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River Avon water levels

Live levels from 34 monitoring stations across Bath and North East Somerset, Bournemouth, Christchurch and Poole, City of Bristol, Devon, Gloucestershire…, updated every 15 minutes.

34stations
0above typical high
4catchments
⚠️ Several distinct UK rivers share the name “River Avon” — sections below are grouped by catchment.

Gauges

River Avon — Bristol Avon Little Avon Axe and North Somerset St

12 stations in this catchment

StationTownLevel nowStatusTrend
Great SomerfordGreat Somerford0.13 m 30m agoLow—
Corshamplace estimatedCorsham0.04 mASD 30m agoLow—
Bradford on AvonWestwood1.04 mASD 30m agoNormal—
BathfordBatheaston0.74 m 30m agoNormal—
Bath Destructor BridgeTwerton3.43 mASD 30m agoNormal—
SaltfordSaltford0.53 mASD 30m agoNormal—
Keynsham, RivermeadKeynsham4.71 mASD 30m agoLow—
Bristol Netham LockstructureBristol6.11 m 30m agoNormal—
Netham WeirstructureBristol0.26 mASD 45m agoNormal—
Ashton ValeLeigh Woods0.98 mASD 30m agoNormal—

On other watercourses

These gauges are filed under the Avon, but the river map places them on another watercourse, so they are not in the Avon’s order above.

Bristol Bedminster St Johns Lane Downstreamstructureon The MalagoMalago0.35 mASD 30m agoNormal▲
Its water and the Avon’s meet further down, below Netham Weir: neither is upstream of the other.
Bristol Bedminster St Johns Lane Upstreamon The MalagoMalago0.35 mASD 30m agoNormal▲
Same site as Bristol Bedminster St Johns Lane Downstream.

River Avon — Warwickshire Avon

11 stations in this catchment

StationTownLevel nowStatusTrend
LilbournestructureLilbourne0.10 mASD 45m agoNormal—
RugbyNewbold On Avon0.56 mASD 45m agoNormal—
StaretonStareton0.18 mASD 45m agoNormal—
WarwickWarwick1.12 mASD 45m agoNormal—
StratfordStratford-Upon-Avon0.59 mASD 45m agoNormal—
Bidford on AvonBidford on Avon1.34 mASD 45m agoNormal—
EveshamEvesham0.50 mASD 45m agoNormal—
PershorestructurePershore3.29 mASD 30m agoLow—
Eckington SluicestructureEckington1.99 mASD 30m agoNormal—
BredonBredon0.77 mASD 45m agoNormal—
Upper PoundTewkesbury2.26 mASD 30m agoNormal—

River Avon — Hampshire Avon

9 stations in this catchment

StationTownLevel nowStatusTrend
PewseyPewsey0.10 mASD 30m agoNormal—
Upavon WestUpavon0.05 mASD 30m agoLow—
Upavon EastRushall0.19 mASD 30m agoNormal—
AmesburyAmesbury0.14 mASD 30m agoLow—
Salisbury Ashley RoadSalisbury0.18 mASD 30m agoNormal—
Salisbury Harnham BridgeSalisbury0.34 m 30m agoNormal▲
Downton Iron BridgeDownton0.04 mASD 30m agoNormal—
East Mills FlumeFordingbridge0.62 m 30m agoNormal—
Knapp MillBurton0.36 mASD 30m agoNormal—

River Avon — Teign Torbay and South Hams

2 stations in this catchment

StationTownLevel nowStatusTrend
DidworthyDidworthy0.32 m 4h agoNormal
LoddiswellLoddiswell0.21 m 45m agoLow—

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

River Avon — Bristol Avon Little Avon Axe and North Somerset St

18 gauged tributaries, 32 gauges

Each tributary’s water passes the gauge it joins above and every gauge below it on the Avon, and none of the gauges above where it joins. For each, the gauge nearest the Avon is shown; its own page lists the rest.

Where the Avon goes

Below Ashton Vale, its water next reaches Avonmouth Portbury, a gauge on an unnamed watercourse (distance by river not measured).

River Avon — Warwickshire Avon

16 gauged tributaries, 31 gauges

Each tributary’s water passes the gauge it joins above and every gauge below it on the Avon, and none of the gauges above where it joins. For each, the gauge nearest the Avon is shown; its own page lists the rest.

Bunches Brook name from the river map

Joins the Avon between Bidford on Avon and Evesham, no more than 12.8 km by river above Evesham. Nearest the Avon: Childswickham Normal; 1 more gauge further up.

Where the Avon goes

Below Upper Pound, its water next reaches Deerhurst, a gauge on River Severn, 4.6 km by river downstream.

River Avon — Hampshire Avon

6 gauged tributaries, 17 gauges

River Nadder

Joins the Avon between Salisbury Ashley Road and Salisbury Harnham Bridge, no more than 7.1 km by river above Salisbury Harnham Bridge.

Tisbury0.61 mASD 30m agoNormal
Wilton0.09 m 30m agoNormal

Its water passes Salisbury Harnham Bridge and every gauge below it on the Avon. It does not pass Salisbury Ashley Road or the gauges above it.

River Wylye

Joins the Avon between Salisbury Ashley Road and Salisbury Harnham Bridge, no more than 10.4 km by river above Salisbury Harnham Bridge.

Brixton Deverill0.18 mASD 30m agoNormal
HEYTESBURY A360.57 m3/s 1h ago—
Heytesbury0.64 m 1h agoLow
South Newton0.13 m 30m agoLow

Its water passes Salisbury Harnham Bridge and every gauge below it on the Avon. It does not pass Salisbury Ashley Road or the gauges above it.

Gauged streams joining the Wylye

Bickerley Millstream name from the river map

Joins the Avon between East Mills Flume and Knapp Mill, no more than 19.3 km by river above Knapp Mill.

Ringwood Old Cottage0.14 mAOD 45m agoNormal

Its water passes Knapp Mill and every gauge below it on the Avon. It does not pass East Mills Flume or the gauges above it.

Dockens Water name from the river map

Joins the Avon between East Mills Flume and Knapp Mill, no more than 24.8 km by river above Knapp Mill.

Moyles Court0.10 mASD 21d agoold reading

Its water passes Knapp Mill and every gauge below it on the Avon. It does not pass East Mills Flume or the gauges above it.

Where the Avon goes

No gauge below Knapp Mill is known on the river map.

River Avon — Teign Torbay and South Hams

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

Where the Avon goes

No gauge below Loddiswell 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.

River Avon — Bristol Avon Little Avon Axe and North Somerset St

Streams without a gauge

Named streams on the river map that flow into the Avon 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.

And 3 more.

River Avon — Warwickshire Avon

Streams without a gauge

And 6 more.

River Avon — Hampshire Avon

Streams without a gauge

River Avon — Teign Torbay and South Hams

Streams without a gauge

Storm overflows upstream

River Avon — Bristol Avon Little Avon Axe and North Somerset St

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

  • 1 reports discharging now
  • 306 not discharging
  • 13 offline or silent: 4 monitor offline, 6 status unknown, 3 no live feed

Official figures for 2025, for the overflows traced upstream of Netham Weir: 6,019 spills over 34,410 hours in total, across the 317 that have a figure. 3 had no usable monitor data that year.

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 Avon includes the smaller streams that join it there. Every overflow traced is listed here, each stretch in full. Back to the short lists →

