Northern Beaches Council will start the $10.2 million major upgrades at Macpherson Street in Warriewood on Tuesday 4 October.

This essential project will provide a variety of upgrades including a 12 metre span bridge over Narrabeen Creek, underground services, shared pathways and road upgrades. It will also ensure Macpherson Street, which has a long history of flooding, will become a safe evacuation route even in the event of a 100 year flood and predicted climate change impacts.

"This massive undertaking is funded from Warriewood Valley developer's levies and will deliver vital improvements to infrastructure and services that will benefit the community now and into the future," said Ben Taylor, Northern Beaches Council Acting General Manager.

Council has been working closely with the contractors, as well as State Transit Authority to ensure there is minimal disruption to the local community while Macpherson Street is closed for up to 12 months between Boondah and Warriewood Roads.

"Along with the recently completed Garden Street upgrades, this project will provide improved access and linkages to the built and natural environment, and will transform the area.

"Once the project is complete, residents will also start to see improvements in the natural environment, as the plan will restore creek flows and improve a vital wildlife corridor," Mr Taylor said.

Garden Street, which has also recently had major upgrades, will be open prior to works on Macpherson Street starting.

During the closure period Council has ensured adjacent land owners will have access.

More information: pittwater.nsw.gov.au/council/projects