US Plans Wastewater Tunnel

The US is planning to build a $244m tunnel system, pump station and treatment facility in Cincinnati, US, to prevent sewage and stormwater entering into waterways.

US-based engineering firm Black & Veatch is designing the 1.2 mile-long Lower Mill Creek Tunnel, which will have a 30ft diameter and a capacity to hold 33 million gallons of sewer overflows.

The tunnel is intended to reduce combined sewer overflows by 85% and eliminate all sanitary sewer overflows, improving the quality of life for two million people in the metropolitan area.

The design of the project is expected to begin in 2011, with overall project construction to be completed in 2018.