Above Great Somerford, the Avon’s highest gauge8 overflows
  • Park Road Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon (Tetbury Branch) · 9.4 km by river above Great Somerford · 2025: 18 spills, 18 h
  • Lawnwood Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon (Tetbury Branch) · 9.1 km by river above Great Somerford · 2025: 15 spills, 21 h
  • Lower Stanton St Quintin Ww PS Not discharging
    Wessex Water · into Rodbourne Brook · 8.5 km by river above Great Somerford · 2025: 20 spills, 86 h
  • Parliament Row CSO Not discharging
    Wessex Water · into River Avon (Sherston Branch) · 8.0 km by river above Great Somerford · 2025: 7 spills, 5.1 h
  • St. Johns Bridge CSO Not discharging
    Wessex Water · into Sherston Avon · 7.9 km by river above Great Somerford · 2025: 18 spills, 70 h
  • St Johns Street Pumping Station Not discharging
    Wessex Water · into River Avon (Tetbury Branch) · 7.7 km by river above Great Somerford · 2025: 35 spills, 126 h
  • Malmesbury WwTW Not discharging
    Wessex Water · into River Avon · 7.0 km by river above Great Somerford · 2025: 47 spills, 544 h
  • Great Somerford WwTW Not discharging
    Wessex Water · into River Avon(S) · 170 m by river above Great Somerford · 2025: 52 spills, 334 h
Gauze Brook, above Rodbournejoins the Avon above Great Somerford3 overflows
  • Hullavington WwTW Status unknown
    Wessex Water · into Gauze Brook (S) · 5.8 km by river above Rodbourne · 2025: no data
  • Hullavington WwTW Not discharging
    Wessex Water · into Gauze Brook (S) · 5.8 km by river above Rodbourne · 2025: 79 spills, 1,286 h
  • Mill Lane Combined Sewer Overflow Not discharging
    Wessex Water · into Gauze Brook · 2.1 km by river above Rodbourne · 2025: 24 spills, 364 h
Sherston Avon, above Fossewayjoins the Avon above Great Somerford4 overflows
  • Great Badminton WwTW Not discharging
    Wessex Water · into Luckington Brook · 11.7 km by river above Fosseway · 2025: 94 spills, 1,904 h
  • Luckington Water Recycling Centre Not discharging
    Wessex Water · into Luckington Brook · 9.1 km by river above Fosseway · 2025: 13 spills, 178 h
  • The Tarters CSO Not discharging
    Wessex Water · into River Avon (Sherston Branch) · 5.9 km by river above Fosseway · 2025: 24 spills, 9.7 h
  • Sherston Wastewater Treatment Works Not discharging
    Wessex Water · into Avon (Sherston Branch) · 5.7 km by river above Fosseway · 2025: 14 spills, 43 h
Sherston Avon, above St Johns Weirjoins the Avon above Great Somerford3 overflows
  • Foxley Road Combined Sewer Overflow Not discharging
    Wessex Water · into Sherston Avon · 1.2 km by river above St Johns Weir · 2025: 21 spills, 5.9 h
  • Harpers Lane CSO Not discharging
    Wessex Water · into River Avon (Sherston Branch) · 1.1 km by river above St Johns Weir · 2025: 3 spills, 6.3 h
  • Burton Hill PS Not discharging
    Wessex Water · into Trib Of River Avon(S) · 780 m by river above St Johns Weir · 2025: 2 spills, 7.5 h
Tetbury Avon, above Brokenboroughjoins the Avon above Great Somerford3 overflows
Woodbridge Brook, above Crabb Milljoins the Avon above Great Somerford4 overflows
  • Brinkworth Combined Sewer Overflow Not discharging
    Wessex Water · into Woodbridge Brook · 11.6 km by river above Crabb Mill · 2025: 0 spills, 0 h
  • Noah's Ark Pumping Station Not discharging
    Wessex Water · into Trib River Avon (S) · 3.3 km by river above Crabb Mill · 2025: 19 spills, 250 h
  • Tanners Bridge Pumping Station Not discharging
    Wessex Water · into Charlton Stream · 2.1 km by river above Crabb Mill · 2025: 24 spills, 288 h
  • Lea North Pumping Station Not discharging
    Wessex Water · into Woodbridge Brook (S) · 2.1 km by river above Crabb Mill · 2025: 18 spills, 135 h
Between Great Somerford and Bradford on Avon38 overflows
  • Brinkworth WwTW Not discharging
    Wessex Water · into Brinkworth Brook (S) · 52.4 km by river above Bradford on Avon · 2025: 25 spills, 265 h
  • The Green PS Not discharging
    Wessex Water · into Dauntsey Brook(S) · 46.4 km by river above Bradford on Avon · 2025: 25 spills, 95 h
  • Sutton Benger WwTW Not discharging
    Wessex Water · into Bristol Avon(S) · 39.1 km by river above Bradford on Avon · 2025: 62 spills, 972 h
  • Long Close CSO Monitor offline
    Wessex Water · into River Avon Via Sws · 30.5 km by river above Bradford on Avon · 2025: 6 spills, 5.4 h · reaches the river through a sewer, so where it enters is approximate
  • Bristol Road Combined Sewer Not discharging
    Wessex Water · into Hardenhuish Brook · 30.4 km by river above Bradford on Avon · 2025: 53 spills, 80 h
  • Mary Street Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon · 30.1 km by river above Bradford on Avon · 2025: 1 spill, 0 h
  • Gaston Road CSO Not discharging
    Wessex Water · into Hardenhuish Brook · 30.0 km by river above Bradford on Avon · 2025: 46 spills, 191 h
  • Dallas Road Combined Sewer Overflow Not discharging
    Wessex Water · into Hardenhuish Brook · 29.7 km by river above Bradford on Avon · 2025: 0 spills, 0 h
  • Monkton Park Offices CSO Not discharging
    Wessex Water · into River Avon · 29.5 km by river above Bradford on Avon · 2025: 6 spills, 21 h
  • CSO O/S 29 High Street Not discharging
    Wessex Water · into River Avon(S) · 29.3 km by river above Bradford on Avon · 2025: 47 spills, 93 h
  • Charter Road CSO Not discharging
    Wessex Water · into River Avon · 29.0 km by river above Bradford on Avon · 2025: 1 spill, 3.6 h
  • Westmead Pumping Station Not discharging
    Wessex Water · into River Avon · 28.0 km by river above Bradford on Avon · 2025: 6 spills, 67 h
  • Chippenham Water Recycling Centre Not discharging
    Wessex Water · into River Avon · 27.0 km by river above Bradford on Avon · 2025: 1 spill, 3.5 h
  • Chippenham Water Recycling Centre Not discharging
    Wessex Water · into River Avon · 27.0 km by river above Bradford on Avon · 2025: 39 spills, 492 h
  • Nethercote Hill Pumping Station Not discharging
    Wessex Water · into Byde Mill Brook · 21.5 km by river above Bradford on Avon · 2025: 6 spills, 21 h
  • Lacock Water Recycling Centre Not discharging
    Wessex Water · into Bristol Avon · 19.1 km by river above Bradford on Avon · 2025: 8 spills, 49 h
  • Thingley Water Recycling Centre Not discharging
    Wessex Water · into Byde Mill Brook/River Avon · 19.0 km by river above Bradford on Avon · 2025: 2 spills, 2.8 h
  • Thingley Water Recycling Centre Not discharging
    Wessex Water · into Byde Mill Brook/River Avon · 19.0 km by river above Bradford on Avon · 2025: 38 spills, 509 h
  • Shaw C Of E School CSO Not discharging
    Wessex Water · into South Brook · 16.3 km by river above Bradford on Avon · 2025: 40 spills, 278 h
  • Scout Hut CSO Not discharging
    Wessex Water · into Clackers Brook · 14.0 km by river above Bradford on Avon · 2025: 56 spills, 512 h
  • Melksham Sewage Treatment Works Not discharging
    Wessex Water · into River Avon · 13.5 km by river above Bradford on Avon · 2025: 51 spills, 496 h
  • Melksham WwTW Not discharging
    Wessex Water · into River Avon · 13.2 km by river above Bradford on Avon · 2025: 20 spills, 308 h
  • Semington Road CSO Not discharging
    Wessex Water · into River Avon(S) · 12.7 km by river above Bradford on Avon · 2025: 22 spills, 82 h
  • Semington Roundabout Not discharging
    Wessex Water · into (S) River Avon · 12.7 km by river above Bradford on Avon · 2025: 2 spills, 13 h
  • Semington Brook Pumping Station Not discharging
    Wessex Water · into Semington Brook (S) · 12.3 km by river above Bradford on Avon · 2025: 13 spills, 184 h
  • The Green Pumping Station Not discharging
    Wessex Water · into Trib Of Chalfield Brook · 12.3 km by river above Bradford on Avon · 2025: 14 spills, 170 h
  • Chantry Gardens PS Not discharging
    Wessex Water · into Lambrok Stream · 11.6 km by river above Bradford on Avon · 2025: 18 spills, 149 h
  • The Star Pumping Station Not discharging
    Wessex Water · into Tributary Of The River Avon · 8.3 km by river above Bradford on Avon · 2025: 48 spills, 254 h
  • 6 Wicker Hill CSO Not discharging
    Wessex Water · into River Biss · 7.8 km by river above Bradford on Avon · 2025: 0 spills, 0 h
  • Shires Car Park CSO Not discharging
    Wessex Water · into River Biss Via Sws · 6.8 km by river above Bradford on Avon · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Stallard Street CSO Not discharging
    Wessex Water · into The River Biss Via Sws · 6.8 km by river above Bradford on Avon · 2025: 2 spills, 1.3 h · reaches the river through a sewer, so where it enters is approximate
  • Trowbridge Wastewater Trtmnt Works Not discharging
    Wessex Water · into F/E-River Avon, CSO-River Biss · 6.4 km by river above Bradford on Avon · 2025: 11 spills, 112 h
  • Ladydown Mill Combined Sewer Of Not discharging
    Wessex Water · into River Biss Via Sws · 5.6 km by river above Bradford on Avon · 2025: 21 spills, 165 h · reaches the river through a sewer, so where it enters is approximate
  • Woolley Street CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 1.6 km by river above Bradford on Avon · 2025: 18 spills, 50 h · reaches the river through a sewer, so where it enters is approximate
  • Silver Street CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 1.3 km by river above Bradford on Avon · 2025: 8 spills, 48 h · reaches the river through a sewer, so where it enters is approximate
  • Market Street CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 1.3 km by river above Bradford on Avon · 2025: 47 spills, 53 h · reaches the river through a sewer, so where it enters is approximate
  • Pound Lane CSO Not discharging
    Wessex Water · into River Avon · 710 m by river above Bradford on Avon · 2025: 4 spills, 11 h
  • Barton Farm CSO Not discharging
    Wessex Water · into River Avon · 590 m by river above Bradford on Avon · 2025: 8 spills, 53 h
Brinkworth Brook, above Brinkworth Brookjoins the Avon above Bradford on Avon2 overflows
  • Wootton Bassett WwTW Not discharging
    Wessex Water · into Hancock's Water · 6.6 km by river above Brinkworth Brook · 2025: 24 spills, 265 h
  • Wootton Bassett CSO Not discharging
    Wessex Water · into Hancock's Water · 6.5 km by river above Brinkworth Brook · 2025: 14 spills, 51 h
River Biss, above Trowbridgejoins the Avon above Bradford on Avon2 overflows
  • Penn Knapp PS Not discharging
    Wessex Water · into Biss Brook(S) · 11.2 km by river above Trowbridge · 2025: 1 spill, 3.1 h
  • Polebarn Road CSO Not discharging
    Wessex Water · into Paxcroft Brook Via Sws · 390 m by river above Trowbridge · 2025: 1 spill, 0 h · reaches the river through a sewer, so where it enters is approximate
River Marden, above Calnejoins the Avon above Bradford on Avon1 overflow
  • Quemerford Bridge CSO Not discharging
    Wessex Water · into River Marden · 1.9 km by river above Calne · 2025: 12 spills, 45 h
River Marden, above Stanleyjoins the Avon above Bradford on Avon9 overflows
  • Wood Street Combined Sewer Overflow Not discharging
    Wessex Water · into River Marden Via Sws · 6.9 km by river above Stanley · 2025: 1 spill, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Patford Street CSO Not discharging
    Wessex Water · into River Marden · 6.5 km by river above Stanley · 2025: 10 spills, 34 h
  • The Strand CSO Not discharging
    Wessex Water · into River Marden · 6.5 km by river above Stanley · 2025: 10 spills, 4.3 h
  • Market Hill CSO Not discharging
    Wessex Water · into River Marden Via Sws · 6.5 km by river above Stanley · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Castlefields Park Combined Sewer Not discharging
    Wessex Water · into River Marden · 6.4 km by river above Stanley · 2025: 1 spill, 0.9 h
  • Mosses Mill 1 Combined Sewer Not discharging
    Wessex Water · into River Marden · 5.2 km by river above Stanley · 2025: 0 spills, 0 h
  • Mosses Mill Combined Sewer Overflow Not discharging
    Wessex Water · into River Marden · 5.2 km by river above Stanley · 2025: 44 spills, 146 h
  • Calne Wastewater Treatment Works Not discharging
    Wessex Water · into River Marden(S) · 3.7 km by river above Stanley · 2025: 21 spills, 44 h
  • Calne Wastewater Treatment Works Not discharging
    Wessex Water · into River Marden(S) · 3.5 km by river above Stanley · 2025: 26 spills, 256 h
Between Bradford on Avon and Bathford8 overflows
  • Bradford On Avon WwTW No live feed
    Wessex Water · into River Avon · 11.1 km by river above Bathford · 2025: no data
  • Bradford On Avon WwTW Not discharging
    Wessex Water · into River Avon · 11.0 km by river above Bathford · 2025: 10 spills, 97 h
  • Sharpstone Combined Sewer Overflow Not discharging
    Wessex Water · into River Frome · 10.0 km by river above Bathford · 2025: 29 spills, 63 h
  • New Inn Pumping Station Not discharging
    Wessex Water · into River Frome · 9.2 km by river above Bathford · 2025: 4 spills, 14 h
  • Winsley Water Recyling Centre Not discharging
    Wessex Water · into River Avon(S) · 8.7 km by river above Bathford · 2025: 6 spills, 20 h
  • Summer Lane Combined Sewer Overflow Not discharging
    Wessex Water · into Horsecombe Brook · 8.5 km by river above Bathford · 2025: 27 spills, 13 h
  • Freshford Wrc Not discharging
    Wessex Water · into Bristol Avon · 7.9 km by river above Bathford · 2025: 32 spills, 361 h
  • Mill Lane Combined Sewer Overflow Not discharging
    Wessex Water · into Midford Brook (Via Sws) · 7.3 km by river above Bathford · 2025: 49 spills, 46 h · reaches the river through a sewer, so where it enters is approximate
By Brook, above Middlehilljoins the Avon above Bathford6 overflows
Midford Brook, above Midfordjoins the Avon above Bathford13 overflows
  • Clutton PS Not discharging
    Wessex Water · into Trib Of Cam Brook · 20.0 km by river above Midford · 2025: 28 spills, 120 h
  • Temple Bridge Pumping Station Not discharging
    Wessex Water · into Cam Brook · 19.0 km by river above Midford · 2025: 45 spills, 237 h
  • Hallatrow S P Stn Not discharging
    Wessex Water · into Cam Brook · 17.2 km by river above Midford · 2025: 7 spills, 13 h
  • Goosard Bridge PS Not discharging
    Wessex Water · into Cam Brook · 15.2 km by river above Midford · 2025: 47 spills, 206 h
  • Paulton Wastewater Treatment Works Not discharging
    Wessex Water · into Cam Brook · 15.1 km by river above Midford · 2025: 57 spills, 844 h
  • Bridge Place Road CSO Not discharging
    Wessex Water · into Cam Brook · 11.6 km by river above Midford · 2025: 5 spills, 8.2 h
  • Stoneage Lane Pumping Station Not discharging
    Wessex Water · into Cam Brook (S) · 9.9 km by river above Midford · 2025: 28 spills, 156 h
  • Splott Farm CSO Not discharging
    Wessex Water · into Trib Of Cam Brook · 9.3 km by river above Midford · 2025: 2 spills, 2.5 h
  • Cam Valley WwTW Not discharging
    Wessex Water · into Cam Brook(S) · 9.0 km by river above Midford · 2025: 28 spills, 29 h
  • Norton St Philip WwTW Not discharging
    Wessex Water · into Tributary Of Norton Brook(S) · 8.0 km by river above Midford · 2025: 47 spills, 757 h
  • Mill Hill Pumping Station Not discharging
    Wessex Water · into Wellow Brook · 6.0 km by river above Midford · 2025: 0 spills, 0 h
  • Wellow Wastewater Treatment Works Not discharging
    Wessex Water · into Wellow Brook · 5.6 km by river above Midford · 2025: 2 spills, 5.3 h
  • Midford Combined Sewer Overflow Not discharging
    Wessex Water · into Midford Brook · 480 m by river above Midford · 2025: 2 spills, 0.5 h
Wellow Brook, above Weltonjoins Midford Brook1 overflow
  • Midsomer Norton CSO Not discharging
    Wessex Water · into Wellow Brook · 740 m by river above Welton · 2025: 17 spills, 68 h
Wellow Brook, above Wellowjoins Midford Brook16 overflows
  • Stratton On Fosse WwTW Not discharging
    Wessex Water · into Luccombe Watercourse (S) · 13.8 km by river above Wellow · 2025: 0 spills, 0 h · placed on the river by its position alone
  • Berkeley Avenue CSO Not discharging
    Wessex Water · into Wellow Brook · 11.1 km by river above Wellow · 2025: 28 spills, 58 h
  • Waterside Combined Sewer Overflow Not discharging
    Wessex Water · into Trib Of Waterside · 9.8 km by river above Wellow · 2025: 9 spills, 1.6 h
  • Welton Hollow CSO Not discharging
    Wessex Water · into Wellow Brook · 9.5 km by river above Wellow · 2025: 28 spills, 92 h
  • Somervale Road Combined Sewer Of Not discharging
    Wessex Water · into Wellow Brook · 9.0 km by river above Wellow · 2025: 40 spills, 25 h
  • Kilmersdon Road CSO Not discharging
    Wessex Water · into Waterside · 8.4 km by river above Wellow · 2025: 28 spills, 13 h
  • Riverside Mews CSO Monitor offline
    Wessex Water · into Wellow Brook · 8.1 km by river above Wellow · 2025: 0 spills, 0 h
  • Frome Road Combined Sewer Overflow Not discharging
    Wessex Water · into Wellow Brook · 7.9 km by river above Wellow · 2025: 1 spill, 0.2 h
  • Pine Court Combined Sewer Overflow Not discharging
    Wessex Water · into Wellow Brook · 7.6 km by river above Wellow · 2025: 10 spills, 16 h
  • Tyning Hill Combined Sewer Overflow Not discharging
    Wessex Water · into The Wellow Brook · 7.6 km by river above Wellow · 2025: 0 spills, 0 h
  • Waldegrave Terrace CSO Not discharging
    Wessex Water · into Wellow Brook · 7.6 km by river above Wellow · 2025: 0 spills, 0 h
