There are 33,424 bridges in this category · Only showing 21,554 bridges with photos
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Truss

Interstate 80 - Allegheny River Bridge (Clarion County, Pennsylvania)
Built 1966; rehabilitated 2013
Warren deck truss bridge over Allegheny River on I-80
Open to traffic

Interstate 80 - Clarion River Bridge (Clarion County, Pennsylvania)
Built 1965; rehabilitated 2013
Warren deck truss bridge over Clarion River on I-80
Open to traffic

Interstate 80 - Deer Creek Bridge (Clarion County, Pennsylvania)
Built 1965; rehabilitated 2013
Warren deck truss bridge over Deer Creek on I-80
Open to traffic

Interstate Bridge (St. Louis County, Minnesota)
Built 1897; Swing span struck and replaced 1906; replaced by Blatnik Bridge 1961, all but northern span removed 1970's
Parker through truss bridge over St. Louis River on Fishing pier (former railroad, US 53)
Open to pedestrians

Interstate Canal Bridge (Scotts Bluff County, Nebraska)
Built 1915
Pratt pony truss bridge over Interstate Canal on a bypassed section of Sugar Factory Rd (Co Rd 23)
Open to pedestrians

Intracoastal Waterway Bridge (Broward County, Florida)
Through truss bridge over Intracoastal Waterway on Route 816
Demolished

Intracoastal Waterway Bridge (Brunswick County, North Carolina)
Built 1958; replaced 1984
Parker through truss swing bridge over the Intracoastal Waterway on State Route 904
Replaced by a new bridge

Intracoastal Waterway Bridge (New Hanover County, North Carolina)
(Main design: Warren through truss)
Built 1931; replaced 1962
Lost Warren through truss bridge over Intracoastal Waterway on State Route 421
Replaced by a new bridge

Intracoastal Waterway Bridge (Older) (St. Mary Parish, Louisiana)
Replaced in 1968
Lost Through truss bridge over Intracoastal Waterway on Louisiana Route 319
Replaced by a new bridge

Intracoastal Waterway Swing Bridge (Old) (Pinellas County, Florida)
Builtin 1916 to replace ferry
Lost Through truss bridge over Intracoastal Waterway on Florida Route 688
No longer exists replaced 1958

Inwood Iron Bridge (Lebanon County, Pennsylvania)
Built 1899 by the Pittsburg Bridge Co. and Nelson & Buchanan; rehabilitated 1960
Through truss bridge over Swatara Creek on TR 575
Closed to all traffic

Inwood Iron Bridge Park (Lebanon County, Pennsylvania)
Built 1899 Pittsburgh Bridge Co., with Nelson & Buchanan as agents. Removed from Iron Bridge Rd, refurbished, and placed on display in park a quarter of a mile from original location.
Pennsylvania through truss bridge on Pedestrian viewing platform
Open to pedestrians only

Iola Bowstring (Allen County, Kansas)
Lost Bowstring through truss bridge over Neosho River? on Road
Replaced by a new bridge

Iola Bridge (Gunnison County, Colorado)
Built 1908
Pratt through truss bridge over Gunnison River on Road
Inundated?

Ione Bridge (Pend Oreille County, Washington)
Built 1934
Deck truss bridge over Pend Oreille River on Sullivan Lake Road (CR 9345)
Open to traffic

Ionia Road - Thornapple River Bridge (Pre 1956) (Eaton County, Michigan)
Lost Whipple through truss bridge over Thornapple River on Ionia Road
Replaced by a new bridge in 1957

IORY - Quincy High Bridge (Logan County, Ohio)
Built 1911
Warren deck truss with alternating verticals bridge over Cr73 and Great Miami River on Dt&I Railroad
Open to traffic

IORY - Turtle Creek Bridge (Warren County, Ohio)
Pratt through truss bridge over Turtle Creek on Lebanon Mason Monroe Railroad
Open to traffic

Iowa Central - Mississippi River Bridge (Mercer County, Illinois)
Built 1886, demolished 1910
Lost Whipple through truss bridge over Mississippi River on Iowa Central Railroad in Keithsburg
Replaced by new bridge

Iowa Junction Mystery Bridge (Washington County, Iowa)
(Main design: Pratt through truss)
Lost Pratt through truss bridge over English River on Red Ball Route
Replaced by a new bridge

Iowa River Bridge (Wright County, Iowa)
Built ca. 1930
Pony truss bridge over Iowa River on 190th Street
Open to traffic

Iowa River Bridge (Iowa County, Iowa)
Lost Pratt through truss bridge over Iowa River on IA 21 (?)
Replaced by a new bridge

Iowa River E Avenue Bridge (Tama County, Iowa)
Built 1938
Through truss bridge over Iowa River on E Avenue
Closed due to severe erosion causing abutment failure.

