Firefighters are at the scene of a burst water main in Lanthorn Close, in Neath Hill.
Three fire engines and Anglian Water are on site after the main burst this morning.
One eye-witness told the Citizen: "The underpass is completely flooded, and the water is affecting a lot of gardens, I should think about 10 or 12 of them.
"It looks like they are trying to protect the houses. It's bad."
Images: Glyn Jones