There are 17,841 bridges in this category · Only showing 6,641 bridges with photos
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Structurally deficient

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

Murray Morgan Bridge (Pierce County, Washington)
Opened Feb. 15, 1913; rehabilitated 1957; closed 2007; rehabilitated 2012-3
Vertical lift bridge over Foss Waterway on E. 11th Street in Tacoma
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 (Rosebud County, Montana)
Built 1930
Pony truss bridge over Musselshell River on CR 118
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

Napa Creek Bridge (Napa County, California)
Built 1920; replaced 2006
Lost stone arch bridge over Napa Creek on First Street in Napa
Replaced by new bridge 2006

Napa River Bridge (Napa County, California)
Built 1949; rehabilitated 1977, replaced 2005
Vertical lift bridge over Napa River on CA 121 in Napa
Replaced by new "Maxwell Bridge", 2005

Napoleon Road Bridge (Allen County, Ohio)
Built 1928
Concrete curved chord through girder bridge over Little Hog Creek on Napoleon Road
Open to traffic

Narrow Bay Bridge (Suffolk County, New York)
Built 1959
Bascule bridge over Narrow Bay on Floyd Parkway Extension in Shirley
Open to traffic

Narrowsburg Bridge (Wayne County, Pennsylvania)
Built 1954
Steel arch bridge over Delaware River on PA 652/NY 52
Open to traffic

Nashannock Creek Bridge (Mercer County, Pennsylvania)
Built 1922
Through truss bridge over Nashannock Creek on TR 401 (Old Mercer Road)
Open to traffic

Nashville Creek Bridge (Washington County, Illinois)
Built 1930
Lost Pony truss bridge over Nashville Creek on Pelican Road (TR 144B)
demolished, but remants exist on site

Nathanson Creek Bridge (Sonoma County, California)
Built 1910; rehabilitated 1990
Wooden bridge over Nathanson Creek on Chase Street in Sonoma
Open to traffic

Natick Bridge (Kent County, Rhode Island)
Built 1910, replaced 2013
Concrete arch bridge over Pawtuxet River on East Avenue in West Warwick
Replaced by a new bridge

Navasota River Bridge (Limestone County, Texas)
Built 1920
Pony truss bridge over Navasota River on CR 402
Open to traffic

Navesink River Bridge (Monmouth County, New Jersey)
Built 1939; rehabilitated 1970
Bascule bridge over Navesink River on CR 8A in Rumson
Open to traffic

NE 67 North Fork Little Nemaha River Bridge (Otoe County, Nebraska)
Built 1951
Pratt Through Truss bridge over North Fork Little Nemaha River on NE 67, at Lorton
Open to traffic, 20 ton weight limit

Neal Lane Covered Bridge 37-10-07 (Douglas County, Oregon)
Built 1939
Covered bridge over South Myrtle Creek on CR 124 in Myrtle Creek
Open to traffic

Neches River Relief Bridge (Houston County, Texas)
Built 1910
Pony truss bridge over Neches River Relief on CR 1155
Open to traffic

Nectar Covered Bridge 01-05-04x (Blount County, Alabama)
Built 1932; Destroyed by arson 1993
Lost covered bridge over Locust Fork River on Covered Bridge Road
Destroyed by fire

Neff Bridge (Huntingdon County, Pennsylvania)
Built 1889; rehabilitated 1974
Through truss bridge over Frankstown Branch Juniata River on PA 4005
Open to traffic

Nelson Street Bridge (Fulton County, Georgia)
Built 1906
Concrete tee beam bridge over Southern Railroad on Nelson Street in Atlanta
Closed to all traffic

Nelson Street Viaduct (Lexington, Virginia)
Built 1938
Deck plate girder bridge over Varner Lane on US 60 (E. Nelson Street) in Lexington
Open to traffic

Nemadji River Bridge (Douglas County, Wisconsin)
Built 1948; rehabilitated 1987; replaced 2003
Lost Polygonal Warren through truss bridge over Nemadji River on Sth 35
Replaced by new bridge

Neosho River Bridge (Neosho County, Kansas)
Built 1908 by A.M. Blodgett
Through truss bridge over Neosho River, 2.4 mi. west of Erie
Abandoned with deck removed

Neosho River Bridge (Neosho County, Kansas)
Built 1928
Through truss bridge over Neosho River, 1.2 mi. south and 0.4 mi. west of Erie
Open to traffic