There are 10,482 bridges in this category · Only showing 6,731 bridges with photos
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Owned by railroad

UP - Kootenai River Bridge (Boundary County, Idaho)
Built by Union Pacific in the later 1980's to replace a former wooden bridge which collapsed while this bridge was being built.
Deck plate girder bridge over Kootenai River on Union Pacific Railroad
Open to traffic

UP - Kowald Road Overpass (Columbia County, Wisconsin)
Built 1910
Concrete arch bridge over Kowald Road on UPRR
Open to traffic

UP - Krotz Springs Bridge (Pointe Coupee Parish, Louisiana)
Through truss swing bridge over Atchafalaya River on Union Pacific Railroad
Open to traffic

UP - L Street Bridge (Webster County, Iowa)
Built 1964
Steel stringer bridge over L Street on Union Pacific Railroad
Open to traffic

UP - L'Anguille River Bridge (Lee County, Arkansas)
Built 1909
Through truss bridge over L'Anguille River on Union Pacific
Open to traffic

UP - La Grange Bridge (Fayette County, Texas)
Built 1906
Parker through truss bridge over Colorado River on Railroad
Open to traffic

UP - Labarge Road Bridge (St. Croix County, Wisconsin)
Built 1898
Through Girder Bridge over Labarge Road on Union Pacific Railroad
Open to traffic

UP - Lake Amistad Bridge (Val Verde County, Texas)
Warren through truss bridge over Lake Amistad (reservoir) on trackage of Union Pacific Railroad
Open to traffic

UP - Lake Houston Bridge (Harris County, Texas)
Deck plate girder bridge over Lake Houston on Railroad
Open to traffic

UP - Lake Oswego Bridge (Clackamas County, Oregon)
The bridge was built in 1907 by the Southern Pacific Railroad, in response to the desires of Portland city planners for an eastside railway bypass to keep rail traffic out of downtown Portland.
Parker through truss bridge over Willamette River on Union Pacific Railroad in Lake Oswego
Open to traffic

UP - Lake Street Bridge (Nobles County, Minnesota)
Built 1920
Deck Girder bridge over Lake Street on Union Pacific Railroad
Open to traffic

UP - Lakehead Bridge (Shasta County, California)
Built 1942
Warren deck truss with all verticals bridge over Sacramento River (Shasta Lake) on Union Pacific Railroad
Open to traffic

UP - Lakeview Drive Bridge (Marquette County, Wisconsin)
Built 1911
Deck plate girder bridge over Lakeview Drive on Union Pacific Railroad
Open to traffic

UP - Lamine Mouth Bridge (Cooper County, Missouri)
Two-span through truss railroad bridge over Lamine River just south of its confluence with the Missouri River
Open to railroad traffic

UP - Lamine River Bridge (Cooper County, Missouri)
Built 1938
Two-span pony plate girder railroad bridge over Lamine River, parallel with Route A
Open to railroad traffic

UP - Landa Street Overpass (Comal County, Texas)
Built 1928
Slab bridge over Landa St. (S.H. 46 Business) on Union Pacific RR in New Braunfels
Open to traffic

UP - Lathrop Terrace Bridge (Winnebago County, Illinois)
Built 1940
Steel stringer bridge over Lathrop Terrace on UPRR (Former C&NW) in S. Beloit
Open

UP - Laurel Avenue Bridge (Lake County, Illinois)
Deck plate girder bridge over Laurel Avenue on Union Pacific Railroad
Open to traffic

UP - Lavaca River Bridge (Jackson County, Texas)
Pony/through plate girder bridge over Lavaca River on Railroad
Open to traffic

UP - Lawrence Avenue Bridge #2 (Cook County, Illinois)
Built 1899
Pony/through plate girder bridge over Lawrence Avenue on Union Pacific Railroad
Open to traffic

UP - Le Sueur Creek Bridge (Le Sueur County, Minnesota)
Built 1899 as a Four Span Bridge, 2 Spans Removed and Rebuilt 19XX
Warren pony truss bridge over Le Sueur Creek on Union Pacific Railroad
Open to traffic

UP - League City Drainage Ditch Culvert (Galveston County, Texas)
Concrete culvert bridge over Drainage Ditch on Union Pacific Railroad/Galveston Houston & Henderson
Open to traffic

UP - Lee Creek Bridge (Crawford County, Arkansas)
Built 1907
Warren through truss bridge over Lee Creek on Union Pacific Railroad in (adjacent) Van Buren
Open to traffic

UP - Leland Avenue Bridge (Cook County, Illinois)
Built 1899
Pony/through plate girder bridge over Leland Avenue on Union Pacific Railroad
Open to traffic

