Derry — water body quality
near Clonegal, Carlow
Derry is a river in Carlow, near Clonegal, extending 140.1 km.
Official classification
Moderate
Assessed 2026
Moderate is the first Water Framework Directive class that falls short of the Directive’s objective: the biological communities here differ moderately from those expected in a near-natural water body of this type, so a programme of measures applies.
| Stretch | Status |
|---|---|
| Derry | Good |
| Derry | Moderate |
| Derry | Good |
| Derry | Good |
| Derry | Good |
| Derry | Moderate |
Overall status reflects the worst stretch (precautionary).
This water body
- Type
- River
- Length
- 140.1 km
- County
- Carlow
- Location
- 52.7639, -6.5479
Others in Carlow
This page shows water-quality information, not swim-safety advice. For today's conditions and swim-safety guidance, check Water Safety Ireland.