58 storm overflows are traced upstream of Irvine Waterside, the Irvine’s lowest gauge on the river map: on the Irvine itself, on its gauged tributaries, and on smaller streams that join above there.
- 0 report discharging now
- 50 not discharging
- 8 offline or silent: 8 monitor offline, 0 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Irvine Waterside: 2,356 overflow events over 4,588 hours in total, across the 41 that have a figure. 9 had no data that year; 8 have no 2025 figure. Scottish Water counts overflow events, not the 12/24-hour spills counted in England and Wales, so this total cannot be set beside theirs.
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 Irvine includes the smaller streams that join it there. Every overflow traced is listed here, each stretch in full. Back to the short lists →
Above Newmilns, the Irvine’s highest gauge3 overflows
Between Newmilns and Glenfield12 overflows
- Newmilns, 27f Nelson Street Syphon CSO Not discharging
Scottish Water · into River Irvine · 14.2 km by river above Glenfield · 2025: 31 overflow events, 7.4 h - Newmilns, 22 Loudoun Road West CSO Not discharging
Scottish Water · into River Irvine · 13.3 km by river above Glenfield · 2025: 117 overflow events, 68 h - Newmilns, Masons Holm Syphon CSO Monitor offline
Scottish Water · into River Irvine · 13.3 km by river above Glenfield · 2025: 302 overflow events, 608 h - Newmilns, Strath Yard/Strathome Terr CSO Not discharging
Scottish Water · into River Irvine · 13.0 km by river above Glenfield · 2025: 0 overflow events, 0 h - Moscow WwTW CSO Monitor offline
Scottish Water · into Volga Burn · 10.2 km by river above Glenfield · 2025: no data - Galston, Former STW High Level CSO Not discharging
Scottish Water · into River Irvine · 9.4 km by river above Glenfield · no official annual figure - Galston, Former STW Low Level CSO Not discharging
Scottish Water · into River Irvine · 7.9 km by river above Glenfield · 2025: 62 overflow events, 149 h - Hurlford Portland Brae CSO Ns451371 Not discharging
Scottish Water · into River Irvine · 3.2 km by river above Glenfield · 2025: 84 overflow events, 59 h - Crookedholm,51 Main Road CSO Ns450372 Not discharging
Scottish Water · into River Irvine · 3.2 km by river above Glenfield · 2025: 77 overflow events, 126 h - Kilmarnock, 80 Carron Avenue CSO Not discharging
Scottish Water · into Tributary Of River Irvine · 1.3 km by river above Glenfield · 2025: 157 overflow events, 483 h - Kilmarnock, Scott Ellis Tanks CSO Not discharging
Scottish Water · into River Irvine · 730 m by river above Glenfield · 2025: 104 overflow events, 651 h - Kilmarnock, 36 New Mill Road CSO Not discharging
Scottish Water · into River Irvine · 680 m by river above Glenfield · no official annual figure
Between Glenfield and Shewalton17 overflows
- Kilmarnock Douglas Street CSO Ns427373 Not discharging
Scottish Water · into Kilmarnock Water · 12.5 km by river above Shewalton · 2025: no data - Kilmarnock, Howard Park CSO Not discharging
Scottish Water · into Kilmarnock Water · 12.4 km by river above Shewalton · 2025: 0 overflow events, 0 h - Kilmarnock, 32 Old Street CSO Not discharging
Scottish Water · into River Irvine · 12.2 km by river above Shewalton · 2025: 59 overflow events, 44 h - Kilmarnock,greenholm St CSO Ns426366 Not discharging
Scottish Water · into River Irvine · 12.0 km by river above Shewalton · 2025: no data - Kilmarnock, 2 Maxholm Road CSO Not discharging
Scottish Water · into River Irvine · 11.6 km by river above Shewalton · 2025: no data - Kilmarnock, Holmes Road No1 CSO Not discharging
Scottish Water · into River Irvine · 11.1 km by river above Shewalton · 2025: 0 overflow events, 0 h - Kilmaurs, 27 Main St/Kilmaurs Cross CSO Not discharging
Scottish Water · into Carmel Water · 10.3 km by river above Shewalton · 2025: 34 overflow events, 11 h - Kilmaurs, Larchbank CSO Not discharging
Scottish Water · into Carmel Water · 10.1 km by river above Shewalton · 2025: 4 overflow events, 1.5 h - North Lodge SPS CSO 2012 Ns416364 Not discharging
Scottish Water · into River Irvine · 10.1 km by river above Shewalton · 2025: no data - Gatehead, Gatehead Storm Tanks CSO Not discharging
Scottish Water · into River Irvine · 8.6 km by river above Shewalton · no official annual figure - Crosshouse, 9 Kilmaurs Road CSO Not discharging
