse (map)Above the gaugeLast sampleLatest results (river water)
Watton Brook Clipbush Lane Bridge Scoultonunnamed stream44 km30 Jun 2026 · 3 months agoOxygen 46.1%Temp 18.3 °CpH 7.83Ammonia 0.34 mg/l
River Wissey Bradenham FordRiver Wissey42 km14 May 2026 · 5 months agoOxygen 86.4%Temp 11 °CpH 7.92Ammonia below 0.03 mg/l
Watton Brook Bridge Street Bridge Carbrookeunnamed stream42 kmLast sampled 8 Jan 2018, before the imported period
River Wissey Halfmile Drift BradenhamRiver Wissey41 kmLast sampled 18 Jun 2013, before the imported period
Watton Brook Drury Lane Road Bridge CarbrookeWatton Brook41 km11 Sep 2026 · 27 days agoOxygen 74.1%Temp 15.8 °CpH 7.92Ammonia 0.047 mg/l
River Wissey Necton Common Road Bridge (Replaced By 48M45)River Wissey40 kmLast sampled 16 Aug 2004, before the imported period
River Wissey Browns Lane Road BridgeRiver Wissey38 kmLast sampled 24 Mar 2022, before the imported period
Watton Brook B1077 Road Bridge SwaffhamWatton Brook37 km7 Mar 2025 · 19 months agoOxygen 100.7%Temp 7.8 °CpH 8.23Ammonia 0.059 mg/l
River Wissey N Pickenham Road Bridge Houghton LaneRiver Wissey35 km4 Mar 2024 · 2.6 years agoOxygen 96%Temp 5.6 °CpH 7.63Ammonia 0.078 mg/l
Watton Brook Little Cressingham Road Bridge PilgrimsWatton Brook33 km8 Sep 2026 · 30 days agoOxygen 55.3%Temp 17 °CpH 7.72Ammonia below 0.03 mg/l
Pingo Trail Nature Reserveunnamed stream32 km28 Sep 2026 · 10 days agoOxygen 93.7% Apr 2026Temp 11.4 °C Apr 2026pH 8.09 Apr 2026Ammonia below 0.03 mg/l Apr 2026
Sturton Carr Thompson Track Bridgeunnamed stream31 km13 May 2026 · 5 months agoOxygen 87.3%Temp 8.4 °CpH 8.1Ammonia 0.063 mg/l
Watton Brook Road Bridge near Hopton HouseWatton Brook31 kmLast sampled 8 Mar 2022, before the imported period
Tributary of Thompson Stream upstream of Thompson Waterunnamed stream29 kmLast sampled 24 Jan 2020, before the imported period
Thompson Stream Inlet to Thompson Waterunnamed stream29 kmLast sampled 5 Jul 2022, before the imported period
Thompson Stream Thompson Water Outlet Poolunnamed stream28 kmLast sampled 24 Jan 2020, before the imported period
Watton Brook Linghills Farm Bridge HilboroughWatton Brook27 kmLast sampled 15 Jun 2004, before the imported period
River Wissey Linghills Farm Bridge and FordRiver Wissey27 km7 Sep 2026 · 31 days agoOxygen 75.4%Temp 15.9 °CpH 7.97Ammonia below 0.03 mg/l
River Wissey Bodney Road BridgeRiver Wissey24 km7 Sep 2026 · 31 days agoOxygen 77.5%Temp 16.3 °CpH 8.04 Mar 2026Ammonia below 0.03 mg/l
River Wissey Ickburgh Road BridgeRiver Wissey16 km15 Sep 2026 · 23 days agoOxygen 89.6%Temp 16.8 °CpH 7.91Ammonia below 0.03 mg/l
Tributary of River Wissey A1065 upstream of confluence Mundfordunnamed stream15 km15 Sep 2026 · 23 days agoOxygen 20.8% Jul 2026Temp 18.2 °C Jul 2026pH 7.16 Jul 2026Ammonia 0.18 mg/l Jul 2026
River Gadder Watermill Lane GooderstoneRiver Gadder9.8 kmLast sampled 26 Sep 2013, before the imported period
River Wissey Didlington Lodge Road Bridge NorthwolRiver Wissey9.7 km15 Sep 2026 · 23 days agoOxygen 83.2%Temp 17.8 °CpH 7.94Ammonia below 0.03 mg/l
River Gadder Clarkes Lane GooderstoneRiver Gadder8.5 kmLast sampled 26 Sep 2013, before the imported period
Upstream of Foulden sewage treatment works - Foulden Streamunnamed stream7.4 km9 Dec 2024 · 22 months agoOxygen 79.4%Temp 7.9 °CpH 7.71Ammonia 0.03 mg/l
River Gadder Oxborough BridgeRiver Gadder6.3 km1 Oct 2026 · 7 days agoOxygen 53.2% Jul 2026Temp 18.5 °C Jul 2026pH 7.78 Jul 2026Ammonia 0.04 mg/l Jul 2026
River Wissey A134 Road Bridge Stoke FerryRiver Wissey1.0 km2 Sep 2026 · 36 days agoOxygen 91.9%Temp 17.2 °CpH 8.11 May 2026Ammonia below 0.03 mg/l
Below Wissey Sluice 2 points, 1 with samples
Sampling pointWatercourse (map)Below the gaugeLast sampleLatest results (river water)
River Wissey Five Mile Road Bridge WissingtonRiver Wissey5.4 kmLast sampled 31 Mar 2014, before the imported period
River Wissey A10 Road Bridge HilgayRiver Wissey11 km11 May 2026 · 5 months agoOxygen 99.5%Temp 14.5 °CpH 8.11Ammonia below 0.03 mg/l

Distances are along the river to the gauge named. England's samples only.

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.

Wave tracker for this river → Norfolk rivers → All UK rivers