145th Avenue Bridge (Kossuth County, Iowa)
Built 1900; replaced by new bridge in 1997
Through truss bridge over East Fork Des Moines River on 145th Avenue (CH C12)
Open to pedestrians only

145th Street Bridge (New York County, New York)
Built 1900; rehabilitated 1988
Swing bridge over Harlem River on 145th Street in New York
Open to traffic

1st Street Bridge (Floyd County, Iowa)
Built 1900
Two-span closed-spandrel arch bridge over Shell Rock River on 1st Street SW near Nora Springs
Open to traffic

84th Street Bridge (Minnehaha County, South Dakota)
Built 1900
Pony truss bridge over Creek on 84th Street, 1 mi. south of Renner in Mapleton Township
Open to traffic

Anderson Bridge (Lyon County, Iowa)
Built 1900
Through truss bridge over Rock River on 250th Street north of Doon
Open to traffic

Atchison Railroad Bridge (Atchison County, Kansas)
Built 1900
Through truss swing bridge over the Missouri River on the Union Pacific railroad at Atchison
Open to traffic

Big Rocky Fork Bridge (Parke County, Indiana)
Built 1900
Burr arch-truss bridge over Big Rocky Fork Creek on CR 720 S (bypassed)
Open to pedestrians

Christians Creek Route 907 Bridge (Augusta County, Virginia)
Built 1900
Pony truss bridge over Christians Creek on Route 907
Open to one-lane traffic

Cibolo Creek Bridge (Wilson County, Texas)
Built 1900
Pony truss bridge over Cibolo Creek on CR 337
Closed to all traffic

Cottrell Road Bridge (Tuscola County, Michigan)
Built 1900; Replaced 2001
Lost Timber stringer bridge over Saginaw Valley Railroad on Cottrell Road in Vassar
Replaced by new bridge

Doon Bridge (Lyon County, Iowa)
Built 1900; replaced ca. 2005
Lost through truss bridge over Rock River Overflow on 250th Street north of Doon in Doon
Replaced by a new bridge

Horton Road Bridge (Lenawee County, Michigan)
Built 1900; Closed 1984; Replaced 1993
Lost Camelback Pony truss bridge over Black Creek on Horton Road in Adrian
Replaced by new bridge

Index Railroad Bridge (Bowie County, Texas)
Built 1899-1900 by the Missouri Valley Bridge & Iron Works
Through truss swing bridge over Red River on the KCS Railroad
Open to traffic

Johnsonville Railroad Bridge (Humphreys County, Tennessee)
Originally built 1867 as a timber Howe truss bridge; rebuilt or modified in 1873, 1893, 1900, and 1915; demolished 1945 with the creation of Kentucky Lake
Lost through truss swing bridge over Tennessee River on the NC&Stl Railway between Eva and (Old) Johnsonville
No longer exists

Kaufman's Distillery Covered Bridge (Lancaster County, Pennsylvania)
Built 1900
Covered bridge over Big Chickies Creek on Sun Hill Road
Open to traffic

Klondike Road Bridge (Jefferson County, Missouri)
Built 1900 by the St. Louis Bridge & Iron Co. as a two-span bridge at Times Beach over the Meramec River. One span relocated here in 1933; replaced by a new bridge in 1993
Lost through truss bridge over Big River on Klondike Road northeast of Morse Mill
Replaced by modern bridge

Lanesboro Root River Railroad South Crossing (Fillmore County, Minnesota)
Previous span consisted of a wooden Howe through truss bridge. Bridge was washed out during the flooding of 1900 and was subsequentially replaced with the current structure.
Pratt pony truss bridge over Root River just 0.2 miles west of Hwy. 250 Bridge on MN Southern Railroad (now Root River Trail)
Open to pedestrians

Lick Log Creek Bridge (Bollinger County, Missouri)
Originally built across the Castor River at Zalma in 1900 by Stupp Brothers Bridge & Iron Co. of St. Louis. Moved to present location when the current Zalma Bridge was built 1930. Replaced 1995 by another Derelict through truss over Lick Log Creek just south of Gipsy Bridge on CR 736
Abandoned with portions of deck missing, replaced by new truss bridge

Lincoln Drive Tunnel (Cumberland County, Illinois)
Built ca. 1900
Tunnel under Cnrl Rr on Lincoln Dr(Ms 1230) in Greenup
Open to traffic

Midland Fredericktown Road Bridge (Columbiana County, Ohio)
Built 1900; rehabilitated 2004
Through truss bridge over North Fork Little Beaver Creek on Midland Fredericktown Road (TR 1038) in Calcutta
Open to traffic

Orangeville Bridge (Orange County, Indiana)
Through truss bridge over Lost River on CR 520 West
Open to traffic

Riverdale Road Covered Bridge (Ashtabula County, Ohio)
Built 1900
Covered bridge over Grand River on Riverdale Road (CR 69)
Open to traffic

Riverside Drive Manhattan Valley Viaduct (New York County, New York)
Built 1900; rehabilitated 1961 and 1988
Steel arch viaduct carrying Riverside Drive over 125th-134th Streets (Manhattan Valley)
Open to traffic

Rock Mill Covered Bridge (Fairfield County, Ohio)
Built 1900-01 by Jacob R. Brandt for $575, Restored 2008
Covered bridge over Hocking River on Rock Mill Road
Open to pedestrians only

Rockport Bridge (Hot Spring County, Arkansas)
Built 1900 by Stupp Brothers Bridge & Iron Co.; destroyed by flooding in 1990
Lost three-span through truss bridge over Ouachita River on AR 84 in Malvern
Destroyed by flooding

Satank Bridge (Garfield County, Colorado)
Built 1900 by the Pueblo Bridge Co.
Wooden through truss over Roaring Fork River on CR 106 near Carbondale
Closed to all traffic

Side Ditch Entrance Bridge (Dubuque County, Iowa)
Built 1900
Pony truss bridge over Side Ditch on an entrance road
Open to traffic

Sonestown Covered Bridge (Sullivan County, Pennsylvania)
Built 1900; rehabilitated 2001
Covered bridge over Muncy Creek on Champion Road (TR 310)
Open to traffic

South Euclid Road Bridge (Bay County, Michigan)
Built 1900; Replaced 1991
Lost Steel stringer bridge over Squaconning Creek on South Euclid Road in Bay City
Replaced by new bridge

Ten Mile Creek Bridge (Winneshiek County, Iowa)
Built 1900
Pony truss bridge over Ten Mile Creek on a local road
Open to traffic

Third Avenue Bridge (New York County, New York)
Built 1900; rehabilitated 1957
Swing bridge over Harlem River on Third Avenue in New York
Open to traffic

Upper Iowa River Bridge (Winneshiek County, Iowa)
Built 1900
Through truss bridge over Upper Iowa River on a local road
Open to traffic

UPRR Bridge (Boone County, Iowa)
Built 1900
Pony truss bridge over UPRR on a local road
Open to traffic

UPRR Bridge (Boone County, Iowa)
Built 1900
Pony truss bridge over UPRR on a local road
Open to traffic

Watervale Road Bridge (Harford County, Maryland)
Built 1900; rehabilitated 1976
Pony truss bridge over Winters Run on Watervale Road in Bel Air North
Open to traffic

Wenatchee River Bridge (Chelan County, Washington)
Built 1900; rehabilitated 1936
Through truss bridge over Wenatchee River on US 2
Open to traffic

Windom Railroad Bridge (Cottonwood County, Minnesota)
Built 1900, replacing an earlier bridge
Two-span through truss bridge over West Fork Des Moines River on the Union Pacific Railroad at Windom
Open to railroad traffic