Duplicate Bridges are movable bridges that
are identical in construction, either in the same city, state, region, or a different state. These bridges that are constructed
side by side twin, triple, or quadruple spans that are exactly alike, were built for railroad traffic with different train
service or the same company. The counterweights, sheaves, pulleys and drums on a duplicated vertical lift bridge are identical
with the last.
Bascule bridges and swing bridges are also duplicate structures with the same exact machinery and counterweight
and operate the same way as the first. In Cleveland, Ohio, they were two, twin Scherzer rolling lift bridges across the Cuyahoga
River. One, used by the Newburg & South Shore railroad, was demolished http://www.flickr.com/photos/94273918@N06/8665124265/and the other, a Baltimore & Ohio railroad bridge, still remains in service.http://www.flickr.com/photos/94273918@N06/8602358655/
The Columbus Roadhttp://www.flickr.com/photos/94273918@N06/8646373360/ and the Carter road vertical lift bridgeshttp://www.flickr.com/photos/94273918@N06/8646373300/ were copied when built in 1932. Three railroad lift bridges in the state of Ohio are triple duplicates. One of them has 2
tracks, the Nickel Plate Railroad bridge a double track structure with four drums on each tower, http://www.flickr.com/photos/94273918@N06/8602516595/the Wheeling & Lake Erie railroad bridge a single track with two drum pulleys on each tower, both are in Cleveland Ohio.http://www.flickr.com/photos/94273918@N06/8602516627/ The last twin a single track is in Lorain Ohio for the Norfolk Southern railroad.
In Chicago, there were four duplicate railroad vertical lift bridges, but now there are only three because one of
them was demolished. Two rail lift bridges were used by The Lake Shore & Michigan Southern Railroad for the New York Central
railroad, and two by the Pittsburgh Fort Wayne & Chicago railroad for the Pennsylvania railroad crossing the Calumet River.http://www.flickr.com/photos/94273918@N06/8604001638/
In Elizabethport, New Jersey, four quadruple duplicated railroad lift bridges used by the Central of New Jersey railroad
crossing the Newark bay were demolished. http://www.flickr.com/photos/94273918@N06/8961925396/Other lift bridges like the dock lift bridges used by the Amtrak railroad in Newark New Jersey crossing the Passaic River.http://www.flickr.com/photos/94273918@N06/8720334635/ Crossing the Sanitary or Drainage canal are quadruple railroad Scherzer type rolling lift bridges crossing side by side,
which are inoperable. Two bridges are operated by The Chicago Terminal Transfer and the Chicago Junction railroad, two other
bridges used by the Pittsburgh Cincinnati and Chicago & St Louis railroad 8 track which in the fixed positions. http://www.flickr.com/photos/94273918@N06/9042746671/
There are three duplicated Strauss heel trunnion bascule bridges, one of them remains and two others were replaced.
The first heel trunnion bridge was built in 1910 for the New York New Haven & Hartford railroad and replaced with a lift
bridge in 1935 in Buzzards Bay Massachusetts crossing the Cape Cod canal,http://www.flickr.com/photos/94273918@N06/8590035570/ the second duplicate heel trunnion type was built in 1911 for the Peoria Pekin & Union railroad crossing the Illinois
river at Peoria Illinois was also replaced by a lift bridge. http://www.flickr.com/photos/94273918@N06/8588935667/The remaining duplicate heel trunnion bascule bridge built in 1911 for the former New York Central Line now used by the Norfolk
Southern railroad crossing the Ashtabula river at Ashtabula Harbor Ohio and remains in service, http://www.flickr.com/photos/94273918@N06/8588935733/all 3 are double track 159 foot and 4 inches with drive machinery mounted on the bascule span with the operating struts pinned
fixed to the bridge tower or rear panel.
The Baltimore & Ohio railroad and the Pacific Electric railroad Strauss
Heel trunnion bascule bridges are duplicated at its resemblance the Baltimore & Ohio railroad bridge is 235 foot long
with 2 tracks in Chicago Illinois south side crossing the Calumet river removed in 1988,http://www.flickr.com/photos/94273918@N06/8588935777/ but the Pacific Electric railroad bridge is 187 foot long and has 2 tracks with the cable wires on the bascule span for the
rapid transit built in 1912 crossing the West Basin connecting Long Beach Harbor in San Pedro to Los Angeles California and
was removed in1955http://www.flickr.com/photos/94273918@N06/8589811476/.
