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Historic Bridges: Movable: Single Leaf Bascule

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.


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Total Bridges Found: 92

18th Street Bridge
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18th Street Over South Branch Chicago River in Chicago: Cook County, Illinois, United States
Metal Rivet-Connected Pratt Railing Height Truss, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 280 ft. Main Span: 182 ft. Roadway: 48 ft. Main Spans: 1
Built 1967 By: Overland Construction Company of Chicago, Illinois and City of Chicago
This is one of the few single leaf highway bascule bridges in Chicago, and the only example using the pony/deck truss design.
3rd Street Bridge
Lefty O'Doul Bridge
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3rd Street Over China Basin in San Francisco: San Francisco County, California, United States
Metal Rivet-Connected Pratt Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Concrete T-Beam, Fixed
Length: 295 ft. Main Span: 143 ft. Roadway: 71.5 ft. Main Spans: 1
Built 1933 By: Barrett and Hilp of San Francisco, California and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This Strauss heel-trunnion bascule bridge has an extra section of roadway cantilevered out from one side of the bridge.
4th Street Bridge
Peter R. Maloney Bridge
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4th Street Over China Basin in San Francisco: San Francisco County, California, United States
Metal Rivet-Connected Warren Pony Truss, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Concrete T-Beam, Fixed
Length: 205 ft. Main Span: 94 ft. Roadway: 40 ft. Main Spans: 1
Built 1917 By: Thomson Bridge Company of San Francisco, California and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This bridge is an early and rare example of a Strauss vertical overhead counterweight type bascule.
6th Street Railroad Bridge
Augusta Railroad Bridge
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Railroad (Norfolk Southern) Over Savannah River in Augusta: Richmond County, Georgia and Aiken County, South Carolina, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule
Main Span: 101 ft. Main Spans: 6
Built 1912 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This bridge has a variety of span types.
7th Street Bridge
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7th Street (Erie Street) Over Black River in Port Huron: St. Clair County, Michigan, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Concrete Rigid-Frame, Fixed
Length: 273 ft. Main Span: 114 ft. Roadway: 40 ft. Main Spans: 1
Built 1933 By: Wisconsin Bridge and Iron Company of Milwaukee, Wisconsin and J. A. L. Waddell
Take a tour of the inside of the only single leaf highway bascule bridge in Michigan, which was built in the 1930s.
Alamonster Avenue Bridge
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Railroad (CSX) and Former Alamonster Avenue Over Inner Harbor Navigation Canal (Industrial Canal) in New Orleans: Orleans Parish, Louisiana, United States
Metal 7 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 282 ft. Main Span: 117 ft. Main Spans: 1
Built 1920 By: Unknown and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This bridge is one of three impressive Strauss heel-trunnion bascule bridges on this canal.
Bacon Island Railroad Bridge
BNSF - Bridge No. A-1135
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Railroad (BNSF and Amtrak) Over Middle River in Rural: San Joaquin County, California, United States
Metal Through Girder, Movable: Single Leaf Bascule (Abt)
Main Spans: 1
Built 1929 By: American Bridge Company of New York, New York
One of three extremely rare examples of the unusual patented Abt bascule type in California.
X
Baltimore and Ohio Calumet River Railroad Bridge
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Railroad (Baltimore and Ohio) Over Calumet River in Chicago: Cook County, Illinois, United States
Metal Rivet-Connected Modified Warren (Subdivided) Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal Deck Girder, Fixed
Main Span: 235 ft. Main Spans: 1
Built 1913 By: Unknown and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
Only the counterweight and mechanical frame of this bridge remains after being hit by a boat in 1988.
Baltimore and Ohio Chicago Terminal Railroad Bridge
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Railroad (Baltimore and Ohio Chicago Terminal) Over South Branch Chicago River in Chicago: Cook County, Illinois, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 186 ft. Main Spans: 1
Built 1930 By: American Bridge Company of New York, New York and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This mature example of a Strauss heel-trunnion bascule bridge has been abandoned in its raised position.
Baltimore and Ohio Railroad Bridge #460
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Railroad (CSX) Over Cuyahoga River in Cleveland: Cuyahoga County, Ohio, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Length: 205 ft. Main Span: 160 ft. Main Spans: 1
Built 1906 By: American Bridge Company of New York, New York and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This bridge is among the oldest in Cleveland and remains in use.
Baltimore and Ohio Railroad Bridge #463
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Railroad (Abandoned Baltimore and Ohio) Over Cuyahoga River in Cleveland: Cuyahoga County, Ohio, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 255 ft. Main Span: 231 ft. Roadway: 22 ft. Main Spans: 1
Built 1956 By: American Bridge Company of New York, New York
This bridge has been left standing for its historic and aesthetic values, but is otherwise abandoned.
Baltimore and Ohio Railroad Bridge #464
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Railroad (Abandoned Baltimore and Ohio) Over Cuyahoga River in Cleveland: Cuyahoga County, Ohio, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Length: 334 ft. Main Span: 210 ft. Main Spans: 1
Built 1907 By: King Bridge Company of Cleveland, Ohio and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This impressive structure is one of the most significant railroad bridges in Cleveland.
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Beckett Bridge
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North Spring Boulevard (Riverside Drive) Over Minetta Branch (Whitcomb Bayou) in Tarpon Springs: Pinellas County, Florida, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Pre-Stressed Concrete Stringer (Multi-Beam), Fixed
Length: 358 ft. Main Span: 42 ft. Roadway: 20.3 ft. Main Spans: 1
Built 1924 By: Unknown
This 1924 bridge had its approaches replaced in in 1956 but the incredibly tiny single leaf bascule span from 1924 remains.
