Salini Impregilo and The Lane Construction have begun construction on the $188m Three Rivers Protection and Overflow Reduction Tunnel (3RPort) in Indiana, US.
The 5-mile long tunnel will be constructed more than 200ft to 250ft underground. Work on the tunnel project is expected to be completed in 2021.
The deep-rock tunnel that will be capable of flowing 800 million gallons of water per day is a major portion of the effort to clean-up Fort Wayne’s rivers and protect neighbourhoods from basement back-ups and street flooding.
Upon completion, the tunnel system, which has been designed with a life expectancy of 100 years, will decrease 90% of combined sewage overflow (CSO) into the rivers, which occurs during big rain storms.
The Lane Construction executive vice president of P3, large projects and tunnelling Giuseppe Quarta said: “We are very excited about this project. This is the fourth Combined Sewer Overflow (CSO) we are building in the USA.
“Projects that improve quality of life, environmental projects, and renewable energy projects are part of the values and the main core business of our group of companies. We look forward to working with the local workforce and the local business community and authorities.”