The underground tank is part of United Utilities’ scheme to reduce the number of times that storm overflows discharge sewage into Walney Channel during heavy rainfall.
The firm’s regional delivery manager, Fiona Edmondson, said the work was “essential” to improve water quality in the channel.
She said United Utilities would work with the council to minimise disruption.
The bowling club, Ferry Hotel, stables, boating club and allotments will be accessible during the works.
The water firm said the scheme was part of a £100m investment upgrading 21 storm overflows in Barrow.