  • Radstock Water Recycling Centre Not discharging
    Wessex Water · into Wellow Brook · 7.2 km by river above Wellow · 2025: 13 spills, 38 h
  • Radstock Water Recycling Centre Not discharging
    Wessex Water · into Wellow Brook · 7.2 km by river above Wellow · 2025: 14 spills, 45 h
  • Radstock Water Recycling Centre Not discharging
    Wessex Water · into Wellow Brook · 7.1 km by river above Wellow · 2025: 49 spills, 407 h
  • Shoscombe Wastewater Treatment Work Not discharging
    Wessex Water · into Wellow Brook · 4.5 km by river above Wellow · 2025: 41 spills, 342 h
  • Single Hill Pumping Station Not discharging
    Wessex Water · into A Tributary Of Wellow Brook · 3.8 km by river above Wellow · 2025: 0 spills, 0 h
Somerset Frome, above Tellisfordjoins the Avon above Bathford13 overflows
  • North Of Carpet Factory CSO Not discharging
    Wessex Water · into River Frome · 13.6 km by river above Tellisford · 2025: 4 spills, 0.6 h
  • Rodden Road CSO Not discharging
    Wessex Water · into River Frome(Via Sws) · 13.1 km by river above Tellisford · 2025: 2 spills, 2.2 h · reaches the river through a sewer, so where it enters is approximate
  • Court House Combined Sewer Overflow Not discharging
    Wessex Water · into River Frome · 12.6 km by river above Tellisford · 2025: 19 spills, 5.6 h
  • Merchants Barton CSO Not discharging
    Wessex Water · into River Frome (Via Sws) · 12.6 km by river above Tellisford · 2025: 17 spills, 4.3 h · reaches the river through a sewer, so where it enters is approximate
  • 8 Market Place CSO Monitor offline
    Wessex Water · into River Frome Via Sws · 12.5 km by river above Tellisford · 2025: 6 spills, 1.1 h · reaches the river through a sewer, so where it enters is approximate
  • Westway Precinct Car Park CSO Not discharging
    Wessex Water · into River Frome · 12.4 km by river above Tellisford · 2025: 3 spills, 0.2 h
  • Frome Wastewater Treatment Works Not discharging
    Wessex Water · into River Frome(S) · 11.6 km by river above Tellisford · 2025: 0 spills, 0 h
  • Frome Wastewater Treatment Works Not discharging
    Wessex Water · into River Frome(S) · 11.6 km by river above Tellisford · 2025: 22 spills, 60 h
  • Whatcombe Road CSO Not discharging
    Wessex Water · into River Frome Via Sws · 11.5 km by river above Tellisford · 2025: 31 spills, 10 h · reaches the river through a sewer, so where it enters is approximate
  • Youth Centre CSO Not discharging
    Wessex Water · into River Frome · 11.3 km by river above Tellisford · 2025: 21 spills, 6.8 h
  • Beckington WwTW Not discharging
    Wessex Water · into River Frome · 5.9 km by river above Tellisford · 2025: 11 spills, 132 h
  • Rode Combined Sewer Overflow Not discharging
    Wessex Water · into Trib Of The River Frome · 2.6 km by river above Tellisford · 2025: 3 spills, 7.1 h
  • Rode Wastewater Treatment Works Not discharging bathing water
    Wessex Water · into Somerset Frome(S) · 2.2 km by river above Tellisford · 2025: 39 spills, 522 h
River Frome, above Frome Roddenjoins the Somerset Frome6 overflows
  • Witham Friary Pumping Station Not discharging
    Wessex Water · into River Frome · 12.5 km by river above Frome Rodden · 2025: 17 spills, 163 h
  • Trudoxhill Pumping Station Not discharging
    Wessex Water · into Tributary Of River Frome · 9.1 km by river above Frome Rodden · 2025: 53 spills, 584 h
  • Divers Bridge Pumping Station Not discharging
    Wessex Water · into Rodden Brook · 5.5 km by river above Frome Rodden · 2025: 2 spills, 15 h
  • Adderwell Close CSO Not discharging
    Wessex Water · into River Frome (Via Sws) · 1.1 km by river above Frome Rodden · 2025: 58 spills, 107 h · reaches the river through a sewer, so where it enters is approximate
  • Portway Locks Hill CSO Not discharging
    Wessex Water · into River Frome · 250 m by river above Frome Rodden · 2025: 17 spills, 2.2 h
  • Wallbridge Combined Sewer Overflow Not discharging
    Wessex Water · into River Frome · 230 m by river above Frome Rodden · 2025: 3 spills, 11 h
Mells River, above Holwelljoins the Somerset Frome1 overflow
  • Wanstrow PS Not discharging
    Wessex Water · into Trib Of The Nunney Brook(S) · 4.9 km by river above Holwell · 2025: 16 spills, 123 h
Mells River, above Stoke Bottom Farmjoins the Somerset Frome1 overflow
  • Oakhill WwTW Not discharging
    Wessex Water · into Mells Stream · 1.2 km by river above Stoke Bottom Farm · 2025: 5 spills, 30 h
Mells River, above Vallisjoins the Somerset Frome5 overflows
  • Kings Head CSO Not discharging
    Wessex Water · into Mells Stream · 8.8 km by river above Vallis · 2025: 26 spills, 77 h
  • Nunney Castle CSO No live feed
    Wessex Water · into Nunney Brook(S) · 5.2 km by river above Vallis · 2025: no data
  • Nunney Wastewater Treatment Works Not discharging
    Wessex Water · into Nunney Brook · 4.4 km by river above Vallis · 2025: 77 spills, 1,383 h
  • Mells PS Not discharging
    Wessex Water · into Mells Stream(S) · 3.8 km by river above Vallis · 2025: 0 spills, 0 h
  • Mells Wastewater Treatment Works Not discharging
    Wessex Water · into Mells Stream · 3.3 km by river above Vallis · 2025: 0 spills, 0 h
Between Bathford and Bath Destructor Bridge55 overflows
  • Mill House Not discharging
    Wessex Water · into Trib Of River Bristol Avon · 7.4 km by river above Bath Destructor Bridge · 2025: 10 spills, 8.3 h
  • Ostling Lane CSO Not discharging
    Wessex Water · into River Avon · 7.4 km by river above Bath Destructor Bridge · 2025: 48 spills, 130 h
  • Batheaston Gardens CSO Not discharging
    Wessex Water · into River Avon · 6.6 km by river above Bath Destructor Bridge · 2025: 1 spill, 2.5 h
  • Mill Lane Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon · 5.8 km by river above Bath Destructor Bridge · 2025: 23 spills, 145 h
  • Canal Terrace CSO Not discharging
    Wessex Water · into River Avon · 5.6 km by river above Bath Destructor Bridge · 2025: 15 spills, 5.4 h
  • J Hughes Cottage CSO Not discharging
    Wessex Water · into Lam Brook · 5.2 km by river above Bath Destructor Bridge · 2025: 7 spills, 10 h
  • Baytree Allotments CSO Not discharging
    Wessex Water · into Lam Brook Via Sws · 5.2 km by river above Bath Destructor Bridge · 2025: 8 spills, 0.5 h · reaches the river through a sewer, so where it enters is approximate
  • Fairfield Avenue CSO No live feed
    Wessex Water · into Lam Brook Via Sws · 5.2 km by river above Bath Destructor Bridge · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Larkhall Terrace CSO Not discharging
    Wessex Water · into Lam Brook Via Sws · 5.2 km by river above Bath Destructor Bridge · 2025: 21 spills, 14 h · reaches the river through a sewer, so where it enters is approximate
  • Bath Lambridge Rugby Ground Carpark CSO Not discharging
    Wessex Water · into Lam Brook · 5.0 km by river above Bath Destructor Bridge · 2025: 12 spills, 13 h
  • London Road West CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.0 km by river above Bath Destructor Bridge · 2025: 27 spills, 167 h · reaches the river through a sewer, so where it enters is approximate
  • Rockcliffe Avenue CSO Not discharging
    Wessex Water · into River Avon · 3.8 km by river above Bath Destructor Bridge · 2025: 1 spill, 0.2 h
  • London Road Bus Depot CSO Not discharging
    Wessex Water · into River Avon · 3.6 km by river above Bath Destructor Bridge · 2025: 31 spills, 318 h
  • Rockcliffe Road CSO Not discharging
    Wessex Water · into River Avon · 3.5 km by river above Bath Destructor Bridge · 2025: 16 spills, 54 h
  • Horton House CSO Not discharging
    Wessex Water · into River Avon · 3.4 km by river above Bath Destructor Bridge · 2025: 18 spills, 16 h
  • Walcot Terrace CSO Not discharging
    Wessex Water · into River Avon · 3.3 km by river above Bath Destructor Bridge · 2025: 12 spills, 14 h
  • Cleveland Bridge CSO Not discharging
    Wessex Water · into River Avon · 3.2 km by river above Bath Destructor Bridge · 2025: 7 spills, 0.5 h
  • Scout Site Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon · 3.2 km by river above Bath Destructor Bridge · 2025: 4 spills, 3.4 h
  • Aldridges CSO Not discharging
    Wessex Water · into River Avon · 3.1 km by river above Bath Destructor Bridge · 2025: 13 spills, 3.7 h
  • Chatham Row CSO Not discharging
    Wessex Water · into River Avon · 3.0 km by river above Bath Destructor Bridge · 2025: 49 spills, 69 h
  • St John's Road CSO Not discharging
    Wessex Water · into River Avon · 3.0 km by river above Bath Destructor Bridge · 2025: 5 spills, 0.7 h
  • Ladymead House CSO Not discharging
    Wessex Water · into River Avon · 3.0 km by river above Bath Destructor Bridge · 2025: 25 spills, 25 h
  • 11 St John's Road CSO Not discharging
    Wessex Water · into River Avon · 2.8 km by river above Bath Destructor Bridge · 2025: 1 spill, 0 h
  • Cattle Market Not discharging
    Wessex Water · into River Avon · 2.8 km by river above Bath Destructor Bridge · 2025: 7 spills, 5.2 h
  • Walcot Street Combined Sewer Of Not discharging
    Wessex Water · into The River Avon · 2.7 km by river above Bath Destructor Bridge · 2025: 7 spills, 2.0 h
  • Grove Street CSO Not discharging
    Wessex Water · into River Avon · 2.7 km by river above Bath Destructor Bridge · 2025: 0 spills, 0 h
  • Loop Road CSO Not discharging
    Wessex Water · into River Avon · 2.5 km by river above Bath Destructor Bridge · 2025: 3 spills, 0.1 h
  • Grand Parade CSO Not discharging
    Wessex Water · into River Avon · 2.5 km by river above Bath Destructor Bridge · 2025: 0 spills, 0 h
  • Recreation Ground CSO Not discharging
    Wessex Water · into River Avon · 2.4 km by river above Bath Destructor Bridge · 2025: 58 spills, 139 h
  • Parade Gardens Storm Overflow Not discharging
    Wessex Water · into River Avon · 2.3 km by river above Bath Destructor Bridge · 2025: 14 spills, 110 h
  • St Johns School CSO Not discharging
    Wessex Water · into River Avon(S) · 2.2 km by river above Bath Destructor Bridge · 2025: 18 spills, 19 h
  • South Parade CSO Not discharging
    Wessex Water · into River Avon · 2.1 km by river above Bath Destructor Bridge · 2025: 20 spills, 100 h
  • Funeral Directors CSO Not discharging
    Wessex Water · into River Avon · 2.1 km by river above Bath Destructor Bridge · 2025: 12 spills, 4.2 h
  • Spring Gardens Road Combined Sewer Not discharging
    Wessex Water · into River Avon(S) · 2.0 km by river above Bath Destructor Bridge · 2025: 12 spills, 88 h
  • Rossiter Road CSO Not discharging
    Wessex Water · into River Avon · 1.8 km by river above Bath Destructor Bridge · 2025: 14 spills, 128 h
  • Prior Park Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.8 km by river above Bath Destructor Bridge · 2025: 53 spills, 36 h · reaches the river through a sewer, so where it enters is approximate
  • Wellsway Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon · 1.8 km by river above Bath Destructor Bridge · 2025: 44 spills, 18 h
  • Prior Park Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.8 km by river above Bath Destructor Bridge · 2025: 9 spills, 1.1 h · reaches the river through a sewer, so where it enters is approximate
  • Widcombe Rise CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.8 km by river above Bath Destructor Bridge · 2025: 12 spills, 0.9 h · reaches the river through a sewer, so where it enters is approximate
  • Fox Hill Woodlands Cottage CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.8 km by river above Bath Destructor Bridge · 2025: 6 spills, 2.0 h · reaches the river through a sewer, so where it enters is approximate
  • Lyncombe Vale CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.8 km by river above Bath Destructor Bridge · 2025: 15 spills, 5.5 h · reaches the river through a sewer, so where it enters is approximate
  • Bewdley Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.8 km by river above Bath Destructor Bridge · 2025: 15 spills, 4.9 h · reaches the river through a sewer, so where it enters is approximate
  • Entry Hill Gardens CSO Not discharging
    Wessex Water · into The River Avon · 1.8 km by river above Bath Destructor Bridge · 2025: 65 spills, 60 h
  • Lyncombe Vale CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.8 km by river above Bath Destructor Bridge · 2025: 18 spills, 3.4 h · reaches the river through a sewer, so where it enters is approximate
  • Widcombe Baptist Church CSO Not discharging
    Wessex Water · into River Avon · 1.8 km by river above Bath Destructor Bridge · 2025: 24 spills, 28 h
  • Railway Place CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.7 km by river above Bath Destructor Bridge · 2025: 7 spills, 18 h · reaches the river through a sewer, so where it enters is approximate
  • Southgate Street CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.5 km by river above Bath Destructor Bridge · 2025: 15 spills, 3.8 h · reaches the river through a sewer, so where it enters is approximate
  • Broad Quay CSO Not discharging
    Wessex Water · into River Avon · 1.5 km by river above Bath Destructor Bridge · 2025: 27 spills, 167 h
  • Churchill Bridge Island CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.4 km by river above Bath Destructor Bridge · 2025: 20 spills, 6.4 h · reaches the river through a sewer, so where it enters is approximate
  • Green Park Syphon Inlet CSO Not discharging
    Wessex Water · into River Avon · 1.3 km by river above Bath Destructor Bridge · 2025: 11 spills, 97 h
  • Avon Street CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.2 km by river above Bath Destructor Bridge · 2025: 48 spills, 49 h · reaches the river through a sewer, so where it enters is approximate
  • Lower Bristol Road Not discharging
    Wessex Water · into River Avon · 1.1 km by river above Bath Destructor Bridge · 2025: 35 spills, 103 h
  • Westmoreland Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 800 m by river above Bath Destructor Bridge · 2025: 8 spills, 6.2 h · reaches the river through a sewer, so where it enters is approximate
  • Towpath Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon · 540 m by river above Bath Destructor Bridge · 2025: 20 spills, 62 h
  • Upper Bristol Road CSO Not discharging
    Wessex Water · into River Avon · 280 m by river above Bath Destructor Bridge · 2025: 50 spills, 25 h
Between Bath Destructor Bridge and Saltford43 overflows · 1 discharging now
  • WXW00118 Status unknown
    Wessex Water · 6.2 km by river above Saltford · 2025: 7 spills, 0.7 h · placed on the river by its position alone
  • Beckhampton Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 6.2 km by river above Saltford · 2025: 21 spills, 8.6 h · reaches the river through a sewer, so where it enters is approximate
  • CSO Adjacent To 22-23 Hazel Grove Not discharging
    Wessex Water · into River Avon (S) · 6.2 km by river above Saltford · 2025: 0 spills, 0 h
  • Rear Of 34 Wellsway Status unknown
    Wessex Water · into River Avon · 6.2 km by river above Saltford · 2025: 0 spills, 0 h
  • Wellsway Status unknown
    Wessex Water · into River Avon (S) · 6.2 km by river above Saltford · 2025: 11 spills, 0.7 h
  • Bloomfield Rd Junction CSO Status unknown
    Wessex Water · into River Avon Via Sws · 6.2 km by river above Saltford · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Bloomfield Road CSO Discharging now since
    Wessex Water · into River Avon Via Sws · 6.2 km by river above Saltford · 2025: 46 spills, 27 h · reaches the river through a sewer, so where it enters is approximate
  • Dorset Close CSO Not discharging
    Wessex Water · into River Avon Via Sws · 6.2 km by river above Saltford · 2025: 9 spills, 1.7 h · reaches the river through a sewer, so where it enters is approximate
  • Hiscocks Drive CSO Not discharging
    Wessex Water · into River Avon Via Sws · 6.2 km by river above Saltford · 2025: 22 spills, 18 h · reaches the river through a sewer, so where it enters is approximate
  • Oldfield Lane CSO Not discharging
    Wessex Water · into River Avon Via Sws · 6.2 km by river above Saltford · 2025: 51 spills, 31 h · reaches the river through a sewer, so where it enters is approximate
  • 24 To 39 Hazel Grove Not discharging
    Wessex Water · into River Avon Via Sws · 6.2 km by river above Saltford · 2025: 11 spills, 2.0 h · reaches the river through a sewer, so where it enters is approximate
  • Moorland Road CSO Not discharging
    Wessex Water · into River Avon(S) · 6.2 km by river above Saltford · 2025: 46 spills, 35 h
  • Midland Road Pumping Station Not discharging
    Wessex Water · into River Avon · 6.2 km by river above Saltford · 2025: 23 spills, 194 h
  • Lansdown Lane Combined Sewer O'flow Not discharging
    Wessex Water · into River Avon Via Sws · 5.8 km by river above Saltford · 2025: 14 spills, 24 h · reaches the river through a sewer, so where it enters is approximate
  • Trafalgar Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.7 km by river above Saltford · 2025: 53 spills, 108 h · reaches the river through a sewer, so where it enters is approximate
  • Hungerford Road CSO Not discharging
    Wessex Water · into River Avon · 5.7 km by river above Saltford · 2025: 3 spills, 0.4 h
  • Locksbrook Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.7 km by river above Saltford · 2025: 16 spills, 4.7 h · reaches the river through a sewer, so where it enters is approximate
