Glenavy River — water body quality
near Glenavy, Lisburn and Castlereagh
Glenavy River is a river in Lisburn and Castlereagh, near Glenavy, extending 21.3 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 |
|---|---|
| Glenavy River | Moderate |
Overall status reflects the worst stretch (precautionary).
This water body
- Type
- River
- Length
- 21.3 km
- County
- Lisburn and Castlereagh
- Location
- 54.5845, -6.1621
Others in Lisburn and Castlereagh
This page shows water-quality information, not swim-safety advice. For today's conditions and swim-safety guidance, check Water Safety Ireland.
Official classifications on this page contain DAERA/NIEA Water Framework Directive classification data © Crown copyright, licensed under Open Government Licence v3.0.