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Big Carlos Pass Bridge
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CR-865 (Bonita Beach Causeway, Estero Boulevard) Over Big Carlos Pass in Fort Myers Beach and Bonita Springs: Lee County, Florida, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Pre-Stressed Concrete Stringer (Multi-Beam), Fixed
Length: 1,685 ft. Main Span: 79 ft. Roadway: 26.2 ft. Main Spans: 1
Built 1965 By: Unknown
This is a rare example of a single leaf highway bascule bridge in Florida.
Black River Railroad Bridge
Canadian National Railroad Bridge
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Railroad (Canadian National) Over Black River in Port Huron: St. Clair County, Michigan, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Fixed
Length: 330 ft. Main Span: 150 ft. Main Spans: 1
Built 1929 By: Wisconsin Bridge and Iron Company of Milwaukee, Wisconsin
A 1929 plate girder rolling lift bascule that is still in light use.
Bridge Street Bridge
Piermont Bridge
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Bridge Street Over Sparkill Creek in Piermont: Rockland County, New York, United States
Metal 4 Panel Rivet-Connected Double-Intersection Warren Pony Truss, Movable: Single Leaf Bascule and Approach Spans: Metal 4 Panel Rivet-Connected Double-Intersection Warren Pony Truss, Fixed
Length: 46 ft. Main Span: 24 ft. Roadway: 16.7 ft. Main Spans: 1
Built 1880 By: King Bridge Company of Cleveland, Ohio
This is the oldest known surviving bascule bridge in the United States and the only known example in the country of a simple archaic draw bridge design.
Chicago and Alton Railroad Bridge
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Railroad (Metra Heritage Corridor, Amtrak, and Canadian National) Over South Fork South Branch Chicago River (Bubbly Creek) in Chicago: Cook County, Illinois, United States
Metal 5 Panel Rivet-Connected Warren (No Verticals) Through Truss, Movable: Single Leaf Bascule (Page) and Approach Spans: Metal Girder, Fixed
Length: 214 ft. Main Span: 150 ft. Roadway: 34.3 ft. Main Spans: 1
Built 1906 By: American Bridge Company of New York, New York and William M. Hughes of Chicago, Illinois
The first ever built, and today the last remaining example of a Page bascule bridge.
Chicago and Illinois Western Railway Bridge
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Railroad (Chicago and Western Indiana) Over Collateral Channel (Canal Slip) in Chicago: Cook County, Illinois, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule (Rall)
Main Spans: 1
Built 1914 By: Strobel Steel Construction Company of Chicago, Illinois and Theodor Rall
One of only a few examples of a Rall bascule bridge in the entire country, and the only one in Chicago.
Congress Street Bridge
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Congress Street Over Fort Point Channel in Boston: Suffolk County, Massachusetts, United States
Metal Rivet-Connected Warren Pony Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal Deck Girder, Movable: Double Leaf Bascule
Length: 547 ft. Main Span: 94 ft. Roadway: 40 ft. Main Spans: 2
Built 1930 By: Boston Bridge Works of Boston, Massachusetts and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
One of several historic movable bridges in this area of Boston.
D Street Bridge
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D Street Over Petaluma River in Petaluma: Sonoma County, California, United States
Metal Rivet-Connected Warren Pony Truss, Movable: Single Leaf Bascule (Fixed Trunnion)
Length: 205 ft. Main Span: 80 ft. Roadway: 32.2 ft. Main Spans: 1
Built 1933 By: Unknown and Leon Hagop Nishkian of San Francisco, California
This bascule bridge positions its operating rack on the exterior of the truss for all to see!
Darby Creek Railroad Bridges
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Railroad (Conrail, Former Pennsylvania Railroad) Over Darby Creek in Ridley Park and Essington: Delaware County, Pennsylvania, United States
Metal Through Girder, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Metal Deck Girder, Fixed
Length: 283 ft. Main Span: 50 ft. Main Spans: 1
Built 1917 By: Bethlehem Steel Company of Bethlehem, Pennsylvania and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
Two rare Strauss vertical overhead counterweight bascule bridges sit next to each other at this location.
Deering Bridge
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Railroad (Metra Union Pacific North) Over North Branch Chicago River in Chicago: Cook County, Illinois, United States
Metal 6 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 186 ft. Main Span: 145 ft. Main Spans: 1
Built 1916 By: Kelly-Atkinson Construction Company of Chicago, Illinois and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This is an impressive and extremely massive railroad truss bridge.
Dundas Bridge
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Margaret Avenue and James Street (RR-78) Over North Branch Sydenham River in Wallaceburg: Chatham-Kent Region, Ontario, Canada
Metal Through Girder, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal Through Girder, Fixed
Length: 204 ft. Main Span: 100 ft. Roadway: 50.8 ft. Main Spans: 1
Built 1961 By: Dominion Bridge Company of Montréal, Québec and Laughlin, Wyllie, and Ufnal of Toronto, Ontario
This bascule bridge looks newer than it is because its girders are of welded construction rather than riveted.
Edwin H. Land Boulevard Bridge
Cambridge Parkway Bridge
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Edwin H. Land Boulevard Northbound Over Broad Canal in Cambridge: Middlesex County, Massachusetts, United States
Metal Through Girder, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Pre-Stressed Concrete Stringer (Multi-Beam), Fixed
Length: 175 ft. Main Span: 60 ft. Roadway: 32.2 ft. Main Spans: 1
Built 1956 By: Unknown
This is the newer and less significant of two very similar Strauss overhead counterweight bascule bridges at this location.
