There are 6,349 bridges in this category · Only showing 3,908 bridges with photos
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Built during 1900s

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 - 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 - Mill Street Overpass (Sheboygan County, Wisconsin)
Built 1907
Pony/through plate girder bridge over Wis 67/Mill Street on C&NW (abandoned) in Plymouth
Closed to all 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 - 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 - Mound Avenue Bridge (Racine County, Wisconsin)
Built 1908
Steel stringer bridge over Mound Avenue on Union Pacific Railroad
Open to traffic

UP - Mud Creek Bridge (Leavenworth County, Kansas)
Built 1906
Pony/through plate girder bridge over Mud Creek on Union Pacific Railroad
Open to traffic

UP - Mud Creek Bridge (Douglas County, Kansas)
Built 1900
Abandoned pony plate girder bridge over Mud Creek on Union Pacific railroad
Abandoned with tracks in place

UP - Mud Slough Bridge (Santa Clara County, California)
Built 1905
Deck plate girder bridge over Mud Slough on Union Pacific RR
Open to traffic

UP - Muddy Creek Bridge (Jefferson County, Kansas)
Built 1905
Through truss bridge over Muddy Creek on Union Pacific Railroad in Grantville
Open to traffic

UP - Multnomah Creek Bridge (Multnomah County, Oregon)
Built 1907
Pony/through plate girder bridge over Multnomah Creek on Union Pacific Railroad
Open to traffic

UP - N. Branch St. James Creek Bridge (Watonwan County, Minnesota)
Built Ca. 1900
Deck plate girder bridge over N. Branch St. James Creek on Union Pacific Railroad
Open to traffic

UP - North Platte River Bridge (Keith County, Nebraska)
Built 1905;
Deck plate girder bridge over North Platte River on Union Pacific Railroad


UP - North Skunk River Bridge (Poweshiek County, Iowa)
Built 1900
Warren Through Truss Bridge over North Skunk River on Union Pacific Railroad
Open to traffic

UP - Nueces River Bridge (Uvalde County, Texas)
Built 1903
Through truss bridge over Nueces River on Union Pacific Railroad
Open to traffic

UP - Ogden Stone Arch Bridge (Boone County, Iowa)
Built 1901
Stone arch bridge over East Branch Beaver Creek on Union Pacific Railroad
Open to traffic

UP - Okabena Creek Bridge (Nobles County, Minnesota)
Built 1901
Pony/through plate girder bridge over Okabena Creek on Union Pacific Railroad
Open to traffic

UP - Oskaloosa Rail Crossing (W) (Mahaska County, Iowa)
Built Ca. 1900
Through Girder Bridge over Mahaska Community Recreation Trail on Union Pacific Railroad
Open to traffic

UP - Patrick Bridge (Washoe County, Nevada)
Built 1902
Parker through truss bridge over Truckee River on Union Pacific Railroad
Open to traffic

UP - Paulina Street Bridge (Cook County, Illinois)
Built 1905
Deck plate girder bridge over Paulina Street on Union Pacific Railroad
Open to traffic

UP - Piru Creek Bridge (Ventura County, California)
Built in 1902 by the American Bridge Company.
Abandoned pratt through truss bridge over Piru Creek on Union Pacific Railroad in Piru
Abandoned

UP - Pismo Creek Bridge (San Luis Obispo County, California)
Built 1909
Warren through truss with all verticals bridge over Pismo Creek on Union Pacific Railroad (formerly SP RR)
Open to traffic

UP - Pleasant Hill Road Bridge (McHenry County, Illinois)
Built 1906
Steel stringer bridge over Pleasant Hill Road on UPRR (Former C&NW) just east if Prairie Grove
Open to traffic

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

UP - Porter Creek Bridge (Scott County, Minnesota)
Built 1901 replacing an older bridge
Pony/through plate girder bridge over Porter Creek on Union Pacific Railroad
Open to traffic

UP - Prairie Alley Bridge (Cook County, Illinois)
Built 1909
Deck plate girder bridge over Canadian Pacific Railway on Union Pacific Railroad
Open to traffic

