Pittsburgh begins $2-billion project to upgrade sewer system


Work has started on the $2-billion sewer system upgrade in Pittsburgh, according to a report in Construction Equipment.

A new engineering firm was hired to oversee the expansion of the city’s waste water treatment plant and get the overhaul of the entire system flowing, the Pittsburgh Post-Gazette reported.

The Allegheny County Sanitary Authority’s board of directors hired Michael Baker International to oversee the $300 million-plus Alcosan plant expansion that is part of an overall sewer system upgrade that will last until 2027 and cost at least $2 billion.

Michael Baker will be paid an estimated $30 million to enforce the project’s schedule, keep costs under control, and meet regulations. The plant expansion is expected to reduce by 3 billion gallons the amount of wastewater that flows, untreated, into Pittsburg-area rivers and streams each year, according to the report.


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