67 storm overflows are traced upstream of Adwick, the Dearne’s lowest gauge on the river map: on the Dearne itself, on its gauged tributaries, and on smaller streams that join above there.
- 0 report discharging now
- 64 not discharging
- 3 offline or silent: 3 monitor offline, 0 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Adwick: 1,461 spills over 9,177 hours in total, across all 67.
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 Dearne includes the smaller streams that join it there. Every overflow traced is listed here, each stretch in full. Back to the short lists →
Above Denby Dale Norman Road, the Dearne’s highest gauge1 overflow
- Catch Bar CSO Not discharging
Yorkshire Water · into River Dearne · 870 m by river above Denby Dale Norman Road · 2025: 4 spills, 7.8 h
Between Denby Dale Norman Road and Darton9 overflows
- Cuckstool Bottom CSO Not discharging
Yorkshire Water · into River Dearne · 12.4 km by river above Darton · 2025: 57 spills, 326 h - Skelmanthorpe CSO Not discharging
Yorkshire Water · into Trib Of Park Gate Dike · 10.9 km by river above Darton · 2025: 27 spills, 180 h - Flockton Tank CSO Not discharging
Yorkshire Water · into Flockton Beck · 10.8 km by river above Darton · 2025: 2 spills, 5.3 h - Spring Grove CSO Not discharging
Yorkshire Water · into Trib Of River Dearne · 9.6 km by river above Darton · 2025: 1 spill, 0.3 h - Wakefield Road Scisset CSO Not discharging
Yorkshire Water · into River Dearne · 9.6 km by river above Darton · 2025: 0 spills, 0 h - Park Mill CSO Not discharging
Yorkshire Water · into River Dearne · 7.9 km by river above Darton · 2025: 43 spills, 212 h - Back Lane CSO Not discharging
Yorkshire Water · into Clvrt Trib Of Toad Hole Dike · 7.8 km by river above Darton · 2025: 0 spills, 0 h - Clayton West STW Not discharging
Yorkshire Water · into River Dearne · 6.9 km by river above Darton · 2025: 75 spills, 1,074 h - Darton Church Street CSO Not discharging
Yorkshire Water · into River Dearne · 200 m by river above Darton · 2025: 26 spills, 62 h
Between Darton and Barnsley9 overflows
- Hoylandswaine STW Not discharging
Yorkshire Water · into Ellhirst Beck · 12.8 km by river above Barnsley · 2025: 98 spills, 1,265 h - Hoylandswaine STW Not discharging
Yorkshire Water · into Ellhirst Beck · 12.8 km by river above Barnsley · 2025: 8 spills, 2.0 h - Silkstone CSO Not discharging
Yorkshire Water · into Silkstone Beck · 10.0 km by river above Barnsley · 2025: 14 spills, 52 h - Silkstone STW Not discharging
Yorkshire Water · into Silkstone Beck · 9.5 km by river above Barnsley · 2025: 68 spills, 555 h - Clay Hall SPS Not discharging
Yorkshire Water · into Unnamed Trib Of Cawthorne Dike · 8.8 km by river above Barnsley · 2025: 1 spill, 0.3 h - Dearne Hall Road CSO Not discharging
Yorkshire Water · into River Dearne · 4.5 km by river above Barnsley · 2025: 25 spills, 83 h - Darton STW Not discharging
Yorkshire Water · into River Dearne · 3.8 km by river above Barnsley · 2025: 40 spills, 325 h - New Lodge CSO Not discharging
Yorkshire Water · into Tributary Of The River Dearne · 1.9 km by river above Barnsley · 2025: 0 spills, 0 h - Smithies Lane Barnsley CSO Not discharging
Yorkshire Water · into Tributary Of The River Dearne · 800 m by river above Barnsley · 2025: 31 spills, 80 h
Between Barnsley and Cundy Cross2 overflows
- Old Mill Lane CSO Not discharging
Yorkshire Water · into River Dearne · 2.6 km by river above Cundy Cross · 2025: 17 spills, 31 h - Barnsley Mfi CSO Monitor offline
Yorkshire Water · into River Dearne · 2.6 km by river above Cundy Cross · 2025: 15 spills, 36 h
Between Cundy Cross and Houghton13 overflows
- Sandybridge Lane No 3 SPS Not discharging
