There are 18,430 bridges in this category · Only showing 7,796 bridges with photos
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Structurally deficient

Minnow Slough Bridge No. 2 (Crawford County, Illinois)
Built 1909; rehabilitated 1982
Wooden deck bridge over Minnow Slough on TR 169A, 1.5 mi. NE Palestine
Open to traffic

Mispillion River Bridge (Kent County, Delaware)
Built 1903; Replaced 1994
Lost Steel stringer bridge over Mispillion River on Church Street
Replaced by a new bridge

Mission Creek Bridge (Brown County, Kansas)
Built 1905
Lost Bedstead pony truss bridge over Mission Creek in Horton
Lost

Mission Creek Bridge (Osage County, Oklahoma)
Built 1928
Through truss bridge over Mission Creek on D0079
Open to traffic

Mission Creek-Carlson Rd. Bridge (Shawnee County, Kansas)
Built ca. 1910; Replaced 2015
Through truss bridge over Mission Creek on Carlson Road
Replaced by a new bridge

Missisquoi River Bridge (Franklin County, Vermont)
Built 1929 by Pittsburgh-Des Moines Steel Co.; rehabilitated 1979
Parker through truss bridge over Missisquoi River on VT 105A ALT in Richford
Open to traffic

Mississinewa River Bridge (Delaware County, Indiana)
Built 1900 by the Indiana Bridge Company; replaced in 1993
Lost through truss bridge over Mississinewa River on CR 375 W
Replaced by new bridge

Mississippi County Road 307 Bridge (Mississippi County, Missouri)
Built 1921
Pony truss on CR 307 (Old US 60) near Birds Point over a drainage ditch emptying into Brewer Lake
Intact but closed to all traffic

Mississippi County Road 310 Bridge (Mississippi County, Missouri)
Built ca. 1922; relocated here 1966
Destroyed pony truss bridge over a drainage ditch on CR 310
Destroyed by flooding in May 2011

Mississippi County Road 314 Bridge (Mississippi County, Missouri)
Built 1922 as part of a bridge with at least two spans; relocated here in 1965
Pony truss bridge over Ditch 29 on CR 314, just off MO 77 south of Wyatt
Open to traffic

Mississippi County Road 319 Bridge (Mississippi County, Missouri)
Built 1922 as part of a bridge with at least two spans; relocated here 1965
Pony truss bridge over Ditch 29 on CR 319 just off MO 77
Open to traffic

Mississippi County Road 325 Bridge (Mississippi County, Missouri)
Built 1922; relocated here in 1966
Pony truss bridge over Spillway Ditch on CR 325 southeast of Charleston
Open to traffic on a gravel road

Mississippi County Road 518 Bridge (Mississippi County, Missouri)
Built ca. 1922; relocated here 1965; replaced Summer 2005
Lost pony truss bridge over Four Mile Pond Drainage Ditch on CR 518 just east of MO 102
Replaced by a new bridge

Mississippi County Road 521 Bridge (Mississippi County, Missouri)
Built 1923; relocated here 1965; damaged by flooding in 2011; replaced 2014
Lost pony truss bridge on CR 521 over Wilkinson Drainage Ditch
Replaced by a new bridge

Mississippi River Slough Bridge (Buffalo County, Wisconsin)
Built 1955
Lost pony truss bridge over Mississippi River Slough on WI 25 in Nelson
Removed and replaced

Missouri River Bridge (Fergus County, Montana)
Built 1959
Girder bridge over Missouri River on US 191
Open to traffic

Missouri Street Bridge (Washington County, Missouri)
Reconstructed 1968
Pony truss bridge over Breton Creek on Missouri Street in Potosi, just south of the courthouse
Open to traffic on a dead-end street

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

Mitcham Road Railroad Bridge (Meriwether County, Georgia)
Built 1945
Timber stringer bridge over Csx Railroad on Mitcham Road
Open to traffic

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 River Bridge (Old) (Barnstable County, Massachusetts)
Built 1936; rehabilitated 1980 replaced 2014
Wooden bascule bridge over Mitchell River on Bridge Street in Chatham
Replaced by a new bridge

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

Mittal Steel & Ns Rr Bridge (Hancock County, West Virginia)
Built 1927; rehabilitated 1968
Girder bridge over Mittal Steel & Ns Rr on Lee Avenue City St
Closed to all traffic

Mlk Blvd 2-2 Bridge (Cuyahoga County, Ohio)
Built 1943
Steel arch bridge over Doan Brook 2-2 on Mlk Blvd 2-2
Open to traffic

MN-7/CSAH-25 Overpass (Hennepin County, Minnesota)
Built 1939
Concrete deck girder bridge over MN 100 on MN 7 (CSAH 25)
Open to traffic

MN258 Cottonwood River Bridge (Brown County, Minnesota)
Built 1950; demolished and replaced 2012
Lost Parker through truss bridge over Cottonwood River on MN 258
Replaced by a new bridge

