New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
Chicago River Bascule Bridge, Wells Street, Spanning South Branch Chic...
Significance: The development of the Chicago trunnoin bascule bridge occurred during the first three decades of the twentieth century. Despite the controversy over patent infringement Joseph E. Strauss charg... More
University Avenue Bridge, Spanning Schuylkill River at University Aven...
Significance: The bridge is significant for its association with noted Philadelphia architect Paul Phillipe Cret, who designed the bridge in collaboration with city engineers. Its exterior treatment reflects Cr... More
Morrison Bridge, Spanning Willamette River on Morrison & Alder Streets...
Picryl description: Public domain image of a tower, free to use, no copyright restrictions.
Morrison Bridge, Spanning Willamette River on Morrison & Alder Streets...
Public domain photograph - historical image of Oregon, United States, free to use, no copyright restrictions image - Picryl description
Military Street Bridge, Spanning Black River at Military Street, Port ...
Significance: The Military Street Bridge is the oldest surviving bascule highway bridge in Michigan and is an excellent example of the underneath counterweight trunnion design developed by Jospeh B. Strauss, an... More
West Division Street Bridge, Spanning North Branch of Chicago River at...
Significance: When Chicago became a major commercial and industrial center after the Civil War, the most common American drawbridge was the swing bridge, horizontally rotating on a center pier to open two navig... More
Seaford Bridge, Spanning Nanticoke River at Front Street, Seaford, Sus...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Rehoboth Avenue Bridge, State Route 1A (Rehoboth Avenue) over Lewes & ...
Significance: A notable example of a Scherzer rolling lift bascule bridge and a typical example of 1920's bridge architecture. It is the second oldest bascule bridge in Delaware, out of the eleven that are sti... More
Rehoboth Avenue Bridge, State Route 1A (Rehoboth Avenue) over Lewes & ...
Significance: A notable example of a Scherzer rolling lift bascule bridge and a typical example of 1920's bridge architecture. It is the second oldest bascule bridge in Delaware, out of the eleven that are sti... More
Palm Valley Bridge, County Road 210 spanning Intracoastal Waterway, Po...
Significance: The Palm Valley Bridge is the last bridge over the Intracoastal Waterway in Florida owned and operated by the U.S. Army Corps of Engineers. It is also a good example of an unaltered double-leaf b... More
Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...
Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More
State Bridge No. 0302150, Spanning Bass River at U.S. Route 9, New Gre...
Significance: This single-leaf, trunnion bascule bridge is a well-preserved example of a patented Strauss articulated underneath counterweight structure. It is significant for its use of chain-driven operating... More
Chicago River Bascule Bridge, West Cortland Street, Spanning North Bra...
Significance: Designated a landmark by the American Society of Civil Engineers, the Cortland Street Bridge is a double-leaf bascule span that became in the early twentieth century the standard for movable bridg... More
Morrison Bridge, Spanning Willamette River on Morrison & Alder Streets...
Public domain photograph of construction site, free to use, no copyright restrictions image - Picryl description
Philadelphia, Baltimore & Washington Railroad, Darby River Bridge, Spa...
Significance: Because Pennsylvania has few low-lying areas, the bridge is one of a limited number of movable railroad structures in the state, and even more rare as an overhead-counterweight bascule bridge. Un... More
North Avenue Bridge, Spanning North Branch of Chicago River at West No...
Significance: When Chicago became a major commercial and industrial center after the Civil War, the most common American drawbridge was the swing bridge, horizontally rotating on a center pier to open two navig... More
Rehoboth Avenue Bridge, State Route 1A (Rehoboth Avenue) over Lewes & ...
Significance: A notable example of a Scherzer rolling lift bascule bridge and a typical example of 1920's bridge architecture. It is the second oldest bascule bridge in Delaware, out of the eleven that are sti... More
Rehoboth Avenue Bridge, State Route 1A (Rehoboth Avenue) over Lewes & ...
Significance: A notable example of a Scherzer rolling lift bascule bridge and a typical example of 1920's bridge architecture. It is the second oldest bascule bridge in Delaware, out of the eleven that are sti... More
Broadway Bridge, Spanning Willamette River at Broadway Street, Portlan...
Significance: The Broadway Bridge is the first bascule span built in Portland and, at the time constructed, the longest in the United States. Its completion resulted in a dramatic shift in land values and busi... More
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Li...
Significance: The construction of South Station in 1896-98, involved the rerouting of several of the old lines from the west and south. The New York, New Haven & Hartford Railroad constructed a six-track rollin... More
Chicago River Bascule Bridge, West Cortland Street, Spanning North Bra...
Significance: Designated a landmark by the American Society of Civil Engineers, the Cortland Street Bridge is a double-leaf bascule span that became in the early twentieth century the standard for movable bridg... More
Morrison Bridge, Spanning Willamette River on Morrison & Alder Streets...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Philadelphia, Baltimore & Washington Railroad, Darby River Bridge, Spa...