Ioway Creek Footbridge (Story County, Iowa)
Built in 1907 by the Chicago & North Western Railway; Lost to flooding in 1918
Lost Truss bridge over Ioway (Formerly Squaw) Creek on footpath
Destroyed by flooding

IR - Fox River Bridge (LaSalle County, Illinois)
Pratt deck truss bridge over Fox River on Illinois RailNet West of Sheridan
Open to traffic

IR - Illinois River Bridge (Ottawa) (LaSalle County, Illinois)
Built 1898; Lift span added ca. 1932
Through truss bridge over Illinois River on Chicago, Burlington, and Quincy Railroad in Ottawa


IR - Rockford Rail-Trail Bridge (Winnebago County, Illinois)
Built 1890s, Relocated Here 1916-1918; Converted to Trail Use 2016
Through truss bridge over Rock River on former Illinois RailNet
Open to pedestrians only

IRC - 18 Mile Creek Bridge (E) (Niagara County, New York)
Built 1889
Abandoned through truss bridge over 18 Mile Creek
Abandoned

Irene Bridge (Cherokee County, South Carolina)
Built 1917; Partial Collapses 1951 & 1955; Replaced 1956
Lost Pratt through truss bridge over Broad River on SC 211
Replaced by a new bridge

Irene Hixon Whitney Bridge (Hennepin County, Minnesota)
Built in 1988
Steel truss bridge over I-94, US Hwys. 12 & 52, Lyndale Avenue, and on/off ramps on Loring Greenway
Open to pedestrians

Irigaray Bridge (Johnson County, Wyoming)
Built 1913; moved & rehabilitated 1963;
Pennsylvania through truss bridge over Powder River on CR 254
Open to traffic

Iris Street Bridge (Carroll County, Illinois)
Built ca. 1930
Lost wooden Kingpost truss bridge over BNSF Railroad on Iris Street in Savanna
Removed but not replaced

Irish Bend Covered Bridge 37-02-09 (Benton County, Oregon)
Built 1921 at another site, Relocated to Irish Bend Road 1954, Closed 1975, Relocated to OSU location 1988
Howe through truss bridge over Oak Creek on Midge Cramer Path
Open to pedestrians

Irish Creek Bridge (Marshall County, Kansas)
Built ca. 1910; lost 2014
Lost pony truss bridge over Irish Creek, 3.0 mi. south and 1.5 mi. west of Vliets
Replaced by a new bridge

Irish Creek Bridge West (Marshall County, Kansas)
Abandoned Pratt pony truss bridge over Irish Creek on Zenith Road
Derelict/abandoned, east approach collapsed

Irish Hollow Creek Bridge (Jo Daviess County, Illinois)
Plaque has 1874 patent date on it by the Wrought Iron Bridge Company
Abandoned Pratt pony truss bridge over Irish Hollow Creek on Old ILL 84
Open to authorized vehicles only

Irishman Covered Bridge 14-84-01 (Vigo County, Indiana)
Built 1845, Moved 1971 from original location over Honey creek on Feree road, to Fowler Park.
Queenpost through truss bridge
Repairs completed, beautifully restored

IRM - Patoka River Bridge #1 (Dubois County, Indiana)
Built by the Southern Railway; Now owned by the Indiana Railway Museum out of French Lick.
Railroad bridge over the Patoka River East of Dubois Crossroads
Open to traffic

IRM - Patoka River Bridge #2 (Dubois County, Indiana)
Through truss bridge on Indiana Railway Museum line Northeast of Dubois
Open to traffic

Iron Bridge (Jackson County, Iowa)
Built ca. 1950
Through truss bridge over Maquoketa River on Iron Bridge Road
Open to traffic