Eight Track Bridge
Western Avenue Railroad Bridges 'Scissors Bridges'
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Railroad (Various) Over Chicago Sanitary and Ship Canal in Chicago: Cook County, Illinois, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Rivet-Connected Warren Deck Truss, Fixed
Length: 140 ft. Main Span: 140 ft. Main Spans: 1
Built 1909 By: Chicago Bridge and Iron Works of Chicago, Illinois and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
These four side-by-side single leaf bascule bridges are among the most unusual bridges in Cook County.
Ferry Street Bridge
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Ferry Street (Robert Rich Way) Over Black Rock Canal in Buffalo: Erie County, New York, United States
Metal Rivet-Connected Pratt Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 225 ft. Main Span: 165 ft. Roadway: 30 ft. Main Spans: 1
Built 1913 By: Unknown and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
A rare and unusual example of a Strauss heel-trunnion bascule bridge.
First Street Bridge
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First Street (Edwin H. Land Boulevard Southbound) Over Broad Canal in Cambridge: Middlesex County, Massachusetts, United States
Metal Through Girder, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 120 ft. Main Span: 40 ft. Roadway: 33 ft. Main Spans: 1
Built 1924 By: Boston Bridge Works of Boston, Massachusetts and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This is the older and more significant of two very similar Strauss overhead counterweight bascule bridges at this location.
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Glimmer Glass Bridge
Brielle Road Bridge
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Brielle Road Over Glimmer Glass in Manasquan: Monmouth County, New Jersey, United States
Metal Deck Girder, Movable: Single Leaf Bascule (Belidor) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 279 ft. Main Span: 34 ft. Roadway: 20 ft. Main Spans: 1
Built 1938 By: Unknown
This is the last known surviving example of a Belidor type bascule bridge in the country.
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Groveland Bridge
Bates Bridge
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MA-113 and MA-97 Over Merrimack River in Groveland: Essex County, Massachusetts, United States
Metal Through Girder, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal 8 Panel Rivet-Connected Pratt Through Truss, Fixed
Length: 790 ft. Main Span: 117 ft. Roadway: 27 ft. Main Spans: 1
Built 1914 By: Boston Bridge Works of Boston, Massachusetts and George F. Swain
This unusual bridge has large through truss approach spans that overwhelm and all but hide the plate girder main span.
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Hohman Avenue Railroad Bridge
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Railroad (Abandoned Chicago, Indianapolis, and Louisville) Over Grand Calumet River in Hammond: Lake County, Indiana, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Page) and Approach Spans: Metal Deck Girder, Fixed
Length: 255 ft. Main Span: 110 ft. Main Spans: 1
Built 1909 By: American Bridge Company of New York, New York
This is an extremely unusual bascule bridge, and an unexpected sight on the Grand Calumet River today.
Indiana Harbor Canal Baltimore and Ohio Chicago Terminal Railroad Bridge
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Railroad (Abandoned Baltimore and Ohio Chicago Terminal) Over Indiana Harbor and Ship Canal (East Chicago Canal) in East Chicago: Lake County, Indiana, United States
Metal Through Girder, Movable: Single Leaf Bascule (Strauss Trunnion)
Main Span: 90 ft. Main Spans: 1
Built 1914 By: American Bridge Company of New York, New York and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This is the only example of a standard Strauss trunnion bascule with overhead counterweight in the Chicagoland area.
Indiana Harbor Canal Elgin, Joliet, and Eastern Railroad Bridge
Bridge 728
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Railroad (Canadian National) Over Indiana Harbor and Ship Canal (East Chicago Canal) in East Chicago: Lake County, Indiana, United States
Metal 4 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Main Span: 87 ft. Main Spans: 1
Built 1908 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This rolling lift bascule bridge is a very early surviving example of its type.
Indiana Harbor Canal Elgin, Joliet, and Eastern Railroad Bridge
Bridge 631
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Railroad (Canadian National) Over Indiana Harbor Canal in East Chicago: Lake County, Indiana, United States
Metal 4 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Fixed
Main Span: 88 ft. Main Spans: 1
Built 1913 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This bridge is a small example of a Scherzer Rolling Lift bascule bridge.
Indiana Harbor Canal New York Central Railroad Bridges
Indiana Harbor Lake Shore and Michigan Southern Railway Bridges
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Railroad (Abandoned New York Central) Over Indiana Harbor and Ship Canal (East Chicago Canal) in East Chicago: Lake County, Indiana, United States
Metal 4 Panel Rivet-Connected Pratt Through Truss, Movable: Single Leaf Bascule (Rall)
Main Span: 86 ft. Roadway: 31.3 ft. Main Spans: 1
Built 1909 By: Strobel Steel Construction Company of Chicago, Illinois and Albert Lucius of New York, New York
This pair of identical bridges are exceedingly rare examples of Rall bascule bridges and are abandoned in the raised position.
Indiana Harbor Canal Norfolk Southern Railroad Bridge
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Railroad (Norfolk Southern and Amtrak) Over Indiana Harbor and Ship Canal (East Chicago Canal) in East Chicago: Lake County, Indiana, United States
Metal 4 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Main Span: 86 ft. Main Spans: 1
Built 1909 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This bridge remains in heavy use by trains and is one of a unique group of bascule bridges on this canal.
