Rhymney (Rhymni) water levels

Monitoring stations, source to mouth

No gauged tributary joins the Rhymney (Rhymni) above Llanedeyrn on the river map. Streams without a gauge are not counted here.

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

Near these gauges, connection not known

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

• St. Mellons Bridge Road Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into River Rhymni · 160 m from Llanedeyrn in a straight line · too close to Llanedeyrn to say which side · 2025: 1 spill, 0.3 h
• Bryngoleu Street Blackwood Overflow Not discharging
  Dwr Cymru Welsh Water · into River Rhymni · 1.2 km from Bargoed River Station in a straight line · its watercourse is not on the river map · 2025: 17 spills, 6.8 h
• Fishpond Road Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into River Rhymni · 1.5 km from Llanedeyrn in a straight line · its watercourse is not on the river map · 2025: 10 spills, 15 h
• Bedwellty Road Bridge Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into River Taff Bargoed · 2.2 km from Bargoed River Station in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 155 spills, 667 h
• Cwmgelli Blackwood Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into Sirhowy River · 2.2 km from Bargoed River Station in a straight line · not connected to this gauge on the river map · 2025: 66 spills, 205 h
• Hartland Road Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into Tributary Of Rivr Rhymney · 2.2 km from Llanedeyrn in a straight line · its watercourse is not on the river map · 2025: 0 spills, 0 h
• Oakfield Roundabout Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into Sirhowy River · 2.2 km from Bargoed River Station in a straight line · not connected to this gauge on the river map · 2025: 37 spills, 58 h
• Westville Rhymney Overflow Not discharging
  Dwr Cymru Welsh Water · into River Rhymni · 2.2 km from New Tredegar River Station in a straight line · no mapped watercourse close enough to be sure · 2025: 0 spills, 0 h
• Rhiw Syr Dafydd Hill Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into Sirhowy River · 2.3 km from Bargoed River Station in a straight line · not connected to this gauge on the river map · 2025: 41 spills, 105 h
• Pont Gwaith Farm Lane Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into Sirhowy River · 2.5 km from New Tredegar River Station in a straight line · not connected to this gauge on the river map · 2025: 21 spills, 46 h
• Hollybush Ancient Druid Storm Overflow Monitor offline
  Dwr Cymru Welsh Water · into River Sirhowy · 2.6 km from New Tredegar River Station in a straight line · not connected to this gauge on the river map · 2025: no data
• Cwm Road Argoed Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into Sirhowy River · 2.7 km from Bargoed River Station in a straight line · not connected to this gauge on the river map · 2025: 23 spills, 72 h
• Rock And Fountain Playing Fields Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into Sirhowy River · 2.7 km from Bargoed River Station in a straight line · not connected to this gauge on the river map · 2025: 25 spills, 64 h
• Woodfield Park Crescent Blackwood Overflow Not discharging
  Dwr Cymru Welsh Water · into Sirhowy River · 2.8 km from Bargoed River Station in a straight line · not connected to this gauge on the river map · 2025: 47 spills, 127 h
• Nine Mile Point Storm Overflow Not discharging
  Dwr Cymru Welsh Water · into River Sirhowy · 3.0 km from Waterloo Bridge Machen River Station in a straight line · not connected to this gauge on the river map · 2025: 9 spills, 26 h

2 more near these gauges whose connection is not known.

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