Thames Water is building its first ever “swale” scheme to protect houses in north London from flooding in times of heavy rain.
Work has started on the 60m by 10m swale, which will be about 500mm deep and is expected to be completed by March. The swale will temporarily collect excess rainwater until surface water levels subside and it can be fed into the underground system.
The water company said the scheme will be much less disruptive than installing under road large diameter storage pipes.
“We are using a new kind of technology so we can do this work with minimal disruption although this will take three months to complete so we are asking people to bear with us while we get this essential work done,” said Thames Water capital delivery director Lawrence Gosden.