A major road in Elstree has been closed for emergency works.
The A411 Watford Road is shut between Aldenham Road and The Waterfront business park due to a burst water main.
Most of the traffic is diverting via the A41 and Elstree Hill so expect delays in the area.
Affinity Water has been given until July 16 to complete the repair.
There is still access to The Fishery.
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