  • Lucklands Road Combined Sewer Of Monitor offline
    Wessex Water · into The River Avon Via Sws · 5.7 km by river above Saltford · 2025: 14 spills, 4.7 h · reaches the river through a sewer, so where it enters is approximate
  • Southlands Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon Via Sws · 5.7 km by river above Saltford · 2025: 6 spills, 0.7 h · reaches the river through a sewer, so where it enters is approximate
  • Windsor Court CSO Not discharging
    Wessex Water · into River Avon · 5.7 km by river above Saltford · 2025: 22 spills, 271 h
  • Englishcombe Lane CSO Not discharging
    Wessex Water · into River Avon (S) · 5.7 km by river above Saltford · 2025: 49 spills, 29 h
  • Englishcombe Lane CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.7 km by river above Saltford · 2025: 3 spills, 0.1 h · reaches the river through a sewer, so where it enters is approximate
  • Lymore Gardens CSO Not discharging
    Wessex Water · into River Avon(S) · 5.7 km by river above Saltford · 2025: 2 spills, 0.3 h
  • Rush Hill Not discharging
    Wessex Water · into River Avon · 5.7 km by river above Saltford · 2025: 1 spill, 0.1 h
  • Rush Hill CSO Not discharging
    Wessex Water · into River Avon · 5.7 km by river above Saltford · 2025: 20 spills, 4.4 h
  • Southdown Road CSO Not discharging
    Wessex Water · into River Avon (S) · 5.6 km by river above Saltford · 2025: 0 spills, 0 h
  • Dartmouth Avenue CSO Not discharging
    Wessex Water · into The River Avon Via Sws · 5.6 km by river above Saltford · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Mount Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.6 km by river above Saltford · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • White Way Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.6 km by river above Saltford · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Bellotts Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.6 km by river above Saltford · 2025: 20 spills, 14 h · reaches the river through a sewer, so where it enters is approximate
  • Millmead Road CSO Not discharging
    Wessex Water · into The River Avon Via Sws · 5.6 km by river above Saltford · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Fieldings Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 5.3 km by river above Saltford · 2025: 3 spills, 0.9 h · reaches the river through a sewer, so where it enters is approximate
  • Station Road CSO Not discharging
    Wessex Water · into River Avon · 5.2 km by river above Saltford · 2025: 16 spills, 79 h
  • Weston Lock Retail Park Not discharging
    Wessex Water · into River Avon · 5.1 km by river above Saltford · 2025: 18 spills, 145 h
  • 223 Haycombe Drive Not discharging
    Wessex Water · into The River Avon Via Sws · 5.1 km by river above Saltford · 2025: 2 spills, 0.2 h · reaches the river through a sewer, so where it enters is approximate
  • Weirside Court CSO Not discharging
    Wessex Water · into River Avon · 5.0 km by river above Saltford · 2025: 3 spills, 2.9 h
  • Lower Bristol Road Not discharging
    Wessex Water · into River Avon (S) · 4.6 km by river above Saltford · 2025: 6 spills, 43 h
  • Brassmill Lane (East) CSO Not discharging
    Wessex Water · into River Avon · 4.6 km by river above Saltford · 2025: 18 spills, 115 h
  • Newbridge Road CSO Not discharging
    Wessex Water · into River Avon(S) · 4.6 km by river above Saltford · 2025: 44 spills, 26 h
  • Brassmill Lane (East) CSO Not discharging
    Wessex Water · into River Avon Via Sws · 4.6 km by river above Saltford · 2025: 6 spills, 12 h · reaches the river through a sewer, so where it enters is approximate
  • Brassmill Lane CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 4.2 km by river above Saltford · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Corston Pumping Station Not discharging
    Wessex Water · into Corston Brook · 1.9 km by river above Saltford · 2025: 29 spills, 99 h
  • Bath Road CSO Not discharging
    Wessex Water · into River Avon · 190 m by river above Saltford · 2025: 9 spills, 2.4 h
Between Saltford and Keynsham, Rivermead5 overflows
  • Saltford High Street CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 5.8 km by river above Keynsham, Rivermead · 2025: 38 spills, 37 h · reaches the river through a sewer, so where it enters is approximate
  • Mead Lane Pumping Station Not discharging
    Wessex Water · into River Avon Via Sws · 5.5 km by river above Keynsham, Rivermead · 2025: 6 spills, 53 h · reaches the river through a sewer, so where it enters is approximate
  • Bath (Saltford) Wrc Not discharging
    Wessex Water · into River Avon · 4.1 km by river above Keynsham, Rivermead · 2025: 46 spills, 925 h
  • Church Road Pumping Station Not discharging
    Wessex Water · into River Boyd · 3.1 km by river above Keynsham, Rivermead · 2025: 10 spills, 53 h
  • Wickhouse Farm CSO Not discharging
    Wessex Water · into River Avon Via Sws · 2.3 km by river above Keynsham, Rivermead · 2025: 2 spills, 3.6 h · reaches the river through a sewer, so where it enters is approximate
River Boyd, above Wickjoins the Avon above Keynsham, Rivermead2 overflows
  • Pucklechurch WwTW Not discharging
    Wessex Water · into Feltham Brook · 4.5 km by river above Wick · 2025: 63 spills, 657 h
  • Doynton Wastewater Treatment Works Not discharging
    Wessex Water · into River Boyd (S) · 2.0 km by river above Wick · 2025: 58 spills, 1,166 h
River Boyd, above Bittonjoins the Avon above Keynsham, Rivermead3 overflows
  • The Green CSO Not discharging
    Wessex Water · into The River Boyd (S) · 3.6 km by river above Bitton · 2025: 40 spills, 115 h
  • Sainsbury Mill CSO Not discharging
    Wessex Water · into The River Boyd (S) · 3.5 km by river above Bitton · 2025: 6 spills, 47 h
  • Wick Wastewater Treatment Works Not discharging
    Wessex Water · into River Boyd · 2.7 km by river above Bitton · 2025: 33 spills, 394 h
Brislington Brook, above Brislingtonjoins the Avon above Bristol Netham Lock14 overflows
  • Saltwell Viaduct CSO Not discharging
    Wessex Water · into Trib Of Brislington Brook · 2.4 km by river above Brislington · 2025: 0 spills, 0 h
  • Crossways Road CSO Not discharging
    Wessex Water · into Trib Of Brislington Brook Sws · 1.4 km by river above Brislington · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Somerdale Av Salcombe Rd CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 1.4 km by river above Brislington · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Somerdale Av Spring Gardens CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 1.4 km by river above Brislington · 2025: 14 spills, 8.2 h · reaches the river through a sewer, so where it enters is approximate
  • Unit 601/601a Central Park CSO Not discharging
    Wessex Water · into Brislington Brook, Via Sws · 1.4 km by river above Brislington · 2025: 29 spills, 44 h · reaches the river through a sewer, so where it enters is approximate
  • Airport Road CSO Not discharging
    Wessex Water · into Brislington Brook(S) · 1.3 km by river above Brislington · 2025: 31 spills, 144 h
  • 424 Wells Road CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 940 m by river above Brislington · 2025: 20 spills, 5.8 h · reaches the river through a sewer, so where it enters is approximate
  • 424 Wells Road CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 920 m by river above Brislington · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • 424 Wells Road CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 920 m by river above Brislington · 2025: 1 spill, 0.1 h · reaches the river through a sewer, so where it enters is approximate
  • 424 Wells Road CSO Not discharging
    Wessex Water · into Brislington Brook · 920 m by river above Brislington · 2025: 0 spills, 0 h
  • 424 Wells Road CSO Not discharging
    Wessex Water · into Brislington Brook · 920 m by river above Brislington · 2025: 0 spills, 0 h
  • 424 Wells Road CSO Not discharging
    Wessex Water · into Brislington Brook · 920 m by river above Brislington · 2025: 0 spills, 0 h
  • Wootton Park CSO Not discharging
    Wessex Water · into Brislington Brook · 850 m by river above Brislington · 2025: 0 spills, 0 h
  • Ellesmere Road CSO Not discharging
    Wessex Water · into Trib Of The Brislington Brook · 560 m by river above Brislington · 2025: 40 spills, 170 h
River Chew, above Compton Dandojoins the Avon above Bristol Netham Lock6 overflows
  • Chew Stoke Pumping Station Not discharging
    Wessex Water · into Trib Of River Chew · 14.2 km by river above Compton Dando · 2025: 50 spills, 74 h
  • Chew Stoke Watewater Treatment Work Not discharging
    Wessex Water · into River Chew · 13.2 km by river above Compton Dando · 2025: 139 spills, 2,529 h
  • Battle Lane CSO Not discharging
    Wessex Water · into Winford Brook · 12.7 km by river above Compton Dando · 2025: 25 spills, 93 h
  • Chew Magna PS Not discharging
    Wessex Water · into River Chew(S) · 11.3 km by river above Compton Dando · 2025: 14 spills, 49 h
  • Stanton Drew Pumping Station Not discharging
    Wessex Water · into River Chew (S) · 9.0 km by river above Compton Dando · 2025: 4 spills, 4.3 h
  • Stanton Drew Wrc Not discharging
    Wessex Water · into River Chew · 8.2 km by river above Compton Dando · 2025: 11 spills, 78 h
Between Bristol Netham Lock and Netham Weir45 overflows
  • Irving Close CSO Not discharging
    Wessex Water · into Trib Of Warmley Brook Via Sws · 15.5 km by river above Netham Weir · 2025: 46 spills, 32 h · reaches the river through a sewer, so where it enters is approximate
  • Station Road CSO Not discharging
    Wessex Water · into Trib Of Warmley Brook(S) · 15.5 km by river above Netham Weir · 2025: 16 spills, 78 h
  • Compton Dando WwTW Not discharging
    Wessex Water · into Bathford Brook (S) · 15.0 km by river above Netham Weir · 2025: 44 spills, 226 h
  • Compton Dando Sewage Pumping Statio Not discharging
    Wessex Water · into River Chew(S) · 14.7 km by river above Netham Weir · 2025: 39 spills, 528 h
  • Station Road CSO Not discharging
    Wessex Water · into Warmley Brook (S) · 14.6 km by river above Netham Weir · 2025: 0 spills, 0 h
  • 20 New Cheltenham Road CSO Not discharging
    Wessex Water · into Warmley Brook · 14.4 km by river above Netham Weir · 2025: 10 spills, 2.6 h
  • 43 New Cheltenham Road CSO Not discharging
    Wessex Water · into Warmley Brook Via Sws · 14.4 km by river above Netham Weir · 2025: 50 spills, 49 h · reaches the river through a sewer, so where it enters is approximate
  • 48 Downend Road CSO Not discharging
    Wessex Water · into Warmley Brook Via Sws · 14.4 km by river above Netham Weir · 2025: 14 spills, 3.8 h · reaches the river through a sewer, so where it enters is approximate
  • 84 New Cheltenham Road CSO Not discharging
    Wessex Water · into Warmley Brook Via Sws · 14.4 km by river above Netham Weir · 2025: 9 spills, 0.7 h · reaches the river through a sewer, so where it enters is approximate
  • Alma Road Combined Sewer Overflow Not discharging
    Wessex Water · into Warmley Brook Via Sws · 14.4 km by river above Netham Weir · 2025: 38 spills, 46 h · reaches the river through a sewer, so where it enters is approximate
  • CSO O/S 23/25 New Cheltenham Road Not discharging
    Wessex Water · into Warmley Brook(S) · 14.4 km by river above Netham Weir · 2025: 16 spills, 6.0 h
  • Holly Hill Road CSO Not discharging
    Wessex Water · into Warmley Brook Via Sws · 14.4 km by river above Netham Weir · 2025: 6 spills, 3.6 h · reaches the river through a sewer, so where it enters is approximate
  • Kingsholme Road CSO Not discharging
    Wessex Water · into Warmley Brook Via Sws · 14.4 km by river above Netham Weir · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Storage Tank Overflow Not discharging
    Wessex Water · into Warmley Brook(S) · 14.4 km by river above Netham Weir · 2025: 0 spills, 0 h
  • 170 New Cheltenham Road CSO Not discharging
    Wessex Water · into Warmley Brook Via Sws · 14.4 km by river above Netham Weir · 2025: 1 spill, 0.3 h · reaches the river through a sewer, so where it enters is approximate
  • Ullswater Close Pumping Station Not discharging
    Wessex Water · into A Trib Of The Siston Brook · 12.6 km by river above Netham Weir · 2025: 0 spills, 0 h
  • 42 Orchard Vale CSO Not discharging
    Wessex Water · into Siston Brook Via Sws · 12.5 km by river above Netham Weir · 2025: 30 spills, 23 h · reaches the river through a sewer, so where it enters is approximate
  • Hill Street Combined Sewer Overflow Not discharging
    Wessex Water · into Siston Brook Via Sws · 12.5 km by river above Netham Weir · 2025: 6 spills, 0.4 h · reaches the river through a sewer, so where it enters is approximate
  • Orchard Road CSO Not discharging
    Wessex Water · into Siston Brook Via Sws · 12.5 km by river above Netham Weir · 2025: 5 spills, 0.7 h · reaches the river through a sewer, so where it enters is approximate
  • Mill Lane Combined Sewer Overflow Not discharging
    Wessex Water · into Siston Brook (S) · 11.6 km by river above Netham Weir · 2025: 4 spills, 0.4 h
  • Keynsham Low Level Pumping Station Not discharging
    Wessex Water · into River Chew · 9.7 km by river above Netham Weir · 2025: 8 spills, 67 h
  • Keynsham High Level PS Not discharging
    Wessex Water · into River Chew · 9.6 km by river above Netham Weir · 2025: 43 spills, 133 h
  • Keynsham Wastewater Treatment Works Not discharging
    Wessex Water · into River Avon · 9.4 km by river above Netham Weir · 2025: 27 spills, 256 h
  • Willsbridge Pumping Station Not discharging
    Wessex Water · into Siston Brook · 9.1 km by river above Netham Weir · 2025: 0 spills, 0 h
  • Willsbridge Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon · 8.1 km by river above Netham Weir · 2025: 45 spills, 221 h
  • The Hams Pumping Station Not discharging
    Wessex Water · into River Avon · 6.7 km by river above Netham Weir · 2025: 50 spills, 47 h
  • 12 Sidcot Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 4.6 km by river above Netham Weir · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Broomhill Road CSO Not discharging
    Wessex Water · into River Avon Via Sws · 4.6 km by river above Netham Weir · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Outside 8 Sidcot Not discharging
    Wessex Water · into River Avon(S) · 4.6 km by river above Netham Weir · 2025: 0 spills, 0 h
  • 8 Hulse Road CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 3.7 km by river above Netham Weir · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Bath Road (No 2) CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 3.5 km by river above Netham Weir · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Bath Road (No 2) CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 3.5 km by river above Netham Weir · 2025: 6 spills, 0.5 h · reaches the river through a sewer, so where it enters is approximate
  • Brislington Hill CSO Not discharging
    Wessex Water · into Brislington Brook Via Sws · 3.5 km by river above Netham Weir · 2025: 11 spills, 11 h · reaches the river through a sewer, so where it enters is approximate
  • 112 School Road Not discharging
    Wessex Water · into Brislington Brook · 3.1 km by river above Netham Weir · 2025: 0 spills, 0 h
  • WXW01306 Not discharging
    Wessex Water · 2.2 km by river above Netham Weir · 2025: 8 spills, 1.7 h · placed on the river by its position alone
  • WXW01308 Not discharging
    Wessex Water · 2.2 km by river above Netham Weir · 2025: 0 spills, 0 h · placed on the river by its position alone
  • WXW01309 Not discharging
    Wessex Water · 2.2 km by river above Netham Weir · 2025: 4 spills, 0.6 h · placed on the river by its position alone
  • Hanham High Street CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 2.2 km by river above Netham Weir · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate
  • Polly Barnes Hill CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 2.2 km by river above Netham Weir · 2025: 57 spills, 74 h · reaches the river through a sewer, so where it enters is approximate
  • Footshill Road CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 2.2 km by river above Netham Weir · 2025: 7 spills, 1.1 h · reaches the river through a sewer, so where it enters is approximate
  • Lower Hanham Road CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 2.2 km by river above Netham Weir · 2025: 26 spills, 18 h · reaches the river through a sewer, so where it enters is approximate
  • Beechwood Avenue CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 2.2 km by river above Netham Weir · 2025: 23 spills, 14 h · reaches the river through a sewer, so where it enters is approximate
  • Lower Conham Vale CSO Not discharging
    Wessex Water · into River Avon (Via Sws) · 2.2 km by river above Netham Weir · 2025: 8 spills, 1.9 h · reaches the river through a sewer, so where it enters is approximate
  • St Annes Terrace CSO Not discharging
    Wessex Water · into Brislington Brook · 1.8 km by river above Netham Weir · 2025: 19 spills, 29 h
  • Marion Walk CSO Not discharging
    Wessex Water · into River Avon Via Sws · 1.4 km by river above Netham Weir · 2025: 0 spills, 0 h · reaches the river through a sewer, so where it enters is approximate

