There are 18,855 bridges in this category · Only showing 8,327 bridges with photos
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Owned by county

Mississippi River Bridge (Cass County, Minnesota)
Built 1979
Stringer bridge over Mississippi River on Cty Hwy 18
Open to traffic

Mississippi River Bridge (Clearwater County, Minnesota)
Built 1982
Slab bridge over Mississippi River on Cty Hwy 40
Open to traffic

Mistaken Creek Bridge (Grayson County, Kentucky)
Built ca. 1920
Lost Bedstead pony truss bridge over Mistaken Creek on Yeaman-Olaton Road
Replaced by a new bridge

Mitchell Creek Bridge (Frontier County, Nebraska)
Built 1905
Pony truss bridge over Mitchell Creek on Lake Road (Road 734), 4.5 mi. south and 7.2 mi. east of Stockville
Open to traffic

Mitchell Road Bridge (Wood County, Ohio)
Built ca. 1900; rehabilitated 1936
Pony truss bridge over North Branch Portage River on Mitchell Road
Bridge demolished

Mixon Creek Bridge (Lavaca County, Texas)
Built 1936
Pony truss bridge over Mixon Creek on CR 213
Open to traffic

Mize Bridge (Haralson County, Georgia)
Built 1897, abandoned in 1982 when new bridge just to the south was built
Abandoned Pratt through truss bridge over Tallapoosa River on old alignment of Poplar Springs Road
Abandoned

MKT Nature & Fitness Trail - Hinkson Creek Bridge (Boone County, Missouri)
Built 1899
Pratt pony truss bridge over Hinkson Creek on MKT Nature & Fitness Trail
Open to pedestrians only

MKT R.R. Bridge (Mayes County, Oklahoma)
Built 1937
Steel stringer bridge over MKT R.R. on E0590 (old OK 33)
Open to One Lane Traffic

MNN - Marsh River Bridge (Norman County, Minnesota)
Built 1907
Abandoned deck plate girder bridge over Marsh River on Minnesota Northern Railroad
Derelict/abandoned

MNN - Unnamed Creek Bridge (Norman County, Minnesota)
Built 1913
Abandoned deck plate girder bridge over Unnamed Creek on Minnesota Northern Railroad
Derelict/abandoned

Modock Creek Bridge (Ottawa County, Oklahoma)
Built ca. 1930
Pony truss bridge over Modock Creek on E0125
Closed to traffic, with rubble piles at each end.

Modrow Road Bridge (Cowlitz County, Washington)
Built 1958
Steel arch bridge over Kalama River on Modrow Road
Open to traffic

Mohr Road Bridge (Greene County, Pennsylvania)
Built 1903
Pony truss bridge over Muddy Creek on TR 634
Open to traffic

Mollies Rock Road Bridge (Muskingum County, Ohio)
Built 1914 by C.W. Lane; probably replaced 1981
Lost through truss bridge over Symmes Creek on Nollies Rock Road (CR 40)
Open to traffic

Mollys Run Bridge (Jefferson County, Indiana)
Built 1905
Pony truss bridge over Mollys Run on Brooksburg Manville Road (CR 260N)
Removed and replaced

Monebrake Road Bridge (Preble County, Ohio)
Built 1910 by the York Bridge Co. of York, Pa.
Warren pony truss bridge over Seven Mile Creek on Monebrake Road
In storage or disassembled

Monegaw Creek NW 1001 Bridge (St. Clair County, Missouri)
Built ca. 1910 by the Standard Bridge Co.
Pony truss bridge over Monegaw Creek on CR NW 1001
Open to traffic

Money Creek Bridge (McLean County, Illinois)
Built 1929
Concrete tee beam bridge over Money Creek on FAS 473
Bypassed and open to pedestrians.

