There are 17,865 bridges in this category · Only showing 6,681 bridges with photos
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Structurally deficient

Morgan Bridge (Shelby County, Tennessee)
Built 1905
Arch bridge over the BNSF Railroad on Dudley Street in Memphis
Open to traffic

Morgan Bridge (Grant County, Oregon)
Built 1976
Polygonal Warren pony truss bridge over John Day River on CR 57 (Morgan Road)
Open to traffic

Morgan Road Bridge (Jefferson County, Indiana)
Built ca. 1910; rehabilitated 1935
Pony truss bridge over Middlefork Creek on Morgan Road in Big Oaks F&W Area.
Open to traffic but with access limited by request.

Morris Branch Bridge (Callaway County, Missouri)
Built 1935. Bypassed and abandoned 2001
Pony truss bridge over Morris Branch on CR 1053
Intact but closed to all traffic

Morris Bridge (Grundy County, Illinois)
Built 1934; rehabilitated 1978; replaced 2002
Lost five-span through truss bridge over the Illinois River on IL 47 at Morris
Replaced by modern bridge

Morris Road Bridge (Crawford County, Pennsylvania)
Built ca. 1935
Pony truss bridge over Western New York and Pennsylvania Railroad tracks on TR 653
Closed to all traffic

Morris Road Bridge (Montgomery County, Pennsylvania)
Built 1841; rehabilitated 1916
Stone arch bridge over Wissahickon Creek on Morris Road near Fort Washington, PA
Open to traffic

Morris Run Bridge (Bucks County, Pennsylvania)
Built 1908
Concrete deck girder bridge over Morris Run on Rickert Road
Closed To Traffic.

Morrison Creek Bridge (Sullivan County, Indiana)
Built ca. 1927
Pony truss bridge over Morrison Creek on CR 75 North
Open to traffic

Morrison-Bryan Road Bridge (Tehama County, California)
Built 1910
Lost Warren pony truss bridge over Burris Creek on Morrison-Bryan Road
Removed but not replaced

Morseville Bridge (Saginaw County, Michigan)
Built in 1885 by the Smith Bridge Company; bypassed in 2006
Pratt through truss bridge over Flint River on Burt Road (Old alignment)
Bypassed by a new bridge on a different alignment and abandoned

Morton Bridge (Ray County, Missouri)
Built 1889 by the Wrought Iron Bridge Co.
Through truss bridge over Crooked River on Landing Road
Open to traffic with 3 Ton Weight Limit

Morton- Minnesota River Crossing (Redwood County, Minnesota)
Built 1928; Replaced in 1997- road realigned at the same time.
Lost Parker through truss bridge over Minnesota River on Hwys. US 71 and MN 19
Replaced by new bridge

Mortonville Bridge (Chester County, Pennsylvania)
Built 1826. Reconstructed 2009.
Stone arch bridge over West Branch Brandywine Creek on Strasburg Road
Open to traffic. Reconstructed as a wider bridge, retaining the stone.

Mosby Creek Covered Bridge 37-20-27 (Lane County, Oregon)
Built in 1920. Restored in 1990.
Covered Howe through truss bridge on Mosby Creek Road
Open to traffic

Moscow Mills Bridge (Lincoln County, Missouri)
Built 1885 by Raymond and Campbell
Abandoned through truss bridge over the Cuivre River at Moscow Mills
Closed to all traffic

Moscow Road Viaduct (Sonoma County, California)
Built 1956
Concrete stringer bridge over Hillside on Moscow Road
Open to traffic

Moser Road Bridge (Somerset County, Pennsylvania)
Built 1900
Pinned Pratt Thru Truss bridge over Casselman River on TR 353 (Moser Road)
Open to traffic

Mosquito Creek Bridge (Dallas County, Iowa)
Built ca. 1880; closed 2009
Through truss bridge over Mosquito Creek on 255th Street
Intact but closed to all traffic