Near these gauges, connection not known

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

  • Whitby Road Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon Via Sws · 60 m from Netham Weir in a straight line · too close to Netham Weir to say which side · 2025: 6 spills, 2.6 h
  • Feeder Road Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon (Estuarine) · 240 m from Netham Weir in a straight line · discharges to the sea, an estuary or tidal water · 2025: 5 spills, 17 h
  • Wellsway Combined Sewer Overflow Not discharging
    Wessex Water · into A Culverted Trib Of River Avon · 440 m from Bath Destructor Bridge in a straight line · no mapped watercourse close enough to be sure · 2025: 6 spills, 0.3 h
  • Stambridge CSO Not discharging
    Wessex Water · into St. Catherines Brook · 610 m from Bathford in a straight line · several watercourses close by, nothing to choose between them · 2025: 50 spills, 300 h
  • Whitby Road Embankment PS Not discharging
    Wessex Water · into River Avon (Estuarine) · 740 m from Netham Weir in a straight line · discharges to the sea, an estuary or tidal water · 2025: 1 spill, 0.6 h
  • Ashton Avenue Pumping Station Not discharging
    Wessex Water · into River Avon · 780 m from Ashton Vale in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 23 spills, 47 h
  • Whitby Road Combined Sewer Overflow Not discharging
    Wessex Water · into River Avon Via Sws (Estuarine) · 780 m from Netham Weir in a straight line · discharges to the sea, an estuary or tidal water · 2025: 1 spill, 0.3 h
  • Bath Road Trading Estate CSO Not discharging
    Wessex Water · into River Avon (Estuarine) · 940 m from Netham Weir in a straight line · discharges to the sea, an estuary or tidal water · 2025: 3 spills, 1.0 h
  • Central Trading Estate PS Not discharging
    Wessex Water · into River Avon (Estuarine) · 1.1 km from Netham Weir in a straight line · discharges to the sea, an estuary or tidal water · 2025: 2 spills, 1.4 h
  • Plimsoll Statue CSO Not discharging
    Wessex Water · into River Avon (Estuarine) · 1.3 km from Ashton Vale in a straight line · discharges to the sea, an estuary or tidal water · 2025: 37 spills, 260 h
  • Bristol Road CSO Not discharging
    Wessex Water · into Charlton Bottom Via Sws · 1.4 km from Keynsham, Rivermead in a straight line · reaches the river through a sewer or culvert · 2025: 24 spills, 6.3 h
  • Central Trading Estate CSO Not discharging
    Wessex Water · into River Avon (Estuarine) · 1.4 km from Netham Weir in a straight line · discharges to the sea, an estuary or tidal water · 2025: 8 spills, 1.3 h
  • Charlton Road CSO Not discharging
    Wessex Water · into Charlton Bottom Via Sws · 1.4 km from Keynsham, Rivermead in a straight line · reaches the river through a sewer or culvert · 2025: 7 spills, 7.9 h
  • 98 Hotwell Road CSO Not discharging
    Wessex Water · into Bristol Frome Floating Harbour · 1.5 km from Ashton Vale in a straight line · discharges to the sea, an estuary or tidal water · 2025: 3 spills, 1.3 h
  • 56 Hotwell Road CSO Not discharging
    Wessex Water · into Floating Harbour · 1.6 km from Ashton Vale in a straight line · discharges to the sea, an estuary or tidal water · 2025: 7 spills, 5.1 h

60 more near these gauges whose connection is not known.

River Avon — Warwickshire Avon

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

  • 1 reports discharging now
  • 134 not discharging
  • 2 offline or silent: 0 monitor offline, 0 status unknown, 2 no live feed

Official figures for 2025, for the overflows traced upstream of Upper Pound: 2,047 spills over 16,662 hours in total, across the 136 that have a figure. 1 had no usable monitor data that year.

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 Avon includes the smaller streams that join it there. Every overflow traced is listed here, each stretch in full. Back to the short lists →