Iron Bridge (Macon County, North Carolina)
Built 1934
Pony truss bridge over Chattooga River on FDR 1178 (Bull Pen Road)
Open to traffic

Iron Bridge (Spokane County, Washington)
Built 1911, Closed 1973, Converted to pedestrian bridge 2012
Triple-intersection lattice through truss bridge over Spokane River on Pedestrian Pathway
Open to pedestrians only

Iron Bridge (Franklin County, Pennsylvania)
Bridge the road is named after
Lost Bridge over Lehman Run on Iron Bridge Road
Replaced by new bridge

Iron Bridge (Monmouth County, New Jersey)
Built in 1887 by Dean & Westbrook
Lost Half-hip Pratt pony truss bridge over Mill Brook ravine on Little Street
No longer exists

Iron Bridge (Saratoga County, New York)
Inundated ca. 1930 when the Conklingville Dam was built; Is a popular SCUBA diving spot.
Pratt through truss bridge over Sacandaga River on Road
Inundated

Iron Bridge (Atlantic County, New Jersey)
Bowstring pony truss bridge


Iron Bridge at Howard Hill Road (Windsor County, Vermont)
Built 1890 by Groton Bridge Co.; Replaced by new bridge and put into storage 2007
Pratt through truss bridge over Black River on C3029 (Howard Hill Rd) in Cavendish
Replaced by new bridge and put into storage.

Iron Bridge Lane Bridge (Allegheny County, Pennsylvania)
Built in 1878 by the Morse Bridge Company of Youngstown, Ohio
Pony truss bridge over Bull Creek on Iron Bridge Road


Iron Bridge near Preston Hollow, NY (Albany County, New York)
Pratt through truss bridge
Replaced

Iron Bridge Road - Petersburg Bridge (Pike County, Indiana)
Built in 1875 by William T. Washer using the Smith Bridge Company's "Iron Arch #1 Design". Relocated to Petersburg in 2021
Bowstring pony truss bridge over Prides Creek on Old IN-56 (Water Street) (Pedestrian Walkway)
Under construction

Iron Bridge Road Bridge (Pike County, Indiana)
Built in 1875 by William T. Washer using the Smith Bridge Company's "Iron Arch #1 Design".
Bowstring pony truss bridge over Patoka River on CR 650 East
Dismantled and restored before being moved to Petersburg

Iron Bridge Road Bridge (Mercer County, New Jersey)
Abutments built 1868; Abutments rehabilitated, altered the superstructure (iron part) replaced in1924 with the (used, 1905?) present structure
Pony truss bridge over Crosswicks Creek on Iron Bridge Road
Open to traffic

Iron Bridge Road Bridge (Lancaster County, Pennsylvania)
Built 1898; rehabilitated 1975
Pony truss bridge over Conestoga River on Iron Bridge Road
Open to traffic

Iron Bridge Road Bridge (De Witt County, Illinois)
Abandoned 1989
Pratt through truss bridge over Salt Creek on a former alignment of North 830 E. Road
Abandoned

Iron Bridge Trail - North Fork Wheeling Creek Bridge (Greene County, Pennsylvania)
Built 1914 Rehabilitated 2007
Pony truss bridge over North Fork Wheeling Creek on Iron Bridge Trail
Open to pedestrians only

Iron Bridge, Penwell NJ (Hunterdon County, New Jersey)
Lost Bowstring through truss bridge over Musconetcong River on Penwell Road
Replaced by a new bridge

Iron Furnace Bridge (Grafton County, New Hampshire)
Built 1889 by the Berlin Iron Bridge Co.; Relocated and converted to pedestrian use 2001
Pin-connected Lenticular pony truss bridge over a tributary of Gale River on a pedestrian path
Open to pedestrians only

Iron Goat Trail - Bridge #402 (King County, Washington)
Through truss bridge
Open to pedestrians only

Iron Horse Regional Trail - Walnut Creek Bridge (Monument Boulevard) (Contra Costa County, California)
Unknown history, part of an urban railroad to trail conversion project
Pratt through truss bridge over Walnut Creek on Iron Horse Regional Trail
Open to pedestrians

Iron Horse Regional Trail - Walnut Creek Bridge (Ygnacio Valley Road) (Contra Costa County, California)
Railroad Bridge, 1929, re-used at this location for pedestrian walkway
Pratt through truss bridge over Walnut Creek on Iron Horse Regional Trail
Open to pedestrians

Iron Horse Trail Bridge (Kittitas County, Washington)
Polygonal Warren through truss with sub-panels bridge over Road on Bike path ( Formerly railroad )
Obvious fire damage, some repair work done.

