Lock Springs Bridge (Daviess County, Missouri)
Built 1927 by Chillicothe Iron Co.; replaced 1990
Lost through truss over Grand River on CR 127 (Topper Road) west of Lock Springs
Replaced by a concrete bridge

Locust Creek Covered Bridge (Linn County, Missouri)
Built 1868 by Bishop and Eaton
Covered bridge over the old channel of Locust Creek between Laclede and Meadville off US 36
Open to pedestrians only

Locust Creek Route B Bridge (Linn County, Missouri)
Built or relocated here in 1938
Through truss bridge over Locust Creek on Route B, west of Linneus
Open to two-lane traffic

Log Creek MO 13 Bridge (Caldwell County, Missouri)
Built 1930; rehabilitated 1940
Through truss bridge over Log Creek on MO 13 in Kingston
Open to traffic

Log Lick Creek Bridge (Switzerland County, Indiana)
Built 1882
Through truss bridge over Log Lick Creek on Dead End Road
Closed to all traffic

Logan Mills Covered Bridge (Clinton County, Pennsylvania)
Built 1874
Covered bridge over Fishing Creek on Logan Mills Road
Open to traffic

Long Creek Bridge (Taney County, Missouri)
Built 1956
Cantilevered through truss bridge on MO 86 over Long Creek (Table Rock Lake)
Open to two-lane traffic

Long Shoals Bridge (Bourbon County, Kansas)
Built 1902 by the Midland Bridge Co.
Abandoned through truss bridge over Little Osage River, 5.0 mi. east and 1.0 mi. south of Fulton
Closed to all traffic

Lost Creek Bridge (Bourbon County, Kansas)
Built 1888
Through truss bridge over Lost Creek, 3.0 mi. east and 0.3 mi. north of Mapleton
Closed to all traffic

Lost River Bridge (Orange County, Indiana)
Through truss bridge over Lost River on CR 520 West
Open to traffic

Louisiana Railroad Bridge (Pike County, Missouri)
Built 1872-73
Through truss swing railroad bridge over the Mississippi River at Louisiana
Open to train traffic

Loutre River Katy Trail Bridge (Montgomery County, Missouri)
Built 1897 by the A&P Roberts Co. of Pencoyd, Pennsylvania
Through truss bridge over Loutre River on the Katy Trail (former MKT Railroad), just west of McKittrick
Open to pedestrians only

Lower Elgin Road Bridge (Bastrop County, Texas)
Built 1910
Through truss bridge over Wilbarger Creek on Lower Elgin Road
Open to pedestrians only

Lowndes Bridge (Wayne County, Missouri)
Built ca. 1920; closed to all traffic 2008
Through truss bridge over Bear Creek located at the Iron Bridge Conservation Area
Closed to all traffic

Lupus Bridge (Moniteau County, Missouri)
Built 1894 by the Kansas City Bridge & Iron Co.; replaced 1995
Through truss bridge formerly over Splice Creek on Ridge Road (CR 4) near Lupus
Relocated to private property next to creek

Lusk Creek Bridge (Pope County, Illinois)
Built 1934
Through truss bridge over Lusk Creek on Eddyville Road (FAS 930), southeast of Eddyville, 3.25 mi. southeast of Eddyville
Open to two-lane traffic

MacArthur Bridge (St. Louis, Missouri)
Built 1907-1917 by the City of St. Louis to break the monopoly of the Terminal Railroad Association, which controlled the two other bridges at St. Louis and charged unreasonable tolls.
Three-span through truss bridge over the Mississippi River in St. Louis, south of the Poplar Street Bridge
Open to railroad traffic only

Mace Creek Bridge (Andrew County, Missouri)
Built ca. 1925
Through truss bridge over Mace Creek on CR 392
Open to traffic

Madison Bridge (St. Francis County, Arkansas)
Built 1933 by the Wisconsin Bridge & Iron Co. of Milwaukee
Through truss bridge with center swing span over St. Francis River on US 70 near Madison
Open to traffic

Madison-Milton Bridge (Jefferson County, Indiana)
Built 1928-29; rehabilitated 1997
Cantilevered through truss bridge over Ohio River on US 421 between Madison, IN, and Milton, KY
Open to traffic

Magazine Middle Bridge (Logan County, Arkansas)
Made obsolete by new bridge in 1982
Closed through truss bridge over Petit Jean River on Old AR 109 south of Magazine
Bypassed by modern bridge

Magazine Third Bridge (Logan County, Arkansas)
Built 1938 by the Vincennes Bridge Co.; closed to traffic ca. 1998
Through truss bridge over Petit Jean River on Old AR 109 (CR 277) south of Magazine
Closed to all traffic

