There are 3,298 bridges in this category · Only showing 3,063 bridges with photos
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Pin-connected

Pin-connected is a type of construction where many of the truss members (especially the high-load members) are connected together by a pin, or bolt, that passes through holes in each of the members. This pin is typically threaded on both ends, smooth in the middle, and a lomas nut is used to tighten the members together.

Marlowe Creek Bridge (Worth County, Missouri)
Built 1885, Relocated Here in 1898; converted to vehicular use ca. 1981; rehabilitated 1996
Pratt Through truss bridge over Marlowe Creek on CR 287
Open to traffic single lane only

Martin Bridge (Lake County, Colorado)
Pony truss on a bike trail east of Leadville crossing CR 3
Open to two-lane bike traffic above and road traffic below

Martindale Bridge (Greene County, Indiana)
Built 1905
Pony truss bridge over Four Mile Creek on CR 600 West
Open to traffic

Mason Bridge (Texas County, Missouri)
Built 1926 by the Concrete & Steel Construction Co.
Lost through truss bridge over Big Piney River on Mason Road (Old MO 32) west of Licking
Removed after being closed for some time

Masonic Park Bridge (Rio Grande County, Colorado)
Built 1909 by the Pueblo Bridge Co.; relocated 1933; replaced 1994
Lost through truss bridge over the Rio Grande on Masonic Park Drive
Replaced by new bridge

Mattabesset River Bridge (Middlesex County, Connecticut)
Built 1880s or 1890s
Abandoned lenticular pony truss bridge over Mattabesset River on Unknown Road
Derelict/abandoned

Mauricetown Bridge (Cumberland County, New Jersey)
Built 1888
Pratt through truss bridge over Maurice River on Highland Street
Partial remains of bridge open to pedestrians only

MAW - Maumee River Bridge (Defiance County, Ohio)
Built 1893
Pratt through truss bridge over Maumee River on Maumee and Western Railroad
Open to rail traffic

Maybert Road Bridge (Nevada County, California)
Built 1915; replaced 2017
Pratt Pony truss bridge over Canyon Creek on Maybert Road
Replaced by a new bridge

MBTA - Merrimack River Bridge (Essex County, Massachusetts)
Built 1893
Warren deck truss bridge over Merrimack River on Railroad (MBTA)
Abandoned

MBTA - Shore Line Bridge (Suffolk County, Massachusetts)
Built 1898
Through truss bridge over Amtrak Northeast Corridor on MBTA Fairmount Line
Open to traffic

MC - Sandy River Bridge (Washington County, Maine)
Lost to flooding 1996
Lost Through truss bridge over Sandy River on Maine Central Railroad
Destroyed by flooding

McCall Bridge (Stone County, Missouri)
Built 1915 by contractor Fred L. Appleby; replaced 2002
Lost through truss bridge over James River on CR V-70
Replaced by new bridge and torn down

McCarty Creek Road Bridge (Tehama County, California)
Built 1937
Pin-connected Pratt Through truss bridge over McCarty Creek on McCarty Creek Road
Open to traffic

McClure Road Bridge (Darke County, Ohio)
Built 1882 by the Massillon Bridge Co.
Through truss bridge over Greenville Creek on McClure Road (TR 276)
Closed to all traffic

McGirt's Bridge (Bladen County, North Carolina)
Built 1923 by the Atlantic Bridge Co.; replaced ca. 1983
Lost through truss bridge over Cape Fear River on US 701
Replaced by a new bridge

McKeesport-Duquesne Bridge (Allegheny County, Pennsylvania)
Built 1927 by the American Bridge Co.
Through truss bridge over the Monogahela River on PA 2114 at Duquesne in North Versailles
Open to traffic

McKillip Ditch Bridge (White County, Indiana)
Unknown, but likely built on a county road and later acquired for private use.
Abandoned pratt pony truss bridge over McKillip Ditch on Field crossing
Abandoned with mostly intact but dilapidated deck

McKinley Bridge (St. Louis, Missouri)
Built 1910, closed to traffic in October 2001, reopened in 2007
Through truss bridge over the Mississippi River at St. Louis
Open to traffic

McPherson's Ford Bridge (Alleghany County, Virginia)
Built 1896; Rehabilitated in 1948, bypassed and preserved 2013
Through truss bridge over Cowpasture River on Route 633 (McKinney Hollow Rd)
Open to pedestrians only

