ALCOSAN Wastewater Tunnel and Treatment Plant Expansion
Planned · Pennsylvania · Last reported Aug 2025
Source: CBS News
A multi-billion-dollar project to clean up Pittsburgh's rivers and streams by expanding the wastewater treatment plant and constructing 16 miles of tunnels to capture sewage-laced rainwater before it flows into waterways. The first phase includes a 3.8-mile tunnel under the Allegheny and Ohio rivers from the 16th Bridge to the treatment plant.
- Status
- Prospective
- Sector
- Water Supply and Storage, Waste Processing and Treatment, Bridge, Tunnel, Government
- Location
- Pittsburgh, Pennsylvania, United States of America
- Updated
- 22 Jul 2026
- Source
- CBS News
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Project Information FAQ
Project Information
Participants
Sponsoring Agency |
Status
Original status | planned |
Taiyo status | Prospective |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | A multi-billion-dollar project to clean up Pittsburgh's rivers and streams by expanding the wastewater treatment plant and constructing 16 miles of tunnels to capture sewage-laced rainwater before it flows into waterways. The first phase includes a 3.8-mile tunnel under the Allegheny and Ohio rivers from the 16th Bridge to the treatment plant. |
Original sector | Water and Wastewater |
Budget |
Location
Country | United States of America (USA) |
State | Pennsylvania |
City | Pittsburgh |
Source
Source | CBS News |
URL |
More Details
Record type | Project |
Sector | Water Supply and Storage, Waste Processing and Treatment, Bridge, Tunnel, Government |
Article published date | 2025-09-16 |
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