Pennsylvania Railroad, Brilliant Cut-Off, South Wye, Linden Avenue at ...
Significance: This structure is significant for its association with the Pennsylvania Railroad's Brilliant Cut-Off, a bypass through residential neighborhoods around downtown Pittsburgh. The elevated south wye ... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Pennsylvania Railroad, Delaware River Bridge, Spanning Delaware River,...
Significance: The crossing is a critical link in the railroad route from Philadelphia to New York, and has hosted a series of bridges dating back to 1806. The current bridge is one of the Pennsylvania Railroad'... More
Philadelphia & Reading Railroad, Flat Rock Tunnel, Beneath Flat Rock H...
Significance: It is one of the earliest railroad tunnels built in America. The Philadelphia & Reading Railroad made significant contributions to America's transportation history and the history of the anthracit... More
Philadelphia & Reading Railroad, Flat Rock Tunnel, Beneath Flat Rock H...
Significance: It is one of the earliest railroad tunnels built in America. The Philadelphia & Reading Railroad made significant contributions to America's transportation history and the history of the anthracit... More
Pennsylvania Railroad, Mount Union Bridge, Spanning Juniata River, nor...
Significance: The bridge is significant as an example of the Pennsylvania Railroad's prolific stone arch bridge construction during the early 20th century. In addition, it elegantly breaks classical aesthetic r... More
Pennsylvania Railroad, Mount Union Bridge, Spanning Juniata River, nor...
Significance: The bridge is significant as an example of the Pennsylvania Railroad's prolific stone arch bridge construction during the early 20th century. In addition, it elegantly breaks classical aesthetic r... More
Pennsylvania Railroad, Mount Union Bridge, Spanning Juniata River, nor...
Significance: The bridge is significant as an example of the Pennsylvania Railroad's prolific stone arch bridge construction during the early 20th century. In addition, it elegantly breaks classical aesthetic r... More
Pennsylvania Railroad, Mount Union Bridge, Spanning Juniata River, nor...
Significance: The bridge is significant as an example of the Pennsylvania Railroad's prolific stone arch bridge construction during the early 20th century. In addition, it elegantly breaks classical aesthetic r... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Pennsylvania Railroad, 52nd Street Bridge, North Fifty-second Street a...
Significance: The bridge's main span, a pin-connected Parker through truss, is an exceptionally long example of its type. Its length surpasses the practical limit of 300', beyond which a subdivided Pennsylvania... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Conrail Port Perry Bridge, Spanning Monongahela River, Port Perry, All...
Part of the Monongahela River Recording Project, which included HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; HAER PA-299, Monongahela Lock and Dam No. 7; and HAER PA-304, Lower Monongahela Rive... More
Philadelphia, Baltimore & Washington Railroad, Bridge No. 3, Spanning ...
Significance: This arch span over Island Road is significant for its architectural detail, a whimsical interpretation of classical proportions in reinforced concrete. Its most remarkable features are balustrade... More
Philadelphia, Baltimore & Washington Railroad, Bridge No. 3, Spanning ...
Significance: This arch span over Island Road is significant for its architectural detail, a whimsical interpretation of classical proportions in reinforced concrete. Its most remarkable features are balustrade... More
Philadelphia, Baltimore & Washington Railroad, Bridge No. 3, Spanning ...
Significance: This arch span over Island Road is significant for its architectural detail, a whimsical interpretation of classical proportions in reinforced concrete. Its most remarkable features are balustrade... More
Philadelphia, Baltimore & Washington Railroad, Bridge No. 3, Spanning ...
Significance: This arch span over Island Road is significant for its architectural detail, a whimsical interpretation of classical proportions in reinforced concrete. Its most remarkable features are balustrade... More
Philadelphia, Baltimore & Washington Railroad, Bridge No. 3, Spanning ...
Significance: This arch span over Island Road is significant for its architectural detail, a whimsical interpretation of classical proportions in reinforced concrete. Its most remarkable features are balustrade... More
Philadelphia, Baltimore & Washington Railroad, Bridge No. 3, Spanning ...
Significance: This arch span over Island Road is significant for its architectural detail, a whimsical interpretation of classical proportions in reinforced concrete. Its most remarkable features are balustrade... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, Manayunk Bridge, Spanning Schuylkill Expressway...
Significance: The bridge's nine open-spandrel reinforced concrete arches follow an unusual reverse curvature, which earns it the nickname "S-bridge." Towering over the town of Manayunk and the Schuylkill Expres... More
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Pennsylvania Railroad, 25th Street Elevated, Above South Twenty-fifth ...
Significance: This elevated urban freight railroad is unusual for its great length and alignment directly over a city street. Survey number: HAER PA-549 Building/structure dates: 1926-1928 Initial Construction
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More
Easton & Northern Railroad, Lehigh River Bridge, Spanning Lehigh River...
Significance: This structures is significant for its highly complex geometry, with skew trusses carrying trucks on a reverse curve. It possesses a remarkable degree of integrity for a 19th century steel truss b... More