Yorkshire Water · into Hemp Dike · 10.8 km by river above Houghton · 2025: 45 spills, 217 h - Pools Lane CSO Not discharging
Yorkshire Water · into Pools Dike · 9.2 km by river above Houghton · 2025: 19 spills, 99 h - Laithes Lane CSO Not discharging
Yorkshire Water · into Trib Of Cudworth Dyke · 9.0 km by river above Houghton · 2025: 1 spill, 0.3 h · placed on the river by its position alone - Lambert Road, Kendray CSO Not discharging
Yorkshire Water · into Tributary Of The River Dearne · 6.7 km by river above Houghton · 2025: 2 spills, 0.8 h - Birk Road, Kendray CSO Not discharging
Yorkshire Water · into Tributary Of The River Dearne · 6.7 km by river above Houghton · 2025: 0 spills, 0 h - Kendray Doncaster Road CSO Monitor offline
Yorkshire Water · into River Dearne · 6.7 km by river above Houghton · 2025: 16 spills, 30 h - Stairfoot Grange CSO Not discharging
Yorkshire Water · into Clvrt Trib River Dearne · 6.7 km by river above Houghton · 2025: 30 spills, 104 h - Klondyke SPS Not discharging
Yorkshire Water · into Trib Of Small Bridge Dike · 6.6 km by river above Houghton · 2025: 7 spills, 14 h - Lundwood Sewage Pumping Station Not discharging
Yorkshire Water · into River Dearne · 6.2 km by river above Houghton · 2025: 33 spills, 143 h - Carrs Lane Cudworth Not discharging
Yorkshire Water · into Small Bridge Dike · 5.0 km by river above Houghton · 2025: 3 spills, 1.0 h - Engine Lane Sewage Pumping Station Not discharging
Yorkshire Water · into Grimethorpe Dyke · 4.2 km by river above Houghton · 2025: 16 spills, 83 h · placed on the river by its position alone - Engine Lane Sewage Pumping Station Not discharging
Yorkshire Water · into Grimethorpe Dyke · 4.2 km by river above Houghton · 2025: 5 spills, 16 h · placed on the river by its position alone - Cudworth STW Not discharging
Yorkshire Water · into River Dearne · 4.0 km by river above Houghton · 2025: 30 spills, 265 h
Between Houghton and Darfield Bridge3 overflows
- Nanny Marr Road No. 2 CSO Not discharging
Yorkshire Water · into Trib Of River Dearne · 1.1 km by river above Darfield Bridge · 2025: 16 spills, 9.5 h - Nanny Marr Road No. 2 CSO Not discharging
Yorkshire Water · into Trib Of River Dearne · 1.1 km by river above Darfield Bridge · 2025: 21 spills, 16 h - Darfield Doncaster Road CSO Not discharging
Yorkshire Water · into River Dearne · 160 m by river above Darfield Bridge · 2025: 0 spills, 0 h
Between Darfield Bridge and Bolton Bridge8 overflows
- Thurnscoe CSO Not discharging
Yorkshire Water · into Thurnscoe Dike · 7.7 km by river above Bolton Bridge · 2025: 28 spills, 172 h - George Street Darfield No 2 CSO Not discharging
Yorkshire Water · into River Dove · 6.4 km by river above Bolton Bridge · 2025: 1 spill, 0.3 h - Wombwell WwTW Not discharging
Yorkshire Water · into River Dove And Bulling Dyke · 6.1 km by river above Bolton Bridge · 2025: 67 spills, 655 h - Riverside Close Darfield CSO Not discharging
Yorkshire Water · into River Dearne · 6.0 km by river above Bolton Bridge · 2025: 27 spills, 111 h - Pinfold Lane Recreation CSO Not discharging
Yorkshire Water · into River Dearne · 6.0 km by river above Bolton Bridge · 2025: 42 spills, 91 h - Mary Lane Darfield CSO Not discharging
Yorkshire Water · into River Dove · 5.4 km by river above Bolton Bridge · 2025: 34 spills, 34 h - Vicar Road CSO Not discharging
Yorkshire Water · into Dove · 5.3 km by river above Bolton Bridge · 2025: 13 spills, 6.3 h - Darfield WwTW Not discharging
Yorkshire Water · into River Dearne · 5.2 km by river above Bolton Bridge · 2025: 45 spills, 268 h
Knoll Beck, above Manvers Old Moor Lanejoins the Dearne above Bolton Bridge4 overflows
- Elsecar CSO Not discharging