ME/Amtrak Overpass (Union County, New Jersey)
Through truss bridge over Amtrak on Morristown & Erie Railway
Open to traffic

Mead Road Bridge (Clinton County, Michigan)
Built 1907
Through truss bridge over Maple River on Mead Road
Closed to all traffic

Meadow Lane Bridge (Hunterdon County, New Jersey)
Built 1900; rehabilitated 1991
Pony truss bridge over North Branch Rockaway Creek on Meadow Lane
Open to traffic

Meadow Road Bridge (Coos County, New Hampshire)
Built 1897 by the Groton Bridge Co..; Bypassed in 1984; Two center spans removed from river and placed on banks in 2004
Pin connected Pratt through truss bridge over Androscoggin River in Shelburne
Closed to all traffic

Meadowlake Park Bridge (Garfield County, Oklahoma)
Pony truss bridge over Boggy Creek on miniature railroad in Enid
Open to traffic

Meadowland Street Bridge (Minnehaha County, South Dakota)
Pratt through truss bridge over Big Sioux River on Meadowland Street (now private), 5 miles south of Baltic
Closed to all traffic

MEC - Carrabassett River Bridge (Somerset County, Maine)
Abandoned pratt through truss bridge over Carrabassett River on Maine Central Railroad
Abandoned

MEC - Kennebec River Bridge (Augusta) (Kennebec County, Maine)
Lost Bridge over Kennebec River on Railroad
Removed but not replaced; Supports still stand

Medford Avenue Bridge (Harrison County, Iowa)
Built 1900
Pennsylvania through truss bridge over Willow River on Medford Avenue
Open to traffic

Medicine Bow River Bridge (Carbon County, Wyoming)
Built 1914; rehabilitated 1972
Through truss bridge over Medicine Bow River on CN6-121
Open to traffic

Medicine Lodge River Bridge (Barber County, Kansas)
Built ca. 1910
Lost through truss bridge over Medicine Lodge River, 2.0 mi. north and 5.9 mi. west of Medicine Lodge
Removed but not replaced

Medicine River Bridge (Barber County, Kansas)
Built ca. 1910
Pratt through truss bridge over Medicine River, 2.0 mi. west of Medicine Lodge
Replaced by a new bridge

Medio Creek Bridge (Bee County, Texas)
Built 1897; Rehabbed 1923 and 1947; Closed 1987
Through truss bridge over Medio Creek on CR 241
Closed to traffic

Mehaffey Bridge (Older) (Johnson County, Iowa)
Built 1896; Removed 1959
Lost Pratt through truss bridge over Iowa River on Johnson County Road Y
Replaced by a new bridge

Meighen Bridge (Marshall County, West Virginia)
Built 1913 by the York Bridge Co.
Through truss bridge over Fish Creek on CR 7/4 (Fish Creek Road)
Open to traffic

Melrose Road Bridge (Hartford County, Connecticut)
Built 1888; Abandoned when State Route 140 superceded this portion of Melrose Road
Abandoned lenticular pony truss bridge over Scantic River on an abandoned section of Melrose Rd
Derelict/abandoned

Memorial Avenue Bridge (Lycoming County, Pennsylvania)
Built 1889 by the Groton Bridge Co.; center pier added 1925; replaced 1987
Lost through truss bridge over Lycoming Creek on Memorial Avenue (SR 3021) in Williamsport
Replaced by a new bridge

Memphis Charlestown Road Bridge (Clark County, Indiana)
Lost Bowstring through truss bridge over Silver Creek on Memphis Charlestown Road
Replaced by a new bridge

Menefee Ford Bridge (Ralls County, Missouri)
Built 1911 by Stupp Brothers
Pony truss bridge over Lick Creek on Indiana Lane south of Perry
Open to traffic

Merchants Bridge (St. Louis, Missouri)
Completed in May 1890; approaches rebuilt in 2005
Three-span through truss railroad bridge over the Mississippi River between St. Louis and Venice, Illinois on Terminal Railroad Assosiation
Open to two tracks of railroad traffic. Only one train is allowed to cross the bridge at a time, due to its age.

