2 gauges from Felindre Road River Station to Keepers Lodge River Station. None is above its typical high. 2 storm overflows upstream are discharging now. Gauges in Bridgend; levels are checked every 15 minutes.
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.
Streams and rivers with a gauge whose water joins the Ewenny above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Its water passes Keepers Lodge River Station and every gauge below it on the Ewenny. It does not pass Felindre Road River Station or the gauges above it.
Named streams on the river map that flow into the Ewenny 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.
Nant Ganna (joins about 2.2 km above Keepers Lodge River Station)
Nant Heol y geifr (joins about 3.2 km above Keepers Lodge River Station)
Storm overflows upstream
5 storm overflows are traced upstream of Keepers Lodge River Station, the Ewenny’s lowest gauge on the river map: on the Ewenny itself, on its gauged tributaries, and on smaller streams that join above there.
2 report discharging now
3 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 Keepers Lodge River Station: 314 spills over 1,665 hours in total, across all 5.
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 Ewenny includes the smaller streams that join it there.
Between Felindre Road River Station and Keepers Lodge River Station3 overflows · 1 discharging now
Hendre Road Pencoed Storm OverflowNot discharging Dwr Cymru Welsh Water · into Nant Heol-Y-Geifr · 5.9 km by river above Keepers Lodge River Station · 2025: 48 spills, 140 h
Redlands Close Pencoed Storm OverflowNot discharging Dwr Cymru Welsh Water · into Nant Heol Y Geifr · 5.5 km by river above Keepers Lodge River Station · 2025: 47 spills, 83 h
North Treoes Bridge Storm OverflowDischarging now since Dwr Cymru Welsh Water · into Nant Ganna · 2.9 km by river above Keepers Lodge River Station · 2025: 30 spills, 538 h
Ewenni Fach, above Old Mill River Stationjoins the Ewenny above Keepers Lodge River Station2 overflows · 1 discharging now
Bethlehem View Fields Storm OverflowDischarging now since Dwr Cymru Welsh Water · into Ewenni Fach River · 3.4 km by river above Old Mill River Station · 2025: 115 spills, 614 h
Llanharan Storage Storm OverflowNot discharging Dwr Cymru Welsh Water · into Ewenni Fach River · 2.0 km by river above Old Mill River Station · 2025: 74 spills, 291 h
Near these gauges, connection not known
Within 3 km of one of the Ewenny’s gauges in a straight line, but the river map cannot say whether their water reaches it.
Hendre Road Pencoed Storm OverflowNot discharging Dwr Cymru Welsh Water · into River Ewenni · 1.3 km from Felindre Road River Station in a straight line · no mapped watercourse close enough to be sure · no official annual figure
Coychurch Road Storm OverflowNot discharging Dwr Cymru Welsh Water · into Nant Heol Geifr · 1.4 km from Felindre Road River Station in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 34 spills, 196 h
3 other overflows within 3 km of these gauges are placed below the Ewenny’s lowest gauge or on another river, so not listed.