Main Street Bridge (Duval County, Florida)
Built 1941
Vertical lift bridge over St. Johns River on US 1 (Main Street) in Jacksonville
Open to four-lane traffic

Mansfield Covered Bridge (Parke County, Indiana)
Built 1867 by J.J. Daniels; rehabilitated 1990
Covered bridge over Big Raccoon Creek on CR 620 South
Open to traffic

Manzanola Bridge (Otero County, Colorado)
Originally built 1911 by the Patterson-Burghardt Bridge Co. over the Colorado River at Clifton near Grand Junction. Relocated here in 1950; replaced 1984.
Lost through truss bridge over the Arkansas River on CO 207
Replaced by modern bridge

Maple Road Bridge (Minnehaha County, South Dakota)
Through truss bridge over Big Sioux River on former Maple Road in Sioux Falls
Open to pedestrians only

Marais des Cygnes River Bridge (Franklin County, Kansas)
Parker through truss bridge over Marais des Cygnes River on Burlington Northern Santa Fe Railroad
Open to traffic

Marais des Cygnes River Bridge (Franklin County, Kansas)
Warren through truss bridge over Marais des Cygnes River on Abandoned Railroad Grade - formerly Missouri Pacific Railroad.
Closed to all traffic

Marais des Cygnes River Bridge (Osage County, Kansas)
Pratt through truss bridge over Marais des Cygnes River on Burlington Northern Santa Fe Railroad
Open to traffic

Marias Des Cygnes River Bridge (Miami County, Kansas)
Built ca. 1920
Through truss bridge over Marias Des Cygnes River on 347th Street, 1.3 mi. east of Osawatomie
Open to traffic

Maries River CR 608 Bridge (Osage County, Missouri)
Built ca. 1915
Twin through truss bridge over Maries River on CR 608 northeast of Westphalia
Open to traffic with a 7 ton weight limit

Marion Memorial Bridge (Marion County, Tennessee)
Built 1929; tolls removed 1947; rehabilitated 1966
Through truss bridge over Nickajack Lake (Tennessee River) on US 41/US 64/US 72/TN 2 (Dixie Highway)
Open to two-lane traffic

Mark Road Bridge (Fayette County, Ohio)
Built 1883 by the Wrought Iron Bridge Co.; reconstructed 2007
Through truss bridge over Sugar Creek on Mark Road
Open to traffic

Mark Twain Bridge (Marion County, Missouri)
Opened Sept. 4, 1936; tolls removed Oct. 30, 1940; rehabilitated 1982; replaced and demolished 2000
Lost through truss bridge over the Mississippi River on US 36 at Hannibal
Replaced by the new I-72 bridge

Marquand Bridge (Madison County, Missouri)
Old bridge built 1924 at a cost of about $4,000, raised by the community. Replaced 1993.
Lost through truss bridge over Castor River on Route A at Marquand
Replaced by concrete span; portion of old bridge now rests in Marquand City Park

Marshall Covered Bridge (Parke County, Indiana)
Built 1917 by J.A. Britton
Covered bridge over Rush Creek on CR W800N
Open to traffic

Martin Bridge (Ouachita County, Arkansas)
Lost swing through truss bridge over Ouachita River at Camden
Replaced in 1947 by the Ben Laney Bridge

Martin Luther King Bridge (St. Louis, Missouri)
Built 1951; rehabilitated 1987
Cantilevered through truss over the Mississippi River in downtown St. Louis
Open to four-lane traffic

Mary's River Covered Bridge (Randolph County, Illinois)
Built 1854; carried traffic until 1930; rehabilitated 1954 and 2004-05
Covered bridge over Little Mary's River northeast of Chester, just off IL 150
Open to pedestrians only

Marys River Railroad Bridge (Randolph County, Illinois)
Through truss bridge over Marys River on the Union Pacific Railroad, south of Chester and just west of IL 3
Open to railroad traffic

Mason Bridge (Texas County, Missouri)
Built 1926
Closed through truss bridge over Big Piney River on Mason Road (Old MO 32) west of Licking
Closed to all traffic

Matheson Railroad Bridge (Elbert County, Colorado)
Originally built 1883 by the American Bridge Co. as an eight-span bridge at Colona, Illinois, over the Rock River. Two spans relocated here in 1920 to replace an 1899 trestle. Rails removed in 1992.
Abandoned two-span through truss bridge over Big Sandy Creek on the Rock Island Railroad east of Matheson
Railroad line discontinued with tracks removed