UP - Prairie Creek Bridge #4 (Linn County, Iowa)
Built 1906
Deck plate girder bridge over Prairie Creek on Union Pacific Railroad
Open to traffic

UP - Pudding River Bridge (Clackamas County, Oregon)
Built 1906
Pratt through truss bridge over Pudding River on Union Pacific Railroad
Open to traffic

UP - Richland Creek Bridge (Navarro County, Texas)
Built 1903
Through truss bridge over Richland Creek on Railroad
Open to traffic

UP - River Park Bridge (Sheboygan County, Wisconsin)
Built 1906
Deck Truss bridge over New Jersey Avenue, Sheboygan River and River Park Drive on Union Pacific Railroad
Open to traffic

UP - Riverside Street Overpass (Rock County, Wisconsin)
Built 1907
Concrete arch bridge over Riverside Street on Union Pacific Railroad in Janesville
Open to traffic

UP - Rock Creek Bridge (Plumas County, California)
Built 1909
Warren deck truss bridge over Rock Creek on Union Pacific Railroad
Open to traffic

UP - Rock Creek Bridge (Jefferson County, Missouri)
Built 1902, Approaches Replaced 1947
Pony truss railroad bridge over Rock Creek in Kimmswick, next to the Windsor Harbor Bridge
Open to railroad traffic

UP - Rock River Bridge (Watertown) (Jefferson County, Wisconsin)
Built 1903
Deck plate girder bridge over Rock River on Union Pacific Railroad
Open to traffic

UP - Rockport Road Overpass (Rock County, Wisconsin)
Built 1907
Concrete arch bridge over Rockport Road on Union Pacific Railroad in Janesville
Open to traffic

UP - Root River Swing Bridge (Racine County, Wisconsin)
Built 1908
Deck truss swing bridge over Root River on Union Pacific Railroad
Open to traffic

UP - Rossville Bridge (Shawnee County, Kansas)
Built 1906
Through truss bridge over Cross Creek on the Union Pacific Railroad at Rossville
Open to traffic

UP - Rough Creek Trestle (Ste. Genevieve County, Missouri)
Opened Nov. 29, 1902
Large railroad viaduct on the former Missouri-Illinois Railroad (Now Union Pacific Railroad) near Weingarten; visible from MO 32
Open to railroad traffic

UP - Sabinal River Bridge (Uvalde County, Texas)
Unknown builder-SW deck girder built in 1906-Main span built in 1903
Pratt through truss bridge over Sabinal River on Railroad
Open to traffic

UP - Sacramento River Bridge (Siskiyou County, California)
Built 1901
Pin-connected Pratt through truss bridge over Sacramento River on Union Pacific Railroad
Open to traffic

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

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

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

UP - Salinas River Bridge (Monterey County, California)
Built 1903
Warren through truss bridge over Salinas River on Union Pacific Railroad
Closed to all traffic

UP - Saline River Bridge (Saline County, Kansas)
Built 1902
Through truss bridge over Saline River on Union Pacific Railroad
Open to traffic

UP - Salt Creek Bridge (Tama County, Iowa)
Built 1902
Pony/through plate girder bridge over Salt Creek on Railroad
Open to traffic

UP - Salt Fork Bridge (Saline County, Missouri)
Built 1903 by the American Bridge Co.
Deck plate girder bridge over Salt Fork and CR 225 on the Union Pacific Railroad
Open to traffic

UP - San Marcos River Bridge (Guadalupe County, Texas)
Through truss bridge over San Marcos River on Railroad
Open

UP - Sandy River Bridge (Multnomah County, Oregon)
Built 1906
Warren through truss bridge over Sandy River on Union Pacific Railroad in Troutdale
Open to traffic

UP - Santa Ana River Viaduct (Riverside County, California)
Built 1904
Closed-spandrel arch bridge over Santa Ana River on Union Pacific Railroad
Open to traffic

