Featured river · severn

River Severn

Britain's longest river — 220 miles from Plynlimon, mid-Wales, to the Bristol Channel. Salmon, paddleboarders, and Worcester's Diglis swimming spot.

Part of the Severn and Wye catchment: see all its rivers together.

113

Storm overflows

Active right now

Spill events · 24 h

Open discrepancies

Monitors offline

199

WIMS sampling points

Hydrology stations

Spill record· last 12 months · across the river

1,416

spill events

4,209h

cumulative discharge

18 weeks

longest single event (all time)

2025-02-12

first event on record

2026-09-18 14:51 UTCSevern Trent Water · SVT01168 · RIVER SEVERN
1 min
2026-09-17 16:10 UTCSevern Trent Water · SVT00768 · RIVER SEVERN
5 min
2026-09-17 11:40 UTCSevern Trent Water · SVT00768 · RIVER SEVERN
3 min
2026-09-17 11:34 UTCSevern Trent Water · SVT00768 · RIVER SEVERN
3 min
2026-09-17 08:58 UTCSevern Trent Water · SVT00291 · RIVER SEVERN
2 min
2026-09-17 07:47 UTCSevern Trent Water · SVT00291 · RIVER SEVERN
27 min
2026-09-15 07:32 UTCSevern Trent Water · SVT00291 · RIVER SEVERN
1 min
2026-09-13 20:43 UTCSevern Trent Water · SVT00349 · RIVER SEVERN
30 min
2026-09-13 18:08 UTCSevern Trent Water · SVT02518 · RIVER SEVERN
14 min
2026-09-13 18:03 UTCSevern Trent Water · SVT02518 · RIVER SEVERN
0 min
2026-09-13 13:42 UTCSevern Trent Water · SVT00291 · RIVER SEVERN
23 min
2026-09-13 11:00 UTCDwr Cymru Welsh Water · Barry Town Long Sea Storm Overflow · Severn Estuary
30 min