Moniteau Church Road Bridge (Moniteau County, Missouri)
Built ca. 1930
Pony truss bridge over Howard Creek on Moniteau Church Road southwest of Jamestown
Open to traffic

Moniteau Creek Road Bridge (Cole County, Missouri)
Built 1915-16 by the Kansas City Bridge Co.; made obsolete by a new bridge on MO 179 in 1967
Through truss bridge over Moniteau Creek on Moniteau Creek Road (Old MO 179)
Closed

Monitor Road Bridge (Hall County, Nebraska)
Built ca. 1935
Pony truss bridge over Prairie Creek on Monitor Road
Open to traffic

Monitor-Mckee Road Bridge (Marion County, Oregon)
Built 1950
Parker through truss bridge over Pudding River on Monitor-Mckee Road
Open to traffic

Monkey Jack Bridge (Henry County, Indiana)
Built in 1910, closed in 1970's
Pony truss bridge over Big Blue River on CR 225 West
Closed to all traffic with deck missing

Monocacy Bridge (Berks County, Pennsylvania)
Built 1912; rehabilitated 1954
Concrete arch bridge over Monocacy Creek on TR 458
Open to traffic

Monocacy River Bridge (Carroll County, Maryland)
Steel stringer bridge over Monocacy River on Keysville Fr Co Road
Open to traffic

Monon High Bridge Trail - IN 25 Overpass (Carroll County, Indiana)
Built 1963
Steel stringer bridge over IN 25 on Delphi Historic Trail/Monon High Bridge Trail
Open to pedestrians

Monroe Bridge (Lincoln County, Missouri)
Lost through truss bridge over West Fork Cuivre River on Fairview Church Road northeast of Truxton
Replaced by a new bridge

Monroe Street Bridge (Bergen County, New Jersey)
Built 1908; rehabilitated 1997
Concrete arch bridge over Passaic River on Monroe Street in Garfield
Open to traffic

Montana Road Bridge (Boone County, Iowa)
Built ca. 1920
Pony truss bridge over Honey Creek on Montana Road
Open to traffic

Montegue Road Bridge (Winnebago County, Illinois)
Built 1936
Concrete rigid frame bridge over E Branch Mill Creek on Montague Road
Demolished

Monterey Tippecanoe River Bridge (Pulaski County, Indiana)
Built 1948
Pony truss bridge over Tippecanoe River on CR 625 East in Monterey
Open to pedestrians only, New UCEB built on East side of this structure.

Montesano-Elma Road Bridge (Grays Harbor County, Washington)
Built 1938
Warren through truss bridge over Satsop River on Montesano-Elma Road in Elma
Open to traffic

Montevideo Road Bridge (Montgomery County, Maryland)
Built 1910; rehabilitated 1989
Pony truss bridge over Dry Seneca Creek on Montevideo Road in Poolesville
Open to traffic

Montgomery Creek Bridge (Boone County, Iowa)
Built 1923; replaced 2015
Lost pony truss bridge over Montgomery Creek on W Avenue
Replaced by a new bridge

Montgomery Ditch CR 200W Bridge (Tippecanoe County, Indiana)
Built 1925; rehabilitated 1964
Pony truss bridge over Montgomery Ditch on CR 200W
Replaced by a new bridge

Montgomery Woods Bridge (Mendocino County, California)
Built 1971
Steel stringer bridge over South Fork Big River on Orr Springs Road
Open to traffic

Montour Run Bridge (Columbia County, Pennsylvania)
Built ca. 1880; rehabilitated 1927
Stone arch bridge over Montour Run on TR 356 in Bloomsburg
Open to traffic

Monument Road Bridge (Harris County, Georgia)
Built 1930
Pony truss bridge over Sand Creek on Monument Road
Closed to all traffic

Moody Creek Bridge (Shasta County, California)
Built 1918
Concrete tee beam bridge over Moody Creek on Cascade Blvd
Open to traffic

Moon Branch Creek Bridge (Lyon County, Kansas)
Built 1928
Concrete stringer bridge over Moon Branch Creek on Rd H 939.0-544.1
Open to traffic

Moon Creek Bridge (Mahaska County, Iowa)
Built 1961
Pony truss bridge over Moon Creek on CR G19/133rd Street
Open to traffic

Moon Creek Road Bridge (Grant County, Oregon)
Built 1924; rehabilitated 1968
Polygonal Warren pony truss bridge over John Day River on CR 45 (Moon Creek Road)
Open to traffic

