US city completes sewer replacement project

Water utility Sioux Falls Public Works has completed a $13m sewer replacement project in Sioux Falls, South Dakota, US, two years ahead of schedule.

The upgrade of the ageing sewer system is expected to double the pipeline’s flow capacity.

The utility installed a 50,800ft pipe, which extends across three parks, two major roadway crossings, a crossing of the Big Sioux River and a 500ft tunnel.

The installation of the pipe began earlier this year and started operations on 30 August 2011.