UP - Lesperance Trestle (St. Louis, Missouri)
Built 1952 by the American Bridge Co. of New York
Deck plate girder bridge main span over I-55 and steel stringer/deck plate girder bridges over several city streets on the Union Pacific Railroad at the southern edge of Downtown St. Louis
Open to railroad traffic

UP - Levis Creek Bridge (Jackson County, Wisconsin)
Built 1902, Widened 1912
Deck plate girder bridge over Levis Creek on Union Pacific Railroad
Open to traffic

UP - Lick Creek Bridge (Sangamon County, Illinois)
Deck plate girder bridge over Lick Creek (Lake Springfield) on Railroad (UP)
Open to traffic

UP - Lincoln Highway Overpass (Story County, Iowa)
Built 1918 (according to stamp on abutment, plate says 1917)
Bridge over E-41 (The Lincoln Highway) on Union Pacific Double Mainline (Formerly Chicago & North Western Railway)
Open to traffic

UP - Lincoln Highway Overpass (State Center) (Marshall County, Iowa)
Built 1934
Deck plate girder bridge over Lincoln Highway on Union Pacific Railroad
Open to traffic

UP - Lincoln Street Bridge (Cook County, Illinois)
Built 1908
Deck plate girder bridge over Lincoln Street on Union Pacific Railroad
Open to traffic

UP - Lindsey Creek Bridge (Kinney County, Texas)
Through truss bridge over Lindsey Creek on railroad
Open

UP - Linn Creek Branch Bridge (Marshall County, Iowa)
Bridge over Branch of Linn Creek on Union Pacific Railroad
Open to traffic

UP - Linn Creek Bridge #1 (Marshall County, Iowa)
Pony/through plate girder bridge over Linn Creek on Union Pacific Railroad
Open to traffic

UP - Linn Creek Bridge #2 (Marshall County, Iowa)
Built 1899
Pony/through plate girder bridge over Linn Creek on Union Pacific Railroad
Open to traffic

UP - Linn Creek Bridge (N) (Marshall County, Iowa)
Deck girder bridge over Linn Creek on Railroad
Open to traffic

UP - Linn Creek Bridge (S) (Marshall County, Iowa)
Girder bridge over Linn Creek on Railroad
Open to traffic

UP - Linn Creek Trbutary Crossing (Marshall County, Iowa)
Pony/through plate girder bridge over Linn Creek Trbutary on Union Pacific Railroad
Open to traffic

UP - Lisbon Street Overpass (Marion County, Iowa)
Deck plate girder bridge over Lisbon Street on Union Pacific Railroad
Open to traffic

UP - Little Beaver Creek Bridge (Greene County, Iowa)
Built 1901
Deck plate girder bridge over Little Beaver Creek on Union Pacific Railroad
Open to traffic

UP - Little Calumet River Bridge (Cook County, Illinois)
Warren through truss bridge over Little Calumet River on Chicago & Western Indiana/Union Pacific RR's
Open

UP - Little Missouri River Bridge (Clark County, Arkansas)
Pony/through girder bridge over Little Missouri River on Union Pacific Railroad
Open to traffic

UP - Little Papillion Creek Bridge (Douglas County, Nebraska)
Built 1905
Deck plate girder bridge over Little Papillion Creek on Union Pacific Railroad
Open to traffic

UP - Little River Birdge (Bell County, Texas)
Pratt through truss bridge over Little River on Union Pacific Railroad
Open to traffic

UP - Little River Bridge (LaSalle Parish, Louisiana)
Warren deck truss bridge over Little River on Union Pacific Railroad
Open to traffic

UP - Little Sioux River Bridge (Harrison County, Iowa)
Built 1904
Lattice through truss bridge over Little Sioux River on Union Pacific Railroad
Open to traffic

UP - Little White Breast Creek Bridge (Lucas County, Iowa)
Deck plate girder bridge over Little White Breast Creek on Union Pacific Railroad
Open to traffic

UP - Lizard Creek Bridge (Webster County, Iowa)
Deck plate girder bridge over Lizard Creek on Union Pacific
Open to traffic

UP - Lock Springs Bridge (Daviess County, Missouri)
Baltimore through truss bridge over Grand River on Union Pacific Railroad
Open to traffic

UP - Lockman Trestle (Monroe County, Iowa)
Built 1925, abandoned early 2000s
Abandoned timber stringer bridge over 147th ST/Miller Creek branch on former UP RR by the old town of Lockman.
Derelict/abandoned with rails removed

UP - Lockwood Overpass (Harris County, Texas)
Deck plate girder bridge over Lockwood on Houston Belt & Terminal Railway/Union Pacific Railroad
Open to traffic

