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Ford City in Armstrong County, Pennsylvania — The American Northeast (Mid-Atlantic)
 

The Pittsburgh Glass Plate Company

— The Ford City Trail —

 
 
The Pittsburgh Glass Plate Company Marker image. Click for full size.
Photographed by Bradley Owen, October 3, 2025
1. The Pittsburgh Glass Plate Company Marker
Inscription.
In 1888 the plant of the Ford City Plate Glass Company was completed and the town of Ford City had been established. A year later, the successfully managed Pittsburgh Plate Glass Company began operations at the Ford City site and it became known as Works Three. During the same year construction of another plant at Ford City was started by Pittsburgh Plate. This plant was known as Works Four.

In 1931, Works Six of Charleroi, PA was moved to Ford City and became Ford City Works Six. This plant was built adjacent to Works Four, and together they constituted the world's largest plate glass plant. Workers entered Works Six using the under-the-railroad tracks tunnel that still stands at the intersection of Third Avenue and Ninth Street.

By 1940, complete mechanization of plate glass was achieved at Works Four with the installation of a continuous tank. In addition to plate glass manufacture, Works Four had a modern mirror production line and complete facilities for bending and tempering.

Production continued at a high rate throughout the 1950s and 1960s, but started to taper down as the years went by. PPG in Ford City finally closed its doors in 1993.

(Captions):

Birdseye view of Ford city PPG

The Great Fire at PPG May 1910

Works Four

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Sand Pile used in the glass making process. Located just south of the bridge

Works Five before Works Six was added in 1931

Works Six showing four sets of railroad tracks

Original PPG Office Building. Notice that the railroad tracks were, then, at street level.

Works Six under-the railroad tracks entrance Tunnel

The "new" PPG Office Building. Built in 1938

Continuous Glass Rolling Process

Photos are courtesy of Bill Oleksak and Larry Vorpe

 
Erected 2020 by The Ford City Lions Club.
 
Topics. This historical marker is listed in these topic lists: DisastersIndustry & CommerceRailroads & Streetcars. A significant historical year for this entry is 1888.
 
Location. 40° 45.896′ N, 79° 32.286′ W. Marker is in Ford City, Pennsylvania, in Armstrong County. It is on 3rd Avenue north of 4th Street, on the left when traveling north. Marker is located on the Armstrong Trail. Touch for map. Marker is at or near this postal address: 451 3rd Avenue, Ford City PA 16226, United States of America. Touch for directions.

Regionally, this marker is in Greater Pittsburgh. It is also in the American Northeast, in the Mid-Atlantic, in Appalachia, and specifically in Northern Appalachia. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Haudenosaunee (Iroquois) Confederacy and also one of the original Thirteen Colonies.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Ford City Clubs & Organizations Past and Present (about 800 feet away, measured in a direct line); Gone, But Not Forgotten (approx. Ό mile away); Crossing The Allegheny River (approx.
The Pittsburgh Glass Plate Company Marker image. Click for full size.
Photographed by Bradley Owen, October 3, 2025
2. The Pittsburgh Glass Plate Company Marker
0.4 miles away); The Flood That Changed Ford City (approx. 0.4 miles away); John B. Ford (approx. 0.4 miles away); Ford City Veterans Monument (approx. 0.4 miles away); German World War II Cannon (approx. 0.4 miles away); Ford City Anniversary (approx. 0.4 miles away). Touch for a list and map of all markers in Ford City.
 
 
Credits. This page was last revised on October 30, 2025. It was originally submitted on October 29, 2025, by Bradley Owen of Morgantown, West Virginia. This page has been viewed 72 times since then and 30 times this year. Photos:   1, 2. submitted on October 30, 2025, by Bradley Owen of Morgantown, West Virginia.
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Jun. 5, 2026