Moonville Rail Trail - Moonville Tunnel (Vinton County, Ohio)
Built 1857 and abandoned in 1989
Abandoned tunnel with approach that crosses Raccoon Creek on CSX line between Cumberland, Maryland and Cincinnati
Abandoned, but used by pedestrians

Moore Bridge (Knox County, Missouri)
Built 1909 by John Moore
Pony truss bridge over North Fork South Fabius River on CR 24
Open to traffic

Moore Ford Bridge (Putnam County, Indiana)
Built 1908; Replaced 2003
Lost pony truss bridge over Little Deer Creek on Devil Backbone Road
Replaced

Moore Lake Bridge (Leflore County, Mississippi)
Built 1916
Abandoned through truss bridge over Moore Lake on CR 73
Bypassed by a new bridge built in 1995

Moore Road Bridge (Bedford County, Tennessee)
Built 1902; moved 1914, 1952; replaced 1984
Lost Pratt through truss bridge over North Fork Creek on Moore Road
Replaced by new bridge

Moore's Crossing Bridge (Travis County, Texas)
Built 1884 at Congress Avenue; Two Spans Moved Here In 1922; Closed to vehicular traffic in 1981
Through truss bridge over Onion Creek on Moores Bridge Rd
Open to pedestrians

Moots Creek Bridge (White County, Indiana)
Built ca.1925 on a state highway; moved to this location in 1963 and replaced in 2003.
Lost through truss bridge over Moots Creek on CR 100 East
No longer exits

MoPac - West Barretts Tunnel (St. Louis County, Missouri)
Built between 1851-53 by the Pacific (later MO Pacific) Railroad for a single broad gauge track; Gauge standardized in 1869. Tunnel remained in service until congestion caused the railroad to bypass the tracks via a cut 100' to the south in 1944.
Tunnel under a hill in Kirkwood, MO on former Missouri Pacific Railroad
Abandoned

Morehead Bridge (Jackson County, Iowa)
Built or relocated 1982
Through truss bridge over South Fork Maquoketa River on 74th Street
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 County Bridge #96 (Morgan County, Indiana)
Built 1895; rehabilitated 2002
Pony/through plate girder bridge over Branch of Lake Ditch on Ditch Road
Open to traffic

Morgan Road Bridge (Lee County, Illinois)
Built 1958
Slab bridge over Green River on Morgan Road 1.6 mi S or Amboy
Open to traffic

Morganford Road UPRR Overpass (St. Louis, Missouri)
Built in 1946; rehabilitated in1952. Replaced by UCEB in 1995.
Lost girder bridge over the Union Pacific Railroad on Morganford Road in St. Louis
Replaced by UCEB

Morganville Bridge (Clay County, Kansas)
Built 1927
Lost through truss bridge over Republican River, 0.5 mi. south and 1.3 mi. west of Morganville
Lost

Morlot Avenue Passaic River Bridge (Bergen County, New Jersey)
Built 1904; rehabilitated 2008
Pony truss bridge over Passaic River on Morlot Ave (Cr 78)
Open to traffic

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 Creek Bridge (Le Flore County, Oklahoma)
Built 1952
Steel stringer bridge over Morris Creek on N4720 (Old US 59)
Open to traffic

Morris Mill Bridge (Giles County, Tennessee)
Built 1884 by the Penn Bridge Works; Closed to traffic in 1980's
Abandoned warren pony truss bridge over Big Creek
Abandoned

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

Morrison Bridge (Multnomah County, Oregon)
Built 1958
Bascule bridge over Willamette River on Morrison Street in Portland
Open to traffic

Morrison Covered Bridge 13-98-B (Whiteside County, Illinois)
Built 2001
Modern covered bridge over Rock Creek on Crosby Road in Morrison
Open 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 Creek Bridge (Sullivan County, Indiana)
Built ca. 1935
Concrete stringer bridge over Morrison Creek on CR 50 N
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

Morse Creek Bridge (Osage County, Kansas)
Built 1925
Steel stringer bridge over Morse Creek on 293rd St 147
Open to traffic

Morse Near Bridge (Oceana County, Michigan)
Replaced 1998
Lost Warren pony truss bridge over North Branch Pentwater River on 96th Avenue
Replaced by new bridge