Merriam Street Bridge (Hennepin County, Minnesota)
Originally built 1887 by the King Iron Bridge Co. as a four-span truss bridge on Broadway Street; one span relocated here in 1987
Relocated through truss bridge over the Mississippi River (East Channel) on Merriam Street at Nicollet Island in Minneapolis
Open to traffic

Merrill Railroad Bridge (Lincoln County, Wisconsin)
Built 1914 using a relocated 1895 Truss
Abandoned pratt through truss bridge over Wisconsin River on Abandoned Milwaukee Road
Abandoned

Merrimac Bridge (Older) (Jefferson County, Iowa)
Built 1876, Replaced 1916
Lost Bowstring through truss bridge over Skunk River on Road
Replaced by a new bridge

MET - Dry Creek Bridge (Stanislaus County, California)
Deck plate girder bridge over Dry Creek on Modesto and Empire Traction Co. (MET)
Open to traffic

Metropolis Bridge (Massac County, Illinois)
Built 1917 by the American Bridge Co. under the direction of engineers C. H. Cartlidge and Ralph Modjeski
Six-span through truss bridge over the Ohio River on the Canadian National Railway at Metropolis
Open to railroad traffic

Meyers Road Bridge (Christian County, Illinois)
Through truss bridge over Sangamon River on TR 192, 5 mi. north of Mt Auburn
Derelict/abandoned

Michael R. Haverty Bridge (Jackson County, Missouri)
Built 1892 next to Missouri River; abandoned 1960, relocated to Union Station 2006
Through truss bridge over Railroad tracks at Union Station in Kansas City
Open to pedestrians

Middle Bar Bridge (Calaveras County, California)
Built 1912
Pratt through truss bridge over Mokelumne River on Middle Bar Road
Open to traffic

Middle Creek Bridge (Miami County, Kansas)
Built 1907
Through truss bridge over Middle Creek on 379th Street, 1.5 mi. south and 1.8 mi. west of New Lancaster
Open to traffic

Middle Fork Holston River Bridge (Smyth County, Virginia)
Built 1885 by the King Iron Bridge Co.; rehabilitated 2005
Pratt through truss bridge over Middle Fork Holston River on E. Chilhowie Street
Closed to traffic pending repairs to damaged endpost caused by drunk driver.

Middle Fork River Bridge (Upshur County, West Virginia)
Built in 1893 by the Canton Bridge Company of Canton, Ohio
Through truss bridge over Middle Fork River on CR 5/26
Open to traffic

Middle River Bridge (San Joaquin County, California)
Built 1915; rehabilitated 1975
Howe Through truss bridge over Middle River on CA 4
Open to traffic

Middle River Route 703 Bridge (Augusta County, Virginia)
Built 1915
Pony truss bridge over Middle River on Hewitt Rd (Route 703)
Open to traffic

Middle River Route 774 Bridge (Augusta County, Virginia)
Built 1903 by the Brackett Bridge Co.; Replaced 2010
Lost Pratt through truss bridge over Middle River on Cline River Road (Route 774)
Replaced by new bridge

Middleton Bridge (Warren County, New York)
Built 1896 by Groton Bridge Co.; rehabilitated 1969; closed 2009
Pin connected Pratt pony truss bridge over Schroon River on CR 10
Intact but closed to all traffic

Midland Fredericktown Road Bridge (Columbiana County, Ohio)
Built 1893 by the Penn Bridge Co.; rehabilitated 2004
Through truss bridge over North Fork Little Beaver Creek on Midland Fredericktown Road (TR 1038) in Calcutta
Open to traffic

Midland Valley - Poteau River Bridge (Le Flore County, Oklahoma)
Built 1903
Abandoned bridge. Originally carried Midland Valley Railroad, later county road over Poteau River, now abandoned. Wood deck remains on 1/2 of the bridge, then a gate and no deck beyond. Very large trestle approach (unphotographed) on East side.
Abandoned

Midvale Bridge (Washington County, Idaho)
Built 1911 by the J.H. Forbes Co.; replaced 1995
Lost two-span through truss bridge over Weiser River at Midvale
Replaced by new bridge

Milam Bridge (Bartow County, Georgia)
Abandoned sometime in the 1970's when this section of road was closed. According to the book "History of Bartow County" published in 1933, this was built in 1887
Abandoned camelback through truss bridge over Etowah River on Milam Bridge Rd
Abandoned with deck removed

