M-frame portal

View Exhibit map

170th Street Bridge (Story County, Iowa)
Built 1939
Through truss bridge over South Skunk River on 170th Street
Open to traffic

1st Avenue North Bridge (Cass County, North Dakota)
Replaced 1937
Lost Through truss bridge over Red River of the North on 1st Avenue North
Replaced by a new bridge

220th Street Bridge (Adams County, Iowa)
Built ca. 1930
Through truss bridge over East Nodaway River on 220th Street in Corning
Open to traffic

410th Street Bridge (Sioux County, Iowa)
Built 1897 by W.W. Allen; replaced 2001
Lost through truss bridge over Floyd River on 410th Street southwest of Hospers
Replaced by a modern bridge

Adair County Road 16 Bridge (Adair County, Missouri)
Built ca. 1960
Through truss bridge over Blackbird Creek on Grapevine Road
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

Austin Peay Bridge (Jackson County, Tennessee)
Built by the Nashville Bridge Company in 1924 and replaced 1994
Lost K-Truss through truss bridge over Cumberland River on Tn 56
Replaced by new bridge

Black Diamond Road SW Bridge (Johnson County, Iowa)
Built 1935; Replaced 2009
Lost through truss bridge over Old Mans; Creek on Black Diamond Road SW
Replaced by a new bridge

Branch Patterson Creek Bridge (Allamakee County, Iowa)
Built 1915; rehabilitated 1956
Through truss bridge over a branch of Patterson Creek on Patterson Creek Drive
Open to traffic

Branch Yellow River Bridge (Allamakee County, Iowa)
Built ca. 1950; replaced 2021
Lost Pratt through truss bridge over Branch Yellow River on Smithfield Drive
Replaced by a new bridge

Brighton Bridge (Washington County, Iowa)
Built 1908; Replaced 1953
Lost Pennsylvania Petit through truss bridge over Skunk River on Road
Replaced by a new bridge

Broadway Truss Bridge (Bonneville County, Idaho)
Built 1907, Replaced and relocated to Johns Hole in 1928
Lost Pratt through truss bridge over Snake River on Broadway Street
Replaced by a new bridge

Brookville Road Bridge (Butler County, Ohio)
Replaced 1996
Lost Pratt through truss bridge over Indian Creek on Brookville Road
Replaced by a new bridge

Brushy Creek Bridge (Guthrie County, Iowa)
Built 1976
Through truss bridge over Brushy Creek on Kopeck Avenue
Open to traffic

Bunker Mill Bridge (Washington County, Iowa)
Built 1887; M-frame portal bracing was added to the Town Lattice portal bracing in 1909.; Closed to traffic in 2003; Damaged by arson in 2013; Restored 2013-2017
Pratt through truss bridge over English River on Nutmeg Avenue
Open to pedestrians only

Center Street Bridge (Pre 1978) (Penobscot County, Maine)
Lost Through truss bridge over West Channel Penobscot River on Center Street (US Route 2)
Replaced by a new bridge

CN - Fond du Lac River Bridge (Fond du Lac County, Wisconsin)
Built 1895, Widened 1902; 1895 Span Removed Ca. 1960
Lattice through truss bridge over Fond du Lac River on Abandoned Canadian National Railway
Derelict/abandoned

CNW - Milwaukee River Swing Bridge (Milwaukee County, Wisconsin)
Built 1915 to replace a circa 1890 double-track swing bridge
Through truss bridge over Milwaukee River on Chicago & Northwestern
Closed to all traffic

Cumberland River KY 92 Bridge (Whitley County, Kentucky)
Built 1937
Through truss bridge over Cumberland River on KY 92
Open to traffic

Curtis Bridge (Johnson County, Iowa)
Built 1927; Replaced 1956
Lost Pratt through truss over Iowa River on Old US218
Replaced by a new bridge

Damon Bridge (Jackson County, Iowa)
Built 1956
Through truss bridge over Maquoketa River on 435th Avenue (CR Z34)
Open to traffic

