Debris lined streets in Wealdstone on Tuesday (October 24) after two burst water mains led to more than 100 people being evacuated from their homes.
One of the mains, in Cecil Road, led to an entire street being submerged in water at around 12pm - affecting the water supply in dozens of nearby streets.
Water levels during the afternoon reached as high as 1.5 metres, with firefighters wading through the flood providing piggybacks to residents.
Shocking pictures, released by Harrow Council after the flood subsided, show debris scattered near the two mains in Harrow High Street and on the junction of Cecil Road and Gordon Road.
As of 4.15pm the flood had been dealt with by the London Fire Brigade and Affinity Water, but road closures and diversions were still in place.
A spokesman for the water suppliers said a number of residents were now being let back into their homes.
He said: “We are sorry for any inconvenience caused by bursts on two large trunk mains.
"We have configured our network to maintain supplies, however some customers may experience low pressure whilst repairs take place.
"We are working closely with the police and fire brigade who evacuated residents in Cecil Road as a matter of precaution, however many residents have now returned to their homes.
"We would like to thank our customers for their patience whilst these repairs take place.”
The burst water main, which reached a height of 24 inches, meant residents were asked to store water to drink, in case their supply was completely switched off.
Several bus routes were also affected whilst the flooding took place.
Check out our live blog for more on the flooding this Tuesday (October 24).
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