Roadworks due to a potential gas leak in Maidenhead Town Centre are expected to continue into the weekend.
National Grid was alerted to the leak in Grenfell Road on Tuesday afternoon and began trying to trace the source of the escape. The work required one lane of the carriageway to close.
Work on the road yesterday morning, which also saw temporary traffic lights set up, caused severe tailbacks and traffic chaos at rush hour.
The location of the leak hadn't been found yesterday.
Spokesman Antony Quarrell said: "The heavy rain is hampering our work and making it difficult to locate the source of the gas escape."
Excavation is not being carried out overnight to avoid disturbing nearby houses.
Gas supplies are being maintained.
In Bourne End, roadworks being carried out by National Grid in Ferry Lane to locate suspected water in the gas mains, have been delayed due to heavy rain.
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