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Confluence of Allegheny and Monongahela rivers, Pittsburgh, Pennsylvania

Confluence of Allegheny and Monongahela rivers, Pittsburgh, Pennsylvan...

Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh, Pennsylvania

Houses along Monongahela River and Boulevard of the Allies. Pittsburgh...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Industrial development along Monongahela River, Pittsburgh, Pennsylvania

Industrial development along Monongahela River, Pittsburgh, Pennsylvan...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela...

Survey number: HAER PA-380-E Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

U.S. Steel Homestead Works, Machine Shop No. 2, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Machine Shop No. 2, Along Monongahela Rive...

See also HAER PA-200 for additional documentation. Includes written data (pages 138 through 141). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More

Monongahela Connecting Railroad Company, Hot Metal Bridge, Spanning Monongahela River at mile post 3.1, Pittsburgh, Allegheny County, PA

Monongahela Connecting Railroad Company, Hot Metal Bridge, Spanning Mo...

Significance: Formerly enabled the hauling of molten iron from J & L Blast Furnaces on the north side over the bridge to the Open Hearth Furnaces on the south side of the Monongahela River. Survey number: HAER... More

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...

See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... More

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...

See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... More

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...

See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... More

Monongahela Railroad, New Geneva Bridge, Spanning Monongahela River, South of Lock & Dam No. 7, New Geneva, Fayette County, PA

Monongahela Railroad, New Geneva Bridge, Spanning Monongahela River, S...

Significance: The bridge at New Geneva is significant for its long Petit through through truss, and more importantly, for its erection by end manufacturing. At the time of its construction, it was the longest a... More

Monongahela Railroad, New Geneva Bridge, Spanning Monongahela River, South of Lock & Dam No. 7, New Geneva, Fayette County, PA

Monongahela Railroad, New Geneva Bridge, Spanning Monongahela River, S...

Significance: The bridge at New Geneva is significant for its long Petit through through truss, and more importantly, for its erection by end manufacturing. At the time of its construction, it was the longest a... More

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny County, PA

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny...

See also HAER PA-3 for additional documentation. Includes photographs & written data. Unprocessed Field note material exists for this structure: FN-180 Survey number: HABS PA-614 Building/structure dates: 189... More

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny County, PA

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny...

See also HAER PA-3 for additional documentation. Includes photographs & written data. Unprocessed Field note material exists for this structure: FN-180 Survey number: HABS PA-614 Building/structure dates: 189... More

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny County, PA

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny...

See also HAER PA-3 for additional documentation. Includes photographs & written data. Unprocessed Field note material exists for this structure: FN-180 Survey number: HABS PA-614 Building/structure dates: 189... More

U.S. Steel Homestead Works, Structural Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Structural Mill, Along Monongahela River, ...

See also HAER PA-200 for additional documentation. Includes written data (pages 124 through 130). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More

U.S. Steel Homestead Works, Structural Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Structural Mill, Along Monongahela River, ...

See also HAER PA-200 for additional documentation. Includes written data (pages 124 through 130). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More

U.S. Steel Homestead Works, Structural Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Structural Mill, Along Monongahela River, ...

See also HAER PA-200 for additional documentation. Includes written data (pages 124 through 130). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More

U.S. Steel Homestead Works, Along Monongahela River, north of Eighth Avenue, Homestead, Allegheny County, PA

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 Avenue, Homestead, Allegheny County, PA

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

Old Brownsville Bridge, Spanning Monongahela River & Water Street at State Route 2067, Brownsville, Fayette County, PA

Old Brownsville Bridge, Spanning Monongahela River & Water Street at S...

Significance: The Pennsylvania truss bridge spans the Monongahela River between Brownsville and West Brownsville. The bridge is heavily constructed of built-up members and eye-bars, and is a significant landmar... More

U.S. Steel Homestead Works, Press Shop No. 1, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Press Shop No. 1, Along Monongahela River,...

See also HAER PA-200 for additional documentation. Includes written data (pages 131 through 133). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More

U.S. Steel Homestead Works, Press Shop No. 1, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Press Shop No. 1, Along Monongahela River,...

See also HAER PA-200 for additional documentation. Includes written data (pages 131 through 133). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More

Monongahela Connecting Railroad Company, Main Bridge, Spanning Monongahela River at mile post 3.1, Pittsburgh, Allegheny County, PA

Monongahela Connecting Railroad Company, Main Bridge, Spanning Mononga...

Significance: Major connection between the north and south sides of the plant which was separated by the Monongahela River. Practically all of the intra-mill transfer of materials crossed this bridge during th... More

U.S. Steel Duquesne Works, 22-Inch Bar Mill, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, 22-Inch Bar Mill, Along Monongahela River, ...

