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Live levels from 10 monitoring stations across Hampshire, Warwickshire, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Easton | 0.59 mASD 30m ago | Normal | ||
| 4.6 km by river | ||||
| Durngate | 37.11 mAOD 30m ago | Normal | ||
| 370 m by river | ||||
| City Mill | 0.34 mASD 30m ago | Low | ||
| 360 m by river | ||||
| Wharf Mill | 0.36 mASD 30m ago | Normal | ||
| downstream, distance by river not measured | ||||
| Highbridge weirstructure | 0.28 mASD 45m ago | Normal | ||
| 1.7 km by river | ||||
| Allbrook weirstructure | 0.31 mASD 30m ago | Normal | ||
| 1.8 km by river | ||||
| Stoke Lockstructure | 12.91 mAOD 30m ago | Normal | ||
| 310 m by river | ||||
| Bishopstoke | 0.59 mASD 30m ago | Normal | ||
| 6.5 km by river | ||||
| Riverside Park | 1.36 mASD 10h ago | Low | ||
| Station | Level now | Status |
|---|---|---|
| Southamstructureplace estimated | 0.10 mASD 45m ago | Normal |
Also on the Itchen by the river map, but filed under another river name: SEWARDS BRIDGE GS, EASTON USGS and Mansbridge USGS.
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.
Streams and rivers with a gauge whose water joins the Itchen above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Joins the Itchen above EASTON USGS, no more than 7.5 km by river above EASTON USGS.
| BOROUGH BRIDGE GS | 0.34 m3/s 45m ago | — |
| 100 m by river | ||
| Borough Bridge weirstructure | 0.15 mASD 45m ago | Normal |
Its water passes EASTON USGS.
Joins the Itchen above EASTON USGS, no more than 7.8 km by river above EASTON USGS.
| Sewards Bridge | 0.13 mASD 45m ago | Normal |
Its water passes EASTON USGS.
Joins the Itchen above EASTON USGS, no more than 7.9 km by river above EASTON USGS.
| DROVE LANE SIDE GS | 0.65 m3/s 45m ago | — |
| 80 m by river | ||
| DROVE LANE MAIN GS | 0.61 m3/s 30m ago | — |
| same site | ||
| Drove Lane | 0.24 mASD 30m ago | Normal |
| same site | ||
| DROVE LANE COMBINED FLOW | 1.27 m3/s 45m ago | — |
| downstream, distance by river not measured | ||
| Drove Lane 1.5 | 0.34 mASD 45m ago | Normal |
Its water passes EASTON USGS.
Below Riverside Park, its water next reaches Woolston, 7.7 km by river downstream.
No gauged tributary joins the Itchen above Southam on the river map. Streams without a gauge are not counted here.
Below Southam, its water next reaches Eathorpe, a gauge on River Leam, 15.4 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.
3 storm overflows are traced upstream of Riverside Park, the Itchen’s lowest gauge on the river map: on the Itchen itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Riverside Park: 37 spills over 473 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 Itchen includes the smaller streams that join it there.
Within 3 km of one of the Itchen’s gauges in a straight line, but the river map cannot say whether their water reaches it.
1 more near these gauges whose connection is not known.
3 other overflows within 3 km of these gauges are placed below the Itchen’s lowest gauge or on another river, so not listed.
4 storm overflows are traced upstream of Southam, the Itchen’s lowest gauge on the river map: on the Itchen itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Southam: 54 spills over 357 hours in total, across all 4.
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 Itchen includes the smaller streams that join it there.
Within 3 km of one of the Itchen’s gauges in a straight line, but the river map cannot say whether their water reaches it.
2 other overflows within 3 km of these gauges are placed below the Itchen’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: © Southern Water storm overflow activity data, licensed under CC BY 4.0. Live status: © Severn Trent 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.
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.