Mosquito Road Bridge (El Dorado County, California)
Built 1939
Suspension bridge over South Fork American River on Mosquito Road
Open to traffic

Moss Bluff Drawbridge (Calcasieu Parish, Louisiana)
Built 1968
Vertical lift bridge over West Fork Calcasieu River on LA 378 in Moss Bluff
Open to traffic

Moss Creek CR 508 Bridge (Carroll County, Missouri)
Built 1913
Pony truss bridge over Moss Creek on CR 508
Intact but closed to all traffic

Moss Creek Ditch Bridge (Carroll County, Missouri)
Built ca. 1930
Steel stringer bridge over Moss Creek Ditch on CR 508A
Closed to all traffic

Mossy Creek Route 613 Bridge (Augusta County, Virginia)
Built 1910
Pony truss bridge over Mossy Creek on Route 613
Open to traffic

Motley Slough Bridge (Lowndes County, Mississippi)
Built or relocated here 1925
Pony truss bridge over Slough Creek on Schaffer Chapel Road
Open to traffic

Mound Branch MO 52 Bridge (Bates County, Missouri)
Built 1928; demolished April 2010
Pony truss bridge over Mound Branch on MO 52
Demolished April 2010 to make room for US 71/MO 52 Interchange

Mound Creek CR 420 Bridge (Livingston County, Missouri)
Built ca. 1930
Pony truss bridge over Mound Creek on CR 420
Open to traffic

Mound Road Bridge (Shelby County, Indiana)
Built ca.1915
Through truss bridge over Flatrock River on Mound Road
Intact but closed to all traffic

Mount Carmel Bridge (Wabash County, Illinois)
Built 1932; rehabilitated 1987; Replaced 2011
Through truss bridge over Wabash River on IL 15/IN 64 in Mount Carmel
Demolished and replaced with a slab of concrete.

Mount Meridian Bridge (Augusta County, Virginia)
Built 1907 by the Champion Bridge Co.; Closed to all traffic in 1997
Three-span through truss bridge over Middle River on former Route 769
Closed to all traffic

Mount Si Road Bridge (King County, Washington)
Built 1904; rehabilitated 1955, Replaced 2008-09
Through truss bridge over Middle Fork Snoqualmie River on Mount Si Road in Tanner
Replaced by a NEW THROUGH TRUSS bridge in 2008

Mountain Creek Bridge (Cumberland County, Pennsylvania)
Built 1920
Steel stringer bridge over Mountain Creek on Ladnor Road, T-575
Open to traffic

Mountain Fork Bridge (Polk County, Arkansas)
Built 1905; damaged by flooding December 27, 2015
Two-span pony truss bridge over Mountain Fork River on CR 38 near Potter
Currently closed due to damage from Christmas Day 2015 flood

Mountain Fork River Bridge (McCurtain County, Oklahoma)
Built 1948
Through truss bridge over Mountain Fork River on US 70
Open to traffic Undergoing replacement with UCEB

Mountain Road Bridge (Hunterdon County, New Jersey)
Built 1910; rehabilitated 1978
Pony truss bridge over Raritan Valley Line on Mountain Road
Open to traffic

Mountville Road Bridge (Lawrence County, Pennsylvania)
Built 1940
Through truss bridge over Slippery Rock Creek on Mountville Road
Open to traffic

Mouth of Sabine Bridge (Jefferson County, Texas)
Built 1958
Swing bridge over Mouth of Sabine on TX 82 in Port Arthur
Replaced by a new bridge

Mower Road Bridge (Saginaw County, Michigan)
Built 1920
Concrete pony/through girder bridge over Cole Drain on Mower Road
Open to traffic

MS 18 Bayou Pierre Bridge (Copiah County, Mississippi)
Built ca. 1940
Through truss bridge over Bayou Pierre on MS 18
Open to traffic