See also HAER PA-115 for additional documentation. Includes written data (pages 227 through 238). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, 22-Inch Bar Mill, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, 22-Inch Bar Mill, Along Monongahela River, ...

See also HAER PA-115 for additional documentation. Includes written data (pages 227 through 238). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Electric Furnace Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Electric Furnace Steelmaking Plant, Along M...

Picryl description: Public domain photo of a factory, warehouse, commercial or industrial building, free to use, no copyright restrictions image.

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Homestead Works, Main Roll Shop, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Main Roll Shop, Along Monongahela River, H...

Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation's most important steel mills and the Mon Valley's status as the pre-eminent iron and steel ... More

U.S. Steel National Tube Works, Central Boiler House, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Central Boiler House, Along Monongahel...

Survey number: HAER PA-380-D Building/structure dates: 1950 Initial Construction

Brady Street Bridge, Spanning Monongahela River at South Twenty-second Street, Pittsburgh, Allegheny County, PA

Brady Street Bridge, Spanning Monongahela River at South Twenty-second...

See also HABS PA-614 for additional documentation. Includes drawings. Significance: The Brady Street Bridge, contracted by the Schultz Bridge & Iron Co. of Pittsburgh, was a steel-riveted, through-highway bridg... More

Brady Street Bridge, Spanning Monongahela River at South Twenty-second Street, Pittsburgh, Allegheny County, PA

Brady Street Bridge, Spanning Monongahela River at South Twenty-second...

See also HABS PA-614 for additional documentation. Includes drawings. Significance: The Brady Street Bridge, contracted by the Schultz Bridge & Iron Co. of Pittsburgh, was a steel-riveted, through-highway bridg... More

Brady Street Bridge, Spanning Monongahela River at South Twenty-second Street, Pittsburgh, Allegheny County, PA

Brady Street Bridge, Spanning Monongahela River at South Twenty-second...

See also HABS PA-614 for additional documentation. Includes drawings. Significance: The Brady Street Bridge, contracted by the Schultz Bridge & Iron Co. of Pittsburgh, was a steel-riveted, through-highway bridg... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...

Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...

Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...

See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...

See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela R...

See also HAER PA-115 for additional documentation. Includes written data (pages 239 through 248). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela R...

See also HAER PA-115 for additional documentation. Includes written data (pages 239 through 248). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela R...

See also HAER PA-115 for additional documentation. Includes written data (pages 239 through 248). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

Modern steel plant along the Monongahela River, Pittsburg, Pennsylvania, U.S.A.

Modern steel plant along the Monongahela River, Pittsburg, Pennsylvani...

Boat at shore of river in foreground and coal cars in front of plant. H66569 U.S. Copyright Office. No. 6539.

Workers' homes with steel plant along Monongahela River in background. Clairton, Pennsylvania

Workers' homes with steel plant along Monongahela River in background....

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

U.S. Steel Homestead Works, 140" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, 140" Plate Mill, Along Monongahela River, ...

Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation's most important steel mills and the Mon Valley's status as the pre-eminent iron and steel ... More

U.S. Steel Homestead Works, 100" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

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

The Job Prickett House at the reconstructed fort at Prickett's Fort State Park, a 22-acre West Virginia state park north of Fairmont, near the confluence of Prickett's Creek and the Monongahela River

The Job Prickett House at the reconstructed fort at Prickett's Fort St...

Title, date and keywords based on information provided by the photographer. The park commemorates life on the Virginia frontier (when West Virginia was part of Virginia) during the late 18th century. Prickett's... More

Monongahela Connecting Railroad Company, Y Trestle, South side of Monongahela River between Thirty-fourth & Twenty-ninth Streets, Pittsburgh, Allegheny County, PA

Monongahela Connecting Railroad Company, Y Trestle, South side of Mono...

Significance: Permitted access between the Monongahela Connecting Railroad and former Pittsburgh and Lake Erie Railroad. P&LE was a major hauler of raw materials into and semi-finished steel products from form... More

U.S. Steel Edgar Thomson Works, 44" Slab Mill, Along Monongahela River, Braddock, Allegheny County, PA

U.S. Steel Edgar Thomson Works, 44" Slab Mill, Along Monongahela River...

Survey number: HAER PA-384-D Building/structure dates: 1915 Initial Construction

U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela...

Survey number: HAER PA-380-E Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Auxiliary Buildings, Along Monongahela...

Survey number: HAER PA-380-E Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

Point Bridge, Spanning Monongahela River at Point of Pittsburgh (No. 9 Monongahela River), Pittsburgh, Allegheny County, PA

Point Bridge, Spanning Monongahela River at Point of Pittsburgh (No. 9...

