Double decker

"H" Street Bridge (Sacramento County, California)
built 1895 as first Double Decker Bridge in California Replaced 1912
Through truss double deck Bridge over Sacramento River on SP RR
Demolished

"I" Street Bridge (Yolo County, California)
Built 1911
Swing through truss bridge over Sacramento River, carries railroad tracks and "I" Street in West Sacramento
Open to traffic

Arsenal Bridge (Scott County, Iowa)
Built 1896, Rehabilitated 1983 & 1997
Baltimore through truss bridge over Mississippi River on 2 lanes of traffic and 2 rail lines in Davenport
Open to traffic

ASB Bridge (Jackson County, Missouri)
Opened to traffic on December 28, 1911; upper roadway deck removed 1987
Vertical-lift through truss bridge over the Missouri River on the BNSF Railway in Kansas City
Open to railroad traffic

Barre Wool Combing Company Bridge (Worcester County, Massachusetts)
Concrete through arch bridge over Ware River on Mill Roadway & Pipeline in Barre

BART/SF Muni - Market Street Subway (San Francisco County, California)
Originally built 1973 for Bay Area Rapid Transit, San Francisco Municipal Railway connection added in 1980
Tunnel on Bay Area Rapid Transit & San Francisco Municipal Railway
Open to traffic

Big Rock Bridge (Venango County, Pennsylvania)
Built 1879; Trolley trusses added 1904; Lost 1926
Lost Whipple through truss bridge over Allegheny River on River Road and Citizens Traction Company
Destroyed by collision with ice

Black Bridge (Cumberland County, Maine)
Built 1909; Approach span rebuilt 1957; rehabilitated 1987; lower deck demolished 2014
Baltimore through truss bridge over Androscoggin River on Pan Am Railways Lewiston Lower Branch in Brunswick
Unique suspended deck demolished; railroad deck remains although practically unused

Brent Spence Bridge (Hamilton County, Ohio)
Built 1963
Double-decker cantilevered through truss bridge over the Ohio River on I-71/I-75 at Cincinnati

Broadway Bridge (1905) (New York County, New York)
Built 1905; Replaced December 24th, 1960
Lost Pratt through truss swing bridge over Harlem River on Broadway (US 9) & IRT West Side Line
Replaced by a new bridge

Callowhill Street Bridge (Philadelphia County, Pennsylvania)
Built 1875; demolished 1964
Lost Whipple deck truss bridge over Schuylkill River
Replaced by a new bridge

Central Avenue Bridge (Wyandotte County, Kansas)
Built 1918; rehabilitated 1983 and 2008
Two-level deck truss bridge over Kansas River on Central Avenue in Kansas City
Open to traffic

Centre Street Bridge (Essex County, New Jersey)
Built 1911; Road deck added after the Hudson & Manhattan moved traffic onto the Dock Bridge; Removed 1979
Lost Warren through truss bridge over Passaic River on NJ 158 & Pennsylvania Railroad
Removed but not replaced

CNJ/Bel-Del/LV - Delaware River Double-Decker Bridge (Northampton County, Pennsylvania)
Built 1854; Supllemental Spans added 1866; Replaced 1876
Lost Howe through truss bridge over Delaware River on Central Railroad of New Jersey/Lehigh Valley Railway (Upper Deck) & Belvidere Delaware Railroad (Lower Deck)
Replaced by a new bridge

CTA Red/Green Lines - Dan Ryan Double Bridge (Cook County, Illinois)
Original 'L' line built 1905. Bridge built 1961 as part of construction of Dan Ryan Expressway
Steel stringer bridge over I/90-94, CTA Red Line 'L' on CTA Green Line 'L'
Open to traffic

Eads Bridge (St. Louis, Missouri)
Built 1869-1874 under the direction of engineer James Buchanan Eads; automobile deck closed 1989-2003 for rehabilitation and replacement; reopened July 4, 2003
Three-span steel arch bridge over the Mississippi River and N. Leonor K. Sullivan Blvd. in downtown St. Louis
Upper vehicular deck open to vehicular traffic on weekdays. Closed on weekends; Lower railroad deck open