Mt Murphy Road Bridge (El Dorado County, California)
Through girder bridge built 1915, 2 center spans destroyed by flooding and truss installed 1931
Through truss bridge over South Fork American River on Mt Murphy Road
Open to traffic

Mt Vernon Avenue Bridge (San Bernardino County, California)
Built 1934
Steel stringer bridge over BNSF RR, Amtrak, UP RR,W 3rd St on Mt Vernon Avenue
Open to traffic but with temporary supports on the south end

Mt. Orne Covered Bridge 45-05-03 / 29-04-08 (Coos County, New Hampshire)
Built 1911; rehabilitated 1988
Covered bridge over Connecticut River on Mt. Orne Road in Lancaster
Open to traffic

Mt. River Branch Road Bridge (Fannin County, Georgia)
Built 1985, Closed 2005
Deck truss bridge over Young Stone Creek on Mt. River Branch Road
Closed 2005 when new bridge was built next to it

Mt. Tabor Road Bridge (Gibson County, Indiana)
Built 1905
Concrete arch bridge over Yellow Creek on Mt. Tabor Road
Open to traffic

Mud Creek 200 East Bridge (Tipton County, Indiana)
Replaced 1998
Lost pony truss bridge over Mud Creek on CR 200 E
Replaced by new bridge

Mud Creek Bridge (Benton County, Iowa)
Built 1900
Pony truss bridge over Mud Creek on 25th Avenue
Open to traffic

Mud Creek Bridge (Buchanan County, Iowa)
Built 1953
Pony truss bridge over Mud Creek on 325th Street
Open to traffic

Mud Creek Bridge (Livingston County, Illinois)
Built 1901
Pony truss bridge over Mud Creek on TR 52A
Open to traffic

Mud Creek Bridge (Craig County, Oklahoma)
Built ca. 1930
Arch bridge over Mud Creek on E0050
Open to traffic

Mud Creek Bridge (Tulsa County, Oklahoma)
Built ca. 1930, removed in April 2009
Lost Pony truss bridge over Mud Creek on Campbell Creek Rd. in western Tulsa County
Replaced by new bridge

Mud Creek Bridge (Hardin County, Tennessee)
Built ca. 1930
Wooden bridge over Mud Creek on Lacefield Drive (NFA A302)
Open to traffic

Mud Creek Bridge (Polk County, Iowa)
Built ca. 1920
Pony truss bridge over Mud Creek on SE Vandalia Road
Open to traffic

Mud Creek Bridge (Tipton County, Indiana)
Built ca. 1920; replaced 1991
Lost pony truss bridge over Mud Creek on CR 50 E
Replaced by new bridge

Mud Creek Bridge (Cobb County, Georgia)
Built 1928
Warren pony truss bridge over Mud Creek on Old Dallas Road
Preserved immediately north of current roadway and culvert

Mud Creek Bridge (Henry County, Illinois)
Built 1920
Concrete pony/through girder bridge over Mud Creek on E 2720 St
Open to traffic

Mud Creek CR 1159 Bridge (Monroe County, Missouri)
Built 1930; later moved here
Pony truss bridge over Mud Creek on CR 1159
Open to traffic

Mud Creek Road Bridge (Calumet County, Wisconsin)
Built 1930
Concrete stringer bridge over Mud Creek on Mud Creek Road in Town of Stockbridge
Open to traffic

Mud Lick Creek Bridge (Ohio County, Indiana)
Built 1916; replaced 1990
Lost pony truss bridge over Mud Lick Creek on Downey Ridge Road
Replaced by new bridge

Mud River Bridge (Lincoln County, West Virginia)
Built 1917; rehabilitated 1980
Through truss bridge over Mud River on CR 7
Closed to Traffic

Mud Run CR 26T (Marseilles-Galion Rd.) Bridge (Marion County, Ohio)
Built 1940; rehabilitated 1984
Pony truss bridge over Mud Run on CR 26T (Marseilles-Galion Rd.)
Replaced by a new bridge

