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Allegheny Mountain Realignment Project

Sector: Tunnel • Location: Pennsylvania, United States

Source: State Affairs

Project
Preliminary Engineering

A proposal to reroute the Pennsylvania Turnpike by constructing a new roadway atop the Allegheny Mountain ridge. The project is in the preliminary engineering phase and has been on the drawing board for 30 years. The commission estimates the cost could reach $500 million, with a more solid estimate expected after preliminary engineering completion in 2028. Opponents suggest adding a third lane to

Status
Prospective
Sector
Tunnel, Commercial, Road
Location
Pennsylvania, United States of America
Updated
22 Jul 2026
Source
State Affairs

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Project Information

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The project “Allegheny Mountain Realignment Project” is an infrastructure initiative in the Tunnel sector, located in Pennsylvania, United States. Taiyo aggregates data on it from State Affairs.

Participants

Not available for this record.

Status

Original status

preliminary engineering

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

A proposal to reroute the Pennsylvania Turnpike by constructing a new roadway atop the Allegheny Mountain ridge. The project is in the preliminary engineering phase and has been on the drawing board for 30 years. The commission estimates the cost could reach $500 million, with a more solid estimate expected after preliminary engineering completion in 2028. Opponents suggest adding a third lane to an existing mountain tunnel instead of building a new roadway.

Original sector

Transportation

Budget

Location

Country

United States of America (USA)

State

Pennsylvania

Source

Source

State Affairs

URL

More Details

Record type

Project

Sector

Tunnel, Commercial, Road

Article published date

2026-05-15

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