The San Pedro Los Angeles & Salt Lake railroad Scherzer rolling lift bridge crossing the San Gabriel river in
Long Beach California http://www.flickr.com/photos/94273918@N06/8986912795/is Identical of the Seddon Island bridge in Tampa Florida crossing the Garrison channel use by the CSX railroadhttp://www.flickr.com/photos/94273918@N06/8699318120/, which in 1982 this bridge was demolished.
In New Orleans Louisiana are 3 Identical Strauss heel trunnion bascule
bridges crossing the Industrial canal are 117 foot with 2 roadways on the the outside with 2 tracks, Florida Avenue, Almonaster
Avenue, and Seabrook bridges. The Florida Avenue Strauss bascule bridge was replaced with a vertical lift bridge,http://www.flickr.com/photos/94273918@N06/8625641200/ the Almonaster Avenue bridge will be or was replaced with a lift bridge http://www.flickr.com/photos/94273918@N06/8589598873/but the Seabrook bridge remains and only carries rail traffic and the roadways were removed due to hurricane Katrinahttp://www.flickr.com/photos/94273918@N06/8620268030/. The Seabrook (Ted Hickey) bridge is a double leafed bascule bridge with vehical traffic. In the same state Louisiana southern
part are numerous of identical vertical lift bridges crossing the Bayous such as the state route 344 lift bridge crossing
the Teche bayou at Loreauville,http://www.flickr.com/photos/94273918@N06/9730292513/ Breaux Bridge, http://www.flickr.com/photos/94273918@N06/8725570765/Bourg, http://www.flickr.com/photos/94273918@N06/8751295410/and Petite Calillon bayou lift bridge in Terrebonne Parish are the prime examples of the lift bridges in the southern state
of Louisiana and many more.
In the upstate New York are 15 operating short lift deck vertical lift bridges crossing
the Erie canal that are in operation in western New York. The Adams Street http://www.flickr.com/photos/94273918@N06/9730416977/and Exchange street bridgeshttp://www.flickr.com/photos/94273918@N06/9730417091/ are located in Lockport, Ingersoll Street, http://www.flickr.com/photos/94273918@N06/8701371609/Main Street bridges http://www.flickr.com/photos/94273918@N06/9730485137/in Albion. Park Avenue,http://www.flickr.com/photos/94273918@N06/8702529952/ Fayette Street bridges in Brockport.http://www.flickr.com/photos/94273918@N06/8625604442/ Main street lift bridge in Middleport,http://www.flickr.com/photos/94273918@N06/8702529932/ Holley road lift bridge in Holley,http://www.flickr.com/photos/94273918@N06/8701408439/ Eagle Harbor road bridge in Eagle Harbor, http://www.flickr.com/photos/94273918@N06/8702529834/Washington street bridge in Adams Basin, http://www.flickr.com/photos/94273918@N06/8702529816/Gasport road bridge at Gasporthttp://www.flickr.com/photos/94273918@N06/8702529788/ Knowlesville bridge near Knowlesville,http://www.flickr.com/photos/94273918@N06/8625604384/ Hulberton road bridge in Hulberton,http://www.flickr.com/photos/94273918@N06/8625604476/ Prospect street lift bridge between Buffalo and Rochester at Medina,http://www.flickr.com/photos/94273918@N06/9730585943/ and the Union street lift bridge in Spencerport.http://www.flickr.com/photos/94273918@N06/8702529890/ All are Identical structures designed by Squire Whipple that does not have towers on both ends but decks with wheels to lift
the span and are used for highway traffic.
Another duplicate bridge is the Paducah
& Louisville railroad Strauss heel trunnion bascule bridge
crossing the Green river in Rockport Kentuckyhttp://www.flickr.com/photos/94273918@N06/8588711895/ is identical of the Burlington & Northern Santa Fe railroad bridge crossing the Duwamish river
near Seattle Washington http://www.flickr.com/photos/94273918@N06/8594685989/with the drive machinery mounted on the bridge tower (rear panel).
Two railroad bascule drawbridges crossing the Jupiter
River in Jupiter Florida and the exact same bridge in Stuart Florida crossing the St Lucie canal both are used by the Florida
East Coast railroad the similar bridge is located at Fort Lauderdale crossing the New river. Three look alike unusual bascule
bridges are in the state of California. All three are used
by the Burlington Northern Santa Fe railroad.