Iron Horse Trailhead - Santa Clara River Bridge (Los Angeles County, California)
Built in 1898 over the Colorado River; Relocated here 1928 after the Saint Francis Dam collapse washed away the previous bridge.
Camelback Parker through truss bridge over Santa Clara River on Iron Horse Trail
Open to pedestrians

Iron Mountain - Arkansas River Bridge (Pulaski County, Arkansas)
Lost Pratt through truss bridge over Arkansas River on Iron Mountain Railroad
No longer exists

Iron Mountain - Judsonia Bridge (Old) (White County, Arkansas)
Replaced 1912
Lost Pratt through truss bridge over Little Red River on St. Louis, Iron Mountain & Southern Railway
Replaced by a new bridge

Iron Ore Creek Bridge (Grayson County, Texas)
Built around 1911 by the Midland Bridge Company of Kansas City, Missouri.It originally spanned Iron Ore Creek at Grayson County Route 597, but has been relocated to Loy Lake Park near Denison, Texas.
Warren pony truss bridge formerly over Iron Ore Creek on County Road 597
Relocated to Public Park

Iron Rocky River Bridge (Cabarrus County, North Carolina)
Lost Pratt through truss bridge over Rocky River on US 601
Replaced by a new bridge

Iron Trail Bridge (New Haven County, Connecticut)
Pony truss bridge over Mill River on Footpath
Open to pedestrians only

Irondequoit Bay Outlet Bridge (Monroe County, New York)
Built 1998
Seasonal bobtail Warren pony truss swing bridge over Irondequoit Bay on Lake Road
Open to traffic

Irons Fork AR 88 Bridge (Polk County, Arkansas)
Built 1907; Replaced 1955
Lost two-span through truss bridge over Irons Fork on AR 88 east of Mena
Replaced by a new bridge in 1955

Ironton-Russell Bridge (old bridge) (Lawrence County, Ohio)
Built 1922, owned by the Kentucky State Highway Department
Lost Cantilevered Warren through truss bridge over the Ohio River between Ironton, Ohio and Russell, Kentucky
Demolished

Ironwood Bluff Bridge (Itawamba County, Mississippi)
(Main design: Pratt through truss)
Built 1921
Through truss bridge over Old Tombigbee River on Van Buren Road
Open to traffic

Ironwood Road Bridge (Fayette County, Iowa)
Built ca. 1965
Three-span pony truss bridge over Turkey River on Ironwood Road
Open to traffic

Iroquois River Bridge (Iroquois County, Illinois)
(Main design: Through truss)
Built late 1890's, replaced late 1970's after damaged by motor vehicle
Lost Through truss bridge over Iroquois River on 2850th North Road, 2.3 miles west of Ill Rt 1 @ Martinton
Lost

Iroquois River CR 400W Bridge (Jasper County, Indiana)
Built ca. 1905
Lost Warren pony truss bridge over Iroquois River on County Road 400 West
Replaced by a new bridge

Iroquois River CR 800W Bridge (Jasper County, Indiana)
Built ca. 1910
Lost Pratt pony truss bridge over Iroquois River on County Road 800 West
Replaced by a new bridge

Iroquois River CR-Lake Kenoyer Rd. Bridge (Newton County, Indiana)
Built 1914
Lost Camelback through truss bridge over Iroquois River on Lake Kenoyer Road
Replaced by a new bridge

Iroquois River SR 16 Bridge (Newton County, Indiana)
Built 1932, rehabilitated in 1977, replaced in 1996
Lost Parker through truss bridge over Iroquois River on IN 16
Replaced by new bridge

Irrigation Canal Bridge (Richland County, Montana)
Built 1908; replaced 2006
Lost pony truss bridge over Irrigation Canal on CR 405
Replaced by a new bridge

