The Manchester Ship Canal Company Ltd & Anor, R (on the application of) v Environment Agency

The Manchester Ship Canal Company Ltd & Anor, R (on the application of) v Environment Agency

The Environment Agency failed to properly interpret, apply, or have regard to its own policy when it classified the sluices on the Manchester Ship Canal as formal flood defences and based its Flood Zone assessment and mapping on the assumption that the sluices would fail and remain closed. The sluices' primary...

Source-derived case information.

Parties
Claimant: The Manchester Ship Canal Company Limited; Claimant: Peel Holdings (Land and Property) Limited; Defendant: Environment Agency
Jurisdiction
England and Wales
Judgment Date
20 June 2012
Procedural Posture
Judicial Review / Judgment
Outcome
Application for judicial review allowed on Ground 1; decision quashed.
Legal Topics
Judicial Review, Flood Risk Assessment, Statutory Interpretation, Planning Policy, Environmental Regulation
Administrative Law Planning Law Environmental Law Judicial Review Flood Risk Assessment Statutory Interpretation Planning Policy Environmental Regulation

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Summary, issues, holding and outcome

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Parties

The Manchester Ship Canal Company Limited

Claimant

Peel Holdings (Land and Property) Limited

Claimant

Environment Agency

Defendant

Procedural Posture

Judicial Review / Judgment

Legal Issues

  1. 1 Whether the Environment Agency lawfully classified the Manchester Ship Canal sluices as formal flood defences under its policy for flood mapping purposes
  2. 2 Whether the Agency failed to properly interpret or apply its own policy and acted irrationally in its decision-making
  3. 3 Whether the Agency failed to take into account relevant considerations or acted inflexibly in applying its policy

Ratio Decidendi

The Environment Agency failed to properly interpret, apply, or have regard to its own policy when it classified the sluices on the Manchester Ship Canal as formal flood defences and based its Flood Zone assessment and mapping on the assumption that the sluices would fail and remain closed. The sluices' primary purpose is water level regulation for navigation, not flood defence, and under the Agency's own policy, such sluices are not to be treated as formal defences. The decision was therefore unlawful and irrational.

Court Disposition

Application for judicial review allowed on Ground 1; decision quashed.

Orders

  • The decision of the Environment Agency to classify the sluices as formal flood defences for Flood Zone mapping is quashed.