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Northern Beaches Council

January 14, 2026 Data provider: Flood Data Portal

Dee Why CBD Flood Study Update

Warringah Council has identified a need to prepare a drainage and flood mitigation plan for the Dee Why Town Centre. The plan is needed to accompany the Dee Why Town Centre...

Dee Why hydraulic model hydrologic model
Northern Beaches Council

January 14, 2026 Data provider: Flood Data Portal

Dee Why South Catchment Flood Study

This report has been prepared for Warringah Council to define the nature and extent of flood in the Dee Why South Catchment. Flood modelling was completed to define flood...

Dee Why Narraweena hydraulic model hydrologic model
Northern Beaches Council

December 17, 2025 Data provider: Flood Data Portal

Dee Why South Catchment Floodplain Risk Management Plan (Draft) - Report

Complete report

Dee Why Dee Why Lagoon Howard Avenue May Road McIntosh Road Narraweena Oaks Avenue Pittwater Road Redman Road Waratah Parade
Northern Beaches Council

December 17, 2025 Data provider: Flood Data Portal

Dee Why and Curl Curl Lagoons - Floodplain Risk Management Plan (Vol 3 Draft) - Report

Complete report

Curl Curl Dee Why Pittwater Road

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