Above Lilbourne, the Avon’s highest gauge3 overflows
Clay Coton Brook, above Clay Cotonjoins the Avon above Lilbourne1 overflow
  • Yelvertoft STW Not discharging
    Severn Trent Water · into Clay Coton Brook · 1.3 km by river above Clay Coton · 2025: 0 spills, 0 h
Between Lilbourne and Rugby2 overflows
River Swift, above Churchoverjoins the Avon above Rugby3 overflows
Between Rugby and Stareton7 overflows
  • Rugby - Hunters Lane (Avon Mill) (CSO) Not discharging
    Severn Trent Water · into River Avon · 31.5 km by river above Stareton · 2025: 6 spills, 56 h
  • Rugby Newbold STW Not discharging
    Severn Trent Water · into The River Avon · 30.8 km by river above Stareton · 2025: 17 spills, 138 h
  • Rugby Newbold STW Not discharging
    Severn Trent Water · into The River Avon · 30.8 km by river above Stareton · 2025: 1 spill, 0.1 h
  • Long Lawford Sewage Pumping Station Not discharging
    Severn Trent Water · into River Avon & Long Lawford Brk · 26.0 km by river above Stareton · 2025: 0 spills, 0 h
  • Church Lawford STW Not discharging
    Severn Trent Water · into River Avon · 21.2 km by river above Stareton · 2025: 4 spills, 52 h
  • Ryton-On-Dunsmore - Church Road TPS Not discharging
    Severn Trent Water · into Tributary Of River Avon · 11.3 km by river above Stareton · 2025: 8 spills, 29 h
  • Bubbenhall Sewage Treatment Works Not discharging
    Severn Trent Water · into River Avon · 2.2 km by river above Stareton · 2025: 28 spills, 400 h
Between Stareton and Warwick14 overflows
  • Canley CSO Not discharging
    Severn Trent Water · into Tributary Of Canley Brook · 24.4 km by river above Warwick · 2025: 4 spills, 21 h
  • Kenilworth - The Close-Mill End CSO Not discharging
    Severn Trent Water · into Finham Brook · 21.9 km by river above Warwick · 2025: 1 spill, 0.4 h
  • Kenilworth - Dalehouse Lane TPS Not discharging
    Severn Trent Water · into Finham Brook · 20.8 km by river above Warwick · 2025: 26 spills, 198 h
  • Coventry-Finham WwTW Not discharging
    Severn Trent Water · into Finham Brook · 16.5 km by river above Warwick · 2025: 37 spills, 487 h
  • Coventry-Finham WwTW Not discharging
    Severn Trent Water · into River Sowe · 16.0 km by river above Warwick · 2025: 25 spills, 339 h
  • Weston Under Wetherley STW Not discharging
    Severn Trent Water · into River Leam · 15.5 km by river above Warwick · 2025: 11 spills, 141 h
  • 169 Warwick Road CSO Not discharging
    Severn Trent Water · into Cattle Brook · 8.5 km by river above Warwick · 2025: 23 spills, 55 h
  • Leamington SSO 11 And 12 Not discharging
    Severn Trent Water · into River Leam · 2.8 km by river above Warwick · 2025: 0 spills, 0 h
  • Leamington CSO 50 Not discharging
    Severn Trent Water · into River Leam · 2.4 km by river above Warwick · 2025: 26 spills, 43 h
  • Bath Place CSO Not discharging
    Severn Trent Water · into River Leam · 2.3 km by river above Warwick · 2025: 12 spills, 13 h
  • Stamford Gardens CSO Overflow 20 Not discharging
    Severn Trent Water · into River Leam · 1.9 km by river above Warwick · 2025: 4 spills, 22 h
  • Leamington-Princes Drive CSO 19b Not discharging
    Severn Trent Water · into River Leam · 1.3 km by river above Warwick · 2025: 13 spills, 36 h
  • N Leamington Foul Sewer CSO 90 Not discharging
    Severn Trent Water · into River Leam · 1.3 km by river above Warwick · 2025: 17 spills, 45 h
  • Princes Drive CSO 19a Not discharging
    Severn Trent Water · into River Leam · 1.3 km by river above Warwick · 2025: 13 spills, 47 h
River Leam, above Kites Hardwickjoins the Avon above Warwick2 overflows
  • Hellidon - Stockwell Lane SPS Not discharging
    Severn Trent Water · into River Leam · 20.8 km by river above Kites Hardwick · 2025: 3 spills, 2.4 h
  • Braunston STW Not discharging
    Severn Trent Water · into River Leam · 10.7 km by river above Kites Hardwick · 2025: 28 spills, 239 h
River Leam, above Eathorpejoins the Avon above Warwick2 overflows
  • Itchen Bank Sewage Treatment Works Not discharging
    Severn Trent Water · into River Itchen · 15.1 km by river above Eathorpe · 2025: 53 spills, 561 h
  • Long Itchington SPS Not discharging
    Severn Trent Water · into River Itchen · 11.3 km by river above Eathorpe · 2025: 12 spills, 164 h
River Itchen, above Southamjoins the Leam4 overflows
  • Napton Sewage Treatment Works Not discharging
    Severn Trent Water · into Tributary Of River Stowe · 9.0 km by river above Southam · 2025: 26 spills, 168 h
  • Habury Sewage Pmp.stn - Storm Not discharging
    Severn Trent Water · into River Itchen · 3.9 km by river above Southam · 2025: 5 spills, 41 h
  • Southam - Banbury Road CSO Not discharging
    Severn Trent Water · into River Stowe · 2.7 km by river above Southam · 2025: 7 spills, 8.3 h
  • Southam Pumping Station (SPS) Not discharging
    Severn Trent Water · into River Stowe · 1.9 km by river above Southam · 2025: 16 spills, 140 h
River Sherbourne, above Holyhead Roadjoins the Avon above Warwick1 overflow
River Sherbourne, above Hope Street, Coventryjoins the Avon above Warwick4 overflows
  • Eastern Green - Unicorn Lane CSO Not discharging
    Severn Trent Water · into Brookstray · 4.4 km by river above Hope Street, Coventry · 2025: 4 spills, 7.4 h
  • Brookside Avenue CSO Not discharging
    Severn Trent Water · into Brookstray · 2.6 km by river above Hope Street, Coventry · 2025: 3 spills, 3.7 h
  • Coventry - Maudslay Road (CSO) Not discharging
    Severn Trent Water · into Trib Of River Sherbourne · 1.9 km by river above Hope Street, Coventry · 2025: 3 spills, 1.3 h
  • Allesley Foul Sewer - Storm O/F Not discharging
    Severn Trent Water · into River Sherbourne · 700 m by river above Hope Street, Coventry · 2025: 11 spills, 3.2 h
River Sherbourne, above Charterhouse Bridgejoins the Avon above Warwick2 overflows
  • Earlsdon - Albany Road (CSO) Not discharging
    Severn Trent Water · into River Sherbourne · 2.5 km by river above Charterhouse Bridge · 2025: 0 spills, 0 h
  • Meadow Street CSO Not discharging
    Severn Trent Water · into River Sherbourne · 2.4 km by river above Charterhouse Bridge · 2025: 0 spills, 0 h
Between Warwick and Stratford8 overflows
  • Lodge Farm Drive CSO Not discharging
    Severn Trent Water · into Bell Brook · 24.0 km by river above Stratford · 2025: 13 spills, 72 h
  • Snitterfield STW Not discharging
    Severn Trent Water · into Sherbourne Brook · 23.6 km by river above Stratford · 2025: 19 spills, 92 h
  • Lighthorne Sewage Pumping Station Not discharging
    Severn Trent Water · into Trib Of Thelsford Brook · 20.6 km by river above Stratford · 2025: 6 spills, 28 h
  • Moreton Paddox STW Not discharging
    Severn Trent Water · into Tributary Of River Avon · 15.5 km by river above Stratford · 2025: 24 spills, 67 h
  • Wellesbourne Sewage Treatment Works Not discharging
    Severn Trent Water · into River Dene · 10.4 km by river above Stratford · 2025: 87 spills, 1,509 h
  • Main Street Combined Sewer Overlow Not discharging
    Severn Trent Water · into River Avon · 2.5 km by river above Stratford · 2025: 0 spills, 0 h
  • Tiddington Road CSO Not discharging
    Severn Trent Water · into River Avon · 180 m by river above Stratford · 2025: 7 spills, 7.8 h
  • Tiddington Road CSO Not discharging
    Severn Trent Water · into River Avon · 180 m by river above Stratford · 2025: 3 spills, 5.5 h
River Dene, above Waltonjoins the Avon above Stratford5 overflows
  • Banbury Road CSO Not discharging
    Severn Trent Water · into River Dene · 11.4 km by river above Walton · 2025: 1 spill, 0.4 h
  • Southam Street CSO Not discharging
    Severn Trent Water · into River Dene · 11.4 km by river above Walton · 2025: 1 spill, 0.1 h
  • Little Kineton CSO Not discharging
    Severn Trent Water · into River Dene · 10.7 km by river above Walton · 2025: 3 spills, 2.7 h
  • Castle Crescent CSO Not discharging
    Severn Trent Water · into River Dene · 10.4 km by river above Walton · 2025: 1 spill, 4.6 h
  • Kineton Sewage Treatment Works Not discharging
    Severn Trent Water · into River Dene · 9.7 km by river above Walton · 2025: 19 spills, 194 h
Between Stratford and Bidford on Avon11 overflows
  • Bridgeway CSO Not discharging
    Severn Trent Water · into The River Avon · 15.4 km by river above Bidford on Avon · 2025: 0 spills, 0 h
  • Stratford - Banbury Rd/Swans Nest (CSO) No live feed
    Severn Trent Water · into River Avon · 15.4 km by river above Bidford on Avon · 2025: no data
  • Shipston Road CSO Not discharging
    Severn Trent Water · into Rush Brook · 14.6 km by river above Bidford on Avon · 2025: 7 spills, 24 h
  • Clifford Chambers - The Close (CSO) Not discharging
    Severn Trent Water · into River Stour · 14.3 km by river above Bidford on Avon · 2025: 10 spills, 87 h
  • Paddock Lane Sewage Pumping Station Not discharging
    Severn Trent Water · into River Avon · 13.8 km by river above Bidford on Avon · 2025: 20 spills, 143 h
  • Long Marston TPS (CSO) Not discharging
    Severn Trent Water · into Gran Brook · 13.7 km by river above Bidford on Avon · 2025: 8 spills, 69 h
  • Stratford Milcote STW Not discharging
    Severn Trent Water · into River Avon · 11.7 km by river above Bidford on Avon · 2025: 26 spills, 193 h
  • Dorsington Sewage Treatment Works Not discharging
    Severn Trent Water · into Noleham Brook · 5.7 km by river above Bidford on Avon · 2025: 16 spills, 57 h
  • Welford-On-Avon - Boat Lane (SSO) Not discharging
    Severn Trent Water · into River Avon · 5.4 km by river above Bidford on Avon · 2025: 30 spills, 175 h
  • Barton Road Combined Sewer Overflow Not discharging
    Severn Trent Water · into River Avon · 5.0 km by river above Bidford on Avon · 2025: 4 spills, 17 h
  • Bidford On Avon - High Street (CSO) Not discharging
    Severn Trent Water · into River Avon · 150 m by river above Bidford on Avon · 2025: 0 spills, 0 h
River Stour, above Shipstonjoins the Avon above Bidford on Avon5 overflows
  • Chipping Campden STW Not discharging
    Severn Trent Water · into Cam Brook · 19.6 km by river above Shipston · 2025: 25 spills, 179 h
  • Sheafhouse Farm CSO Not discharging
    Severn Trent Water · into Blockley Brook · 17.4 km by river above Shipston · 2025: 4 spills, 18 h
  • Blockley Sewage Treatment Works Not discharging
    Severn Trent Water · into Blockley Brook · 16.2 km by river above Shipston · 2025: 32 spills, 480 h
  • Banbury - Orchard Close (CSO) Not discharging
    Severn Trent Water · into Sutton Brook · 13.5 km by river above Shipston · 2025: 32 spills, 134 h
  • Cherington STW Not discharging
    Severn Trent Water · into River Stour · 9.0 km by river above Shipston · 2025: 44 spills, 568 h
River Stour, above Wimpstonejoins the Avon above Bidford on Avon4 overflows
  • Adj. Tysoe STW - Stm/Emerg O/F Not discharging
    Severn Trent Water · into Tysoe Brook · 25.8 km by river above Wimpstone · 2025: 5 spills, 15 h · placed on the river by its position alone
  • Caudlewell Pumping Station Not discharging
    Severn Trent Water · into River Stour · 17.3 km by river above Wimpstone · 2025: 29 spills, 304 h
  • Mill Lane Pumping Station Not discharging
    Severn Trent Water · into River Stour (Avon) · 9.6 km by river above Wimpstone · 2025: 11 spills, 71 h
  • Mill House Pumping Station Not discharging
    Severn Trent Water · into River Stour (Avon) · 7.7 km by river above Wimpstone · 2025: 17 spills, 120 h
Between Bidford on Avon and Evesham13 overflows
  • Saintbury - The Cross (CSO) No live feed
    Severn Trent Water · into Trib Of Broadway Brook · 13.6 km by river above Evesham · 2025: 1 spill, 0.4 h · placed on the river by its position alone
  • So High St And So Pleck Not discharging
    Severn Trent Water · into River Avon · 12.5 km by river above Evesham · 2025: 14 spills, 31 h
  • So High St And So Pleck Not discharging
    Severn Trent Water · into River Avon · 12.5 km by river above Evesham · 2025: 4 spills, 3.8 h
  • Honeybourne Sewage Treatment Works Not discharging
    Severn Trent Water · into Tributary Of Broadway Brook · 11.2 km by river above Evesham · 2025: 15 spills, 178 h
  • Bidford On Avon STW Not discharging
    Severn Trent Water · into River Arrow · 10.9 km by river above Evesham · 2025: 6 spills, 29 h
  • Station Road CSO Not discharging
    Severn Trent Water · into Tributary Of Ban Brook · 10.9 km by river above Evesham · 2025: 2 spills, 8.9 h
  • South Littleton - Farm Lane SPS Not discharging
    Severn Trent Water · into Littleton Brook · 8.6 km by river above Evesham · 2025: 12 spills, 50 h
  • Wickhamford - Golden Lane SPS Not discharging
    Severn Trent Water · into Tributary Of Badsey Brook · 7.4 km by river above Evesham · 2025: 4 spills, 38 h
  • Harvington STW Not discharging
    Severn Trent Water · into Harvington Brook · 6.1 km by river above Evesham · 2025: 1 spill, 5.5 h
  • High Street Badsey CSO Not discharging
    Severn Trent Water · into Badsey Brook · 5.8 km by river above Evesham · 2025: 8 spills, 21 h
  • Blackminster WwTW Not discharging
    Severn Trent Water · into Broadway Brook · 4.3 km by river above Evesham · 2025: 6 spills, 69 h
  • Evesham SPS Not discharging
    Severn Trent Water · into River Avon · 380 m by river above Evesham · 2025: 0 spills, 0 h
  • Burford Road CSO Not discharging
    Severn Trent Water · into River Avon · 280 m by river above Evesham · 2025: 4 spills, 0.5 h
Bunches Brook, above Childswickhamjoins the Avon above Evesham1 overflow
  • Broadway - Cheltenham Road (CSO) Not discharging
    Severn Trent Water · into Trib Of Badsey Brook · 1.7 km by river above Childswickham · 2025: 39 spills, 124 h
River Arrow, above Studleyjoins the Avon above Evesham4 overflows
  • Radford Road CSO Not discharging
    Severn Trent Water · into River Arrow · 12.8 km by river above Studley · 2025: 31 spills, 64 h
  • Alvechurch - The Orchard SPS Not discharging
    Severn Trent Water · into River Arrow · 12.6 km by river above Studley · 2025: 1 spill, 2.7 h
  • Alvechurch Sewage Treatment Works Not discharging
    Severn Trent Water · into River Arrow · 11.5 km by river above Studley · 2025: 28 spills, 234 h
  • Redditch - Paper Mill Drive (CSO) Not discharging
    Severn Trent Water · into River Arrow · 5.4 km by river above Studley · 2025: 3 spills, 3.8 h
River Arrow, above Broomjoins the Avon above Evesham6 overflows · 1 discharging now
  • Castle Road CSO Discharging now since
    Severn Trent Water · into River Arrow · 15.5 km by river above Broom · 2025: 4 spills, 1.1 h
  • Redditch - Spernal STW Not discharging
    Severn Trent Water · into River Arrow · 13.1 km by river above Broom · 2025: 22 spills, 211 h
  • Kings Coughton -Birmingham Road SPS Not discharging
    Severn Trent Water · into Tributary Of River Arrow · 8.1 km by river above Broom · 2025: 6 spills, 39 h
  • Fairwater Crescent SPS Not discharging
    Severn Trent Water · into River Alne · 6.1 km by river above Broom · 2025: 8 spills, 77 h
  • Alcester (Oversley Green) STW Not discharging
    Severn Trent Water · into River Arrow · 4.6 km by river above Broom · 2025: 2 spills, 31 h
  • Alcester (Oversley Green) STW Not discharging
    Severn Trent Water · into River Arrow · 4.6 km by river above Broom · 2025: 34 spills, 384 h
River Alne, above Little Alnejoins the Arrow1 overflow
  • Wootton Wawen STW Not discharging
    Severn Trent Water · into River Alne · 1.9 km by river above Little Alne · 2025: 20 spills, 148 h
Between Evesham and Pershore13 overflows
  • Lower Leys CSO Not discharging
    Severn Trent Water · into River Avon · 18.1 km by river above Pershore · 2025: 9 spills, 2.0 h
  • Battleton Syphon Not discharging
    Severn Trent Water · into River Avon · 17.6 km by river above Pershore · 2025: 17 spills, 48 h
  • The Navigation Inn CSO Not discharging
    Severn Trent Water · into River Avon · 17.3 km by river above Pershore · 2025: 9 spills, 8.3 h
  • Abbey Road - Evesham SPS Not discharging
    Severn Trent Water · into River Avon · 17.1 km by river above Pershore · 2025: 10 spills, 66 h
  • Pershore Road CSO Not discharging
    Severn Trent Water · into River Isbourne · 17.0 km by river above Pershore · 2025: 30 spills, 17 h
  • Hampton Syphon Not discharging
    Severn Trent Water · into River Avon · 17.0 km by river above Pershore · 2025: 6 spills, 58 h
  • Evesham - Boat Lane (CSO) Not discharging
    Severn Trent Water · into River Avon · 16.2 km by river above Pershore · 2025: 0 spills, 0 h
  • Blind Lane/Avon Street Jcn SSO Not discharging
    Severn Trent Water · into River Avon · 15.7 km by river above Pershore · 2025: 43 spills, 72 h
  • Evesham/Hampton Parks STW Not discharging
    Severn Trent Water · into River Avon · 15.2 km by river above Pershore · 2025: 20 spills, 183 h
  • Evesham - Worcester Road (SSO) Not discharging
    Severn Trent Water · into River Avon · 14.7 km by river above Pershore · 2025: 0 spills, 0 h
  • Wyre Road Sewage Pumping Station Not discharging
    Severn Trent Water · into River Avon · 1.5 km by river above Pershore · 2025: 21 spills, 187 h
  • Cherry Orchard Pumping Station Not discharging
    Severn Trent Water · into River Avon · 1.0 km by river above Pershore · 2025: 2 spills, 8.8 h
  • Pershore - Cherry Orchard (CSO) Not discharging
    Severn Trent Water · into River Avon · 1.0 km by river above Pershore · 2025: 32 spills, 5.6 h
Piddle Brook, above Wyre Piddlejoins the Avon above Pershore2 overflows
  • Flyford Flavell STW Not discharging
    Severn Trent Water · into Piddle Brook · 13.7 km by river above Wyre Piddle · 2025: 0 spills, 0 h
  • Bishampton Sewage Treatment Works Not discharging
    Severn Trent Water · into Whitsun Brook · 9.3 km by river above Wyre Piddle · 2025: 11 spills, 56 h
River Isbourne, above Toddingtonjoins the Avon above Pershore3 overflows
  • Vineyard Street CSO Not discharging
    Severn Trent Water · into River Isbourne · 6.7 km by river above Toddington · 2025: 1 spill, 0.2 h
  • Broadway Road CSO Not discharging
    Severn Trent Water · into River Isbourne · 5.9 km by river above Toddington · 2025: 0 spills, 0 h
  • Winchcombe Sewage Treatment Works Not discharging
    Severn Trent Water · into River Isbourne · 5.0 km by river above Toddington · 2025: 29 spills, 142 h
River Isbourne, above Sedgeberrowjoins the Avon above Pershore2 overflows
River Isbourne, above Hinton On Greenjoins the Avon above Pershore2 overflows
  • Sedgeberrow STW Not discharging
    Severn Trent Water · into River Isbourne · 2.2 km by river above Hinton On Green · 2025: 3 spills, 11 h
  • Hinton On The Green STW Not discharging
    Severn Trent Water · into River Isbourne · 190 m by river above Hinton On Green · 2025: 15 spills, 71 h
Between Pershore and Eckington Sluice2 overflows
  • Defford Road SPS Not discharging
    Severn Trent Water · into River Avon · 12.3 km by river above Eckington Sluice · 2025: 34 spills, 118 h
  • Defford Village STW Not discharging
    Severn Trent Water · into Bow Brook · 3.3 km by river above Eckington Sluice · 2025: 26 spills, 202 h
Bow Brook, above Besford Bridgejoins the Avon above Eckington Sluice5 overflows
  • Hanbury STW Not discharging
    Severn Trent Water · into Tributary Of Seeley Brook · 26.0 km by river above Besford Bridge · 2025: 71 spills, 1,233 h
  • Priest Bridge STW Not discharging
    Severn Trent Water · into Bow Brook · 25.9 km by river above Besford Bridge · 2025: 8 spills, 59 h
  • Tibberton Pumping Station Not discharging
    Severn Trent Water · into Crowle Brook · 20.8 km by river above Besford Bridge · 2025: 3 spills, 5.6 h · placed on the river by its position alone
  • Crowle STW Not discharging
    Severn Trent Water · into Bow Brook · 15.2 km by river above Besford Bridge · 2025: 56 spills, 720 h
  • Peopleton Sewage Treatment Works Not discharging
    Severn Trent Water · into Bow Brook · 8.4 km by river above Besford Bridge · 2025: 10 spills, 33 h
Between Bredon and Upper Pound2 overflows
  • Kemerton Pumping Station Not discharging
    Severn Trent Water · into Kemerton Brook · 7.4 km by river above Upper Pound · 2025: 44 spills, 534 h · placed on the river by its position alone
  • Twyning Sewage Treatment Works Not discharging
    Severn Trent Water · into Tributary Of River Avon · 3.9 km by river above Upper Pound · 2025: 49 spills, 533 h
Carrant Brook, above Tewkesbury Teddingtonjoins the Avon above Upper Pound3 overflows
  • Ashton Under Hill STW Not discharging
    Severn Trent Water · into Carrant Brook · 4.9 km by river above Tewkesbury Teddington · 2025: 0 spills, 0 h
  • Great Washbourne STW Not discharging
    Severn Trent Water · into Tributary Of Carrant Brook · 3.5 km by river above Tewkesbury Teddington · 2025: 33 spills, 306 h
  • Beckford Sewage Treatment Works Not discharging
    Severn Trent Water · into Carrant Brook&trib Of Carrant · 1.1 km by river above Tewkesbury Teddington · 2025: 37 spills, 521 h