Intracoastal Waterway Drawbridge
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Railroad (Carolina Southern Railroad) Over Intracoastal Waterway in Myrtle Beach: Horry County, South Carolina, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift)
Length: 360 ft. Main Span: 107 ft. Roadway: 33 ft. Main Spans: 1
Built 1936 By: Unknown
This bridge was first designed to be able to carry a railroad track and a highway, making it a wide example of a plate girder bascule bridge.
Jackknife Bascule Bridge
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Railroad (Canadian Pacific) and Former Highway Over Kaministiquia River in Thunder Bay: Thunder Bay District, Ontario, Canada
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal ,
Length: 374 ft. Main Span: 186 ft. Roadway: 29 ft. Main Spans: 1
Built 1914 By: Alexander Charles Stewart and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
One of the most unique surviving Strauss bascule bridges in North America, this bridge originally had a highway deck over its railway deck.
Jacksonville Railroad Bridge
FEC Railroad Bridge
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Railroad (Florida East Coast) Over St. Johns River in Jacksonville: Duval County, Florida, United States
Metal 8 Panel Rivet-Connected Pratt Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal 8 Panel Rivet-Connected Pratt Through Truss, Fixed
Length: 2,456 ft. Main Span: 220 ft. Main Spans: 1
Built 1925 By: Unknown and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This is an outstanding example of a Strauss heel-trunnion bascule bridge and also includes a variety of truss and plate girder approach spans.
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Johnson Street Bridge
Blue Bridge
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Johnson Street (Pandora Avenue) Over Inner Harbour in Victoria: Capital District, British Columbia, Canada
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal Deck Girder, Fixed
Length: 376 ft. Main Span: 148 ft. Main Spans: 1
Built 1924 By: Canadian Bridge Company of Walkerville, Ontario and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
One of the most important movable bridges in Canada was demolished and replaced.
Kinzie Street Bridge
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Kinzie Street Over North Branch Chicago River in Chicago: Cook County, Illinois, United States
Metal Rivet-Connected Pratt Through Truss, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 195 ft. Main Span: 136 ft. Roadway: 36 ft. Main Spans: 1
Built 1909 By: John J. Gallery and City of Chicago
This unusual bascule bridge had three quarters of its superstructure replaced with new members.
Kinzie Street Railroad Bridge
Chicago and Northwestern Railway Bridge
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Railroad (Abandoned Union Pacific) Over North Branch Chicago River in Chicago: Cook County, Illinois, United States
Metal 7 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Metal Girder, Fixed
Length: 196 ft. Main Span: 170 ft. Main Spans: 1
Built 1907 By: Toledo-Massillon Bridge Company of Toledo, Ohio and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
A record-setting bridge when built, this bridge was a pioneer in new bascule bridge designs and technology.
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La Salle Causeway Bridge
Kingston Bridge
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Ontario Street (CR-2) Over Cataraqui River (Kingston Bay) in Kingston: Frontenac County, Ontario, Canada
Metal 8 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 212 ft. Main Span: 170 ft. Roadway: 24 ft. Main Spans: 2
Built 1917 By: Hamilton Bridge Company of Hamilton, Ontario and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This impressive bridge is a large and rare example of a Strauss heel-trunnion bascule.
Lake Monroe Railroad Bridge
Sanford Railroad Bridge
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Railroad (CSX, Amtrak, SunRail) Over St. Johns River (Lake Monroe) in Sanford: Seminole County, Florida and Volusia County, Florida, United States
Metal 4 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Fixed
Length: 560 ft. Main Span: 120 ft. Main Spans: 1
Built By: Unknown
This railroad bascule bridge continues to carry many trains and also operates frequently for boats.
Lakeshore Road Bridge
Welland Canal Bridge #1
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Lakeshore Road and Railroad (Abandoned) Over Welland Canal in Rural: Niagara Region, Ontario, Canada
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift)
Main Spans: 1
Built By: Unknown
A good example of a through plate girder bascule bridge.
Laurel Street Bridge
Fortune Street Bridge
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Laurel Street Over Hillsborough River in Tampa: Hillsborough County, Florida, United States
Metal 6 Panel Rivet-Connected Warren Pony Truss, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Concrete T-Beam, Fixed
Length: 366 ft. Main Span: 99 ft. Roadway: 39.4 ft. Main Spans: 1
Built 1926 By: U. G. I. Contracting Company of Philadelphia, Pennsylvania and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This is an exceptional example of a Strauss overhead counterweight trunnion bascule bridge.
Lawe Street Bridge
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Lawe Street Over Fox River Navigation Canal in Appleton: Outagamie County, Wisconsin, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule
Length: 77 ft. Main Span: 75 ft. Roadway: 22 ft. Main Spans: 1
Built 1954 By: McMullen and Pitz Construction Company of Manitowoc, Wisconsin and McMahon Engineering Company of Menasha, Wisconsin and M. B. Coifman of Milwaukee, Wisconsin
This is a small bascule bridge noted for its single leaf design, since most highway bascule bridges are double-leaf.
Lechmere Viaduct
East Cambridge Viaduct
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Railroad (MBTA Green Line) Over Charles River and Various Roads in Cambridge and Boston: Middlesex County, Massachusetts and Suffolk County, Massachusetts, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Concrete Closed Spandrel (Ribbed) Deck Arch, Fixed
Length: 1,700 ft. Main Span: 129 ft. Main Spans: 1
Built 1910 By: Pennsylvania Steel Company of Steelton, Pennsylvania and Holbrook, Cabot and Rollins of Boston, Massachusetts
This large bridge has a rare and early Strauss trunnion bascule span, and equally significant ribbed concrete arch approach spans.
