There are 6,603 bridges in this category · Only showing 4,711 bridges with photos
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Plate girder

Knapps Narrows Bridge (Old) (Talbot County, Maryland)
Built 1934; Rehabilitated 1971; Replaced 1998
Pony/through plate girder bridge over Knapps Narrows on MD 33
Replaced by a new bridge and relocated

Knoebels Road Bridge (Northumberland County, Pennsylvania)
Pony/through plate girder bridge over South Branch Roaring Creek on Knoebels Road
Open to traffic

Konkapot Creek Trail Bridge (Outagamie County, Wisconsin)
Built 1911
Girder bridge over Konkapot Creek on Konkapot Creek Trail
Open to pedestrians only

Koteewi Park Bridge (Hamilton County, Indiana)
(Main design: Triple-intersection lattice through truss)
Lattice truss built in 1898 and Pratt truss built in 1904
Through truss bridge over White River on a pedestrian path
Open to pedestrians only

L&N - Duck River Bridge (Marshall County, Tennessee)
(Main design: Warren through truss with all verticals)
Built 1913;
Warren through truss bridge over Duck River in Northern Marshall County
Open to traffic

L&N - Kentucky Lake Bridge (Houston County, Tennessee)
(Main design: Parker through truss)
Built 1931, abandoned 1981. main span (vertical lift span) relocated for active use in Bridgeport Alabama
Abandoned parker through truss bridge over Kentucky Lake (Tennessee River) on an abandoned alignment of the L&N Railroad
The "Open to pedestrians only" designation is used sarcastically because the bridge, at least its eastern approaches, has been turned into a private residence.

L&N - Old Bradford Road Overpass (Jefferson County, Alabama)
Abandoned Deck plate girder bridge over Old Bradford Road on an Louisville & Nashville Railroad
Derelict/abandoned

L&N - Paoli Viaduct (Orange County, Indiana)
Built 1904, removed in 1982
Lost Deck plate girder bridge over Lost River on former Monon Railroad in Paoli
Removed

L&N - Valley River Bridge (Cherokee County, North Carolina)
(Main design: Pratt through truss)
6 panel Pratt through truss bridge over Valley River on abandoned L&N Railroad
Abandoned

L&N - Venedy Station Bridge (Clinton County, Illinois)
built around 1902. Abandoned and listed on the NRHP in 1996.
Abandoned pony/through plate girder bridge over Kaskaskia River on former Louisville and Nashville Railroad west of Venedy Station
Abandoned but intact

L&NE - Lehigh Gap Bridge (Lehigh County, Pennsylvania)
(Main design: Baltimore deck truss)
Built 1912; Abandoned 1961; Removed 1967
Lost Baltimore deck truss bridge over the Lehigh River on Lehigh & New England Railroad
Removed

La Crosse River State Trail - Bangor Gun Club Bridge (La Crosse County, Wisconsin)
Built 1913
Deck plate girder bridge over Bangor Rod & Gun Club entrance on La Crosse River State Trail (former C&NW RR)
Open to pedestrians only

La Crosse River State Trail - Creek Bridge (La Crosse County, Wisconsin)
Pony/through plate girder bridge over Presently Unknown Stream on Trail
Open to pedestrians only

LA659 Intracoastal Waterway Bridge (Terrebonne Parish, Louisiana)
Built 1958; Replaced 1996
Lost Deck plate girder vertical lift bridge over Intracostal Canal on LA 659
Replaced by a new bridge

LACM - Arroyo Seco Bridge (Los Angeles County, California)
A wooden bridge was built in 1885, replaced by this steel one in 1896, upgraded by the MTA in 1992
Bridge over Arroyo Seco on MTA Goldline (Light Rail)
Open to traffic

LACM - Avenue 19 Overpass (Los Angeles County, California)
Built in 1930, purchased by the MTA in 1990
Pony plate girder bridge over Avenue 19 on Goldline in Los Angeles
Open to traffic

LACM - Hawthorne Avenue Overpass (Los Angeles County, California)
Built 1926
Pony/through girder bridge over Hawthorne Avenue on Los Angeles County Metropolitan Transportation Authority
Open

LACM - San Fernando Road Overpass (Los Angeles County, California)
Built 1930, purchased by MTA in 1990
Pony truss bridge over San Fernando Road on Goldline in Los Angeles
Open to traffic

