Erie Railway, New York Division, Bridge 8.04 (c.1900), Spanning Passai...
Survey number: HAER NJ-25-B Public domain photograph - city, downtown, New York, United States, free to use, no copyright restrictions image - Picryl description
Chicago River Bascule Bridge, Canal Street, Spanning South Branch Chic...
Significance: Chicago city engineers employed their standard bascule design for this bridge carrying Canal Street Bridge across the South Branch of the Chicago River. Its streamlined bridgetender's house refle... 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
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
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
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
Bascule span design - Arlington Memorial Bridge - 2013
Schematic design of the 1932 bascule span of the Arlington Memorial Bridge over the Potomac River in Washington, D.C., in the United States.
Chicago River Bascule Bridge, Columbus Avenue, Spanning Chicago River ...
Public domain image of Chicago city buildings, cityscape, free to use, no copyright restrictions image - Picryl description
Chicago River Bascule Bridge, Columbus Avenue, Spanning Chicago River ...
Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Chicago River Bascule Bridge, Columbus Avenue, Spanning Chicago River ...
Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Chicago River Bascule Bridge, Columbus Avenue, Spanning Chicago River ...
Public domain photograph - historical image of Illinois, United States, free to use, no copyright restrictions image - Picryl description
Chicago River Bascule Bridge, Columbus Avenue, Spanning Chicago River ...
Public domain photograph of stairs, steps, free to use, no copyright restrictions image - Picryl description
The New Bridge at Buccleuch Dock, Barrow in Furness, circa 1910
The New Bridge at Buccleuch Dock, Barrow in Furness, circa 1910
Moveable bridge in Bandar-e Anzali
First moveable bridge in Iran establishment in Bandar-e Pahlavi (today call it: Bandar-e Anzali).
Bezoek Indiaanse vertegenwoordiger uit Peru, Mexico en Ecuador vlnr Gr...
Visit of Native American Representatives from Peru, Mexico and Ecuador. Pic taken at Amsterdam, northern side of Walter Süskindbrug.Nederlands: Collectie / Archief : Fotocollectie Anefo Reportage / Serie : [ ... More
Hms p48 submarine - A black and white photo of a boat in the water
British U class submarine HMS P48 (1942), passing by bridge at Buccleuch Dock, Barrow in Furness
Renovation of old metal balance bridge named Scharrebiersluis. It is l...
Renovation of an old metal balance bridge named Scharrebiersluis. It is located at the beginning of the canal Nieuwe Herengracht, Amsterdam. There are many bridges in the old city which need renovation. Free p... More
A photo of the riveted iron bascule bridge near Kadijksplein, Amsterda...
A photo of the dark-green riveted iron drawbridge near Kadijksplein, Amsterdam; high resolution image by FotoDutch, June 2013. This bridge is one in a row of four bridges which needs to set open to give a ship... More
Construction drawing bridge - Drawing. Public domain image.
Svenska: Klaffbro. Punkterade linjer visar klaffarnas läge, då bron är öppen för sjöfarten. English: Bascule bridge. Dotted lines show the position of the leafs when the bridge is open for sea traffic.
1940 Friedrichsbrücke Oldershausen (Marschacht) und Gasthaus
Deutsch: Friedrichsbrücke Oldershausen & Gasthaus Public domain image of 19th-century Saxony, Germany, historical photograph, free to use, no copyright restrictions image - Picryl description
Tourist Attraction - 1940 Friedrichsbrücke Oldershausen (Marschacht)
Deutsch: Friedrichsbrücke
Strauss Bascule Bridge, vertical overhead counterweight type
Diagram of vertical overhead counterweight type, Strauss Bascule Bridge (main tunnion red cricle, counterweight in yellow)
Strauss Bascule Bridge, underneath counterweight type
Diagram of underneath counterweight type, Strauss Bascule Bridge (main tunnions red cricles, counterweights in yellow)
Strauss Bridge, direct lift type
Diagram of direct lift typ, Strauss Bascule Bridge (main tunnions red cricles, movement of truss blue circles, counterweights in yellow)
Lidingo Bridge 1925 - Public domain portrait drawing
Drawing sketch of the old bridge between Lidingö and Stockholm. Opened in 1925.
An investigation of a Strauss trunnion bascule bridge (1912) (14759852...
Identifier: investigationofs00sand (find matches) Title: An investigation of a Strauss trunnion bascule bridge Year: 1912 (1910s) Authors: Sandberg, Reuben Lawrence Subjects: Movable bridges Bridges Theses ... More
Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of ...
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
Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of ...
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
Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of ...
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
Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of ...
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
Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of ...
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
Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of ...
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
Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of ...
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
Dix Bascule Bridge, Spanning Rouge River at Dix Avenue, Detroit, Wayne...
Significance: The Dix Bascule Bridge is the newest of three double-leaf trunnion drawbridges constructed over the Rouge River in the 1920's. It is important in local history for its relation to the economic de... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More
St. Charles Air Line Bridge, Spanning South Branch of Chicago River, n...
Significance: Like all Strauss heel-trunnion bascule bridges, the St. Charles Air Line Bridge rotates vertically, lifting to clear the river it spans. This particular bridge is unique, however, in that its des... More