Latest from the ALCOSAN tunnel system

AS-1: S Canal St. ~ West of Chestnut St.

AS1 – Carpenter Way Area Street Closures

A58 – River Avenue & Voeghtly Street Parking Closure

ORT Pre-construction Public Meeting – McKees Rocks

ALCOSAN is hosting a community meeting in McKees Rocks before construction begins on the Ohio River Tunnel, a key part of ALCOSAN's Clean Water Plan. Drop in any time between 4 and 8 p.m. to meet the project and contractor teams, see site-specific plans and schedules, and ask questions.

AS-1: Carpenter Way ~ West of Chestnut St.

AS-1: Warfield St. ~ North of Progress St.

AS-1: Chesbro St. ~ North of Progress St.

ORT Pre-construction Public Meeting - City of Pittsburgh

ALCOSAN is hosting a community meeting in the City of Pittsburgh before construction begins on the Ohio River Tunnel, a key part of ALCOSAN's Clean Water Plan. Drop in anytime between 4 and 8 p.m., October 6, 2026, to meet the project and contractor teams, see site-specific plans and schedules, and ask questions.

ALCOSAN Issues Notice to Proceed for Ohio River Tunnel Project

STEEL CITY TUNNEL PARTNERS: 'Lane and Brayman, in Joint Venture (Steel City Tunnel Partners), Win $1 Billion ALCOSAN Ohio River Tunnel Contract