Lafayette Street Bridge (2nd) (Hillsborough County, Florida)
Built 1895; Replaced 1913
Lost Pony/through plate girder bridge over Hillsborough River on Lafayette Street
Replaced by a new bridge

Lafourche Bayou Bridge (Lafourche Parish, Louisiana)
Lost Deck plate girder bridge over Lafourche Bayou on State Route 1
No longer exists

Lagoon Pond Bridge (Dukes County, Massachusetts)
Built 1871; Replaced 1935
Lost bascule bridge over Lagoon Pond on Beach Road
Replaced by new bridge

LAJ - IH-710 Overpass (Los Angeles County, California)
Pony plate girder with floorbeam system over IH-710 on Los Angeles Junction Railway
Built 1955. Carries LAJ RR over IH-710

Lake Champlain Bridge (Essex County, New York)
(Main design: Network arch)
Built 2011 by the Flatiron Corp.
Network arch bridge over Lake Champlain on NY 185/VT 17
Open to traffic

Lake Minnetonka LRT Trail - MN-7 Overpass (Hennepin County, Minnesota)
Built 1934
Deck plate girder bridge over MN-7 on Lake Minnetonka LRT Trail
Open to pedestrians only

Lake Roland Railway - Stony Run Bridge (Baltimore, Maryland)
(Main design: Deck truss)
Lost Bridge over Stony Run on Lake Roland Elevated Railway
Removed but not replaced

Lake Wobegon Trail - Ashley Creek Bridge (Stearns County, Minnesota)
(Main design: Deck plate girder)
Built 1906
Deck plate girder bridge over Ashley Creek on Lake Wobegon Trail
Open to pedestrians only

Lake Wobegon Trail - Getchell Creek Bridge (Stearns County, Minnesota)
(Main design: Deck plate girder)
Various pieces assembled 1941 here
Deck plate girder bridge over Getchell Creek on Lake Wobegon Trail
Open to pedestrians only

Lake Wobegon Trail - Sauk River Bridge #1 (Stearns County, Minnesota)
Built 1912
Deck plate girder bridge over Sauk River on Lake Wobegon Trail
Open to pedestrians only

Lake Wobegon Trail - Sauk River Bridge #2 (Stearns County, Minnesota)
Built 1950 replacing similar bridge built 1902
Deck plate girder bridge over Sauk River on Lake Wobegon Trail
Open to pedestrians only

Lake Wobegon Trail - Sauk River Bridge #3 (Stearns County, Minnesota)
Built 1954
Deck plate girder bridge over Sauk River on Lake Wobegon Trail
Open to pedestrians only

Lake Wobegon Trail - Silver Creek Bridge (Todd County, Minnesota)
Built 1906
Deck plate girder bridge over Silver Creek on Lake Wobegon Trail
Open to pedestrians only

Lamb-Fish Bridge (Tallahatchie County, Mississippi)
Built 1905 by the American Bridge Co.
Vertical lift bridge over the Tallahatchie River on Levee Road
Open to traffic

Lamoille Valley Rail Trail - Smith Brook Bridge (Lamoille County, Vermont)
Abandoned 1997
Pony/through plate girder bridge over Smith Brook on Lamoille Valley Rail Trail
Open to pedestrians only

Lamoille Valley Rail-Trail - Jeffersonville Bridge (Lamoille County, Vermont)
Built for the Burlington & Lamoille Railroad
Pony/through plate girder bridge over Brewster River on Lamoille Valley Rail Trail
Open to pedestrians only

Lampasas River Bridge (Bell County, Texas)
Constructed for the State Highway Department in 1935 under a National Recovery Highway Project.
Deck plate girder bridge over Lampasas River on I-35 West Frontage
Open to traffic

Lanes Creek CSX Transportation Bridge (Anson County, North Carolina)
(Main design: Warren deck truss with all verticals)
Warren deck truss with all verticals bridge over Lanes Creek on CSXTRR
Open to traffic

Larson Road Bridge (Orange County, New York)
Built 1930 by the American Bridge Co.
Pony plate girder bridge over Shawangunk Kill on Larson Road, northeast of Bloomingburgh
Closed to all traffic