Yorkshire Water · into Knoll Beck · 4.2 km by river above Manvers Old Moor Lane · 2025: 47 spills, 195 h - Lundhill CSO Monitor offline
Yorkshire Water · into Knoll Beck · 2.1 km by river above Manvers Old Moor Lane · 2025: 34 spills, 122 h - Moorbridge Road CSO Not discharging
Yorkshire Water · into Knoll Beck · 730 m by river above Manvers Old Moor Lane · 2025: 8 spills, 4.5 h - Pontefract Road CSO Not discharging
Yorkshire Water · into Knoll Beck · 490 m by river above Manvers Old Moor Lane · 2025: 16 spills, 21 h
River Dove, above Worsbroughjoins the Dearne above Bolton Bridge2 overflows
- Crane Moor STW Not discharging
Yorkshire Water · into Crane Moor Dike · 6.0 km by river above Worsbrough · 2025: 82 spills, 1,154 h - Silkstone Common (Moor End) SPS Not discharging
Yorkshire Water · into House Carr Dike · 5.9 km by river above Worsbrough · 2025: 25 spills, 115 h
River Dove, above Stonyford Bridgejoins the Dearne above Bolton Bridge5 overflows
- Dark Lane Worsboro CSO Not discharging
Yorkshire Water · into River Dove · 5.7 km by river above Stonyford Bridge · 2025: 31 spills, 126 h - Edmunds Road CSO Not discharging
Yorkshire Water · into River Dove · 5.5 km by river above Stonyford Bridge · 2025: 8 spills, 21 h - West Street Worsbrough CSO Not discharging
Yorkshire Water · into River Dove · 5.5 km by river above Stonyford Bridge · 2025: 1 spill, 0.3 h - Worsbrough STW Not discharging
Yorkshire Water · into River Dove · 5.3 km by river above Stonyford Bridge · 2025: 36 spills, 338 h - Stairfoot SPS Not discharging
Yorkshire Water · into River Dove · 3.5 km by river above Stonyford Bridge · 2025: 2 spills, 0.8 h
Between Bolton Bridge and Adwick6 overflows
- Wath Moor Road CSO Not discharging
Yorkshire Water · into Brook Dike · 5.1 km by river above Adwick · 2025: 17 spills, 13 h · placed on the river by its position alone - Wath Doncaster Road CSO Not discharging
Yorkshire Water · into Brook Dike · 4.5 km by river above Adwick · 2025: 17 spills, 13 h · placed on the river by its position alone - Yorkshire Water Services Ltd Not discharging
Yorkshire Water · into Brook Dike · 4.2 km by river above Adwick · 2025: 17 spills, 67 h · placed on the river by its position alone - Mexborough East CSO Not discharging
Yorkshire Water · into River Dearne · 2.4 km by river above Adwick · 2025: 0 spills, 0 h - Bolton On Dearne STW Not discharging
Yorkshire Water · into River Dearne · 2.1 km by river above Adwick · 2025: 38 spills, 294 h - Bolton On Dearne STW Not discharging
Yorkshire Water · into River Dearne · 2.1 km by river above Adwick · 2025: 11 spills, 30 h
Brook Dike, above Wath upon Dearnejoins the Dearne above Adwick5 overflows
- Wath Cemetery Road CSO Not discharging
Yorkshire Water · into Brook Dike · 480 m by river above Wath upon Dearne · 2025: 0 spills, 0 h · placed on the river by its position alone - Stump Cross Road CSO Not discharging
Yorkshire Water · into Brook Dike · 480 m by river above Wath upon Dearne · 2025: 0 spills, 0 h · placed on the river by its position alone - New Hill Park CSO Not discharging
Yorkshire Water · into Brook Dike · 480 m by river above Wath upon Dearne · 2025: 0 spills, 0 h · placed on the river by its position alone - Wath West Street CSO Not discharging
Yorkshire Water · into Brook Dike · 480 m by river above Wath upon Dearne · 2025: 0 spills, 0 h · placed on the river by its position alone - Wath Brook Dike CSO Not discharging
Yorkshire Water · into Brook Dyke · 390 m by river above Wath upon Dearne · 2025: 18 spills, 38 h · placed on the river by its position alone
Near these gauges, connection not known
Within 3 km of one of the Dearne’s gauges in a straight line, but the river map cannot say whether their water reaches it.