Lewis and Clark River Bridge
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Business US-101 (Warrenton-Astoria Highway) Over Lewis and Clark River in Astoria: Clatsop County, Oregon, United States
Metal 7 Panel Rivet-Connected Pratt Deck Truss, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 870 ft. Main Span: 112 ft. Roadway: 19 ft. Main Spans: 1
Built 1924 By: Unknown and Conde Balcom McCullough (Oregon State Highway Commission)
This is a rare example of a single leaf highway bascule bridge, and it includes a long timber approach causeway.
Longboat Key Bridge
Longboat Pass Bridge
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FL-789 (Gulf of Mexico Drive) Over Longboat Pass in Longboat Key: Manatee County, Florida, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule and Approach Spans: Pre-Stressed Concrete Stringer (Multi-Beam), Fixed
Length: 2,129 ft. Main Span: 81 ft. Roadway: 24 ft. Main Spans: 1
Built 1957 By: Unknown
This bascule bridge with long approaches is noted for its riveted girders and single leaf design.
Main Street Bridge
Welland Canal Bridge #19
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Main Street (RR-3) Over Welland Canal in Port Colborne: Niagara Region, Ontario, Canada
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift)
Main Spans: 1
Built By: Unknown
One of three movable heritage bridges in Port Colborne.
Manatee River Railroad Bridge
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Railroad (CSX) Over Manatee River in Bradenton and Palmetto: Manatee County, Florida, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 3,520 ft. Main Span: 125 ft. Main Spans: 1
Built By: Unknown
This riveted through plate girder bascule also includes extremely long approaches.
Manthey Road Bridge
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Manthey Road Over San Joaquin River in Mossdale: San Joaquin County, California, United States
Metal Rivet-Connected Warren Pony Truss, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Metal Continuous 8 Panel Pin-Connected Parker Through Truss, Fixed
Length: 539 ft. Main Span: 200 ft. Roadway: 24.3 ft. Main Spans: 1
Built 1926 By: Unknown
The pin-connected through truss approach span on this bridge outshines its main bascule span.
McKellar Lift Bridge
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Island Drive and Railroad (Canadian Pacific) Over McKellar River in Thunder Bay: Thunder Bay District, Ontario, Canada
Metal 6 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 215 ft. Main Span: 125 ft. Main Spans: 1
Built 1911 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This is a very rare combined highway and railway Scherzer rolling lift bascule bridge with three truss lines.
Mystic River Bascule Bridge
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US-1 (Main Street) Over Mystic River in Mystic: New London County, Connecticut, United States
Metal Through Girder, Movable: Single Leaf Bascule (Brown) and Approach Spans: Metal Through Girder, Fixed
Length: 220 ft. Main Span: 85 ft. Roadway: 33 ft. Main Spans: 1
Built 1922 By: American Bridge Company of New York, New York and J. E. Fitzgerald Company of New London, Connecticut and Waddell and Son of Kansas City, Missouri and Thomas Ellis Brown
A beautiful centerpiece attraction for the area, this beautifully preserved bridge is one of the only Brown bascule bridges in the country.
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New London - Groton Railroad Bridge
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Railroad (Amtrak Northeast Corridor) Over Thames River in New London and Groton: New London County, Connecticut, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal 9 Panel Rivet-Connected Parker Through Truss, Fixed
Length: 1,394 ft. Main Span: 212 ft. Main Spans: 1
Built 1919 By: American Bridge Company of New York, New York and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois and Ralph Modjeski and Gustav Lindenthal
This bridge, sadly altered by loss of its main span, was the work of several nationally recognized engineers.
Norfolk Railroad Bascule Bridges
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Railroad (Norfolk Southern) Over Eastern Branch Elizabeth River in Norfolk: Norfolk Independent City, Virginia, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Through Girder, Fixed
Main Spans: 1
Built By: Unknown
These are two very large bascule spans, and one still operates.
North Station Railroad Bridge
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Railroad (MBTA) Over Charles River in Boston and Cambridge: Suffolk County, Massachusetts and Middlesex County, Massachusetts, United States
Metal Rivet-Connected Baltimore Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Length: 500 ft. Main Span: 87 ft. Main Spans: 1
Built 1931 By: Phoenix Bridge Company of Phoenixville, Pennsylvania and Keller and Harrington of Chicago, Illinois
Originally four parallel skewed bascule spans, today there are only two, but it is still a unique historic bridge.
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Old Saybrook - Old Lyme Railroad Bridge
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Railroad (Amtrak, Northeast Corridor, and Shore Line East) Over Connecticut River in Old Lyme and Old Saybrook: Middlesex County, Connecticut, United States
Metal Rivet-Connected Warren Pony Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal 14 Panel Pin-Connected Baltimore Through Truss,
Length: 1,570 ft. Main Span: 158 ft. Main Spans: 1
Built 1907 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This bridge is one of the finest and earliest surviving Scherzer rolling lift bascule bridges and is complimented by a long series of pin-connected truss spans.
Olde Oneida Street Bridge
Oneida Street Bridge
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Olde Oneida Street Over Fox River Navigation Canal in Appleton: Outagamie County, Wisconsin, United States
Metal Variable Depth Deck Girder, Movable: Single Leaf Bascule and Approach Spans: Concrete Slab, Fixed
Length: 128 ft. Main Span: 88 ft. Roadway: 36 ft. Main Spans: 1
Built 1959 By: La Crosse Dredging Corporation of Chicago, Illinois and Fenner-Brey Engineering of Manitowoc, Wisconsin and Charles W. Yoder and Associates of Milwaukee, Wisconsin
This is a small bascule bridge noted for its single leaf design, since most highway bascule bridges are double-leaf.