Eden Park Arch & Viaduct (Hamilton County, Ohio)
Built 1874; Demolished 1949
Lost Deck arch bridge over Eden Park Drive on Trolley
Removed but not replaced

Fort Madison Bridge (Lee County, Iowa)
Built 1927
Toll double-decker through truss swing bridge over the Mississippi River on IA 2/IL 9/BNSF Railroad at Fort Madison
Open to traffic

Foxburg Bridge (Armstrong County, Pennsylvania)
Built 1921; rehabilitated 1981/1985; demolished July 24, 2008
Lost 2 level through truss bridge over Allegheny River on Route 58 and B&O RR in Foxburg
Replaced by a new bridge

Fremont Bridge (Multnomah County, Oregon)
Built 1973
Steel through arch bridge over Willamette River on I-405 in Portland
Open to traffic

George Washington Bridge (New York County, New York)
Opened to traffic October 25, 1931; lower level opened August 29, 1962
Suspension bridge over Hudson River on I-95 in New York
Open to a total of 14 lanes of traffic

Girard Point Bridge (Philadelphia County, Pennsylvania)
Built 1973
Through truss bridge over Schuylkill River, Railroad, Roads on I-95, Double Deck
Open to traffic

Glade Bridge (Old) (Warren County, Pennsylvania)
Built 1892; Railroad deck added 1908; Railroad deck removed ca, 1928; Replaced 1987
Lost Warren through truss bridge over Allegheny River on US 6 & Warren Street Railway
Replaced by a new bridge

Government Bridge (Scott County, Iowa)
Built 1872, Replaced 1895
Lost Pratt through truss bridge over Mississippi River on Railroad and Road
Replaced by a new bridge because of an icy flood storm

Gunsaulus Hall Galleries (Cook County, Illinois)
Built 1916
Through truss bridge over South Shore and South Bend Railroad on Museum Gallery
Open to museum visitors only

Harry Flood Byrd Memorial Bridge (Bedford County, Virginia)
Built 1959
Concrete tee beam/steel plate girder bridge over James River on Blue Ridge Parkway
Open to traffic

Highline Bridge (Wyandotte County, Kansas)
Built 1917; rehabilitated 2005
Two-level through truss bridge and network of approaches over Kansas River on the KCTRR in Kansas City
Open to traffic

I-5 - Lake Washington Ship Canal Bridge (King County, Washington)
Built 1962
Deck truss bridge over Lake Washington Ship Canal on I-5 in Seattle
Open to traffic

I-5 - Marquam Bridge (Multnomah County, Oregon)
Built 1966, Seismic Retrofit 1996
Cantilevered Warren deck truss bridge over Willamette River on I-5 in Portland
Open to traffic

I-5 - Pit River Bridge (Shasta County, California)
Built 1941, rehabilitated 2008
Double deck, deck truss bridge over Shasta Lake (Pit River Arm) on I-5 & Union Pacific Railroad
Open to traffic

Intercity Viaduct (Wyandotte County, Kansas)
Completed in 1907; lower level added 1930; parallel span opened in 1962
Two-level deck truss bridge over Kansas River on I-70 Eastbound in Kansas City
Open to four lanes of traffic on upper level and pedestrian traffic on lower level

Lake Shore Drive Drawbridge (Cook County, Illinois)
Built 1937
Double-deck bascule bridge over Main Branch Chicago River on Lake Shore Drive in Chicago
Open to traffic

Lake Street Bridge (Cook County, Illinois)
Built 1916
Bascule bridge over South Branch Chicago River on Lake Street and CTA Green/Pink Lines in Chicago
Open to traffic

MacArthur Bridge (St. Louis, Missouri)
Built 1907-1917 by the City of St. Louis to break the monopoly of the Terminal Railroad Association, which controlled the two other bridges at St. Louis and charged unreasonable tolls. Automobile deck closed to traffic in 1981.
Three-span through truss bridge over the Mississippi River in St. Louis, south of the Poplar Street Bridge
Open to railroad traffic only

