Affinity Water will be replacing water mains along the A404 Watford Road, a major route running from Wembley to Harrow and passing Northwick Park Hospital.
The works will take place between Northwick Park Roundabout and John Lyon Roundabout, with rolling multi-way traffic lights in place to manage traffic flow.
The project will begin on Tuesday 25 February 2025 and is set to last five months, finishing on Tuesday 1 July 2025. Work will take place from 8am to 6pm, Monday to Friday, with various timings on weekends.
The work aims to upgrade the infrastructure to ensure the continued supply of high-quality drinking water to the local community.
Harrow Online have approached Affinity Water for further information on the project.

Chris Mitchell is the founder and editor of Harrow Online, Harrow’s leading local news platform.
He launched Harrow Online in 2010 as a Facebook page sharing local news and information. Since then, it has grown into a trusted source for breaking news, crime, council decisions, planning, transport, business and community stories across the borough.
Harrow Online reaches hundreds of thousands of readers each month and has a social media audience of more than 200,000 followers.
For news tips, press releases or enquiries, contact Chris at info@harrowonline.org.