Ortega River Railroad Bridge
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Railroad (CSX) Over Ortega River (McGirts Creek) in Jacksonville: Duval County, Florida, United States
Metal Deck Girder, Movable: Single Leaf Bascule (Rolling Lift)
Length: 560 ft. Main Spans: 1
Built 1927 By: Unknown
This is a small plate girder rolling lift bascule span.
Paw Paw River Railroad Bridge
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Railroad (CSX) Over Paw Paw River in Benton Harbor: Berrien County, Michigan, United States
Metal Deck Girder, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal Deck Girder, Fixed
Length: 123 ft. Main Span: 71 ft. Main Spans: 1
Built 1911 By: Wisconsin Bridge and Iron Company of Milwaukee, Wisconsin
Although significantly altered and no longer able to raise for boats, this bridge is an unusual and perhaps unexpected bascule bridge.
Pelham Railroad Bridge
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Railroad (Amtrak) Over Hutchinson River (Eastchester Bay) in New York: The Bronx, New York, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Main Span: 82 ft. Main Spans: 1
Built 1908 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This early surviving example of a Scherzer rolling lift bascule was apparantly once one of three here.
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Pont de Batiscan (Batiscan Bridge)
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QC-138 (Rue Principale) Over Rivière Batiscan in Batiscan: Mauricie, Québec, Canada
Metal Through Girder, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal 14 Panel Rivet-Connected Pennsylvania Through Truss, Fixed
Length: 1,214 ft. Main Span: 60 ft. Roadway: 18 ft. Main Spans: 1
Built 1920 By: MacKinnon Steel Corporation of Sherbrooke, Québec
This bridge, which may be unique among surviving bridges in the province, contains a tiny single leaf bascule span flanked by impressive through truss approach spans.
Pont Gauron (Gauron Bridge)
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Avenue Dollard (Avenue Saint-Pierre) Over Canal de Lachine in Montréal: Montréal, Québec, United States
Metal 8 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 165 ft. Main Span: 165 ft. Main Spans: 1
Built 1913 By: Dominion Bridge Company of Montréal, Québec and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This is one of the few Strauss heel-trunnion bascule bridges surviving in Canada today.
Pont Lafleur (Lafleur Bridge)
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Avenue Dollard (Avenue Saint-Pierre) Over Canal de Lachine in Montréal: Montréal, Québec, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift)
Main Spans: 1
Built 1959 By: Dominion Bridge Company of Montréal, Québec
This bridge sits next to an older bascule bridge, and it creates a unique site where two major bascule bridge types can be compared.
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Pont Lavigueur (Lavigueur Bridge)
Pont Bickell (Bickell Bridge), Pont Stadacona (Stadacona Bridge)
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Rue de la Pointe-aux-Lièvres Over Rivière Saint-Charles in Québec City: Capitale-Nationale, Québec, Canada
Metal 6 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal 6 Panel Rivet-Connected Warren Through Truss, Fixed
Length: 195 ft. Main Span: 85 ft. Roadway: 23 ft. Main Spans: 1
Built 1916 By: Unknown and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This former bascule bridge has had all of its bascule-related machinery and structure removed, but still retains significance as a riveted through truss.
Pont Levant (Levant Bridge)
Pont de l'écluse Sainte Catherine (St. Catherine Lock Bridge)
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Promenade du Pont-Levant Over South Shore Canal (Canal de la Rive Sud) in Sainte-Catherine: Montérégie, Québec, Canada
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift)
Length: 113 ft. Main Span: 82 ft. Main Spans: 1
Built 1957 By: Hamilton Bridge Company of Hamilton, Ontario (Bridge and Tank Company of Canada)
This bridge is a rare example of an operable bascule bridge in the province.
Port Clinton Railroad Bridge
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Railroad (Norfolk Southern and Amtrak) Over Portage River in Port Clinton: Ottawa County, Ohio, United States
Metal Rivet-Connected Baltimore Through Truss, Movable: Single Leaf Bascule (Heel Trunnion) and Approach Spans: Metal Deck Girder, Fixed
Main Span: 118 ft. Main Spans: 1
Built 1915 By: Pennsylvania Steel Company of Steelton, Pennsylvania and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This unusual four track bascule bridge, the first of its kind, has plate girders that assist the truss.
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Port Huron Railroad Bridge
Pere Marquette Railroad Bridge
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Railroad (Abandoned CSX) (Former Pere Marquette) Over Black River in Port Huron: St. Clair County, Michigan, United States
Metal 8 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Abt) and Approach Spans: Metal Through Girder, Fixed
Length: 234 ft. Main Span: 173 ft. Roadway: 18 ft. Main Spans: 1
Built 1931 By: American Bridge Company of New York, New York
Unused for many years, this extremely rare example of an Abt bascule bridge is a significant Port Huron landmark.
Rainy River Railway Bridge
Pithers Point Bridge
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Railroad (Canadian National) Over Rainy River in Fort Frances and Ranier: Rainy River District, Ontario and Koochiching County, Minnesota, Canada and United States
Metal 6 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Fixed
Length: 541 ft. Main Span: 134 ft. Main Spans: 1
Built 1908 By: Ketler-Elliott Company of Chicago, Illinois and American Bridge Company of New York, New York and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This bridge is among the older surviving Scherzer rolling lift bascule bridges and is a very rare example of its type in this region.