UP - Long Branch Bridge (Ellis County, Texas)
Built 1938
Deck plate girder bridge over Long Branch on Railroad (UP)
Open to traffic

UP - Long Ravine Trestle (Placer County, California)
Deck plate girder bridge over Highway I-80 on Union Pacific Railroad and Amtrak
Open to traffic

UP - Lookout Point Reservoir Bridge (Lane County, Oregon)
Built in 1952
Polygonal Warren through truss bridge over Lookout Point Reservoir (Willamette River) on Union Pacific Railroad
Open to traffic

UP - Los Angeles River (Bell) (Los Angeles County, California)
Built ca. 1050's-Four Plate girder spans crossing Los Angeles River
Pony plate girder bridge over Los Angeles River on UP/Amtrak Railroad
Open to traffic

UP - Los Angeles River Bridge (Cudahy) (Los Angeles County, California)
Two Warren trusses and two pony plate girders
Warren through truss with all verticals bridge over Los Angeles River on UP RR
Open to traffic

UP - Los Angeles River Bridge (Long Beach) (Los Angeles County, California)
Built 1932
Steel pony plate girder over the Los Angeles River
Open to traffic

UP - Los Angeles River Bridge (South Gate) (Los Angeles County, California)
Built 1932
Warren Through truss bridge over Los Angeles River on UPRR in South Gate
Open to traffic

UP - Loup River Bridge (Platte County, Nebraska)
Built 1908
Pin connected Pratt through truss bridge over Loup River on railroad
Open to traffic

UP - Lower Cone Springs Bridge (Lincoln County, Nevada)
Warren through truss bridge over Meadow Valley Wash on Union Pacific Railroad
Open to traffic

UP - Lower Pollard Flat Bridge (Shasta County, California)
Built 1901
Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic

UP - Lucin Cutoff (Box Elder County, Utah)
Built 1958
Concrete rigid frame bridge over Great Salt Lake on Railroad
Open to traffic

UP - Mackinaw River Bridge (Tazewell County, Illinois)
Built 1913
Through truss bridge over Mackinaw River on Union Pacific Railroad
Open to traffic

UP - Mackinaw River Bridge (McLean County, Illinois)
Built 1924
Deck plate girder bridge over Mackinaw River on Union Pacific Railway (former Southern Pacific))
Open

UP - Macoupin Creek Bridge (Macoupin County, Illinois)
Deck plate girder bridge over Macoupin Creek on Union Pacific Ry
Open

UP - Macoupin Creek Overflow Bridge (Macoupin County, Illinois)
Deck plate girder bridge over Unamed Overflow on Union Pacific Ry
Open

UP - Main Street Overpass (Ste. Genevieve County, Missouri)
Built 1901
Pony plate girder and wood trestle bridge over S. Main Street and South Fork Gabouri Creek in Ste. Genevieve
Open to railroad traffic

UP - Main Street Overpass (Winnebago County, Illinois)
Built 1893, Through Girders added 1903
Pony/through plate girder bridge over Main St (IL2) on Union Pacific Railroad
Open to traffic

UP - Maple Creek Bridge (Dodge County, Nebraska)
Built 1924
Pony/through plate girder bridge over Maple Creek on Abandoned Union Pacific Railroad
Intact but closed to all traffic

UP - Market Street Overpass (McLean County, Illinois)
Built 1889, replaced 2015
Lost Girder bridge over Market Street on Union Pacific Railroad
Replaced by a new bridge

UP - Marys River Bridge (Randolph County, Illinois)
Through truss bridge over Marys River on the Union Pacific Railroad, south of Chester and just west of IL 3
Open to railroad traffic

UP - Maynes Creek Tributary Bridge (Franklin County, Iowa)
Built 1913, Rehabilitated Ca. 1983
Deck Girder Bridge over Tributary of Maynes Creek on Union Pacific Railroad
Open

UP - McCandless Cleghorn Ditch Bridge (Monona County, Iowa)
Built 1913
Pony/through plate girder bridge over McCandless Cleghorn Ditch on Union Pacific Railroad
Open to traffic

UP - Melrose Street Bridge (Cook County, Illinois)
Built 1899
Pony/through plate girder bridge over Melrose Avenue on Union Pacific Railroad
Open to traffic

UP - Melville Bridge (St. Landry Parish, Louisiana)
Built 1927-1929.
Warren through truss bridge over Atchafalaya River on Union Pacific Railroad at Melville
Open to traffic

UP - Memorial Park Bridge (Eastbound) (Harris County, Texas)
Steel stringer bridge over Memorial Drive on Railroad
Open to traffic