See also HAER PA-5 for additional documentation. Includes photographs & written data. Survey number: HABS PA-604 Building/structure dates: 1925-1927 Initial Construction

Monongahela Connecting Railroad Company, Hot Metal Bridge, Spanning Monongahela River at mile post 3.1, Pittsburgh, Allegheny County, PA

Monongahela Connecting Railroad Company, Hot Metal Bridge, Spanning Mo...

Significance: Formerly enabled the hauling of molten iron from J & L Blast Furnaces on the north side over the bridge to the Open Hearth Furnaces on the south side of the Monongahela River. Survey number: HAER... More

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...

See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... More

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Blast Furnace Plant, Along Monongahela Riv...

See also HAER PA-200 for additional documentation. Includes written data (pages 76 through 94). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the na... More

U.S. Steel Duquesne Works, West bank of Monongahela River along State Route 837, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, West bank of Monongahela River along State ...

Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integrated steel producing ventures in the Monongahela Valley of western Pennsylvania. Constructed af... More

U.S. Steel Duquesne Works, Primary Mill, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Primary Mill, Along Monongahela River, Duqu...

See also HAER PA-115 for additional documentation. Includes written data (pages 211 through 226). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

Pittsburgh, Pennsylvania, from Mt. Washington

Pittsburgh, Pennsylvania, from Mt. Washington

Public domain photograph - panorama, United States, free to use, no copyright restrictions image - Picryl description

Wheeling-Pittsburgh Steel Corporation, Allenport Works, Boiler House, Route 88 on West bank of Monongahela River, Allenport, Washington County, PA

Wheeling-Pittsburgh Steel Corporation, Allenport Works, Boiler House, ...

Survey number: HAER PA-411-A Public domain photograph of quarry, mining industry, miners, free to use, no copyright restrictions image - Picryl description

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny County, PA

Brady Street Bridge, Spanning Monongahela River, Pittsburgh, Allegheny...

See also HAER PA-3 for additional documentation. Includes photographs & written data. Unprocessed Field note material exists for this structure: FN-180 Survey number: HABS PA-614 Building/structure dates: 189... More

Old Brownsville Bridge, Spanning Monongahela River & Water Street at State Route 2067, Brownsville, Fayette County, PA

Old Brownsville Bridge, Spanning Monongahela River & Water Street at S...

Significance: The Pennsylvania truss bridge spans the Monongahela River between Brownsville and West Brownsville. The bridge is heavily constructed of built-up members and eye-bars, and is a significant landmar... More

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

Smithfield Street Bridge, Spanning Monongahela River on Smithfield Str...

Significance: Designed by Gustav Lindenthal, one of America's most famous bridge engineers, as a two-lane bridge. One lane was erected in 1883, and another was added in 1891. The span is Pittsburgh's most gra... More

U.S. Steel Homestead Works, 45" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, 45" Plate Mill, Along Monongahela River, H...

Picryl description: Public domain photo of a factory, warehouse, commercial or industrial building, free to use, no copyright restrictions image.

Monongahela Connecting Railroad Company, Main Bridge, Spanning Monongahela River at mile post 3.1, Pittsburgh, Allegheny County, PA

Monongahela Connecting Railroad Company, Main Bridge, Spanning Mononga...

Significance: Major connection between the north and south sides of the plant which was separated by the Monongahela River. Practically all of the intra-mill transfer of materials crossed this bridge during th... More

The Point, Pittsburgh, Pennsylvania - Public domain image. Dry plate negative.

The Point, Pittsburgh, Pennsylvania - Public domain image. Dry plate n...

Public domain photograph - panorama, United States, free to use, no copyright restrictions image - Picryl description

Liberty Bridge, Spanning Monongahela River, East Carson Street & Second Avenue at State Route 3069, Pittsburgh, Allegheny County, PA

Liberty Bridge, Spanning Monongahela River, East Carson Street & Secon...

Significance: This was the longest and most expensive bridge built in Allegheny County when it was completed in 1928. The bridge links Pittsburgh's downtown area with the Liberty Tunnels, built through Mt. Wash... More

Liberty Bridge, Spanning Monongahela River, East Carson Street & Second Avenue at State Route 3069, Pittsburgh, Allegheny County, PA

Liberty Bridge, Spanning Monongahela River, East Carson Street & Secon...

Significance: This was the longest and most expensive bridge built in Allegheny County when it was completed in 1928. The bridge links Pittsburgh's downtown area with the Liberty Tunnels, built through Mt. Wash... More

Liberty Bridge, Spanning Monongahela River, East Carson Street & Second Avenue at State Route 3069, Pittsburgh, Allegheny County, PA

Liberty Bridge, Spanning Monongahela River, East Carson Street & Secon...

