Pittsburgh's $3B sewer overhaul begins—but costs and bills are already soaring
Pittsburgh's $3B sewer overhaul begins—but costs and bills are already soaring
Pittsburgh's $3B sewer overhaul begins—but costs and bills are already soaring
The largest public works project in southwestern Pennsylvania’s history is set to begin this summer. The Allegheny County Sanitary Authority (Alcosan) plans to overhaul its ageing sewer system to stop billions of gallons of polluted water entering local rivers. But costs have already risen beyond the original $3 billion budget before construction has even started.
Residents are footing the bill through sharply higher rates, with annual increases since 2019 nearly doubling the average household charge.
The project aims to tackle a long-standing problem: an outdated sewer network that dumps around 9 billion gallons of sewage-tainted water into rivers and streams each year. To fix this, Alcosan will expand its treatment plant and build 18 miles of underground tunnels. These tunnels will capture and treat waste before it pollutes waterways.
So far, $500 million has been spent upgrading the treatment plant. The next phase involves constructing 5 miles of tunnels along and beneath the Ohio River and Pittsburgh’s North Side. However, the river tunnel section alone has come in $200 million over budget, pushing the entire project beyond its initial $3 billion estimate. Completion is expected to take a decade, meaning the full environmental benefits won’t be clear until the 2030s. In the meantime, households are already feeling the financial strain. Alcosan bills have risen by 7% annually since 2019, nearly doubling the average yearly cost. Pittsburgh Water has also raised its rates by 15%, lifting the typical monthly bill from £100 to £115. Kimberly Kennedy, Alcosan’s director of engineering and construction, has warned that further rate hikes are likely as the project progresses.
The overhaul will take years to finish, with costs continuing to climb. Residents will keep paying more through higher bills, while the environmental improvements remain years away. Once complete, the system should drastically reduce the amount of untreated sewage entering local waterways.