Erie Canal Bridge (Onondaga County, New York)
Built 1951; rehabilitated 1985
Through truss bridge over Erie Canal on CR 61
Open to traffic

Flintville Bridge (Harford County, Maryland)
Built 1927; Replaced 1998
Lost Pratt through truss bridge over Broad Creek on Flintville Road
Replaced by a new bridge

Four Bears Bridge (Original) (Mercer County, North Dakota)
Built 1934; Garrison Dam built 1943 and flooded Fort Berthold Indian Reservation to create Lake Sakakawea; Main span moved and installed on the new Four Bear Bridge location 1955
Lost Through truss bridge over Missouri River on ND 8
No longer exists

Fox Bridge (Caroline County, Virginia)
Built 1935; replaced 1963
Lost Warren through truss bridge over North Anna River on US Route 1 (Jefferson Davis Highway)
Replaced by a new bridge

Gates Bridge (Floyd County, Iowa)
Lost Pratt through truss bridge over Shell Rock River on Road near Marble Rock
Replaced by a new bridge

Hill's Mill Bridge (Howard County, Iowa)
Built 1902
Pratt through truss bridge over Upper Iowa River on Mill Road
Open to traffic

Horn's Ferry Bridge (Marion County, Iowa)
Built in 1881, Two spans lost to flooding in 1929, Partially collapsed on 31 August 1991, Converted to observation decks shortly thereafter.
Lost Camelback through truss bridge over Des Moines River near the Red Rock Dam on 198th Place
Collapsed

IA13 Wapsipinicon River Bridge (Linn County, Iowa)
Built 1929; Replaced 1973
Lost Warren through truss with all verticals bridge over Wapsipinicon River on Marion Road
Replaced by a new bridge upstream

IA92 Iowa River Bridge (Old) (Louisa County, Iowa)
Built 1937; Replaced 1985
Lost Warren through truss bridge over Iowa River on IA92
Replaced by a new bridge

Jefferson Bridge (Greene County, Iowa)
Lost Pratt through truss bridge over North Raccoon River on Road
Replaced by a new bridge

Kentucky River KY 80 Bridge (Perry County, Kentucky)
Built 1929
Lost Parker through truss bridge over Kentucky River on KY 80 in Combs
Replaced by a new bridge

Knoll Ridge Trail Bridge (Madison County, Iowa)
Built 1948
Through truss bridge over Middle River on Knoll Ridge Trail
Open to traffic

KY55 Salt River Bridge (Spencer County, Kentucky)
Built 1932; replaced 2016
Lost Pratt through truss bridge over Salt River on KY 55 in Taylorsville
Replaced by a new bridge

Long Bridge (Ida County, Iowa)
Replaced 1913
Lost Pratt through truss bridge over Maple River on 1st Street
Replaced by a new bridge

Lundy Bridge (Winneshiek County, Iowa)
Built 1900
Through truss bridge over Upper Iowa River on Lundy Bridge Road
Open to traffic

Main Street Bridge (1900) (Lyon County, Iowa)
Built 1900; Replaced 1922
Lost Pratt through truss bridge over Rock River on Main Street
Replaced by a new bridge

Middle Nodaway River-242nd St. Bridge (Montgomery County, Iowa)
Through truss bridge over Middle Nodaway River on 242 Street
Open to traffic

Middle River Bridge (Warren County, Iowa)
Built 1949; replaced 2010
Lost through truss bridge over Middle River on CR R57
Open to traffic as a bland piece of truss-less concrete

Millertown Bridge (Jackson County, Iowa)
Built ca. 1940
Through truss bridge over South Fork Maquoketa River on 30th Avenue
Replaced by a new bridge

Milton Street Bridge (Warren County, New York)
Built 2011
Modern Warren through truss with all verticals bridge over Schroon River on Milton Street (county route 14)
Open to traffic

Mount Sterling Bridge (Gasconade County, Missouri)
Built 1925; Replaced 1979
Lost through truss bridge over Gasconade River at Mount Sterling on US 50
Replaced 1979