UP - Memorial Park Bridge (Westbound) (Harris County, Texas)
Steel stringer bridge over Memorial Drive on Railroad
Open to traffic

UP - Mengo Bridge (Butler County, Missouri)
Built 1906 by the American Bridge Co.
Two-span through truss bridge over Black River on the Union Pacific Railroad, between Poplar Bluff and Hilliard
Still in use

UP - Meremec River Bridge (Jefferson County, Missouri)
Two-span through truss bridge over the Meramec River on the Union Pacific Railroad in Arnold
Open to railroad traffic

UP - Middle Fork Vermilion River Bridge (Vermilion County, Illinois)
Built ca. 1901
Deck girder bridge over Middle Fork Vermilion River on Union Pacific Railroad west of Armstrong
Open to traffic

UP - Middle Raccoon River Bridge (Carroll County, Iowa)
Built 1902
Through Girder Bridge over Middle Raccoon River on Union Pacific Railroad
Open to traffic

UP - Middle River Bridge (Warren County, Iowa)
Built 1913
Deck plate girder bridge over Middle River on Union Pacific Railroad
Open to traffic

UP - Mill Creek Bridge (Monroe County, Wisconsin)
Built 1911
Bridge over Mill Creek on Union Pacific Railroad
Open to traffic

UP - Mill Creek Bridge (Maple Hill) (Wabaunsee County, Kansas)
Built 1923 Using Relocated Parts
Deck plate girder bridge over Mill Creek on Union Pacific Railroad
Open to traffic

UP - Mill Creek Bridge (Paxico) (Wabaunsee County, Kansas)
Built Ca. 1904 Elsewhere, Moved here 1923, Westbound Span Approach Rebuilt 1932
Warren Through truss bridge over Mill Creek on Union Pacific Railroad
Open to traffic

UP - Milwaukee Avenue Bridge (Old Irving Park) (Cook County, Illinois)
Built 1899
Pony/through plate girder bridge over Milwaukee Avenue on Union Pacific Railroad
Open to traffic

UP - Milwaukee River Bridge (Milwaukee County, Wisconsin)
Built 1928 and 1938 (There are conflicting dates on Mfg. Plaques on several spans.)
Deck truss bridge over Milwaukee River on Union Pacific Railroad
Open to traffic

UP - Minerva Creek Bridge (Hardin County, Iowa)
Bridge over Minerva Creek on Union Pacific Railroad
Open to traffic

UP - Mission Junction Bridge (Los Angeles County, California)
Built 1902;
Warren through truss bridge over Los Angeles River on Railroads (LACM, SCAX, UP)
Open to traffic

UP - MN-93 Overpass (Le Sueur County, Minnesota)
Built 1922
Steel stringer bridge over MN-93 on Union Pacific Railroad
Open to traffic

UP - Mokelumne River Bridge (San Joaquin County, California)
Built 1908
Pony plate girder swing bridge over Mokelumne River on Western Pacific RR
Open to traffic

UP - Molalla River Bridge (Clackamas County, Oregon)
Warren deck truss with all verticals bridge over Molalla River on Union Pacific Railroad
Open to traffic

UP - Montrose Avenue Bridge (Cook County, Illinois)
Built 1926
Slab bridge over Montrose Avenue on Union Pacific Railroad
Open to traffic

UP - Montrose Avenue Bridge #2 (Cook County, Illinois)
Built 1899
Pony/through plate girder bridge over Montrose Avenue on Union Pacific Railroad
Open to traffic

UP - Moreau River Bridge (Cole County, Missouri)
Built 1922
Deck truss bridge over Moreau River on Union Pacific Railroad
Open to traffic

UP - Moredock Lake Bridge (Monroe County, Illinois)
Bridge over Moredock Lake on Union Pacific Railroad
Open to traffic

UP - Mossdale Bridge East (San Joaquin County, California)
Built 1928
Warren through truss swing bridge over San Joaquin River on Union Pacific RR
Open to traffic

UP - Mound Avenue Bridge (Racine County, Wisconsin)
Built 1908
Steel stringer bridge over Mound Avenue on Union Pacific Railroad
Open to traffic

UP - Muchakinock Creek Bridge (Mahaska County, Iowa)
Built 1895
Warren through truss bridge over Machakinock Creek on Railroad (UP)
Open to traffic

UP - Muchakinock Creek Bridge (Mahaska County, Iowa)
Pony/through plate girder bridge over Muchakinock Creek on Union Pacific Railroad
Open to traffic

UP - Muchakinock Creek Bridge #2 (Mahaska County, Iowa)
Built 1901
Warren through truss bridge over Machakinock Creek on Railroad (UP)
Open to traffic