Scottish Water · into Carmel Water · 6.2 km by river above Shewalton · 2025: 94 overflow events, 110 h - Crosshouse, Gatehead Road No1 CSO Not discharging
Scottish Water · into Carmel Water · 6.0 km by river above Shewalton · 2025: 136 overflow events, 335 h - Nether Craig Dreghorn CSO Ns371369 Not discharging
Scottish Water · into River Irvine · 4.5 km by river above Shewalton · no official annual figure - Dundonald Olympic CSO No1 2008 Ns360360 Not discharging
Scottish Water · into River Irvine · 3.3 km by river above Shewalton · 2025: 32 overflow events, 129 h - Holmsbridge CSO 2009 Ns362373 Not discharging
Scottish Water · into River Irvine · 2.5 km by river above Shewalton · no official annual figure - Irvine, Garrier Bridge (Dreghorn) CSO Not discharging
Scottish Water · into River Irvine · 2.1 km by river above Shewalton · no official annual figure - Holmsford Bridge CSO Ns357377 2008 Not discharging
Scottish Water · into River Irvine · 1.7 km by river above Shewalton · 2025: 37 overflow events, 17 h
Kilmarnock Water, above Howard Parkjoins the Irvine above Shewalton6 overflows
Between Shewalton and Irvine Waterside9 overflows
- Dundonald, Auchans SPS CSO Not discharging
Scottish Water · into Dundonald Burn · 7.6 km by river above Irvine Waterside · 2025: 52 overflow events, 49 h - Station Brae Dreghorn CSO Ns351384 Not discharging
Scottish Water · into Annick Water · 6.4 km by river above Irvine Waterside · no official annual figure - Irvine, Shewalton SPS CSO Not discharging
Scottish Water · into River Irvine · 3.9 km by river above Irvine Waterside · 2025: 6 overflow events, 134 h - Irvine, 47 Sillars Meadow CSO Not discharging
Scottish Water · into Annick Water · 3.4 km by river above Irvine Waterside · 2025: 112 overflow events, 96 h - Irvine, Annick Road CSO Not discharging
Scottish Water · into Annick Water · 3.1 km by river above Irvine Waterside · 2025: 163 overflow events, 98 h - Irvine, Tarryholme SPS CSO Not discharging
Scottish Water · into Annick Water · 2.4 km by river above Irvine Waterside · 2025: 1 overflow event, 0.1 h - Milgarholm Park CSO 2012 Ns325380 Not discharging
Scottish Water · into River Irvine · 1.4 km by river above Irvine Waterside · 2025: 11 overflow events, 59 h - Irvine Lamont Drive CSO B44 Ns324381 Not discharging
Scottish Water · into River Irvine · 1.4 km by river above Irvine Waterside · 2025: 5 overflow events, 2.2 h - Fullarton Centre CSO 2009 Ns318388 Not discharging
Scottish Water · into River Irvine · 410 m by river above Irvine Waterside · 2025: 7 overflow events, 4.9 h
Annick Water, above Chapeltoun Gauging Stationjoins the Irvine above Irvine Waterside7 overflows
- Stewarton, 103/105 High Street CSO Monitor offline
Scottish Water · into Annick Water · 4.8 km by river above Chapeltoun Gauging Station · 2025: 32 overflow events, 24 h - Stewarton, 78 High Street CSO Not discharging
Scottish Water · into Clerkland Burn · 4.8 km by river above Chapeltoun Gauging Station · 2025: 38 overflow events, 21 h - Stewarton, 14 Robertland Rigg CSO Not discharging
Scottish Water · into Annick Water · 4.7 km by river above Chapeltoun Gauging Station · 2025: 4 overflow events, 0.9 h - Stewarton, 14 Annick Crescent CSO Monitor offline
Scottish Water · into Annick Water · 4.5 km by river above Chapeltoun Gauging Station · 2025: 78 overflow events, 119 h - Stewarton, Holm Street SPS CSO Not discharging
Scottish Water · into Annick Water · 3.8 km by river above Chapeltoun Gauging Station · 2025: 0 overflow events, 0 h - Stewarton WwTW Ssso Monitor offline
Scottish Water · into Annick Water · 2.5 km by river above Chapeltoun Gauging Station · 2025: no data - Stewarton WwTW 8dwf CSO Not discharging
Scottish Water · into Annick Water · 2.5 km by river above Chapeltoun Gauging Station · 2025: no data
Annick Water, above Cunninghamheadjoins the Irvine above Irvine Waterside1 overflow
- Dunlop WwTW CSO Monitor offline
Scottish Water · into Glazert Burn · 14.1 km by river above Cunninghamhead · 2025: no data
Annick Water, above Dreghornjoins the Irvine above Irvine Waterside3 overflows
Near these gauges, connection not known
Within 3 km of one of the Irvine’s gauges in a straight line, but the river map cannot say whether their water reaches it.
