Project Overview
Allegheny River Tunnel
Regional Tunnel System
Status
Design
Benefits
Part of reducing the volume of wet weather overflows by approximately 7 billion gallons per year by the end of 2036.
Frequently Asked Questions
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Contact UsAllegheny River Tunnel
The Allegheny River Tunnel (ART) project will be the second of the three tunnel projects. Once complete, it will consist of 6.2 miles of deep tunnel connecting to the Ohio River Tunnel near the Veterans’ Bridge. The project is also anticipated to include 13 deep shafts, 17 regulator structures, and other near surface facilities to be constructed in 7 municipalities – including the City of Pittsburgh, Millvale, Shaler, Etna, Sharpsburg, O’Hara and Aspinwall. This new infrastructure will be connected to the approximately 6 miles of deep tunnel interceptors that already exist in the project area.
Status
The final design for a near surface portion of the project to be constructed in the Sharpsburg, O’Hara and Aspinwall area was initiated in 2023 and is now advancing towards a 60% design. The ART final designer for the rest of the project was selected in 2024 and initiated work in January 2025. Design completion is anticipated in late 2027/early 2028. Stay tuned!