Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, 100" Plate Mill, Along Monongahela River, ...
See also HAER PA-200 for additional documentation. Includes written data (pages 101 through 110). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Edgar Thomson Works, Along Monongahela River, Braddock, All...
Significance: Named after the president of the Pennsylvania Railroad and early financial backer of the enterprises, was the first integrated Bessener steel works constructed in the Pittsburgh district by Andrew... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Edgar Thomson Works, Along Monongahela River, Braddock, All...
Significance: Named after the president of the Pennsylvania Railroad and early financial backer of the enterprises, was the first integrated Bessener steel works constructed in the Pittsburgh district by Andrew... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Edgar Thomson Works, Along Monongahela River, Braddock, All...
Significance: Named after the president of the Pennsylvania Railroad and early financial backer of the enterprises, was the first integrated Bessener steel works constructed in the Pittsburgh district by Andrew... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More
U.S. Steel Edgar Thomson Works, Along Monongahela River, Braddock, All...
Significance: Named after the president of the Pennsylvania Railroad and early financial backer of the enterprises, was the first integrated Bessener steel works constructed in the Pittsburgh district by Andrew... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
Mesta 160-Inch Plate Mill, Defense Plant Corporation, Homestead Works,...
See also HAER PA-200-F for additional documentation. Includes photographs. See also HAER PA-343 for related documentation. Includes written data. Significance: Rated with an annual capacity of six hundred thous... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Homestead Works, Press Shop No. 2, Along Monongahela River,...
See also HAER PA-200 for additional documentation. Includes written data (pages 134 & 135). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
Douglas Aircraft Company Long Beach Plant, 3855 Lakewood Boulevard, Lo...
Significance: As the Douglas Aircraft Company Long Beach plant, the facility made a significant contribution to the development of the aviation industry in southern California. It was constructed as a critical... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Homestead Works, Along Monongahela River, north of Eighth A...
Significance: Established in 1879, Homestead Works is one of six plants (Homestead, Edgar Thomson, Duquesne, Irvin, National and Clairton) which, until the collapse in 1982, comprised U.S. Steel's Mon Valley wo... More
U.S. Steel Homestead Works, 160" Plate Mill, Along Monongahela River, ...
See also HAER PA-301 for additional documentation. Includes drawings & written data. See also HAER PA-200 for additional documentation. Includes written data (pages 110 through 119). Significance: As a group, t... More
U.S. Steel Edgar Thomson Works, Blast Furnace Plant, Along Monongahela...
Survey number: HAER PA-384-A Building/structure dates: 1898 Initial Construction Building/structure dates: 1916 Subsequent Work Building/structure dates: 1927 Subsequent Work Building/structure dates: 1941-... More
U.S. Steel Duquesne Works, Heat Treatment Plant, Along Monongahela Riv...
See also HAER PA-115 for additional documentation. Includes written data (pages 182 through 189). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More