Near these gauges, connection not known

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

  • Eckington Pumping Station Not discharging
    Severn Trent Water · into Hammock Brook · 420 m from Eckington Sluice in a straight line · no mapped watercourse close enough to be sure · 2025: 13 spills, 38 h
  • Moretons Lane CSO Not discharging
    Severn Trent Water · into Trib Of River Avon · 670 m from Bredon in a straight line · its watercourse is not on the river map · 2025: 4 spills, 18 h
  • Newbold-Avon Lane CSO Not discharging
    Severn Trent Water · into Trib Of River Avon · 800 m from Rugby in a straight line · no mapped watercourse close enough to be sure · 2025: 11 spills, 19 h
  • Merryfields Farm SPS Not discharging
    Severn Trent Water · into Tributary Of River Avon · 1.1 km from Bidford on Avon in a straight line · no mapped watercourse close enough to be sure · 2025: 0 spills, 0 h
  • Catthorpe Sewage Pumping Station Monitor offline
    Severn Trent Water · into Ditch Trib Of River Avon · 1.7 km from Lilbourne in a straight line · no mapped watercourse close enough to be sure · 2025: 0 spills, 0 h
  • Cottage Lane CSO Not discharging
    Severn Trent Water · into Shottery Brook · 2.0 km from Stratford in a straight line · its water cannot be followed on the map · 2025: 12 spills, 32 h
  • Alcester Road CSO Not discharging
    Severn Trent Water · into Shottery Brook · 2.1 km from Stratford in a straight line · its water cannot be followed on the map · 2025: 25 spills, 39 h
  • Upper Strensham Pumping Station Not discharging
    Severn Trent Water · into Trib Of Bourne Brook · 2.4 km from Eckington Sluice in a straight line · its watercourse is not on the river map · 2025: 2 spills, 18 h
  • Lower Mill Farm CSO Not discharging
    Severn Trent Water · into Tributary Of Carrant Brook · 2.6 km from Bredon in a straight line · several watercourses close by, nothing to choose between them · 2025: 19 spills, 50 h
  • Lower Moor STW Not discharging
    Severn Trent Water · into Tributary Of River Avon · 2.8 km from Pershore in a straight line · no mapped watercourse close enough to be sure · 2025: 18 spills, 313 h

4 other overflows within 3 km of these gauges are placed below the Avon’s lowest gauge or on another river, so not listed.

River Avon — Hampshire Avon

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

  • 0 report discharging now
  • 29 not discharging
  • 4 offline or silent: 1 monitor offline, 0 status unknown, 3 no live feed

Official figures for 2025, for the overflows traced upstream of Knapp Mill: 1,119 spills over 15,805 hours in total, across all 33.

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 Avon includes the smaller streams that join it there. Every overflow traced is listed here, each stretch in full. Back to the short lists →

Between Upavon West and Upavon East4 overflows
  • Swan Pumping Station Monitor offline
    Wessex Water · into River Avon (S) · 7.6 km by river above Upavon East · 2025: 6 spills, 1.9 h
  • Pewsey Wastewater Treatment Works Not discharging
    Wessex Water · into River Avon (Hampshire) · 6.7 km by river above Upavon East · 2025: 46 spills, 743 h
  • Salisbury Road Pumping Station Not discharging
    Wessex Water · into River Avon · 6.6 km by river above Upavon East · 2025: 0 spills, 0 h
  • North Newnton Pumping Station Not discharging
    Wessex Water · into River Avon · 980 m by river above Upavon East · 2025: 6 spills, 79 h
Between Upavon East and Amesbury3 overflows
  • Spaniel's Bridge Pumping Station Not discharging
    Wessex Water · into Tributary Of River Avon · 40.1 km by river above Amesbury · 2025: 52 spills, 1,078 h
  • Patney Weir Pumping Station Not discharging
    Wessex Water · into River Avon (S) · 33.2 km by river above Amesbury · 2025: 4 spills, 22 h
  • Ratfyn STW Not discharging
    Wessex Water · into Hampshire Avon River · 2.6 km by river above Amesbury · 2025: 0 spills, 0 h
Between Amesbury and Salisbury Ashley Road2 overflows
  • Flower Lane Pumping Station Not discharging
    Wessex Water · into River Avon · 17.8 km by river above Salisbury Ashley Road · 2025: 0 spills, 0 h
  • Amesbury STW Not discharging
    Wessex Water · into Hampshire Avon (S) · 16.5 km by river above Salisbury Ashley Road · 2025: 1 spill, 2.1 h
Between Salisbury Ashley Road and Salisbury Harnham Bridge1 overflow
  • Great Wishford Wrc Not discharging
    Wessex Water · into River Wylye · 9.8 km by river above Salisbury Harnham Bridge · 2025: 10 spills, 190 h
River Nadder, above Wiltonjoins the Avon above Salisbury Harnham Bridge4 overflows
  • Tisbury Combined Sewer Overflow Not discharging
    Wessex Water · into River Nadder Via Sws · 22.3 km by river above Wilton · 2025: 36 spills, 71 h · reaches the river through a sewer, so where it enters is approximate
  • Fovant Water Recycling Centre Not discharging
    Wessex Water · into Fovant Brook · 14.5 km by river above Wilton · 2025: 81 spills, 1,252 h
  • Barford St Martin Pumping Station Not discharging
    Wessex Water · into River Nadder · 5.6 km by river above Wilton · 2025: 4 spills, 42 h
  • Barford St Martin Wrc Not discharging
    Wessex Water · into River Nadder · 5.2 km by river above Wilton · 2025: 81 spills, 1,551 h
River Wylye, above Brixton Deverilljoins the Avon above Salisbury Harnham Bridge1 overflow
  • Monkton Deverill Wrc Not discharging
    Wessex Water · into River Wylye · 1.0 km by river above Brixton Deverill · 2025: 0 spills, 0 h
River Wylye, above HEYTESBURY A36joins the Avon above Salisbury Harnham Bridge3 overflows
  • George Street CSO No live feed
    Wessex Water · into The Were · 5.9 km by river above HEYTESBURY A36 · 2025: 3 spills, 0.9 h
  • Warminster WwTW Not discharging
    Wessex Water · into River Wylye · 5.4 km by river above HEYTESBURY A36 · 2025: 18 spills, 238 h
  • Calveswater Pumping Station Not discharging
    Wessex Water · into The Were Via Sws · 4.3 km by river above HEYTESBURY A36 · 2025: 22 spills, 51 h · reaches the river through a sewer, so where it enters is approximate
River Wylye, above South Newtonjoins the Avon above Salisbury Harnham Bridge2 overflows
  • Shrewton Water Recycling Centre Not discharging
    Wessex Water · into River Till · 13.1 km by river above South Newton · 2025: 116 spills, 2,679 h
  • Hanging Langford Pumping Station Not discharging
    Wessex Water · into River Wylye Via A Reed Bed · 7.2 km by river above South Newton · 2025: 84 spills, 242 h · reaches the river through a sewer, so where it enters is approximate
Between Salisbury Harnham Bridge and Downton Iron Bridge5 overflows
  • 37 Endless Street CSO Not discharging
    Wessex Water · into River Avon Via Sws · 11.0 km by river above Downton Iron Bridge · 2025: 22 spills, 9.3 h · reaches the river through a sewer, so where it enters is approximate
  • High Street SSO Not discharging
    Wessex Water · into River Avon Via Sw Sewer · 11.0 km by river above Downton Iron Bridge · 2025: 7 spills, 10 h · reaches the river through a sewer, so where it enters is approximate
  • College Street CSO Not discharging
    Wessex Water · into River Avon Via Sws · 11.0 km by river above Downton Iron Bridge · 2025: 4 spills, 0.4 h · reaches the river through a sewer, so where it enters is approximate
  • Churchill Gdns SSO No live feed
    Wessex Water · into River Avon · 11.0 km by river above Downton Iron Bridge · 2025: 0 spills, 0 h
  • Salisbury (Petersfinger) No live feed
    Wessex Water · into River Avon(S) · 8.7 km by river above Downton Iron Bridge · 2025: 51 spills, 840 h
River Bourne, above Tidworth Manor Bridgejoins the Avon above Downton Iron Bridge1 overflow
  • Collingbourne Ducis Pumping Station Not discharging
    Wessex Water · into River Bourne · 5.5 km by river above Tidworth Manor Bridge · 2025: 106 spills, 730 h · placed on the river by its position alone
River Bourne, above Idmistonjoins the Avon above Downton Iron Bridge1 overflow
  • Allington Old Inn PS Not discharging
    Wessex Water · into River Bourne · 3.5 km by river above Idmiston · 2025: 85 spills, 1,978 h · placed on the river by its position alone
River Bourne, above Salisbury Bournejoins the Avon above Downton Iron Bridge2 overflows
  • Idmiston Pumping Station Not discharging
    Wessex Water · into River Bourne (S) · 12.8 km by river above Salisbury Bourne · 2025: 1 spill, 0 h · placed on the river by its position alone
  • Hurdcott Wastewater Treatment Works Not discharging
    Wessex Water · into River Bourne · 6.4 km by river above Salisbury Bourne · 2025: 167 spills, 3,119 h · placed on the river by its position alone
Between Downton Iron Bridge and East Mills Flume1 overflow
  • Downton Sewage Treatment Works Not discharging
    Wessex Water · into Hampshire Avon, River · 10.8 km by river above East Mills Flume · 2025: 31 spills, 309 h
Between East Mills Flume and Knapp Mill3 overflows
  • Fordingbridge CSO Not discharging bathing water
    Wessex Water · into River Avon(S) · 33.1 km by river above Knapp Mill · 2025: 31 spills, 26 h
  • Fordingbridge Wrc Not discharging
    Wessex Water · into Hampshire Avon · 31.7 km by river above Knapp Mill · 2025: 21 spills, 217 h
  • Ringwood Sewage Treatment Works Not discharging
    Wessex Water · into Hampshire Avon River · 16.6 km by river above Knapp Mill · 2025: 23 spills, 324 h