Significance: Because Pennsylvania has few low-lying areas, the bridge is one of a limited number of movable railroad structures in the state, and even more rare as an overhead-counterweight bascule bridge. Un... More
Military Street Bridge, Spanning Black River at Military Street, Port ...
Significance: The Military Street Bridge is the oldest surviving bascule highway bridge in Michigan and is an excellent example of the underneath counterweight trunnion design developed by Jospeh B. Strauss, an... More
Lower Bank Road Bridge, Spanning Mullica River, Egg Harbor City, Atlan...
Significance: In 1926, the bascule bridge replaced an earlier swing bridge at the same location. The present bridge was erected by Hill Construction Company. The bascule portion of the bridge is an excellent ... More
Congress Street Bascule Bridge, Spanning Fort Point Channel at Congres...
Significance: The Congress Street Bridge, built in 1930, is a trunnion bascule bridge and the most recent of the five movable-truss bridges spanning the Fort Point Channel. It replaced a steam operated swing d... More
University Avenue Bridge, Spanning Schuylkill River at University Aven...
Significance: The bridge is significant for its association with noted Philadelphia architect Paul Phillipe Cret, who designed the bridge in collaboration with city engineers. Its exterior treatment reflects Cr... More
Arlington Memorial Bridge, Spanning Potomac River between Lincoln Memo...
Significance: As the final link in the chain of monuments which start at the Capitol building, the Arlington Memorial Bridge connects the Mall in Washington, DC with Arlington National Cemetery in Virginia. De... More
Arlington Memorial Bridge, Spanning Potomac River between Lincoln Memo...
Significance: As the final link in the chain of monuments which start at the Capitol building, the Arlington Memorial Bridge connects the Mall in Washington, DC with Arlington National Cemetery in Virginia. De... More
North Avenue Bridge, Spanning North Branch of Chicago River at West No...
Significance: When Chicago became a major commercial and industrial center after the Civil War, the most common American drawbridge was the swing bridge, horizontally rotating on a center pier to open two navig... More
Palm Valley Bridge, County Road 210 spanning Intracoastal Waterway, Po...
Significance: The Palm Valley Bridge is the last bridge over the Intracoastal Waterway in Florida owned and operated by the U.S. Army Corps of Engineers. It is also a good example of an unaltered double-leaf b... More
Bayou Teche Bridge, Carries Louisiana Highway 86 (LA 86) over Bayou Te...
Significance: This Scherzer-type, rolling-lift, bascule bridge with steel plate-girder leaves has significance as a distinctive example of the bascule type. Its significance is demonstrated by the presence of d... More
Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, Ne...
Significance: The Mystic River Bridge is significant as an example of the Brown Balance Beam Bascule, an innovative design that raised movable-bridge technology to a new level of refinement in the early 20th ce... More
106th Street Bridge, Spanning Calumet River at East 106th Street, Chic...
Survey number: HAER IL-150 Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Chicago & North Western Railway, Kinzie Street Bridge, Spanning North ...
Significance: The Kinzie Street Bridge occupies the site of Chicago's first railroad bridge (1852), and also the nation's first all-steel railroad bridge (1879). The line served Wells Street Station and indust... More
West Division Street Bridge, Spanning North Branch of Chicago River at...
Significance: When Chicago became a major commercial and industrial center after the Civil War, the most common American drawbridge was the swing bridge, horizontally rotating on a center pier to open two navig... More
Seaford Bridge, Spanning Nanticoke River at Front Street, Seaford, Sus...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Seaford Bridge, Spanning Nanticoke River at Front Street, Seaford, Sus...
Picryl description: Public domain photograph of a dock, harbor, boats, water, free to use, no copyright restrictions.
Palm Valley Bridge, County Road 210 spanning Intracoastal Waterway, Po...
Significance: The Palm Valley Bridge is the last bridge over the Intracoastal Waterway in Florida owned and operated by the U.S. Army Corps of Engineers. It is also a good example of an unaltered double-leaf b... More
Broadway Bridge, Spanning Willamette River at Broadway Street, Portlan...
Significance: The Broadway Bridge is the first bascule span built in Portland and, at the time constructed, the longest in the United States. Its completion resulted in a dramatic shift in land values and busi... More
Sault Ste. Marie International Railroad Bridge, Spanning Soo Locks at ...
Significance: The Sault Ste. Marie International Railroad Bridge has nine camelback truss spans crossing the St. Marys River with bascule and vertical lift bridge components crossing the American Locks at the S... More
Lower Bank Road Bridge, Spanning Mullica River, Egg Harbor City, Atlan...
Significance: In 1926, the bascule bridge replaced an earlier swing bridge at the same location. The present bridge was erected by Hill Construction Company. The bascule portion of the bridge is an excellent ... More