Northern Beaches Council is set to start Narrabeen Lagoon entrance clearance works, a key project to reduce flood risk and support one of the region’s most iconic waterways.
Scheduled to start in early September 2025, the works will involve temporarily closing the mouth of the lagoon and then removing between 22,000 and 30,000 cubic metres of sand around the Ocean Street Bridge area of the Lagoon. This sand will be relocated to Collaroy-Narrabeen Beach by truck, with a smaller portion placed at Lagoon Street Reserve.
Mayor Sue Heins said the works are a proactive step to protect the community and environment. “Narrabeen Lagoon is a treasured part of our coastline, but it’s also vulnerable to flooding. These clearance works are based on expert advice and will help safeguard homes, businesses and public spaces.
“We’re committed to managing this area responsibly and ensuring the lagoon remains a safe and beautiful place for everyone,” Mayor Sue Heins said.
Birdwood Park carpark (on the southern side of Ocean Street Bridge) will be closed to the public while works are undertaken. Equipment will be located on both sides of the lagoon near the Ocean Street Bridge with trucks accessing the beach via Mactier Street and the Collaroy Beach Reserve.
To minimise impacts such as noise, dust and pedestrian diversions Council will work closely with the contractor to ensure all mitigation measures are implemented appropriately.
This initiative is part of Council’s ongoing Narrabeen Lagoon Entrance Management Strategy and is supported by the Commonwealth Government through the NSW Flood Recovery and Resilience Grant Program.
The project is expected to be completed before the December school holidays, subject to weather conditions. For more information on Lagoon management visit www.northernbeaches.nsw.gov.au