Mile Corner Road Bridge (Cooper County, Missouri)
Replaced by new bridge in 1989
Abandoned through truss bridge over Petite Saline Creek on Mile Corner Road
Replaced by new bridge, but allowed to remain standing

Military Road Bridge (Older) (Woodbury County, Iowa)
Lost Pratt through truss bridge over Big Sioux River on Road
Replaced by a new bridge

Milk River Bridge (Blaine County, Montana)
Built 1910
Through truss bridge over Milk River on CR 308
Open to traffic

Milk River Bridge (Blaine County, Montana)
Built 1916
Timber and Steel Combination through truss bridge over Milk River on CR 178
Open to traffic

Milk River CR 507 Bridge (Valley County, Montana)
Built 1911; replaced 2002
Lost through truss bridge over Milk River on CR 507
Replaced

Mill City Trail - North Fork Santiam River Bridge (Marion County, Oregon)
Built 1888 near San Jose, CA, Relocated to Mill City 1919.
Pratt through truss bridge over North Fork Santiam River on Mill City Trail
Open to pedestrians

Mill Creek Bridge (Putnam County, Indiana)
Built 1925; rehabilitated 1985
Pony truss bridge over Mill Creek on CR 450 South
Open to traffic

Mill Creek Bridge (Adams County, Illinois)
Built 1894; replaced 1982
Lost Pratt through truss bridge over Mill Creek on Herleman Road (TR 76)
Replaced by new bridge

Mill Creek Bridge (Crawford County, Indiana)
Built 1885; rehabilitated 2000
Through truss bridge over Mill Creek on CR 220 East
Open to traffic

Mill Creek Bridge (Bourbon County, Kansas)
Abandoned Pratt through truss bridge over Mill Creek in Fort Scott
Abandoned with most of deck removed, but has intact walkway (cross at own risk)

Mill Creek Bridge (Cedar County, Iowa)
Built 1889 Abandoned mid 1970's
Abandoned pratt pony truss bridge over Mill Creek
Abandoned

Mill Creek Bridge (Rock Island County, Illinois)
Lost Pratt through truss bridge over Mill Creek on Road
Replaced by a new bridge

Mill Grove Bridge (Owen County, Indiana)
Through truss built in 1897 by the Massillon Bridge Company, pony truss added ca.1910 by the Rochester Bridge Company. Rehabilitated 2005
Through truss bridge over Mill Creek on CR 100 East (Tower Road)
Open to traffic

Mill Mountain Road Bridge (Luzerne County, Pennsylvania)
Built 1883 by the Penn Bridge Co.; rehabilitated 2011
Pony truss bridge over Nescopeck Creek on Mill Mountain Road (TR 356)
Intact but closed to all traffic

Mill Race Bridge (Fayette County, Iowa)
Built 1891; Relocated here 1926; Replaced 2004 but left standing
Warren through truss bridge over Turkey River on Pheasant Road near St. Lucas
Replaced by new bridge; old structure still standing

Mill Road Bridge (Livingston County, New York)
Former State Route 39 Bridge before highway rerouted to the east.
Pratt pony truss bridge over Little Conesus Creek on Wadsworth Park Trail
Open to pedestrians

Mill Road Bridge (Schenectady County, New York)
Relocated ca. 1983 from Parish, NY
Pratt pony truss bridge over Unnamed brook on Pedestrian Path
Open to pedestrians only

Mill Road Bridge (Darke County, Ohio)
Built 1881 by the Massillon Bridge Co.
Through truss bridge over Greenville Creek on TR 385 in Gettysburg
Open to pedestrians only

Mill Road Bridge (Bucks County, Pennsylvania)
Built 1888
Through truss bridge over Neshaminy Creek on Mill Road North of Jamison, PA
Currently closed to traffic

Mill Road Bridge (Scioto County, Ohio)
Built 1905; rehabilitated 1994
Camelback through truss bridge over Pine Creek on Mill Road (TR 262)
Open to traffic

Mill Road Bridge in Evansburg State Park (Montgomery County, Pennsylvania)
Built ca. 1895; rehabilitated ca. 1985
Pony truss bridge over Skippack Creek on PA 4005 (Mill Road) in Evansburg State Park
Open to traffic

