FloodRadar
Log inCreate free account
FloodRadar
Log inCreate free account
Live levels from 3 monitoring stations across West Sussex, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Sakeham Weirstructure | 0.35 mASD 31m ago | Normal | ||
| 11.8 km by river | ||||
| Beeding Bridgetidal | 1.84 mASD 31m ago | Normal | ||
| 9.7 km by river | ||||
| Shoreham Harbourtidal | 2.77 mAOD 31m ago | — | ||
Also on the Adur by the river map, but filed under another river name: SAKEHAM GS and COOLHAM 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 Adur 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 Adur above Shoreham Harbour on the river map. Streams without a gauge are not counted here.
No gauge below Shoreham Harbour 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.
10 storm overflows are traced upstream of Shoreham Harbour, the Adur’s lowest gauge on the river map: on the Adur itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Shoreham Harbour: 250 spills over 2,065 hours in total, across all 10.
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 Adur includes the smaller streams that join it there.
Within 3 km of one of the Adur’s gauges in a straight line, but the river map cannot say whether their water reaches it.
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. 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.
21 sampling points on the River Adur and the streams that join it above Shoreham Harbour. 9 have a sample from the last 12 months; 13 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) |
|---|---|---|---|---|
| Purveyors Farm Bridge Parsons Brook | River Adur (Western Branch) | 0.7 km | 11 May 2026 · 5 months ago | Oxygen 75.1%Temp 10.5 °CpH 7.75Ammonia 0.042 mg/l |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Adur East Churchill Way Burgesshill | unnamed stream | 20 km | 13 Aug 2026 · 56 days ago | Oxygen 78.3%Temp 19.1 °CpH 7.98Ammonia below 0.03 mg/l |
| Bolney Sewer E. of Bolney sewage treatment works | Rout Gill | 5.7 km | 5 Mar 2025 · 19 months ago | Oxygen 98.5%Temp 5 °CpH 7.75Ammonia 0.042 mg/l |
| River Adur East Wyndham Farm Road Bridge | River Adur | 2.1 km | Last sampled 19 Aug 2021, before the imported period |
| Sampling point | Watercourse (map) | Above the gauge | Last sample | Latest results (river water) |
|---|---|---|---|---|
| Hartsgravel Bridge - WFD | unnamed stream | 19 km | Last sampled 16 Mar 2023, before the imported period | |
| Knepp Mill Stream at Pondtail Farm | unnamed stream | 18 km | 6 Dec 2024 · 22 months ago | Oxygen 67%Temp 7.7 °CpH 7.08Ammonia 0.51 mg/l Nov 2024 |
| Capps Bridge | River Adur (Western Branch) | 17 km | Last sampled 27 Sep 2017, before the imported period | |
| Cowfold Stream at A272 | Cowfold Stream | 17 km | 28 May 2026 · 4 months ago | Oxygen 72.1%Temp 18.6 °CpH 8Ammonia 0.044 mg/l |
| Cowfold Stream at Footbridge | Cowfold Stream | 15 km | Last sampled 11 Jul 2014, before the imported period | |
| Downstream Cowfold sewage treatment works | Browning's Gill | 15 km | Last sampled 27 Mar 2014, before the imported period | |
| River Adur West Bay Bridge | River Adur (Western Branch) | 14 km | 6 Jan 2026 · 9 months ago | Oxygen 81.7%Temp 1.1 °CpH 7.57Ammonia 0.11 mg/l |
| Chess Stream Park Farm | Cutlers Brook | 13 km | 5 Mar 2025 · 19 months ago | Oxygen 102.4%Temp 5.5 °CpH 8.21Ammonia below 0.03 mg/l |
| Upstream of Fulking waste water treatment works | unnamed stream | 12 km | 3 Sep 2026 · 35 days ago | Oxygen 96%Temp 16.7 °CpH 8.38Ammonia below 0.03 mg/l |
| Honeybridge Stream Daylands Farm | Honey Bridge Stream | 12 km | 22 May 2026 · 5 months ago | Oxygen 91.8%Temp 15.1 °CpH 8.1Ammonia below 0.03 mg/l |
| River Adur Mill Stream Shermanbury Place | River Adur | 11 km | Last sampled 30 Jul 2013, before the imported period | |
| Chess Stream Chess Bridge | Cutlers Brook | 11 km | Last sampled 12 Apr 2019, before the imported period | |
| Woodsmill Bridge Woodsmill Stream | Woods Mill Stream | 6.6 km | 4 Sep 2026 · 34 days ago | Oxygen 62.5%Temp 18.1 °CpH 7.7Ammonia below 0.03 mg/l |
| Stretham Railway Culvert | Woods Mill Stream | 5.0 km | 4 Sep 2026 · 34 days ago | Oxygen 48.6%Temp 18.4 °CpH 7.42Ammonia 0.039 mg/l |
| Adur tributary at Nightingales | unnamed stream | 4.0 km | 28 Aug 2026 · 41 days ago | Oxygen 76.1% Apr 2026Temp 10.5 °C Apr 2026pH 7.85 Apr 2026Ammonia 0.16 mg/l Apr 2026 |
| Wyckham Dale Farm, Wyckham Farm Stream | Wyckham Farm Stream | 2.6 km | Last sampled 8 Jan 2015, before the imported period | |
| River Adur tributary of Kings Barn | Black Sewer | 1.5 km | 6 Feb 2024 · 2.7 years ago | pH 7.98 |
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.
FloodRadar helper · beta