UP - Santa Susana Tunnel (Ventura County, California)
Finished in 1904, Rebuilt 1922
Tunnel on Union Pacific Railroad
Open to traffic

UP - Santiam River Bridge (Marion County, Oregon)
Built 1906
Pratt through truss bridge over Santiam River on Union Pacific Railroad in Jefferson
Open to traffic

UP - Scranton Avennue Overpass (Lake County, Illinois)
NBI shows 1947 but bridge plate shows 1904
Pony/through plate girder bridge over IL 176 (Scranton Ave) on UPRR (Former C&NW) in Lake Bluff
Open to traffic

UP - Scranton Avennue Overpass #2 (Lake County, Illinois)
NBI shows 1947 but bridge plate shows 1904
Pony/through plate girder bridge over IL 176 (Scranton Ave) on UPRR (Former C&NW) in Lake Bluff
Open to traffic

UP - Sespe Creek Bridge (Ventura County, California)
Built 1902
Through truss bridge over Sespe Creek on Union Pacific Railroad in Fillmore
Open to traffic

UP - Sheboygan River Bridge (Sheboygan County, Wisconsin)
Built 1906
Quadruple-intersection lattice through truss bridge over Sheboygan River on Union Pacific Railroad
Open

UP - Shell Rock River Bridge (Freeborn County, Minnesota)
Built 1900
Deck plate girder bridge over Shell Rock River on Union Pacific Railroad
Open to traffic

UP - Small Stream Arch (Linn County, Iowa)
Built 1905
Closed-spandrel arch bridge over Small stream on Union Pacific Railroad
Open to traffic

UP - Smoky Hill River Bridge (Salina) (Saline County, Kansas)
Built 1903
Warren Through truss bridge over Smoky Hill River on Union Pacific Railroad
Open to traffic

UP - South Omaha Rail Crossing (Douglas County, Nebraska)
Built 1907
Warren pony truss bridge over BNSF Railway on Union Pacific Railroad
Open to traffic

UP - South Skunk River Bridge (Mahaska County, Iowa)
Built 1900
Warren deck truss bridge over South Skunk River on Union Pacific Railroad
Open to traffic

UP - Spring Creek Bridge (Watonwan County, Minnesota)
Built 1901 during a line change by the Lassig Division of American Bridge Company
Deck plate girder bridge over Spring Creek on Union Pacific Railroad
Open to traffic

UP - Stone Arch (Linn County, Iowa)
Built 1901 during a double tracking project
Bridge over Unnamed Stream on UP
Open to traffic

UP - Straight River Bridge #2 (Steele County, Minnesota)
Built 1902
Deck plate girder bridge over Straight River on Union Pacific Railroad
Open to traffic

UP - Straight River Bridge #3 (Steele County, Minnesota)
Built 1902
Deck plate girder bridge over Straight River on Union Pacific Railroad
Open to traffic

UP - Straight River Bridge #4 (Steele County, Minnesota)
Built 1902
5 Span Deck Plate Girder bridge over Straight on Union Pacific Railroad
Open to traffic

UP - Straight River Bridge #5 (Steele County, Minnesota)
Built 1902
Warren deck truss bridge over Straight River on Union Pacific Railroad
Open to traffic

UP - Straight River Bridge #6 (Steele County, Minnesota)
Built 1903
Deck plate girder bridge over Straight River on Union Pacific Railroad
Open to traffic

UP - Straight River Bridge #7 (Rice County, Minnesota)
Built 1903
Deck plate girder bridge over Straight River on Union Pacific Railroad
Open to traffic

UP - Straight River Bridge #8 (Rice County, Minnesota)
Built 1903
Deck plate girder bridge over Straight River on Union Pacific Railroad
Open to traffic

UP - Straight River Bridge #9 (Rice County, Minnesota)
Built 1903
Deck plate girder bridge over Straight River on Union Pacific Railroad
Open to traffic

UP - Stranger Creek Bridge (Linwood) (Leavenworth County, Kansas)
Built 1905
Through truss bridge over Stranger Creek on Union Pacific Railroad
Open to traffic