IRT - Harlem River Bridge (Bronx County, New York)
Built 1916
Lost Through truss bridge over Harlem River on Third Avenue Elevated Railway
Removed but not replaced

Irvine Bridge (Warren County, Pennsylvania)
Built 1903
Lost Pratt through truss bridge over Brokenstraw Creek on Coovers Crossing Road (Old Route 6)
Replaced by a new bridge

Irvine Park Road Bridge (Chippewa County, Wisconsin)
Built 1936; Replaced ca. 2004
Lost truss bridge over Duncan Creek on Irvine Park Road in Chippewa Falls
Replaced by a new bridge

Irving Park Bridge (Du Page County, Illinois)
Lost Pony truss bridge
No longer exists

Irving Park Road Bowstring (Cook County, Illinois)
Lost Bowstring pony truss bridge over North Branch Chicago River on Irving Park Road & CRT
Replaced by a new bridge

ISC - Silver Creek Bridge (Clark County, Indiana)
Lost Pratt through truss bridge over Silver Creek on New Albany & Louisville Electric Railway
Removed

Ischua Creek Bridge (Cattaraugus County, New York)
Built ca. 1910; rehabilitated 1975
Through truss bridge over Ischua Creek on Mill Street
Removed but not replaced

Ischua Creek Bridge (Cattaraugus County, New York)
Built 1997
Pony truss bridge over Ischua Creek on Coal Chutes Road
Open to traffic

Islais Creek Bridge (1915) (San Francisco County, California)
Built 1915 ; replaced in 1945
Lost Baltimore through truss bridge over Islais Creek on Third Street/Kentucky Street
Replaced by a new bridge

Island Avenue Bridge (Somerset County, Maine)
Lost Pony truss bridge over Kennebec River on Island Avenue
Replaced by a new bridge

Island Avenue Canal Bridge (Essex County, Massachusetts)
Built 1930; Rehabilitated 2012
Polygonal Warren pony truss with alternating verticals bridge over North Canal on Island Avenue
Open to traffic

Island Park Bridge (Passaic County, New Jersey)
Pony truss bridge over Passaic River on driveway
Open to traffic

Island Park Bridge (Elkhart County, Indiana)
Built in 1869 by Simon Degraff as part of a 2-span bridge over the St. Joseph's River in Bristol; this span relocated here in 1907; destroyed by a fallen tree in 1952.
Lost bowstring through truss bridge over Elkhart River at Island Park entrance
Destroyed by a fallen tree during a windstorm.

Island Park Bridge (Lenawee County, Michigan)
Originally on Church St., removed & stored in 30's, moved to park entrance, moved to present location 1980's.
Pratt pony truss bridge over South Branch Raisin River on Island Park Trail
Open to pedestrians only

Island Ripple Bridge (Gallatin County, Illinois)
Lost Pratt through truss bridge over Saline River on Island Ripple Road
Removed but not replaced

Island Road Bridge over Rockaway Creek (Hunterdon County, New Jersey)
splint reinforced in 2001
Pratt pony truss bridge over Rockaway Creek on Island Road
Splint reinforced with pair of 36"x12" girders

Island Street Bridge (Cheshire County, New Hampshire)
Lost Bowstring through truss bridge over Ashuelot River on Island Street in Keene.
Replaced by a new bridge

ISRR - White Lick Creek Bridge (Morgan County, Indiana)
Pratt through truss bridge over White Lick Creek on Indiana Southern Railroad Company Incorporated
Open to traffic

ISRR - White River Bridge (Morgan County, Indiana)
Pratt through truss bridge over White River on Indiana Southern Railroad Company Incorporated
Open to traffic

ISRY - Chariton River Bridge (Appanoose County, Iowa)
(Main design: Warren through truss with sub-panels)
Built 1945
Warren through truss bridge on Iowa Southern Railway over Chariton River
Open to traffic

Isthmus Slough Bridge (Coos County, Oregon)
Built 1955, Replaced 2004
Through truss bridge over Isthmus Slough on FAS A-396
Replaced by a Concrete Box Girder Bridge in 2004

Italian Bar Road Bridge (Fresno County, California)
Built 1925, rebuilt 1951
Warren Pony truss bridge over Redinger Lake on Italian Bar Road
Replaced by a new bridge