Latona Bridge (King County, Washington)
(Main design: Pennsylvania through truss)
Built 1890; Rebuilt 1909 to allow pedestrian & vehicular traffic; Replaced 1919
Lost Pennsylvania through truss bridge over Union Lake/Lake Washington Canal on Trolley Cars
No longer exists

Latona Railroad Bridge (Temporary) (King County, Washington)
Built 1902; removed 1932
Lost Pony/through plate girder bridge over Lake Washington Canal on Seattle Electric Railway
No longer exists

Laughery Creek Viaduct (Ripley County, Indiana)
Built ca. 1901 by the Baltimore and Ohio Railroad, major repair work in 1958 or 1959 with some girders replaced.
Deck plate girder bridge over Laughery Creek on CSX Railroad (former Baltimore and Ohio Railroad)
Open to traffic

Laurel Creek Bridge (Barbour County, West Virginia)
Built 1940; rehabilitated 1971
Girder bridge over Laurel Creek on County Route 12/8
Open to traffic

Laurel Fork Blue Ridge Parkway Bridge (Ashe County, North Carolina)
Built 1939
Deck plate girder bridge over Laurel Fork on Blue Ridge Parkway
Open to traffic

Lawn Road Overpass (Dauphin County, Pennsylvania)
Built 1950 by the PTC
Pony/through plate girder bridge over PA Turnpike/I-76 on Lawn Road in Lawn
Open to traffic

Layton Bridge (Fayette County, Pennsylvania)
(Main design: Pratt through truss)
Built 1892; rehabilitated 1984
Through truss bridge over Youghiogheny River on PA 4038
Open to traffic

LC - Kershaw-Camden Highway Bridge (Lancaster County, South Carolina)
Steel stringer bridge over Kershaw-Camden Highway on railroad
Open to traffic

LC&M - Mill Brook Bridge (Essex County, New York)
Built for the LC&M Railroad; Out of Service 1971; Rails removed 1987
Abandoned pony/through plate girder bridge over Mill Brook on Lake Champlain & Moriah Railroad
Derelict/abandoned

LE&E - Mahoning River Bridge #3 (Mahoning County, Ohio)
Abandoned deck plate girder bridge over Mahoning River & Division Street on Abandoned Lake Erie & Eastern Railroad
Abandoned

LE&E - Youngstown Interchange Viaduct (Mahoning County, Ohio)
(Main design: Pennsylvania through truss)
Pennsylvania through truss bridge over Mahoning River/Norfolk Southern on Abandoned rail line in Youngstown
Abandoned

Leando-Douds Bridge (Van Buren County, Iowa)
Built 1954, Replaced 2016
Haunched deck plate girder over Des Moines River on IA 98
Replaced by a new bridge

Leatherwood Creek Bridge Broadway Street (Parke County, Indiana)
Built ca. 1915
Lost Pony/through plate girder bridge over Leatherwood Creek on Broadway Street
Replaced by a new bridge

Leeville Bridge (Lafourche Parish, Louisiana)
Built 1970; Replaced by new bridge in 2010
Lost vertical lift bridge over Bayou Lafourche on LA 1 at Leeville
Replaced by new bridge

Lehigh Bridge (Lehigh County, Pennsylvania)
(Main design: Deck truss)
Built 1894; replaced 1906
Lost Deck truss bridge over Lehigh River on Lehigh Street
Replaced by a new bridge

Lehigh Canal Bridge (Lehigh County, Pennsylvania)
Pony/through plate girder bridge over Lehigh Coal and Navigation Canal on NSRR
Open to traffic

Lehigh Gap Bridge (Lehigh County, Pennsylvania)
(Main design: Deck truss)
Built 1930; rehabilitated 1984
Deck truss bridge over Lehigh River on PA 873
Open to traffic

Lehigh RIver Bridge (Carbon County, Pennsylvania)
Built 1955; rehabilitated 1980; replaced 2012
Lost Deck plate girder bridge over Lehigh River on I-476 (Pennsylvania Turnpike Northeast Extension)
Replaced by a new bridge

Lehigh River Norfolk Southern Bridge (Northampton County, Pennsylvania)
(Main design: Pratt through truss)
Two 7-panel Pratt through trusses
Open to traffic

Lehigh River Railroad Bridge (Lehigh County, Pennsylvania)
Abandoned pony/through plate girder bridge over Lehigh River on RDGRR
Derelict/abandoned