Significance: This was the longest and most expensive bridge built in Allegheny County when it was completed in 1928. The bridge links Pittsburgh's downtown area with the Liberty Tunnels, built through Mt. Wash... More

U.S. Steel Duquesne Works, Auxiliary Buildings & Shops, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Auxiliary Buildings & Shops, Along Monongah...

Public domain photograph of a shop, shopping, free to use, no copyright restrictions image - Picryl description

U.S. Steel Duquesne Works, Electric Furnace Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Electric Furnace Steelmaking Plant, Along M...

Public domain photo of a monument, historic place, free to use, no copyright restrictions image - Picryl description

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monon...

See also HAER PA-115 for additional documentation. Includes written data (pages 190 through 210). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

U.S. Steel Homestead Works, Main Roll Shop, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Main Roll Shop, Along Monongahela River, H...

Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the nation's most important steel mills and the Mon Valley's status as the pre-eminent iron and steel ... More

U.S. Steel Edgar Thomson Works, Auxiliary Buildings & Shops, Along Monongahela River, Braddock, Allegheny County, PA

U.S. Steel Edgar Thomson Works, Auxiliary Buildings & Shops, Along Mon...

Survey number: HAER PA-384-E Building/structure dates: 1892 Initial Construction Building/structure dates: before 1929 Subsequent Work Building/structure dates: 1933 Subsequent Work

Buffalo Creek Bridge, U.S. Route 19, spanning Buffalo Creek near confluence of Monongahela River, Fairmont, Marion County, WV

Buffalo Creek Bridge, U.S. Route 19, spanning Buffalo Creek near confl...

Significance: The Buffalo Creek Bridge was constructed with funds appropriated under the National Industrial Recovery Act of 1933 (NIRA). Under the direction of the Public Works Administration (PWA), the NIRA ... More

Buffalo Creek Bridge, U.S. Route 19, spanning Buffalo Creek near confluence of Monongahela River, Fairmont, Marion County, WV

Buffalo Creek Bridge, U.S. Route 19, spanning Buffalo Creek near confl...

Significance: The Buffalo Creek Bridge was constructed with funds appropriated under the National Industrial Recovery Act of 1933 (NIRA). Under the direction of the Public Works Administration (PWA), the NIRA ... More

U.S. Steel Homestead Works, Harvey Shop, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, Harvey Shop, Along Monongahela River, Home...

See also HAER PA-200 for additional documentation. Includes written data (pages 142 through 144). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the ... More

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monongahela River, Rices Landing, Greene County, PA

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monon...

Significance: W. A. Young and Sons Foundry and Machine Shop is a well-preserved example of a local machine shop that served the industrial and personal needs of its surrounding area. It represents a transition... More

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monongahela River, Rices Landing, Greene County, PA

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monon...

Significance: W. A. Young and Sons Foundry and Machine Shop is a well-preserved example of a local machine shop that served the industrial and personal needs of its surrounding area. It represents a transition... More

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monongahela River, Rices Landing, Greene County, PA

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monon...

Significance: W. A. Young and Sons Foundry and Machine Shop is a well-preserved example of a local machine shop that served the industrial and personal needs of its surrounding area. It represents a transition... More

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monongahela River, Rices Landing, Greene County, PA

W. A. Young & Sons Foundry & Machine Shop, On Water Street along Monon...

Significance: W. A. Young and Sons Foundry and Machine Shop is a well-preserved example of a local machine shop that served the industrial and personal needs of its surrounding area. It represents a transition... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela Rive...

See also HAER PA-115 for additional documentation. Includes written data (pages 55 through 158). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward integ... More

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...

Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...

Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Monongahela River, McKeesport, Allegheny County, PA

U.S. Steel National Tube Works, Main Pipe Mill Building, Along Mononga...

Survey number: HAER PA-380-A Building/structure dates: 1906 Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...

See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...

See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, Homestead, Allegheny County, PA

U.S. Steel Homestead Works, 48" Plate Mill, Along Monongahela River, H...

See also HAER PA-200 for additional documentation. Includes written data (pages 99 through 101). Significance: As a group, the structures and steel-making equipment from Homestead Works represented one of the n... More

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela River, Duquesne, Allegheny County, PA

U.S. Steel Duquesne Works, Fuel & Utilities Plant, Along Monongahela R...

See also HAER PA-115 for additional documentation. Includes written data (pages 239 through 248). Significance: The construction of the Duquesne Steel Works marked an important event in the movement toward inte... More

Coal barges on Monongahela River, Pittsburgh, Pennsylvania

Coal barges on Monongahela River, Pittsburgh, Pennsylvania

Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description

McClure Avenue Outfall, McClure Avenue at Monongahela River, Dravosburg, Allegheny County, PA

McClure Avenue Outfall, McClure Avenue at Monongahela River, Dravosbur...

Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAE... More

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