UP - Tay Street Overpass (Winnebago County, Illinois)
Built 1900
Pony/through plate girder bridge over S. Fork Kent Creek on Union Pacific Railroad
Open to traffic

UP - Timber Creek Bridge (McLean County, Illinois)
Built 1902
Deck plate girder bridge over Timber Creek on Union Pacific Railway (former Southern Pacific))
Open

UP - Timber Creek Bridge (S) (Marshall County, Iowa)
Built 1900
Pratt through truss bridge over Timber Creek on Union Pacific Railroad
Open to traffic

UP - Tobin Bridge (Plumas County, California)
Built 1909
Through truss railroad bridge over CA 70 in Tobin
Railroad traffic only

UP - Trinity River Bridge (Great Trinity Forest) (Dallas County, Texas)
Built 1904
Camelback Pratt through truss bridge over Trinity River on Railroad (UP)
Open to traffic

UP - Tunnel 10 (Boulder County, Colorado)
Built 1903, wood lining burned 1943
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 17 (Siskiyou County, California)
Built 1909
Tunnel under Under Dorris Hill on Union Pacific Railroad
Open to traffic

UP - Tunnel 18 (Placer County, California)
Built 1909
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 18 (Siskiyou County, California)
Built 1909
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 23 (Placer County, California)
Built 1909
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 26 (Placer County, California)
Built 1909
Tunnel under Under Railroad on Union Pacific Railroad
Open to traffic

UP - Tunnel 28 (Placer County, California)
Built 1908
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 28 (Gilpin County, Colorado)
Built 1903
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 29 (Placer County, California)
Built 1909
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 29 (Gilpin County, Colorado)
Built 1903
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 30 (Gilpin County, Colorado)
Built 1903
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 35 (Grand County, Colorado)
Built 1906-7
Tunnel on Union Pacific Railroad
Open to traffic

UP - Tunnel 39 (Grand County, Colorado)
Built 1906-7
Tunnel on Union Pacific Railroad
Open to traffic

UP - Turtle Creek Bridge (Winnebago County, Illinois)
Abutment cornerstone shows circa 1900.
Pony/through plate girder bridge over Turtle Creek on Union Pacific RR (former C&NW))
Open to traffic

UP - Twin Cities Bridge (Sutter County, California)
Built 1907; Road trusses removed ca. 1955 due to flooding damage.
Pin connected Pratt through truss bridge over Feather River on railroad trail
Open to pedestrians

UP - Umatilla River Bridge No. 6 (Umatilla County, Oregon)
Built 1906
Through truss bridge over Umatilla River on Union Pacific Railroad
Open to traffic

UP - Unnamed Stream Bridge (Jefferson County, Wisconsin)
Built 1903
Stone arch bridge over Unnamed Stream on Union Pacific Railroad
Open to traffic

UP - Valley Boulevard Overpass (Los Angeles County, California)
Built 1906
Steel stringer bridge over Valley Boulevard & BNSF Spur on Abandoned Union Pacific Railroad in Los Angeles
Abandoned

UP - Washington Street Overpass (Shelby County, Illinois)
Built 1900
Deck plate girder bridge over Washington Street on the Shelbyville Industrial Rail Spur in Shelbyville
Open to traffic

UP - Water Street Overpass (Ramsey County, Minnesota)
Built 1905
Steel stringer bridge over Water Street on Union Pacific Railroad
Open to traffic

UP - Webb High Bridge (Clay County, Iowa)
Built 1900
Abandoned double-intersection warren deck truss bridge over Little Sioux River on former Union Pacific Railroad
Derelict/abandoned with rails removed

UP - Webster Avenue Bridge (Cook County, Illinois)
Built 1900
Steel stringer bridge over Webster Avenue on Union Pacific Railroad
Open

UP - West Beaver Creek Bridge (Greene County, Iowa)
Built 1901, Replaced 2017
Lost Pony/through plate girder bridge over West Beaver Creek on Union Pacific Railroad
Open to traffic