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Evolution of the Portuguese Water Security Policy (1967-2002): Governance, Regulatory Advances and Challenges in Flood Risk Management

IWRA World Water Congress 2025 Marrakech Morocco
Water Security and Water-Related Risks
Author(s): Noémia Salgado Cunha - Miguel Torga Higher Institute (Portugal)
Noémia Salgado Cunha - Miguel Torga Higher Institute (Portugal)
2 December 2025

Oral: PDF

Abstract

Scientific Problem

Floods in Portugal: a recurring and destructive natural hazard

Historical responses: reactive, fragmented and with weak prevention

Regulatory evolution: slow and triggered by critical events (1967, 1981, 1997 and 2000/2001)

Structural vectors: political transition (dictatorship to democracy) and European integration (European Economic Community (EEC), now the European Union (EU))


Central Question and Objectives

Central Question

How has flood risk regulation evolved in Portugal (1967-2002) and what institutional and political factors explain this change?

Objectives

1. Analyse regulatory developments and identify regulatory regimes

2. Characterise phases and milestones in risk regulation

3. Assess the role of the political transition to democracy and European integration in consolidating a preventive approach


Conclusions

Gradual transition: from geometric control to basin planning and integrated prevention

Technical and institutional consolidation: Adjacent zones, flood-threatened zones, National Ecological Reserve, Water Resource Plans and National Water Plan form a robust regulatory framework

Risk governance: remains predominantly technocratic and administrative

Integration with civil protection and climate agenda: partial and delayed

Regulatory consistency and implementation: high degree of regulatory formalisation, but preventive implementation remains partial


Future agenda: analyse the post-2002 period, including the Floods Directive and climate adaptation, assessing the practical effectiveness of the rules.