Lehigh Valley Trail - Erie Canal Bridge (Monroe County, New York)
Pony/through plate girder bridge over Erie Canal on Lehigh Valley Trail
Open to pedestrians only

Lemon Creek Railroad bridge (Greene County, Indiana)
Abandoned bridge over Lemon Creek on former Penn Central Railroad
Derelict/abandoned

Lenore Bridge (Nez Perce County, Idaho)
(Main design: Warren pony truss)
Built 1935; rehabilitated 1965
Warrren pony truss and deck plate girder bridge over Clearwater R;Lenore Branch on Lenore Road
Open to traffic

Lenox Railroad Bridge (Dyer County, Tennessee)
Pony plate girder bridge over Obion River on the Tennken Railroad, north of Lenox
Open to railroad traffic

Lewiston Canal Bridge (Androscoggin County, Maine)
Pony/through plate girder bridge over Lewiston Canal on Pedestrian Walkway
Open to pedestrians only

Lexington Avenue Bridge (Jackson County, Missouri)
Built 1900-01 by the Central Electric Railroad Co.; remodeled 1907; rehabilitated 1965 and 2006
Steel plate-girder bridge over Chestnut Trafficway on Lexington Avenue in Kansas City
Open to traffic

Liberty Street Bridge (Lawrence County, Pennsylvania)
Built 1960; rehabilitated 2010
Deck plate girder bridge over Mahoning River on Liberty Street
Open to traffic

Lick Creek HPT&D Bridge (Davidson County, North Carolina)
1912 Pony/through plate girder bridge over Lick Creek on HPT&DRR
Open to traffic

Lincoln Highway East Indian Creek Viaduct (Story County, Iowa)
Replaced 1923
Lost Deck plate girder bridge over Chicago, Rock Island & Pacific Railroad on Lincoln Highway
Replaced by a new bridge

Lincoln Highway Overpass (Marshall County, Iowa)
(Main design: Warren pony truss with all verticals)
Built 1928, Replaced 1971
Lost Warren pony truss with all verticals bridge over Railroad (CNW) on US30
Replaced by a new bridge

Lincoln Highway Wapsipinicon River Bridge (Clinton County, Iowa)
Built ca. 1930
Two-span pony plate girder bridge over Wapsipinicon River on 235th Street (former Lincoln Highway)
Closed

Lincoln Highway Wapsipinicon River Overflow Bridge (Clinton County, Iowa)
Built ca. 1930
Pony plate girder bridge over Wapsipinicon River Overflow on 235th Street (former Lincoln Highway)
Open to one-lane traffic

Lincoln Way Squaw Creek Bridge (Old) (Story County, Iowa)
Built 1921, Replaced 1957
Lost Pony/through plate girder bridge over Squaw Creek on Lincoln Way
Replaced by new bridge

Linear Trail - Wildcat Creek Bridge (Riley County, Kansas)
Pony/through plate girder bridge on Linear Trail (former Rock Island RR)
Open to pedestrians only

Lion Bridge (Warren County, Ohio)
Built 1932; rehabilitated 1993
Haunched deck plate girder bridge over Great Miami River on Second Street
Open to traffic

LIRC - Denios Creek Bridge (Bartholomew County, Indiana)
Pony/through plate girder bridge over Denios Creek on Louisville and Indiana Railroad Co
Open to traffic

LIRC - Muddy Fork Bridge (Clark County, Indiana)
Built 1929
Deck plate girder bridge over Muddy Fork on Louisville and Indiana Railroad
Open to traffic

LIRC - Muscatatuck River Bridge (Jackson County, Indiana)
Pony/through plate girder bridge over Muscatatuck River Vernon Fork on Louisville and Indiana Railroad Co
Open to traffic

LIRC - White River Bridge (Bartholomew County, Indiana)
Built 1929 for the Pennsylvania Railroad
Deck girder bridge over East Fork White River on Louisville and Indiana Railroad in Columbus
Open to traffic

LIRR - Cabin M Bridge (Queens County, New York)
Built 1910
Deck plate girder bridge over Dutch Kills Creek on Long Island RR
Open to traffic; Abandonment petitioned for.