River Rouge Conrail Bridge
River Rouge New York Central Railroad Bridge
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Railroad (Norfolk Southern) Over River Rouge in Detroit: Wayne County, Michigan, United States
Metal 7 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 185 ft. Main Span: 135 ft. Roadway: 30 ft. Main Spans: 1
Built 1920 By: Wisconsin Bridge and Iron Company of Milwaukee, Wisconsin and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This impressive 125 foot clear bascule span is difficult to photo.
River Rouge Norfolk Southern Railroad Bridge
River Rouge Wabash Railroad Bridge
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Railroad (Norfolk Southern) Over River Rouge in Detroit: Wayne County, Michigan, United States
Metal 6 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Abt)
Length: 291 ft. Main Span: 162 ft. Roadway: 30 ft. Main Spans: 1
Built 1921 By: American Bridge Company of New York, New York
The first Abt bascule bridge ever built, this bridge is also one of the few surviving examples of this unusual bascule type.
River Terminal Railroad Bridge
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Railroad (River Terminal Railroad) Over Cuyahoga River in Cleveland: Cuyahoga County, Ohio, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Length: 130 ft. Main Spans: 1
Built 1951 By: Unknown
An interesting bascule bridge located in an area of heavy industry.
Saginaw Bascule Railroad Bridge
CSX Saginaw River Bridge
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Railroad (CSX) Over Saginaw River in Saginaw: Saginaw County, Michigan, United States
Metal 8 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Abt) and Approach Spans: Metal 5 Panel Rivet-Connected Pratt Through Truss, Fixed
Length: 700 ft. Main Span: 160 ft. Roadway: 15 ft. Main Spans: 1
Built 1944 By: American Bridge Company of New York, New York
An exceedingly rare example of the unusual patented Abt type bascule bridge.
San Joaquin River Railroad Bridge
BNSF Bridge No. B-1124
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Railroad (BNSF and Amtrak) Over San Joaquin River in Rural: San Joaquin County, California, United States
Metal Through Girder, Movable: Single Leaf Bascule (Abt) and Approach Spans: Metal Through Girder, Fixed
Length: 330 ft. Main Span: 112 ft. Roadway: 19 ft. Main Spans: 1
Built 1930 By: American Bridge Company of New York, New York
One of three extremely rare examples of the unusual patented Abt bascule type in California.
Sandusky Bay Railroad Bridge
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Railroad (Norfolk Southern and Amtrak) Over Sandusky Bay in Rural: Erie County, Ohio and Ottawa County, Ohio, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 410 ft. Main Span: 65 ft. Main Spans: 1
Built 1944 By: Bethlehem Steel Company of Bethlehem, Pennsylvania and Ferro Construction Company of Chicago, Illinois
This bridge is a noteworthy Ohio example of a Scherzer type rolling lift bascule bridge.
Seabrook Railroad Bridge
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Railroad (Norfolk Southern) and Former Hayne Boulevard (Highway Deck Removed) Over Inner Harbor Navigation Canal (Industrial Canal) in New Orleans: Orleans Parish, Louisiana, United States
Metal 7 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 266 ft. Main Span: 120 ft. Main Spans: 1
Built 1923 By: Bethlehem Steel Company of Bethlehem, Pennsylvania and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This bridge is one of three impressive Strauss heel-trunnion bascule bridges on this canal.
Shark River Railroad Bridge
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Railroad (New Jersey Transit) Over Shark River in Belmar and Avon-by-the-Sea: Monmouth County, New Jersey, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Through Girder, Fixed
Length: 544 ft. Main Span: 75 ft. Main Spans: 1
Built 1937 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This is a wide, double-track example of a plate girder rolling lift bascule bridge.
Smiths Falls Bascule Bridge
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Railroad (Abandoned Canadian Northern) Over Rideau Canal in Smiths Falls: Lanark County, Ontario, Canada
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Through Girder, Fixed
Main Span: 69 ft. Main Spans: 1
Built 1913 By: Dominion Bridge Company of Montréal, Québec and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This early surviving example of a Scherzer rolling lift bascule is a National Historic Site of Canada!
St. Charles Air Line Bridge
18th Street Railroad Bridge
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Railroad (Canadian National) Over South Branch Chicago River in Chicago: Cook County, Illinois, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 220 ft. Main Span: 220 ft. Main Spans: 1
Built 1919 By: American Bridge Company of New York, New York and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This bridge was the longest bascule bridge in the world when built, was moved once, and shortened during the move.
St. Claude Avenue Bridge
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St. Claude Avenue (LA-46) Over Inner Harbor Navigation Canal (Industrial Canal) in New Orleans: Orleans Parish, Louisiana, United States
Metal 6 Panel Rivet-Connected Pratt Through Truss, Movable: Single Leaf Bascule (Heel Trunnion)
Length: 137 ft. Main Span: 137 ft. Roadway: 24 ft. Main Spans: 1
Built 1919 By: Bethlehem Steel Company of Bethlehem, Pennsylvania and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This impressive Strauss heel-trunnion bascule bridge carries vehicular traffic on three different decks.
St. George River Railroad Bridge
Thomaston Railroad Bridge
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Railroad (Maine Eastern) Over St. George River in Near Thomaston: Knox County, Maine, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal 6 Panel Rivet-Connected Warren Through Truss, Fixed
Main Spans: 1
Built 1922 By: Unknown
This multi-span bridge contains a variety of structure types.