Mahoning Avenue Double Decker Viaduct (Mahoning County, Ohio)
Built 1903
Through truss bridge over Mill Creek on CR 319
Replaced by a new bridge

Meridian Bridge (Yankton County, South Dakota)
Built 1924; rehabilitated 1953; bypassed by Discovery Bridge in 2008
Vertical-lift through truss bridge over the Missouri River on US 81 at Yankton
Open to pedestrians only

Michigan Avenue Bridge (Cook County, Illinois)
Built 1920; repaired after freak accident 1992
Bascule bridge over Main Branch Chicago River on Michigan Avenue (former US 14) in Chicago
Open to traffic

Montague City Covered Bridge 26-06-31#3x (Franklin County, Massachusetts)
Built 1870; Destroyed by Flood of 1936
Lost Covered Double decker Howe through truss bridge over Connecticut River on Railroad/Montague City Road
Destroyed by flooding

Noble Avenue Bridge (Logan County, Oklahoma)
Built 1936
Double-deck steel stringer bridge over Cottonwood Creek and Railroad on S.H. 33 in Guthrie
Replaced by a new bridge

NS - Fort Wayne Bridge (Allegheny County, Pennsylvania)
Built 1901-1904; replaced earlier 1868 lattice truss bridge; raised 1918; lower deck tracks removed c1950s
Pennsylvania through truss bridge over Allegheny River on Norfolk Southern Railroad
Open to traffic

O'Reilly Memorial Bridge (Essex County, Massachusetts)
Built 1962
Steel stringer bridge over Merrimack River on Interstate 495 (Boston Outer Beltway)
Open to traffic

Ogden Slip Lake Shore Drive Bridge (Cook County, Illinois)
Built 1937, demolished 1982 and replaced with a fixed span
Through truss bascule bridge over Ogden Slip on Lake Shore Drive US 41
Replaced by a fixed span

Old Railroad Bridge (Lauderdale County, Alabama)
Built 1893; Modified 1895, 1906, & 1962; Lift span relocated 1990
Warren through truss bridge over Tennessee River on Old Railroad Bridge Trail
Open to pedestrians

Oliver Swing Bridge (Douglas County, Wisconsin)
Built 1910
Double-decker swing bridge over St. Louis River on WI 105 and CN Railway
Open to traffic

Portage Lake Swing Bridge (Houghton County, Michigan)
Replaced in 1960
Through truss bridge over Portage River
Replaced by a new bridge

Rock Island Bridge (Washington County, Minnesota)
Built 1894; closed to traffic in 1999; swing span plus all but two remaining spans demolished in May 2010; two remaining spans converted into pedestrian pier, which included the addition of truss spans on Dakota side in Nov. 2010, reopened in 2011
Abandoned through truss swing bridge over the Mississippi River at St. Paul Park
Open to pedestrians

Roosevelt Avenue Bridge (Queens County, New York)
Built 1927
Through truss bridge over Flushing Creek on Roosevelt Avenue
Open to traffic fixed in place

San Francisco-Oakland Bay Bridge (San Francisco County, California)
Built 1936; Key System tracks removed 1958; rehabilitated 1962; partial collapse 1989; west span seismic retrofit 2013; east span replaced 2013.
Suspension bridge over San Francisco Bay on I-80 connecting San Francisco, Yerba Buena Island, and Oakland. New eastern span is a 1400 foot single anchored suspension bridge
Open to traffic

Sarah Mildred Long Bridge (New) (York County, Maine)
Built 2018
Vertical-lift bridge over Piscataqua River on US-1 Bypass
Open to traffic

Sebastian Inlet Bridge (Indian River County, Florida)
Built 1964 to replace previous bascule bridge
Unique double-deck bridge with concrete girder/stringer spans (upper level) and deck plate girder spans (lower level) over Sebastian Inlet on Florida Scenic Route A1A
Open to traffic