- Irvine Waterside PS CSO 2012 Ns317395 Not discharging
Scottish Water · into River Irvine · 500 m from Irvine Waterside in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: no data - Kilmarnock Kirkstyle School CSO Ns434366 Not discharging
Scottish Water · into River Irvine · 540 m from Glenfield in a straight line · no mapped watercourse close enough to be sure · 2025: 100 overflow events, 81 h - Irvine, Williamfield CSO Ns316399 Not discharging
Scottish Water · into River Irvine · 680 m from Irvine Waterside in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 0 overflow events, 0 h - Kilmarnock Linfern Ave East CSO Ns441373 Not discharging
Scottish Water · into Tributary Of River Irvine · 1.0 km from Glenfield in a straight line · no mapped watercourse close enough to be sure · 2025: 1 overflow event, 1.0 h - Kilmarnock, 22 Holehouse Road CSO Monitor offline
Scottish Water · into Galleon Burn · 1.1 km from Glenfield in a straight line · no mapped watercourse close enough to be sure · 2025: 26 overflow events, 43 h - Irvine, 142 Harbour St/Cross Keys CSO Monitor offline
Scottish Water · into River Irvine · 1.3 km from Irvine Waterside in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 10 overflow events, 99 h - Kilmarnock, 54 Bruce Street CSO Not discharging
Scottish Water · into Simons Burn · 1.3 km from Glenfield in a straight line · its watercourse is not on the river map · no official annual figure - Kilmarnock, 20 Kay Park Terr/Grassyards Not discharging
Scottish Water · into Galleon Burn · 1.3 km from Glenfield in a straight line · its watercourse is not on the river map · 2025: 1 overflow event, 0.1 h - Kilwinning, Almswall SPS CSO Not discharging
Scottish Water · into River Garnock · 1.5 km from Irvine Waterside in a straight line · no mapped watercourse close enough to be sure · 2025: 13 overflow events, 33 h - Dundonald, Olympic Complex No2 CSO Not discharging
Scottish Water · into Dundonald Burn · 1.5 km from Shewalton in a straight line · its watercourse is not on the river map · 2025: 155 overflow events, 694 h - Kilmarnock, 14 Walnut Road CSO Not discharging
Scottish Water · into Gargieston Burn · 1.6 km from Glenfield in a straight line · its watercourse is not on the river map · no official annual figure - Kilmarnock, 25-27 Loreny Drive CSO Monitor offline
Scottish Water · into Simons Burn · 1.7 km from Glenfield in a straight line · no mapped watercourse close enough to be sure · 2025: no data - Kilmarnock, 41 Macdonald Drive CSO Monitor offline
Scottish Water · into New Mill Burn · 1.8 km from Glenfield in a straight line · its watercourse is not on the river map · 2025: 0 overflow events, 0 h - Kilmarnock, Loreny SPS CSO Monitor offline
Scottish Water · into Simons Burn · 2.0 km from Glenfield in a straight line · no mapped watercourse close enough to be sure · 2025: 1 overflow event, 0.1 h - Beach Park SPS CSO 2009 Ns312374 Not discharging
Scottish Water · into Firth Of Clyde · 2.2 km from Irvine Waterside in a straight line · discharges to the sea, an estuary or tidal water · 2025: no data
1 more near these gauges whose connection is not known.
4 other overflows within 3 km of these gauges are placed below the Irvine’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: © Scottish Water, near-real-time Overflow Map data, open licence for reuse. EDM monitors indicate overflows; they do not confirm them, and this is not advice on water quality. Annual figures for Scotland: Scottish Water overflow event data, Open Government Licence.