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 Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
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
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
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, 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 Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
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
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
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
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
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, 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
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Pittsburgh & Lake Erie Railroad, Locomotive Repair Shops, River Road a...
Significance: This complex was built for the maintenance of the Pittsburgh & Lake Erie Railroad's steam and later diesel locomotives in 1903. The surviving structures reflect the industrial architectural herita... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Pittsburgh & Lake Erie Railroad, Locomotive Repair Shops, River Road a...
Significance: This complex was built for the maintenance of the Pittsburgh & Lake Erie Railroad's steam and later diesel locomotives in 1903. The surviving structures reflect the industrial architectural herita... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
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 Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
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, 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 Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Pittsburgh & Lake Erie Railroad, Locomotive Repair Shops, River Road a...
Significance: This complex was built for the maintenance of the Pittsburgh & Lake Erie Railroad's steam and later diesel locomotives in 1903. The surviving structures reflect the industrial architectural herita... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Pittsburgh & Lake Erie Railroad, Locomotive Repair Shops, River Road a...
Significance: This complex was built for the maintenance of the Pittsburgh & Lake Erie Railroad's steam and later diesel locomotives in 1903. The surviving structures reflect the industrial architectural herita... More
Pittsburgh & Lake Erie Railroad, Locomotive Repair Shops, River Road a...
Significance: This complex was built for the maintenance of the Pittsburgh & Lake Erie Railroad's steam and later diesel locomotives in 1903. The surviving structures reflect the industrial architectural herita... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Pittsburgh & Lake Erie Railroad, Ohio River Bridge, Spanning Ohio Rive...
Significance: The bridge is significant for its relatively long and heavy cantilever truss, planned shortly before the Quebec cantilever bridge collapse of 1907. Rather than select a different design, the railr... More
Pittsburgh & Lake Erie Railroad, Locomotive Repair Shops, River Road a...
Significance: This complex was built for the maintenance of the Pittsburgh & Lake Erie Railroad's steam and later diesel locomotives in 1903. The surviving structures reflect the industrial architectural herita... More
Monongahela Railway Company Shops, Water Street & Seventeenth Street, ...
Significance: The Monongahela Railway Company Shops reflect the support needs of a railroad significant in the coal, coke, and steel industries of Southwest Pennsylvania in the twentieth century, particularly i... More