LIRR - Douglaston Draw (Queens County, New York)
Built 1923; Replaced in the 1990s.
Deck plate girder bridge over Alley Creek on Long Island RR
Replaced by a new bridge

LIRR - English Kills Bridge (Kings County, New York)
Built 1891
Deck plate girder bridge over English Kills on Long Island RR
Open to traffic

LIRR - Manhasset Viaduct (Nassau County, New York)
(Main design: Steel stringer)
Built 1897
Steel stringer bridge over Shore Road, Manhasset Creek, Bayview Ave on Long Island Railroad
Open to traffic

LIRR - Queens Boulevard Overpass (Queens County, New York)
Built 1915
Pony/through plate girder bridge over Queens Boulevard on Long Island Railroad
Open to traffic

LIRR - Rockaway Avenue Overpass (Kings County, New York)
Built 1906 by Milliken Brothers
Deck plate girder bridge over Rockaway Avenue on Long Island Railroad
Open to traffic

LIRR - Shinnecock Canal Bridge (Older) (Suffolk County, New York)
Replaced 1899
Lost Pony/through plate girder bridge over Shinnecock Canal on Rhode Island Railroad
Replaced by a new bridge

LIRR - Smithtown Trestle (Suffolk County, New York)
(Main design: Steel stringer)
Built 1902
Steel stringer bridge over NY 25, Nissequogue River on Long Island Railroad
Open to traffic

Little Blue River CR 500N Bridge (Shelby County, Indiana)
Built in 1915 by the Central States Bridge Company
Pony/through plate girder bridge over Little Blue River on CR 500N
Open to traffic

Little Long Creek WSS Bridge (Stanly County, North Carolina)
Built 1910
Pony/through plate girder bridge over Little Long Ck on WSSRR
Open to traffic

Little Miami Scenic Trail - O'Bannon Creek Bridge (Clermont County, Ohio)
Pony/through plate girder bridge over O'Bannon Creek on Loveland Bike Trail
Open to pedestrians only

Little Opossum Creek Norfolk Southern Railway Bridge (Campbell County, Virginia)
Deck plate girder bridge over Litle Opossum Creek on NSRR
Open to traffic

Little River Aberdeen Carolina & Western Railway Bridge (Montgomery County, North Carolina)
Deck plate girder bridge over Little River on AC&WRR
Open to traffic

Little River Norfolk Southern Railway Bridge (Wake County, North Carolina)
Built 1906
Deck plate girder bridge over Little River on NSRR
Open to traffic

Little Rockfish Creek CSX Transportation Bridge (Cumberland County, North Carolina)
Deck plate girder bridge over Little Rockfish Creek on CSXTRR
Open to traffic

Little Schuylkill River Bridge (Schuylkill County, Pennsylvania)
Built 1926
Pony/through plate girder bridge over Little Schuylkill River on Broad Street
Open to traffic

Little Sioux River Bridge (Buena Vista County, Iowa)
Built 1940
Haunched deck plate girder bridge over Little Sioux River on Weaver Street
Open to traffic

Little Sugar Creek CSX Railroad Bridge (Mecklenburg County, North Carolina)
Deck plate girder bridge over Little Sugar Creek on SALRR/SCLRR/CSX RR
Open to traffic

Little Yadkin River Yadkin Valley Railroad Bridge (Stokes County, North Carolina)
Deck plate girder bridge over Little Yadkin River on YVRR
Open to traffic

Lock 29 Bridge (Wayne County, New York)
Built 1914; rehabilitated 1952
Pony/through plate girder bridge over Ganargua Creek on access road
Open to authorized vehicles only

Lockheed GNAL - Etowah River Bridge #2 (Dawson County, Georgia)
Demolished 1971
Lost Deck plate girder bridge over Etowah River on Lockheed GNAL RC Railroad
Removed

Lockport Company Canal Bridge (Lafourche Parish, Louisiana)
Built 1959
Vertical lift bridge on LA 1 over Company Canal in Lockport
Open to traffic

Locust Road - RR Overpass (Westchester County, New York)
Pony/through plate girder bridge over Railroad on Locust Road
Open to traffic

Locust Street Bridge (Cambria County, Pennsylvania)
Built 1928; rehabilitated 1975; removed 2011
Girder bridge over Industrial area on Pa 271, Locust St.
Replaced by a new bridge