Near these gauges, connection not known

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

  • Christchurch Sewage Treatment Works Not discharging bathing water
    Wessex Water · into River Avon(E) · 1.4 km from Knapp Mill in a straight line · discharges to the sea, an estuary or tidal water · 2025: 5 spills, 48 h
  • WXW00576 No live feed bathing water
    Wessex Water · 2.0 km from Knapp Mill in a straight line · no mapped watercourse close enough to be sure · 2025: 15 spills, 45 h
  • Iford Bridge Sewage Pumping Station Not discharging bathing water
    Wessex Water · into River Stour(S) · 2.0 km from Knapp Mill in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 2 spills, 0.8 h
  • Holdenhurst STW Not discharging bathing water
    Wessex Water · into River Stour (S) · 2.1 km from Knapp Mill in a straight line · not connected to this gauge on the river map · 2025: 4 spills, 20 h
  • Tuckton High Street CSO Not discharging bathing water
    Wessex Water · into Tidal River Stour(E) · 2.2 km from Knapp Mill in a straight line · discharges to the sea, an estuary or tidal water · 2025: 15 spills, 7.1 h
  • WXW00768 Not discharging bathing water
    Wessex Water · 2.4 km from Knapp Mill in a straight line · several watercourses close by, nothing to choose between them · 2025: 23 spills, 9.7 h
  • WXW00769 Not discharging bathing water
    Wessex Water · 2.4 km from Knapp Mill in a straight line · several watercourses close by, nothing to choose between them · 2025: 4 spills, 1.6 h
  • Wilcot Pumping Station Not discharging
    Wessex Water · into Tributary Of The River Avon · 2.4 km from Pewsey in a straight line · its watercourse is not on the river map · 2025: 1 spill, 19 h
  • Ashley Road Combined Sewer Overflow Not discharging
    Wessex Water · into Trib Of River Stour(S) · 2.5 km from Knapp Mill in a straight line · not connected to this gauge on the river map · 2025: 1 spill, 0.5 h
  • Cooper Dean Combined Sewer Overflow Not discharging
    Wessex Water · into River Stour Via Sws · 2.5 km from Knapp Mill in a straight line · not connected to this gauge on the river map · 2025: 12 spills, 30 h

1 other overflow within 3 km of these gauges is placed below the Avon’s lowest gauge or on another river, so not listed.

River Avon — Teign Torbay and South Hams

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

  • 0 report discharging now
  • 4 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 Loddiswell: 228 spills over 2,034 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 Avon includes the smaller streams that join it there.

Between Didworthy and Loddiswell4 overflows
  • Brent Mill CSO Not discharging shellfish water
    South West Water · into River Avon · 16.8 km by river above Loddiswell · 2025: 36 spills, 129 h
  • South Brent WwTW Not discharging shellfish water
    South West Water · into River Avon · 16.6 km by river above Loddiswell · 2025: 66 spills, 1,268 h
  • Diptford Sewage Treatment Works Not discharging shellfish water
    South West Water · into River Avon · 11.6 km by river above Loddiswell · 2025: 111 spills, 485 h
  • Loddiswell WwTW Not discharging shellfish water
    South West Water · into River Avon · 660 m by river above Loddiswell · 2025: 15 spills, 152 h

Near these gauges, connection not known

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

  • Heather Park Pumping Station Not discharging shellfish water
    South West Water · into Trib Of Horse Brook Via Sws · 2.6 km from Didworthy in a straight line · reaches the river through a sewer or culvert · 2025: 0 spills, 0 h
  • Aveton Gifford WwTW Not discharging bathing water shellfish water
    South West Water · into River Avon Estuary(E) · 2.8 km from Loddiswell in a straight line · discharges to the sea, an estuary or tidal water · 2025: 4 spills, 6.9 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: © Wessex 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. Live status: © South West 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.

Sampled most recently, anywhere on these rivers and their streams:

  • Tributary of S. Frome at Farleigh HungerfordRiver Frome · 16 km above BathfordLast sampled 1 Oct 2026 · 8 days agoE. coli 870 per 100 ml Jun 2026
  • Mells River at Blacker's Woodunnamed stream · 3.9 km above Stoke Bottom FarmLast sampled 30 Sep 2026 · 9 days agoOxygen 96.5% Aug 2026Temp 12.2 °C Aug 2026pH 8.44 Aug 2026Ammonia 0.006 mg/l Aug 2026
  • Western Avon at UpavonRiver Avon · 24 km above AmesburyLast sampled 28 Sep 2026 · 11 days agoOxygen 86.3%Temp 13.2 °CpH 8.11Ammonia below 0.03 mg/l

River Avon — Bristol Avon Little Avon Axe and North Somerset St

221 sampling points on the River Avon and the streams that join it above Netham Weir. 42 have a sample from the last 12 months; 83 have any sample banked.

Where, from the source downSampling pointsNewest sample
Sherston Avon and its streamsjoins the Avon above Great Somerford10 points5 sampled4 Dec 2025
Above BrokenboroughTetbury Avon · joins the Avon above Great Somerford4 points2 sampled1 Jul 2026
Above Brinkworth BrookBrinkworth Brook · joins the Avon above Bradford on Avon1 point13 Mar 2024
Above Crabb MillWoodbridge Brook · joins the Avon above Great Somerford4 points0 samplednone banked
Above RodbourneGauze Brook · joins the Avon above Great Somerford4 points2 sampled7 Sep 2026
Above Great Somerford9 points3 sampled13 Aug 2026
River Marden and its streamsjoins the Avon above Bradford on Avon17 points6 sampled8 Sep 2026
Somerset Frome and its streamsjoins the Avon above Bathford42 points14 sampled30 Sep 2026
Midford Brook and its streamsjoins the Avon above Bathford18 points8 sampled7 Sep 2026
Above TrowbridgeRiver Biss · joins the Avon above Bradford on Avon11 points3 sampled5 May 2026
Above Bradford on Avon37 points13 sampled21 Sep 2026
Above MiddlehillBy Brook · joins the Avon above Bathford8 points3 sampled13 May 2026
Above Bathford11 points7 sampled1 Oct 2026
River Chew and its streamsjoins the Avon above Bristol Netham Lock12 points8 sampled8 May 2026
Above Bath Destructor Bridge5 points1 sampled12 Aug 2026
River Boyd and its streamsjoins the Avon above Keynsham, Rivermead6 points3 sampled9 Jul 2026
Above Saltford7 points0 samplednone banked
Above Keynsham, Rivermead4 points0 samplednone banked
Above BrislingtonBrislington Brook · joins the Avon above Bristol Netham Lock1 point0 samplednone banked
Above Bristol Netham Lock10 points4 sampled11 Aug 2026

River Avon — Warwickshire Avon

296 sampling points on the River Avon and the streams that join it above Upper Pound. 88 have a sample from the last 12 months; 116 have any sample banked.

Where, from the source downSampling pointsNewest sample
River Stour and its streamsjoins the Avon above Bidford on Avon17 points8 sampled11 Sep 2026
River Arrow and its streamsjoins the Avon above Evesham34 points15 sampled21 Sep 2026
Above Bidford on Avon15 points6 sampled29 May 2026
River Isbourne and its streamsjoins the Avon above Pershore12 points3 sampled27 May 2026
Bow Brook and its streamsjoins the Avon above Eckington Sluice20 points5 sampled21 Sep 2026
Above Evesham17 points5 sampled16 Sep 2026
Above Wyre PiddlePiddle Brook · joins the Avon above Pershore6 points2 sampled15 May 2026
Above Pershore11 points5 sampled18 Jun 2026
Above Eckington Sluice9 points3 sampled14 Aug 2026
Above Tewkesbury TeddingtonCarrant Brook · joins the Avon above Upper Pound6 points1 sampled11 Dec 2023
Above Upper Pound6 points3 sampled29 Apr 2026
Above Lilbourne9 points3 sampled16 Sep 2026
Above ChurchoverRiver Swift · joins the Avon above Rugby16 points4 sampled9 Jul 2026
Above Rugby7 points4 sampled18 Aug 2026
River Sowe and its streamsjoins the Avon above Warwick10 points3 sampled8 Sep 2026
River Leam and its streamsjoins the Avon above Warwick25 points13 sampled13 Aug 2026
River Sherbourne and its streamsjoins the Avon above Warwick3 points0 samplednone banked
Above Sir Henry Parkes RoadCanley Brook · joins the Avon above Warwick1 point8 Dec 2023
Above KenilworthFinham Brook · joins the Avon above Warwick1 point0 samplednone banked
Above Stareton10 points5 sampled13 Jul 2026
Above Warwick35 points17 sampled17 Sep 2026
River Dene and its streamsjoins the Avon above Stratford8 points3 sampled16 Sep 2026
Above Stratford18 points7 sampled9 Sep 2026

River Avon — Hampshire Avon

144 sampling points on the River Avon and the streams that join it above Knapp Mill, and below it. 64 have a sample from the last 12 months; 76 have any sample banked.

Where, from the source downSampling pointsNewest sample
Above Pewsey3 points0 samplednone banked
Above Upavon East6 points3 sampled5 May 2026
River Bourne and its streamsjoins the Avon above Downton Iron Bridge13 points6 sampled18 Sep 2026
River Nadder and its streamsjoins the Avon above Salisbury Harnham Bridge21 points8 sampled15 Sep 2026
Above Amesbury15 points11 sampled28 Sep 2026
River Wylye and its streamsjoins the Avon above Salisbury Harnham Bridge21 points9 sampled18 Sep 2026
Above Salisbury Ashley Road5 points4 sampled28 Sep 2026
Above Salisbury Harnham Bridge9 points5 sampled15 Sep 2026
Above NUNTON BRIDGE WITSRiver Ebble · joins the Avon above Downton Iron Bridge5 points2 sampled3 Sep 2026
Above Downton Iron Bridge11 points5 sampled15 Sep 2026
Above East Mills Flume5 points4 sampled15 Sep 2026
Above Moyles CourtDockens Water · joins the Avon above Knapp Mill2 points26 Aug 2026
Above Knapp Mill27 points16 sampled24 Sep 2026
Below the lowest gauge1 point22 Jul 2026

River Avon — Teign Torbay and South Hams

14 sampling points on the River Avon and the streams that join it above Loddiswell, and below it. 4 have a sample from the last 12 months; 6 have any sample banked.

Where, from the source downSampling pointsNewest sample
Above Didworthy3 points1 sampled12 May 2026
Above Loddiswell10 points4 sampled16 Sep 2026
Below the lowest gauge1 point6 Aug 2026

England's samples only. Each count opens the list of those points, nearest first, with the date of each one’s latest sample (the gauge’s “Upstream of here” list).

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.