- Regent Street Not discharging
Yorkshire Water · into Trib Of River Dearne · 380 m from Barnsley in a straight line · no mapped watercourse close enough to be sure · 2025: 3 spills, 0.8 h - Lundwood WwTW Not discharging
Yorkshire Water · into River Dearne & Cliffe Bdg Dyke · 840 m from Cundy Cross in a straight line · no mapped watercourse close enough to be sure · 2025: 71 spills, 865 h - Middlecliffe Sewage Pumping Station Not discharging
Yorkshire Water · into Billingley Dyke · 1.0 km from Darfield Bridge in a straight line · its watercourse is not on the river map · 2025: 5 spills, 39 h - Barnburgh STW Not discharging
Yorkshire Water · into Tributary Of The River Dearne · 1.1 km from Adwick in a straight line · its watercourse is not on the river map · 2025: 17 spills, 142 h - Lambra Road CSO Not discharging
Yorkshire Water · into Sough Dyke (Culvert) · 1.1 km from Barnsley in a straight line · its watercourse is not on the river map · 2025: 53 spills, 218 h - Lane Hackings Green CSO Monitor offline
Yorkshire Water · into Thorpe Dike · 1.2 km from Denby Dale Norman Road in a straight line · its watercourse is not on the river map · 2025: 6 spills, 7.8 h - Pontefract Road Barnsley CSO Not discharging
Yorkshire Water · into Sough Dyke · 1.2 km from Barnsley in a straight line · its watercourse is not on the river map · 2025: 27 spills, 31 h - Ballotini Works CSO Not discharging
Yorkshire Water · into Measborough Dike · 1.2 km from Cundy Cross in a straight line · its watercourse is not on the river map · 2025: 36 spills, 90 h - Furlong Pond No 2 CSO Not discharging
Yorkshire Water · into Far Moor Dyke · 1.3 km from Bolton Bridge in a straight line · no mapped watercourse close enough to be sure · 2025: 16 spills, 51 h - Not Matched In Ea Consents Database Not discharging
Yorkshire Water · into Not Matched In Ea Consents Database · 1.5 km from Adwick in a straight line · several watercourses close by, nothing to choose between them · 2025: 3 spills, 0.8 h - Wath Upon Dearne WwTW Not discharging
Yorkshire Water · into Brook Dike/River Dearne · 1.6 km from Bolton Bridge in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 27 spills, 361 h - Hill Top Farm CSO Not discharging
Yorkshire Water · into Ditch To The River Dearne · 1.6 km from Barnsley in a straight line · its watercourse is not on the river map · 2025: 0 spills, 0 h - Wombwell WwTW Not discharging
Yorkshire Water · into River Dove And Bulling Dyke · 1.7 km from Darfield Bridge in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 60 spills, 244 h - Wombwell WwTW Not discharging
Yorkshire Water · into River Dove And Bulling Dyke · 1.7 km from Darfield Bridge in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 15 spills, 125 h - Carr Green CSO Not discharging
Yorkshire Water · into Dyke To River Dearne · 1.9 km from Darton in a straight line · no mapped watercourse close enough to be sure · 2025: 33 spills, 107 h
13 more near these gauges whose connection is not known.
8 other overflows within 3 km of these gauges are placed below the Dearne’s lowest gauge or on another river, so not listed.
A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →
Live status: © Yorkshire 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.
FloodRadar
Log inCreate free account