First published Oct 23, 2026, 4:15:15 AM UTC · Last updated Oct 23, 2026, 4:15:15 AM UTC

Utility works road disruption — [A409] HIGH STREET (HA3 ) (Harrow)

Reported by Transport for London Road Disruptions

A burst water main has blocked the A409 in both directions at the Locket Road junction in Harrow, and drivers are advised to use an alternative route. The listed disruption runs from 23 to 28 October 2026.

At a glance

Affected location: Harrow

Illustrative image: High Street, Harrow on the Hill, Middlesex This view is looking southwards along that part of the High Street south of the West Street junction — Dr Neil Clifton/Wikimedia Commons, CC BY-SA 2.0

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Why it matters

The blockage affects traffic at a named Harrow junction and requires an alternative route.

Location

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Generated scores

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Confidence: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 1/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 4/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

Transport for London Road Disruptions Utility works road disruption — [A409] HIGH STREET (HA3 ) (Harrow)Powered by TfL Open Data. Contains OS data © Crown copyright and database rights 2016. Geomni UK Map data © and database rights 2019. Usage terms

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