Muddy Boggy Creek Bridge (Choctaw County, Oklahoma)
Built 1919
Through truss bridge over Muddy Boggy Creek on E2010 Rd.
Open to traffic

Muddy Creek Bridge (Nemaha County, Kansas)
Built ca. 1930
Lost Queenpost pony truss bridge over Muddy Creek, 1.0 mi. west of Granada
Removed but not replaced

Muddy Creek Bridge (Richardson County, Nebraska)
Built 1953
Pony truss bridge over Muddy Creek on FAS 3645
Open to traffic

Muddy Creek CR 209 Bridge (Hamilton County, Ohio)
Built 1923; rehabilitated 1970
Through truss bridge over Muddy Creek on CR 209
Demolished.

Muddy Creek Old US 65 Bridge (Pettis County, Missouri)
Built 1924 by contractor M.E. Gillioz
Through truss bridge over Muddy Creek on Claycomb Road (Old US 65) north of Sedalia
Open to traffic

Muddy Run Bridge (Franklin County, Pennsylvania)
Built 1940; Removed 2013
Steel stringer bridge over Muddy Run on Pa 533;Sr 0533
Replaced by a new bridge in 2013

Mueller Bridge (Wilson County, Texas)
Built 1915 by the Alamo Construction Company; Closed to traffic in 1988
Pony truss bridge over Cibolo Creek on CR 337
Closed to all traffic

Mulberry Creek Bridge (Ford County, Kansas)
Built 1906; rehabilitated 1958
Through truss bridge over Mulberry Creek, 2.6 mi. south and 3.0 mi. west of Ford
Open to traffic

Mulberry Creek Bridge (Bates County, Missouri)
Built 1886 by the Missouri Valley Bridge & Iron Co.; later relocated here
Pony truss bridge over Mulberry Creek on 1002 Road, southeast of Amoret
Damaged irreparably by flood, replaced with concrete structure.

Mulberry Jefferson Road Bridge (Clinton County, Indiana)
Built 1895; replaced 1994
Lost through truss bridge over South Fork Wildcat Creek on Mulberry Jefferson Road at 280N-760W
Replaced by new bridge

Mulberry Relief Creek Bridge (Franklin County, Arkansas)
Built 1940
Steel stringer bridge over Mulberry Relief Creek on CR 67
Open to traffic

Mull Bridge (Shelby County, Indiana)
Built ca.1890
Through truss bridge over Little Blue River on CR 800 East
Intact but closed to all traffic

Mumma Ford Road Bridge (Carroll County, Maryland)
Built 1911; rehabilitated 1988 and summer 2011
Through truss bridge over Monocacy River on Mumma Ford Road
Open to traffic

Murdoch Avenue BNSF RR Overpass (St. Louis County, Missouri)
Built in 1930; demolished April 23rd, 2012. Replacement UCEB opened to traffic October 16th, 2012.
Lost concrete stringer bridge on Murdoch Avenue over the BNSF Railroad, just west of I-44
Replaced by UCEB

Murphy Drive Bridge (Caldwell County, Missouri)
Built ca. 1930; replaced 2009
Pony truss bridge over Long Creek on S.W. Murphy Drive
Replaced by a new bridge

Murray Bridge (Humboldt County, Iowa)
Built 1905 by A.H. Austin; rehabilitated 1982; damaged in car wreck during 2004
Through truss bridge over West Fork Des Moines River on 190th Street, southeast of Bradgate
Open to traffic

Muscatatuck River Bridge (Jackson County, Indiana)
Built ca. 1890; replaced 1994
Lost through truss bridge over Muscatatuck River on CR 740S
Replaced by new bridge

Muscatatuck River Bridge (Jackson County, Indiana)
Built 1914; replaced 1992
Lost through truss bridge over Muscatatuck River on CR 775S
Closed to all traffic