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 (Allen County, Indiana)
Built ca.1880 by the Western Bridge Works of Fort Wayne
Whipple through truss bridge over St. Marys River on Marion Center Road
Open to traffic

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 County WPA Bridge (Morton County, Kansas)
Built 1936 by the Works Progress Administration
Five-span stone arch bridge over a branch of Cimarron River, 4.0 mi. north and 6.0 mi. west of Richfield
Open to traffic

Morton's Highway Crossing (Kalamazoo County, Michigan)
Built 1904; Replaced 1992
Lost concrete through arch bridge over Amtrak/Conrail Railroad on O Avenue near Oshtemo
Replaced by new bridge

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 Covered Bridge 14-70-07 (Rush County, Indiana)
Built 1886 by E. L. Kennedy; rebuilt 2010 by Dan Collom & Sons
Two-span covered bridge over Flatrock River on CR 900S at Moscow
Damaged by a tornado on June 3, 2008. Bridge rebuilt using old and new materials.

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

Mosel Avenue Bridge (Kalamazoo County, Michigan)
Built 1924; Altered 1953; Deck resurfaced 1985; Replaced 1990
Lost Concrete pony arch bridge over Kalamazoo River on Mosel Avenue in Kalamazoo
Replaced by new bridge

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

Mosley Bridge (Jackson County, Minnesota)
Built 1939; replaced in 2012
Timber stringer bridge over Jud Ditch # 8 on Cnty 66
Replaced by a new bridge

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 Creek Bridge (Nemaha County, Kansas)
Built pre 1900.
Pratt pony truss bridge over an Mosquito Creek, 1.0 mi. south and 1.0 mi. west of Wetmore
Derelict/abandoned

Mosquito Lake Road Bridge (Whatcom County, Washington)
Built 1915; Moved here and modified 1951; Rehabilitated in 2010
Through truss bridge over Middle Fork Nooksack River on Mosquito Lake Road
Open to traffic

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

Mossdale Swing Bridge (San Joaquin County, California)
Built 1917; Replaced 1926
Lost Pratt through truss bridge over San Joaquin River on Road
Replaced by a new bridge

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

Motor Mill Bridge (1899) (Clayton County, Iowa)
Built 1899, One span destroyed by flooding in 1991, the other in 2008. Replica spans installed in late 2012
Pratt through truss bridge over Turkey River on Galaxy Road
Destroyed by flooding in 2008; replica spans now in place and open to traffic

Mott Street Bridge (Pike County, Pennsylvania)
Built 1902 by Penn Bridge Co.
Through truss bridge over Sawkill Creek on TR 426 in Milford
Closed to all traffic

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 in 1910 by the Lafayette Engineering Company
Pratt through truss bridge over Flatrock River on Mound Road
Intact but closed to all traffic

Mount Moriah Road Bridge (Cooper County, Missouri)
Built 1913 by Kansas City Bridge Co.; replaced 2003-04
Lost through truss bridge over Lamine River on Mount Moriah Road near Clifton City
Replaced by a modern concrete bridge

Mount Olive Bridge (Perry County, Tennessee)
Built 1913
Abandoned through truss bridge over Buffalo River on Old TN Highway 13
Abandoned

Mount Olive Road Covered Bridge 35-82-04 (Vinton County, Ohio)
Built 1875 by G. W. Pilcher; rehabilitated 1963
Covered bridge over Middle Fork Salt Creek on TR 8 (Mt. Olive Road)
Open to pedestrians only

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

Mount Sterling Bridge (Van Buren County, Iowa)
Lost Pratt through truss bridge over Fox River on Road
Replaced by a new bridge

Mount Tabor Road Bridge (Washington County, Indiana)
Built ca. 1930
Concrete arch bridge over Mill Creek on Mount Tabor Road
Open to traffic

Mount Vernon Road Bridge (Old) (Linn County, Iowa)
Built ?; Replaced 1969
Lost Warren through truss bridge over Indian Creek on Mount Vernon Road
Replaced by a new bridge

Mountain Fork River CR 38 Bridge (Polk County, Arkansas)
Built 1905
Two-span pony truss bridge over Mountain Fork River on CR 38 near Potter
Open to one lane traffic