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Chicago River Bascule Bridge, Canal Street, Spanning South Branch Chicago River at Canal Street, Chicago, Cook County, IL

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 Teche, New Iberia, Iberia Parish, LA

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 Teche, New Iberia, Iberia Parish, LA

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 Teche, New Iberia, Iberia Parish, LA

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 Teche, New Iberia, Iberia Parish, LA

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

Chicago River Bascule Bridge, Monroe Street, Spanning South Branch of Chicago River at Monroe Street, Chicago, Cook County, IL

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 Chicago River at Monroe Street, Chicago, Cook County, IL

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 Chicago River at Monroe Street, Chicago, Cook County, IL

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 Chicago River at Monroe Street, Chicago, Cook County, IL

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 Chicago River at Monroe Street, Chicago, Cook County, IL

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 Chicago River at Monroe Street, Chicago, Cook County, IL

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 Chicago River at Monroe Street, Chicago, Cook County, IL

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 Congress Street, Boston, Suffolk County, MA

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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 County, MI

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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, north of Sixteenth Street, Chicago, Cook County, IL

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

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chicago River at Kinzie Street, Chicago, Cook County, IL

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chi...

Significance: This single-leaf bascule bridge represents the transition between the early Chicago-type bascule bridge, first employed in the West Cortland Street Bridge (see HAER No. IL-138), and subsequent imp... more

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chicago River at Kinzie Street, Chicago, Cook County, IL

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chi...

Significance: This single-leaf bascule bridge represents the transition between the early Chicago-type bascule bridge, first employed in the West Cortland Street Bridge (see HAER No. IL-138), and subsequent imp... more

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chicago River at Kinzie Street, Chicago, Cook County, IL

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chi...

Significance: This single-leaf bascule bridge represents the transition between the early Chicago-type bascule bridge, first employed in the West Cortland Street Bridge (see HAER No. IL-138), and subsequent imp... more

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chicago River at Kinzie Street, Chicago, Cook County, IL

Chicago River Bascule Bridge, Kinzie Street, Spanning North Branch Chi...

Significance: This single-leaf bascule bridge represents the transition between the early Chicago-type bascule bridge, first employed in the West Cortland Street Bridge (see HAER No. IL-138), and subsequent imp... more

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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

Mystic River Bridge, Spanning Mystic River at U.S. Route 1, Groton, New London County, CT

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