Muscatatuck River Bridge (Washington County, Indiana)
Built 1883; rehabilitated 1974; replaced 1992
Lost through truss bridge over Muscatatuck River on IN 39
Replaced by new bridge

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

Muscoot Reservoir Bridge (Westchester County, New York)
Built 1904
Steel deck arch bridge over Muscoot Reservoir on Lakeside Road
Closed to all traffic

Muskingum River CR 66 Bridge (Muskingum County, Ohio)
Built 1971 by the Ohio Bridge Corp.; rehabilitated 1971
Pony truss bridge over Muskingum River on CR 66
Open to traffic

Mussel Fork Route J Bridge (Macon County, Missouri)
Built 1958
Pony truss bridge over Mussel Fork on Route J
Open to traffic

Musselshell River Bridge (Musselshell County, Montana)
Built 1894
Through truss bridge over Musselshell River on CR 104
Open to traffic

Musselshell River Bridge (Musselshell County, Montana)
Built 1930
Through truss bridge over Musselshell River on CR 117
Open to traffic

Musselshell River Bridge (Musselshell County, Montana)
Built 1930
Through truss bridge over Musselshell River on CR 124
Open to traffic

Mustang Creek Bridge (Runnels County, Texas)
Built 1930
Pony truss bridge over Mustang Creek on CR 126
Open to traffic

Myers Creek Bridge (Curry County, Oregon)
Built 1924
Concrete tee beam bridge over Myers Creek on Meyers Creek Road (Old US 101)
Open to traffic

Myers Road Bridge (Warrick County, Indiana)
Built ca. 1920; rehabilitated 1987
Pratt bedstead pony truss bridge over Caney Creek on Myers Road
Open to traffic

Myrtle Creek Bridge (Curry County, Oregon)
Built 1925
Wooden bridge over Myrtle Creek on CR 500
Open to traffic

Mystic River Bridge (Middlesex County, Massachusetts)
Built 1906
Concrete arch bridge over Mystic River on MA 16 in Medford
Open to traffic

N. 45th Street Bridge (Milwaukee County, Wisconsin)
Built 1952
Pony plate girder bridge over Menomonee River on N 45th Street in Milwaukee
Open to traffic

N. 50th Street Menomonee River Bridge (Milwaukee County, Wisconsin)
Built 1976
Pony truss bridge over Menomonee River on N. 50th Street in Milwaukee
FOUND! This elusive bridge is well hidden but extant behind private property.

N. Hawley Road Bridge (Milwaukee County, Wisconsin)
Built 1917
Concrete arch bridge over Menomonee River on N. Hawley Road in Milwaukee
Replaced

Nachitoch Bluff Bridge (Clark County, Arkansas)
Built 1908 by the Morava Construction Co.; rehabilitated 1980; closed to traffic ca. 1996
Derelict two-span through truss over Little Missouri River, just upstream from I-30
Abandoned, with deck partially missing

Nacote Creek Bridge (Atlantic County, New Jersey)
Built 1904; rehabilitated 1952
Swing bridge over Nacote Creek on Smithville-Port Republic Road in Port Republic
Open To Traffic

Nahma Bridge (Delta County, Michigan)
Built 1917 by the Joliet Bridge & Iron Co.; closed to traffic in 1995; relocated Summer 2006
Pony truss bridge formerly over Sturgeon River on CR 497
Relocated to a golf course

Nantahala Bridge (Swain County, North Carolina)
Built ca. 1930; bypassed 2002
Pratt pony truss bridge over Nantahala River
Open to pedestrians

Nantahala River Bridge (Swain County, North Carolina)
Built 1930; rehabilitated 1960
Pratt pony truss bridge over Nantahala River on NC 1100
Open to traffic

Nantahala River Bridge (Swain County, North Carolina)
Built 1930; rehabilitated 1960
Pratt pony truss bridge over Nantahala River on NC 1100
Open to traffic