What is the latest status of the project “ALCOSAN Tunnel System”?

The status recorded for “ALCOSAN Tunnel System” is Planned.

Who are the main government, EPC, and private stakeholders for “ALCOSAN Tunnel System”?

Taiyo maps the stakeholders of “ALCOSAN Tunnel System”: government bodies (Allegheny County Sanitary Authority).

What is the budget and commercial profile for the project “ALCOSAN Tunnel System”?

Taiyo normalizes the budget of “ALCOSAN Tunnel System” to USD 2000000000.

Where can I verify the source and access all details for “ALCOSAN Tunnel System”?

This Taiyo project page references WESA along with the original URL (https://www.wesa.fm/politics-government/2022-03-31/alcosan-wants-public-input-on-a-2-billion-tunnel-system-to-reduce-sewage-overflow). Taiyo standardizes official data into a consistent, searchable project profile.

ALCOSAN Tunnel System

Sector: Water Supply and Storage • Location: Pittsburgh, Pennsylvania, United States

Source: WESA

Project

Planned

The Allegheny County Sanitary Authority is planning a 16.5-mile tunnel system under Pittsburgh to manage sewage and stormwater runoff as part of its $2 billion "Clean Water Plan." This system aims to reduce sewage overflow by seven billion gallons per year and improve water quality in local waterways.

Status: Prospective
Sector: Water Supply and Storage, Tunnel, Government, Waste Processing and Treatment
Location: Pittsburgh, Pennsylvania, United States of America
Updated: 22 Jul 2026
Source: WESA

ConstructChat

Ask ConstructChat about ALCOSAN Tunnel System

Pick a question to edit it, or write your own.

First answer free · no account

I am a

Project Information

5 Q

The project “ALCOSAN Tunnel System” is an infrastructure initiative in the Water Supply and Storage sector, located in Pittsburgh, Pennsylvania, United States. Taiyo aggregates data on it from WESA.

Participants

Sponsoring Agency

Status

Original status	Planned
Taiyo status	Prospective
Taiyo last update	2026-07-22

Contact

Not available for this record.

Description

Description	The Allegheny County Sanitary Authority is planning a 16.5-mile tunnel system under Pittsburgh to manage sewage and stormwater runoff as part of its $2 billion "Clean Water Plan." This system aims to reduce sewage overflow by seven billion gallons per year and improve water quality in local waterways.
Original sector	Water Management
Budget

Location

Country	United States of America (USA)
State	Pennsylvania
City	Pittsburgh

Source

Source	WESA
URL

More Details

Record type	Project
Sector	Water Supply and Storage, Tunnel, Government, Waste Processing and Treatment
Article published date	2025-03-20

Research

Free account

View all details

You are reading the public part. A free account opens the rest:

Every detail on this project
News and media coverage
Technical research

View all details

Free account · no card · lands you back on this project

ALCOSAN Tunnel System

Ask ConstructChat about ALCOSAN Tunnel System

Project Information FAQ

Project Information

Research

View all details

More Water Supply and Storage projects in United States