Stockton railroad bridge crossing the San Joaquin river, Middle River
railroad bridge in Middle River, and Orwood railroad bridge crossing the Old river (San Joaquin river Delta) at Orwood. These
bridges were constructed in1928 by the American Bridge Company. The fourth railroad
bridge of the duplicated type is in Manitowoc Wisconsin crossing the Manitowoc River.
Also in California there are
six identical Strauss double leaf heel trunnion bascule bridges one formerly in Rio Vista, another in Freeport, the third
in Paintersville, fourth in Walnut Grove 5th in Isleton, and the last duplicate in Grand Island all crossing the Sacramento
In Massachusetts there are 3 identical Strauss bascule bridges of the Overhead Counterweight type used by
Boston & Maine railroad one crosses the Saugus River at Lynn, other in Saugus and last crossing the Manchester harbor
at Manchester. Both Saugus and Manchester railroad bridges are now owned and used by the Massachusetts Bay Transportation
Authority.In Boston crossing the Fort Point channel has 6 track 3 Scherzer rolling lift bridges used by the New York New Haven
& Hartford railroad.
At Eddystone Pennsylvania
crossing the Darby creek are 2 twin railroad Strauss Overhead Counterweight bascule bridges one is abandoned for the Philadelphia Baltimore & Washington railroad, the other used by
Conrail railroad is still in use both are double track 63 foot.
In the State of Montana 2 railroad lift bridges are
identical. The Snowden lift bridge in Snowden, crossing the Missouri river and
the Fairview lift bridge crossing the Yellow Stone River in Fairview cross between North Dakota. The swing bridges for railroad traffic also have a twin in construction.
The Winona bridge in Minnesota,
Burlington bridge in Iowa, Dubque railroad bridge in Iowa crossing between Illinois, and the Alton swing railroad bridge in
Illinois all crosses the Mississippi river. The Leavensworth railroad bridge in Kansas crosses the Missouri river, the Winona
railroad bridge was used by the Burlington Northern Santa Fe railroad and was removed. Burlington
railroad swing bridge used by the Burlington Northern Santa Fe railroad is the twin of the Winona, Dubque, Alton, and
Leavensworth railroad bridges. Dubque railroad bridge is used by Canadian National railroad, Leavensworth railroad bridge
crossing the Missouri river was owned and used by Chicago & Northwestern railroad and finally The Alton railroad bridge
crossing the Mississippi river used by the Burlington Northern railroad. Those rail bridges were designed by George S Morison
who also designs fixed bridges. Crossing the Passaic river at Newark New Jersey has 2 identical highway swing bridges, Clay
and Jackson street bridges the 3rd swing bridge (bridge street) resembles the two.
Canada Duplicate Movable bridges
Canada has, mostly in Ontario, numerous vertical lift bridges and rolling lift bridges crossing the Welland
canal. In Welland Ontario, there ares a few identical lift spans which carry vehicles and some railroad bridges. The Kings
Highway lift bridge in Rural (Allanburg) and No#11 bridge both has the same tower and span structures along with counterweights.
Thorold also has a lift bridge of the twin sister of Allanburg,
Main and Clarence street
street bridges of Port Colborne, Glendale Avenue bridge
of St Catherines, Main street
bridge in Port Robinson, a railroad lift bridge in Welland
along with the Forks Road highway bridge but the towers
and counterweight were removed. Wabash and Lincoln
lift bridges in Dain City.
Rolling lift bridges at the Main Street Lock 8 bridge in Port Colborne and Lake Shore road bridge in St Catherines and Port
Weller bridge in Port Weller. Two more rolling lift and Strauss bascule bridges in Quebec, the Lafluer bridge crossing the
Lachine in Montreal and Promenade Du Pont Levent bridge crossing the St Lawerance river in St. Catherines are rolling lift
bridges.The Chambly canal in St. Johns and Rue Dalhousie bridge in Quebec City are similar Strauss bascule bridges.The 2 lift
bridges are also the exact same the Pont St. Louis bridge in De Gonzague and Route 201 Valleyfield bridge in Valleyfield both
crossing the Beauharnois canal .The timber swing bridges are copied in construction crossing the Rideau Canal in Ontario,Jones
Falls bridge in Kingston, Bass Point, Kilmarncock, and Upper Nicholson bridges located at Ottawa.
contributed by Douglas Butler.