12 sampling points on the River Itchen and the streams that join it above Riverside Park. 9 have a sample from the last 12 months; 10 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Itchen at Highbridge | River Itchen | 1.7 km | Last sampled 7 Mar 2014, before the imported period | |
| Bow Lake Stoke Common | Bow Lake | 1.1 km | 9 Sep 2026 · 29 days ago | Oxygen 102.4% Apr 2026Temp 16.2 °CpH 8.06 Apr 2026Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Cheriton Stream Tichborne Park Wooden Bridge | River Itchen | 1.7 km | 4 Dec 2024 · 22 months ago | Oxygen 90.3%Temp 8.5 °CpH 7.78Ammonia 0.0093 mg/l |
| Itchen downstream of Alresford Bypass | River Itchen | 0.5 km | Last sampled 23 Nov 2012, before the imported period | |
| Titchbourne Sewards B | River Itchen | 0.1 km | 9 Sep 2026 · 29 days ago | Oxygen 98.8%Temp 13.3 °CpH 7.74Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Itchen Bishopstoke | River Itchen | 0.4 km | 9 Sep 2026 · 29 days ago | Oxygen 109.4%Temp 14.2 °CpH 8.07Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Alre Drove Lane | River Alre | 7.9 km | 5 Aug 2026 · 2 months ago | Oxygen 102.7%Temp 14.5 °CpH 7.98Ammonia 0.032 mg/l Jul 2026 |
| Candover Borough Bridge | Candover Stream | 7.4 km | 2 Sep 2026 · 36 days ago | Oxygen 101.8%Temp 14.3 °CpH 7.9Ammonia below 0.03 mg/l |
| River Itchen at Itchen Stoke | River Itchen | 5.5 km | 11 Aug 2026 · 58 days ago | Oxygen 108.2%Temp 16.7 °CpH 8.03Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Itchen downstream of Eastleigh sewage treatment works | River Itchen | 4.3 km | 2 Sep 2026 · 36 days ago | Oxygen 100.4%Temp 15.4 °CpH 8.27Ammonia below 0.03 mg/l |
| River Itchen Gaters Mill | River Itchen | 0.7 km | 4 Aug 2026 · 2 months ago | Oxygen 102.5%Temp 19.2 °CpH 8.29Ammonia below 0.03 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Itchen Easton | River Itchen | 0.1 km | 5 Aug 2026 · 2 months ago | Oxygen 118.3%Temp 16.5 °CpH 8.16Ammonia below 0.03 mg/l Jul 2026 |
10 sampling points on the River Itchen and the streams that join it above Southam, and below it. 5 have a sample from the last 12 months; 8 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Itchen River Knightcote | unnamed stream | 11 km | Last sampled 3 Jun 2009, before the imported period | |
| Tributary of Stowe at Napton Fields | unnamed stream | 5.6 km | 9 Dec 2025 · 10 months ago | Oxygen 94.1%Temp 10.4 °CpH 7.8Ammonia below 0.03 mg/l |
| River Itchen Deppers Bridge | River Itchen | 4.5 km | 18 Dec 2024 · 22 months ago | Oxygen 91.8%Temp 9.6 °CpH 8Ammonia 0.036 mg/l |
| Stowe River Browns Bridge Southam (A423) | River Stowe | 2.7 km | Last sampled 8 Dec 2021, before the imported period | |
| Itchen River A425 Thorpe Bridge Ufton | River Itchen | 1.4 km | 30 Jan 2024 · 2.7 years ago | pH 8.09 |
| Itchen River Ford Farm | River Itchen | 0.1 km | 4 Jun 2026 · 4 months ago | Oxygen 71.4%Temp 14.8 °CpH 7.69Ammonia 0.049 mg/l |
| Sampling point | Watercourse (map) | Below the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| River Itchen - downstream of Itchen Bank sewage treatment works | River Itchen | 1.3 km | 13 Jul 2026 · 3 months ago | pH 7.59 |
| River Itchen, Bascote | River Itchen | 1.7 km | 13 Aug 2026 · 56 days ago | Oxygen 55.5%Temp 20 °CpH 7.39Ammonia below 0.03 mg/l |
| Itchen River upstream of Long Itchington sewage treatment works | River Itchen | 3.6 km | 4 Jun 2026 · 4 months ago | Oxygen 67.8%Temp 15.5 °CpH 7.56Ammonia 0.11 mg/l |
| Itchen River Marton | River Itchen | 12 km | 4 Mar 2025 · 19 months ago | Oxygen 95.6%Temp 6.5 °CpH 8.08Ammonia 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.
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