Lostock Hall in Lancashire saw severe flooding earlier this year when a flash thunderstorm released a huge amount of water in a very short space of time.
Roads including Lourdes Avenue, Leyland Road and Croston Road were all left under several feet of water as residents tried in vain to stop the water coming into their homes.
After the flooding subsided a drainage contractor performed a detailed CCTV survey of the drainage system underneath Leyland Road and Cootes Lane to find the cause of the problem. And then undertook a cleaning exercise on the drains in question to remove the build up of any deposits and silt found. However, the survey information revealed that it was perhaps just the amount of water that caused the flooding. A spokesperson from United Utilities confirmed that the sewers in question were never built to cope with such a large quantity of water in such a short space of time.
“A minimal amount of silt removed from Cootes Lane’s sewer.
“No other blockages where found.
“Fats, oils and greases were found in the sewer on Leyland Road and visits were made to businesses to give advice around what not to flush into the public sewer.
“The Lostock Hall area suffered two days of heavy rain in July which was identified as a one-in-20 year’s storm.
“The network was not designed for this amount of rainfall.
“The first five months of 2010 were the driest on record and the significant open land nearby was so hard the water just had no natural way to soak through. We understand the local council has work to complete on its own highway gullies, which will help.
“Our sewer network is operating normal for the conditions it was designed for.”