High Court (TCC), Graham Jones J
Claim No: TCC/07/06/CF0185
Judgment: 2009
Background
On 30 October 2000, severe flooding occurred in the Crindau area of Newport, affecting around 130 homes, including the claimants’ properties. The flooding arose from the Malpas Brook after heavy rainfall and inadequate management of the Gwaelod‑y‑Garth reservoir and associated sluice gate. The claimants alleged strict liability, nuisance, and negligence.
Issues
1. Whether strict liability under Rylands v Fletcher applied.
2. Whether statutory authority insulated the Council from liability.
3. Whether the Council was liable in nuisance/negligence for failures in monitoring, operating the sluice gate, and responding to warnings.
4. Whether the failures caused the flooding.
Strict Liability
The Court rejected Rylands v Fletcher. The reservoir was routine flood‑management infrastructure, not a non‑natural use of land. Extending strict liability to such infrastructure was inappropriate.
Statutory Authority
The statutory authority defence failed. The reservoir was built in the 1930s, outside later statutory authorisations, and the statutory scheme did not mandate the design or method of operation used.
Nuisance & Negligence
The Court held that the Council owed a duty of care. The Council breached that duty by:
• failing to respond to weather/flood warnings;
• failing to monitor reservoir levels adequately;
• operating the sluice gate in a fixed and unsuitable position;
• failing to understand and respond to flood‑risk dynamics.
The judge preferred the claimants’ expert evidence, finding significant operational failures by the Council.
Causation
Had the Council monitored and reacted properly, the flood would have been prevented or significantly reduced. Failures in sluice gate operation materially contributed to the flooding.
Outcome
The Council was found liable in nuisance and negligence. Strict liability was rejected and statutory authority did not apply. Damages were left for later assessment.
Key Points
• Local authorities can owe a duty of care in operating flood‑risk infrastructure.
• Rylands v Fletcher is narrowly applied.
• Failure to act on weather warnings and failure to manage flow‑control structures can amount to negligence.