North Bridge (Winnebago County, Iowa)
Lost Pratt through truss bridge over Winnebago River on Road
Replaced by a new bridge

North English River Bridge (Iowa County, Iowa)
Built ca. 1960
Through truss bridge over North English River on Poweshiek-Iowa Road
Open to traffic

North Sandy Creek Bridge (Jefferson County, New York)
Built 1949; rehabilitated 1992
Through truss bridge over North Sandy Creek on NY 193
Open to traffic

NW 86th Street Beaver Creek Bridge (Polk County, Iowa)
Built 1909 at Levey, Iowa; Rebuilt here 1939; Closed 1982
Lost Pratt through truss bridge over Beaver Creek on NW 86th Street
Removed but not replaced

Old Muscatine Road Bridge (Cedar County, Iowa)
Built 1935; rehabilitated 1950
Through truss bridge over Sugar Creek on Muscatine Road
Open to traffic

Quasqueton Bridge (Buchanan County, Iowa)
Replaced 1959
Camelback through truss bridge over Wapsipinicon River on Water Street
Replaced by a new bridge

Rexford Bridge (Schenectady County, New York)
Built 1965, replaced 2017
Through truss bridge over Erie Canal/Mohawk River on Balltown Rd. (N.Y.S. Rte. 146)
Replaced by a new bridge

Roanoke River Bridge (Northampton County, North Carolina)
Lost Through truss bridge over Roanoke River on US-158
Replaced by a new bridge

Seneca River Bridge (Seneca County, New York)
Built 1916
Warren through truss bridge over Seneca River on Gorham Street
Closed to all traffic

Shell Rock River Bridge (Cerro Gordo County, Iowa)
Built ca. 1950
Through truss bridge over Shell Rock River on 340th Street
Replaced by a new bridge

South Chequest Lake Creek Bridge (Davis County, Iowa)
Built 1963
Through truss bridge over South Chequest Lake Creek on Yoke Blvd
Open to traffic

South River Bridge (Warren County, Iowa)
Built ca. 1950
Through truss bridge over South River on 120th Avenue in Indianola
Open to traffic

South River Bridge (Warren County, Iowa)
Built 1949
Through truss bridge over South River on 85th Avenue and CSAH 57
Open to traffic

South Timber Creek Bridge (Marshall County, Iowa)
Built 1954
Pratt Through truss bridge over South Timber Creek on 260th Street
Open to traffic

UP - Boone River Bridge (Hamilton County, Iowa)
Built 1902, Girder Added 1914
Through truss bridge over Boone River on Union Pacific Railroad in Webster City
Open to traffic

UP - Boyer River Bridge (Near Missouri Valley) (Harrison County, Iowa)
Quadrangular Lattice Through truss bridge over Boyer River on Union Pacific Railroad
Open to traffic

UP - Clinton Bridge (Middle Channel) (Whiteside County, Illinois)
Built 1909 replacing an older single track bridge
Through truss bridge over Mississippi River Center Channel on Union Pacific Railroad
Open

UP - Clinton Bridge (West Channel) (Clinton County, Iowa)
Built 1908-9; Caught fire 1958,
Through truss swing bridge over Mississippi River on Union Pacific Railroad


UP - Eagle Creek Bridge (Wright County, Iowa)
Built 1902, Approaches Added 1915
Through truss bridge over Eagle Creek on Union Pacific Railroad
Open to traffic

UP - East Branch Boyer River Bridge (Crawford County, Iowa)
Built 1902 as double track bridge; third track and third truss line added in 1910.
Quadrangular Lattice Through Truss Bridge over Boyer River on Union Pacific Railroad
Open to traffic

UP - Graceland Rail Crossing (Milwaukee County, Wisconsin)
Built 1910
Through truss bridge over Wisconsin & Southern Railway on Union Pacific Railroad
Open to traffic

UP - Kickapoo Creek Bridge #2 (Peoria County, Illinois)
Built 1902
Quadrangular lattice through truss bridge over Kickapoo Creek on Railroad
Open to traffic