Tampa Railroad Bridge
Hillsborough River Railroad Bridge, Hillsborough Draw
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Railroad (CSX) Over Hillsborough River in Tampa: Hillsborough County, Florida, United States
Metal 4 Panel Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Movable: Single Leaf Bascule
Length: 573 ft. Main Span: 116 ft. Main Spans: 1
Built 1915 By: Unknown and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
The only railroad bascule bridge in Tampa, this is an outstanding example of a Scherzer rolling lift bascule bridge.
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Wadsworth Street Bridge
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Wadsworth Street (Brooklyn Heights Road) Over St. George River in Thomaston: Knox County, Maine, United States
Metal 4 Panel Rivet-Connected Pratt Pony Truss, Movable: Single Leaf Bascule (Belidor) and Approach Spans: Metal 7 Panel Rivet-Connected Pratt Through Truss, Fixed
Length: 231 ft. Roadway: 20 ft. Main Spans: 1
Built 1925 By: Boston Bridge Works of Boston, Massachusetts
Although all machinery has been removed, this bridge is one of the only examples in the country of a belidor type bascule bridge.
Washington Street Bridge
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Washington Street Over Swan Creek in Toledo: Lucas County, Ohio, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Length: 109 ft. Main Span: 85 ft. Roadway: 29 ft. Main Spans: 1
Built 1920 By: Toledo Bridge and Crane Company of Toledo, Ohio and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
The trusses of this rare Scherzer rolling lift highway bascule bridge was retained as a non-functional decorations when the bridge was replaced.
Welland Canal Canadian National Railway Bridge
Welland Canal Bridge #6
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Railroad (Canadian National) Over Welland Canal in St. Catharines: Niagara Region, Ontario, Canada
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Fixed
Length: 405 ft. Main Spans: 2
Built 1923 By: Canadian Vickers Limited of Montreal, Quebec
This bridge looks like somewhat like a double leaf bascule bridge but it is actually two single leaf bascule spans.
West CA-120 To South I-5 Ramp Bridge
Mossdale Highway Bridge
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West CA-120 To South I-5 Ramp Over San Joaquin River in Mossdale: San Joaquin County, California, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Fixed Trunnion) and Approach Spans: Metal Continuous 6 Panel Rivet-Connected Warren Pony Truss, Fixed
Length: 583 ft. Main Span: 130 ft. Roadway: 27 ft. Main Spans: 1
Built 1948 By: Judson Pacific Murphy Company
This bridge is an unusual example of a fixed trunnion bascule bridge with an overhead counterweight and trunnion.
Westport Railroad Bridge
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Railroad (Amtrak Northeast Corridor and Metro North) Over Saugatuck River in Westport: Fairfield County, Connecticut, United States
Metal Deck Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal Deck Girder, Fixed
Length: 459 ft. Main Span: 98 ft. Main Spans: 1
Built 1905 By: Pennsylvania Steel Company of Steelton, Pennsylvania and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This railroad bridge contains a small plate girder bascule span that is among the oldest surviving Scherzer rolling lift bascules in the country.
Wiscasset Railroad Bridge
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Railroad (Maine Central) Over Sheepscot River in Wiscasset: Lincoln County, Maine, United States
Metal Through Girder, Movable: Single Leaf Bascule (Rolling Lift) and Approach Spans: Metal 16 Panel Rivet-Connected Pennsylvania Through Truss, Fixed
Length: 995 ft. Main Span: 77 ft. Main Spans: 1
Built 1916 By: American Bridge Company of New York, New York and Scherzer Rolling Lift Bridge Company of Chicago, Illinois (Likely Bascule Engineer)
This bridge has a rare Scherzer rolling lift bascule span, but it is the even larger through truss approach spans that draw the eye.
Woodward Island Railroad Bridge
BNSF - Bridge No. A-1137
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Railroad (BNSF and Amtrak) Over Old River in Rural: Contra Costa County, California and San Joaquin County, California, United States
Metal Through Girder, Movable: Single Leaf Bascule (Abt)
Length: 177 ft. Main Span: 93 ft. Main Spans: 1
Built 1928 By: American Bridge Company of New York, New York
One of three extremely rare examples of the unusual patented Abt bascule type in California.
Zanesville Railroad Bridge
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Railroad (Ohio Central Railroad) Over Muskingum River, Muskingum River Canal, and Linden Avenue in Zanesville: Muskingum County, Ohio, United States
Metal Through Girder, Movable: Single Leaf Bascule (Strauss Trunnion) and Approach Spans: Metal 6 Panel Rivet-Connected Warren Through Truss, Fixed
Length: 756 ft. Main Span: 85 ft. Main Spans: 1
Built 1913 By: Unknown and Strauss Bascule Bridge Company (Strauss Engineering Company) of Chicago, Illinois
This rare Strauss bascule bridge is separated from a number of through truss approach spans by a short section of land.
Zug Island Road Bridge
Bridge 141
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Zug Island Road and Railroad (Norfolk Southern and Delray Connecting) Over River Rouge in Detroit: Wayne County, Michigan, United States
Metal Rivet-Connected Warren Through Truss, Movable: Single Leaf Bascule (Rolling Lift)
Length: 175 ft. Main Span: 140 ft. Main Spans: 1
Built 1914 By: Pennsylvania Steel Company of Steelton, Pennsylvania and Scherzer Rolling Lift Bridge Company of Chicago, Illinois
This bascule bridge features a combined highway and railroad deck, and is the main vehicular access to Zug Island.

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