Half-Mound Bridge, Spanning Delaware River on Federal Aid Secondary Ro...
Significance: The Half Mound Bridge is a rare surviving example of a Baltimore truss. Survey number: HAER KS-1 Building/structure dates: after. 1875- before. 1900 Initial Construction Building/structure date... More
Half-Mound Bridge, Spanning Delaware River on Federal Aid Secondary Ro...
Significance: The Half Mound Bridge is a rare surviving example of a Baltimore truss. Survey number: HAER KS-1 Building/structure dates: after. 1875- before. 1900 Initial Construction Building/structure date... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Public domain scan of settlement or building architecture plan, free to use, no copyright restrictions image - Picryl description
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Public domain photograph - historical image of Mississippi, United States, free to use, no copyright restrictions image - Picryl description
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Public domain scan of architectural drawing, architecture, free to use, no copyright restrictions image - Picryl description
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Public domain scan of architectural drawing, architecture, free to use, no copyright restrictions image - Picryl description
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of an architectural element, dome, cathedral, classical architecture, free to use, no copyright restrictions.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a river, water stream, lake or pond, park or forest, natural landscape, free to use, no copyright restrictions.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a vintage city plan, 18th-19th century map, free to use, no copyright restrictions.
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Public domain image of a romantic landscape with windmill, Netherlands, 16th-17th century artwork, free to use, no copyright restrictions - Picryl description
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Missouri & North Arkansas Railroad Bridge, Spanning Middle Fork Little...
Significance: The Missouri & North Arkansas Railroad Bridge at Shirley, Arkansas is an example of a Baltimore through truss, a modification of the Pratt truss development by the Pennsylvania Railroad in 1871. ... 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
Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY
Significance: The Big Four Bridge as it exists today consists of six spans, three Baltimore truss spans and three Parker through trusses. There are two approach spans on the south and one on the north end of t... More
Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY
Significance: The Big Four Bridge as it exists today consists of six spans, three Baltimore truss spans and three Parker through trusses. There are two approach spans on the south and one on the north end of t... More
Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY
Significance: The Big Four Bridge as it exists today consists of six spans, three Baltimore truss spans and three Parker through trusses. There are two approach spans on the south and one on the north end of t... More
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Public domain scan of settlement or building architecture plan, free to use, no copyright restrictions image - Picryl description
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Public domain scan of an architecture diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Bridges of the Upper Tombigbee River Valley, Columbus, Lowndes County,...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More
Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock I...
Significance: The Rock Island Bridge was constructed in 1895-1896 to connect the arsenal with Davenport, Iowa. It was the first major bridge commission of Chicago engineer Ralph Modjeski, who subsequently esta... More
Missouri & North Arkansas Railroad Bridge, Spanning Middle Fork Little...
Significance: The Missouri & North Arkansas Railroad Bridge at Shirley, Arkansas is an example of a Baltimore through truss, a modification of the Pratt truss development by the Pennsylvania Railroad in 1871. ... More
Half-Mound Bridge, Spanning Delaware River on Federal Aid Secondary Ro...
Significance: The Half Mound Bridge is a rare surviving example of a Baltimore truss. Survey number: HAER KS-1 Building/structure dates: after. 1875- before. 1900 Initial Construction Building/structure date... More
Big Four Bridge, Spanning Ohio River, Louisville, Jefferson County, KY
Significance: The Big Four Bridge as it exists today consists of six spans, three Baltimore truss spans and three Parker through trusses. There are two approach spans on the south and one on the north end of t... More
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Hobbs Bridge, Spanning Elk River on Curtis Road (A494), Coldwater, Lin...
Significance: The bridge is the only known surviving Baltimore Petit truss bridge in Tennessee. Survey number: HAER TN-23 Building/structure dates: 1891 Initial Construction
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Western Maryland Railway, Cumberland Extension, Pearre to North Branch...
Significance: The westward expansion of the Western Maryland Railway, beginning with the Cumberland Extension, was one of the last new mainlines constructed during the U.S. railroads' period of extensive growth... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More
Penobscot Bridge, Spanning Penobscot River at Route 15, Bangor, Penobs...
Significance: This bridge is the last remaining Baltimore (Petit) through-truss bridge in the state. The current structure represents three different phases of construction: Phase 1 - the center span was erec... More