UP - Kickapoo Creek Bridge #3 (Peoria County, Illinois)
Built 1902, Approaches Rebuilt 1941
Quadrangular lattice through truss bridge over Kickapoo Creek on Union Pacific Railroad
Open to traffic

UP - Necedah Bridge (Juneau County, Wisconsin)
Built 1911
Quadrangular lattice through truss bridge over Yellow River and Canadian National Railway on Union Pacific Railroad
Open to traffic

UP - Omaha Railroad Bridge (1916) (Pottawattamie County, Iowa)
Built 1916
Through truss bridge over Missouri River on Union Pacific Railroad
Open to traffic

UP - Pigeon Creek Bridge (Pottawattamie County, Iowa)
Built 1936
Subdivided Warren Through truss bridge over Pigeon Creek on Union Pacific Railroad
Open to traffic

UP - Wapsipinicon River Bridge (Clinton County, Iowa)
Through truss bridge over Wapsipinicon River on Union Pacific Railroad
Open to traffic

UP - Watertown Plank Road Overpass (Milwaukee County, Wisconsin)
Built 1910
Through truss bridge bridge over Canadian Pacific Railway on Union Pacific Railroad
Open to traffic

UP - Wisconsin River Bridge (Dellwood) (Juneau County, Wisconsin)
Built 1911
Quadrangular lattice through truss bridge over Wisconsin River on Union Pacific Railroad
Open to traffic

UP - Zoo Truss (Milwaukee County, Wisconsin)
Built 1910, Bypassed and left standing 2015
Quadrangular Warren through truss bridge over Hank Aaron State Trail on Union Pacific Railroad
Intact but closed to all traffic

Upper Soldier Ditch Bridge (Monona County, Iowa)
Built ca. 1910
Through truss bridge over Upper Soldier Ditch on 210th Street
Derelict/abandoned

US 27 Cumberland River Bridge (Old) (Pulaski County, Kentucky)
Construction began in 1930. Bridge opened in 1931. Replaced in 1950
Lost Through truss bridge over Cumberland River on US 27 at Burnside
Replaced by a new bridge

US 6 Adel Bridge (1932) (Dallas County, Iowa)
Built 1932; Replaced 1977
Lost Warren through truss bridge over North Raccoon River on US 6
Replaced by a new bridge

US 67 Rock River Bridge (North Channel) (Rock Island County, Illinois)
Built 1948; rehabilitated 1985
Steel through arch bridge over Rock River on US 67
Open to traffic

US 67 Rock River Bridge (South Channel) (Rock Island County, Illinois)
Built 1948; rehabilitated 1985
Steel through arch bridge over Rock River & Hennepin Canal on US 67
Open to traffic

US169 East Fork Des Moines River Bridge (S) (Kossuth County, Iowa)
Built ca 1936, Replaced 1971
Lost Parker through truss bridge over Des Moines River on US 169
Replaced by a new bridge

Village Creek Bridge (Allamakee County, Iowa)
Built ?; Replaced 1981
Lost Warren through truss bridge over Village Creek on River Road
Replaced by a new bridge

Vine Street Bridge (Wapello County, Iowa)
Built 1898; Removed 1980
Lost Pratt through truss bridge over Des Moines River on Vine Street
Removed but not replaced

Wadena Bridge (Fayette County, Iowa)
Lost Pratt through truss bridge over Volga River on Road
Replaced by a new bridge

West Fork Nodaway River Bridge (Adair County, Iowa)
Built 1949
Warren through truss bridge over West Fork Nodaway River on 290th Street
Open to traffic

West Nishnabotna River Bridge (Fremont County, Iowa)
Built 1952; replaced in 2015
Through truss bridge over West Nishnabotna River on CR J22 (150 Street)
Demolished and replaced

Wilson Mill Bridge (Harford County, Maryland)
Built 1931; Replaced 1995
Lost Parker through truss bridge over Deer Creek on MD161
Replaced by a new bridge