Connswater — water body quality
near Castlereagh, City of Belfast
Connswater is a river in City of Belfast, near Castlereagh, extending 7.7 km.
Official classification
Poor
Assessed 2026
Poor ecological status means the Water Framework Directive assessment found major alteration to this water body’s biological communities, with many of the species expected in an undisturbed water body of its type absent or much reduced.
| Stretch | Status |
|---|---|
| Connswater | Poor |
Overall status reflects the worst stretch (precautionary).
This water body
- Type
- River
- Length
- 7.7 km
- County
- City of Belfast
- Location
- 54.5941, -5.8494
Others in City of Belfast
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.