MO 215 Stockton Lake Bridge (Cedar County, Missouri)
Built 1966, Refurbished 2016
Steel deck girder bridge over Lake Stockton on MO 215
Open to traffic

MO 8 over Dry Fork Creek Bridge (Phelps County, Missouri)
Built 1948; rehabilitated 1985; replaced 2015
Lost steel stringer bridge over Dry Fork Creek on MO 8 and MO 68
Replaced by a new bridge

MO 96 Overpass (Jasper County, Missouri)
Built 1934
Concrete tee beam bridge over BNSF & MNA RR on MO 96 (Historic Route 66) in Carthage
Closed for replacement

MO YY Middle Fork Grand River Bridge (Worth County, Missouri)
Built 1927
Pony truss bridge over Middle Fork Grand River on Route YY (formerly MO 29)
Open to traffic

MO-H Roubidoux Creek Bridge (Pulaski County, Missouri)
Built 1955
Steel stringer bridge over Roubidoux Creek on Route H
Open to traffic

MO45 Bear Creek Bridge (Platte County, Missouri)
Built 1936; replaced 2009
Lost pony plate girder bridge over Bear Creek on MO 45
Replaced by a new bridge

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.

MoDOT Bridge (Cole County, Missouri)
Built ca. 1920; rehabilitated 1990
Closed pony truss bridge over Wears Creek off MoDOT Drive in Jefferson City
Closed to all traffic and posted against trespassing

Moenkopi Wash Bridge (Coconino County, Arizona)
Built 1915
Pony truss bridge over Moenkopi Wash on BIA Route N6731
Open to traffic

Moffett Mill Bridge (Beaver County, Pennsylvania)
Built 1929
Lost through truss bridge over Raccoon Creek on Moffet Mill Road
Replaced by a new bridge

Mohawk River Barge Canal Bridge (Montgomery County, New York)
Built 1932; rehabilitated 1993
Through truss bridge over Mohawk River Barge Canal on NY 80 in Nelliston
Open to traffic

Mohee Road Bridge (Blackford County, Indiana)
Built in 1894 by the Indiana Bridge Company, replaced in 1993.
Lost Warren Cantilever Bedstead pony truss bridge over Big Lick Creek on CR 350 W (Mohee Road)
Replaced by new bridge

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

Mohrsville Bridge (Berks County, Pennsylvania)
Built 1937
Steel stringer bridge over Schuylkill River on Sr 4026(Lr 06031)
Open to traffic

Mokelumne River Bridge (San Joaquin County, California)
Built 1942; rehabilitated 1978
Swing bridge over Mokelumne River on CA 12
Open to traffic

Molalla River Bridge (Clackamas County, Oregon)
Built 1936, Made One-Way in 1963
Warren deck truss bridge over Molalla River on Northbound OR-99 E
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

Monett Business US 60 Bridge (Barry County, Missouri)
Built 1935
Through truss bridge over BNSF RR on Business US 60 east of Monett
Open to two-lane traffic

Money Creek Bridge on Hook Lane (Fillmore County, Minnesota)
Built 1908
Warren Pony truss bridge over Money Creek on CR 192
Open to traffic

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

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 (Calhoun County, Michigan)
Built 1891; rehabilitated 1951
Stone arch bridge over Rice Creek on Monroe Street in Marshall
Open to traffic

Monsrud Bridge (Allamakee County, Iowa)
Built 1887 by the King Bridge Co.
Bowstring pony truss bridge over Paint Creek on Swebakken Road, now resides in Yellow River State Forest
Open to pedestrians only

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.

Montezuma Bridge (Parke County, Indiana)
Built 1949; rehabilitated 1987
Six-span through truss bridge over Wabash River on US 36 at Montezuma
Open to two-lane 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

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

Moonville Bridge (Madison County, Indiana)
Built 1930; replaced 1999
Lost pony truss bridge over Killbuck Creek on CR 600 N
Replaced by new bridge

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 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

Moores Creek Bridge (Chambers County, Alabama)
Built 1910
Pratt through truss bridge over Moores Creek on 19th Avenue in Valley
Closed

Mores Creek Bridge (Ada County, Idaho)
Built 1953
Steel arch bridge over Mores Creek (Lucky Peak Reservoir) on ID 21
Open to traffic

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.

Morgan Street Bridge (Winnebago County, Illinois)
Built 1916; rehabilitated 1960; replaced 2013
Concrete bridge over Rock River on Morgan Street, 0.2 mi. east of Main St
Gone in 2011. Replaced by a new bridge in 2013.

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
Removed but not replaced

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 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

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 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 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

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 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 in 1910 by the Lafayette Engineering Company
Pratt 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 Jackson Road Bridge (Lawrence County, Pennsylvania)
Built 1924; replaced 2001
Lost Pratt through truss bridge over Mahoning River on Mount Jackson Road (PA 108)
Replaced by a new bridge

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