Second Bridge (Rock Island County, Illinois)
Built 1866; Damaged by a Tornado in 1868; Replaced 1872
Lost McCallum through truss bridge over Mississippi River on Chicago, Rock Island & Pacific Railroad & Fort Road
Replaced by a new bridge

Second Hannibal Bridge (Jackson County, Missouri)
Built 1917 to replace First Hannibal Bridge; auto deck abandoned 1956
Baltimore through truss double deck swing bridge over Missouri River on BNSF Railway in Kansas City
Open to railroad traffic

Sherman Minton Bridge (Jefferson County, Kentucky)
Built 1961; rehabilitated 1997 and 2011/12; closed on September 9, 2011 due to cracks in the main load-bearing structural element; reopened on February 17/18, 2012
Double Decker Two-span steel through arch bridge over Ohio River on I-64 between New Albany and Louisville in Louisville
Open to traffic

Slade's Ferry Bridge (Bristol County, Massachusetts)
Built 1875; Swing span struck 1932 by a tanker and replaced with a bascule; Replaced 1970
Lost double-decker truss bridge over Taunton River on Remington Avenue
Removed

Steel Bridge (1888) (Multnomah County, Oregon)
Built 1888, Replaced 1912
Lost Truss bridge over Willamette river on Oregon Railway and Navigation Co. & Road
Replaced by a new bridge

Steel Bridge (1912) (Multnomah County, Oregon)
Built 1912
Vertical-lift through truss bridge over Willamette River on Pacific Highway West & MAX Blue Line in Portland
Open to highway and light rail traffic on upper deck; bicycle/pedestrian and rail traffic on lower deck

Stockyards Bridge (Wyandotte County, Kansas)
Built in Early 1900s shows on a 1907 map. Demolished Around 1974.
Lost Camelback through truss bridge over Kansas River on Livestock/Cattle Double Decked
Removed but not replaced

Suncook Connector Bridge (Merrimack County, New Hampshire)
Built 2007
Deck truss bridge over Suncook River and Buck Street on US 3 in Suncook
Open to traffic

Susquehanna River Bridge (Harford County, Maryland)
Original bridge replaced in stages 1873-1886; Converted to road use ca 1910 by private owners; Converted to a double-decker ca. 1923 by the state of Maryland; Replaced 1940; Removed 1943
Lost Pratt through truss and swing bridge over Susquehanna River on Road
Removed but not replaced at exact site

Tobin Bridge (Suffolk County, Massachusetts)
Built 1950
Through truss bridge over Mystic River on US 1 in Boston
Open to traffic

Twelfth Street Viaduct (Jackson County, Missouri)
Built 1913-14; rehabilitated 1965 and 2006
Concrete viaduct over the railroad tracks on Twelfth Street, just west of downtown Kansas City
Open to traffic

US11 Black River Bridge (Jefferson County, New York)
Built 1921, Replaced 1993
Lost Open-spandrel arch bridge over Black River on US 11
Replaced by a new bridge

WACR - Woodsville-Wells River Bridge (Grafton County, New Hampshire)
Dual layer Baltimore truss bridge built in 1903, closed to car traffic 1917, closed to trains in 2001
Pin Connected Baltimore deck & through truss bridge over Connecticut River on Railroad (WACR)
Abandoned

Wells Street Bridge (Cook County, Illinois)
Built 1922, rehabilitated 2013
Double-leaf bascule bridge over Main Branch Chicago River on N. Wells Street and CTA 'L' in Chicago
Open

West Branch Feather River Bridge (Butte County, California)
Built 1962
Deck truss bridge over West Branch Feather River on CA 70 & Union Pacific Railroad in Concow
Open to traffic

Western Hills Viaduct (Hamilton County, Ohio)
Built 1930-32 as part of the Union Terminal Project; eastern end rebuilt 1960-63 to accomodate I-75
Double-decker concrete viaduct with two open-spandrel arch spans over Mill Creek Valley in Cincinnati
Open to two decks of traffic