Mill Spring Bridge (Wayne County, Missouri)
Built 1906 by the Vincennes Bridge Co.
Collapsed through truss bridge over Black River south of Mill Spring
Collapsed

Miller Bridge (Madison County, Iowa)
Built 1884
Pony truss bridge over a drainage ditch on McBride Trl
Open to pedestrians

Miller Ford Bridge (Gentry County, Missouri)
Built 1907 by the St. Joseph Bridge & Iron Co.; replaced 1997
Lost through truss bridge over Grand River on Old Havana Trail (CR 469)
Replaced by a new bridge

Miller Station Road Bridge (Crawford County, Pennsylvania)
Built 1887 by the Wrought Iron Bridge Co.
Through truss bridge over French Creek on PA 1016
Currently undergoing replacement- new culvert will take the old bridge's place...

Million Dollar Bridge (Valdez-Cordova Census Area, Alaska)
Built 1910 on the CR&NW Railroad; closed 1938; reopened as a highway bridge in 1958; fourth span collapsed in earthquake on March 27, 1964, collapsed span repaired 2005
Four-span through truss bridge over Copper River on Copper River Highway
Open to one-lane traffic

MILW - Adel Bridge (Old) (Dallas County, Iowa)
Built ?; Replaced 1943 with a pair of relocated spans
Lost Pratt through truss bridge over North Raccoon River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Replaced by a new bridge

MILW - Cedar River Bridge (Mower County, Minnesota)
Built 1886, Relocated Here 1911; To become a trail
Abandoned pratt through truss bridge over Cedar River on abandoned Milwaukee Road railroad
Abandoned

MILW - Cedar River Bridge #1 (King County, Washington)
Built 1907-1909
Through truss bridge over Cedar River on Private Road
Open to Seattle Public Utilities only

MILW - Cheyenne River Bridge (Pennington County, South Dakota)
Built 1907
Pratt through truss bridge over Cheyenne River on Former CMStP&P Railroad
Intact but closed to all traffic

MILW - Clark Fork River Bridge (Mineral County, Montana)
Abandoned warren deck truss bridge over Clark Fork River on Milwaukee Road
Abandoned

MILW - Hastings Swing Bridge (Old) (Dakota County, Minnesota)
Built 1891; Replaced 1981
Lost Warren through truss bridge over Mississippi River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Replaced by a new bridge

MILW - Maple River Bridge (Blue Earth County, Minnesota)
Built 1897, Relocated Here in 1910
Abandoned pratt through truss bridge over Maple River on Abandoned Milwaukee Road Railroad
Derelict/abandoned, possibly on private property

MILW - Mendota Swing Bridge (Hennepin County, Minnesota)
Built 1900, Removed 1957
Lost Warren through truss bridge over Minnesota River on Former Milwaukee Road
Removed but not replaced

MILW - Rock River Bridge (Old) (Ogle County, Illinois)
Built 1897, Replaced 1910
Lost Pratt through truss bridge over Rock River on Former Chicago, Milwaukee St. Paul & Pacific Railway
Replaced by a new bridge

MILW - Short Line Bridge (Old) (Hennepin County, Minnesota)
Built 1880; Replaced 1902
Lost Whipple deck truss bridge over Mississippi River on Chicago, Milwaukee, St. Paul & Pacific Railroad & Road
Replaced by a new bridge

MILW - St. Regis Bridge (Mineral County, Montana)
Built 1908
Abandoned warren deck truss bridge over Clark Fork River on Railroad (MILW)
Abandoned, approaches removed

Mine Road Bridge (Mercer County, New Jersey)
Built 1885; rehabilitated 1976
Through truss bridge over Stony Brook on Mine Road
Open to traffic

Mineola Bridge (Montgomery County, Missouri)
Probably replaced 1925 by a new truss bridge (also since replaced) on US 40
Lost through truss bridge over Loutre River at Mineola
Replaced by new bridge

Miner Street Bridge (Clear Creek County, Colorado)
Built 1902 by Kuyes and Work. Reconstructed 1990 (the trusses are no longer load-bearing).
Reconstructed pony truss bridge over Clear Creek on Miner Street in Idaho Springs
Open to traffic

Minnesota River Bridge (Redwood County, Minnesota)
Built 1910
Through truss bridge over Minnesota River on CR 17
Open to traffic