Maumelle River AR 300 Bridge (Pulaski County, Arkansas)
Made obsolete by a new bridge in 1981
Through truss bridge over Maumelle River on AR 300
Open to pedestrians only

McAlister Covered Bridge (Parke County, Indiana)
Built 1914 by J.A. Britton; rehabilitated 1977
Covered bridge over Little Raccoon Creek on CR E400S
Open to traffic

McClugage Bridge (Peoria County, Illinois)
Eastbound bridge built 1948; westbound bridge built 1982
Pair of cantilevered through truss bridges over the Illinois River on US 24/US 150 in Peoria
Open to four lanes of traffic

McColly Covered Bridge (Logan County, Ohio)
Built 1876 by the Anderson Green Co.; rehabilitated 2000
Three-span covered bridge over Great Miami River on CR 13
Open to traffic

McConnell's Mill Covered Bridge (Lawrence County, Pennsylvania)
Built 1874; rehabilitated 1957 and 1998
Covered bridge over Slippery Rock Creek in McConnells Mill State Park
Open to 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

McKinley Bridge (St. Louis, Missouri)
Dedicated Nov. 10, 1910; closed to traffic in Oct. 2001; reopened 2007
Three-span through truss bridge over the Mississippi River between St. Louis and Venice, Illinois
Open to traffic

McLain Covered Bridge (Licking County, Ohio)
Built 1871
Relocated covered bridge at Firemans Park in Alexandria
Open to pedestrians only

McLean Branch MO 79 Bridge (Lincoln County, Missouri)
Built 1938
Through truss bridge over McLean Branch on MO 79 at Winfield
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

Mecca Covered Bridge (Parke County, Indiana)
Built 1873 by J.J. Daniels; closed to traffic 1964; rehabilitated 1993
Covered bridge over Big Raccoon Creek on CR 136, northeast of Mecca
Open to pedestrians only

Mechanicsville Covered Bridge (Ashtabula County, Ohio)
Built 1867; rehabilitated 2003
Covered bridge over Grand River on Windsor-Mechanicsville Road
Open to traffic

Medora Covered Bridge (Jackson County, Indiana)
Built 1875 by J.J. Daniels; closed to traffic in 1972
Three-span covered bridge over East Fork White River just off IN 235, east of Medora
Open to pedestrians only

Melcher Covered Bridge (Parke County, Indiana)
Built 1896 by J.J. Daniels; rehabilitated 1977 and 1995
Covered bridge over Leatherwood Creek on CR W20N
Open to traffic

Memorial Park Covered Bridge (Auglaize County, Ohio)
Built 1992
Modern covered bridge over St. Mary's River in Memorial Park at St. Mary's
Open to pedestrians only

Memphis-Arkansas Bridge (Shelby County, Tennessee)
Built 1949
Cantilevered through truss bridge over the Mississippi River on I-55 at Memphis
Open to four lanes of traffic

Mengo Bridge (Butler County, Missouri)
Built 1906 by the American Bridge Co.
Two-span through truss bridge over Black River on the Union Pacific Railroad, between Poplar Bluff and Hilliard
Still in use

Merchants Bridge (St. Louis, Missouri)
Completed May 1890
Three-span through truss railroad bridge over the Mississippi River between St. Louis and Venice, Illinois
Open to railroad traffic only

Meridian Bridge (Yankton County, South Dakota)
Built 1924; rehabilitated 1953
Vertical-lift through truss bridge over the Missouri River on US 81 at Yankton
Open to traffic

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

Metrolink Footbridge (St. Louis, Missouri)
Cantilevered truss bridge over the Metrolink on a footpath at the east edge of Forest Park
Open to foot traffic

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

Miami Bridge (Saline County, Missouri)
Built 1939; rehabilitated 1983
Cantilevered through truss bridge over the Missouri River on MO 41 at Miami
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 Little Maquoketa River Bridge (Dubuque County, Iowa)
Built 1915
Lost through truss bridge over Middle Fork Little Maquoketa River on a local road
No longer exists

Middle River Bridge (Madison County, Iowa)
Built 1932
Through truss bridge over Middle River on a local road
Open to traffic

Middle River Katy Bridge (Callaway County, Missouri)
Built 1926 by the American Bridge Co.
Through truss bridge over Middle River on the Katy Trail (former MKT Railroad)
Open to pedestrians and bicyclists only

Middle River Route 774 Bridge (Augusta County, Virginia)
Built 1903
Through truss bridge over Middle River on Route 774
Open to one-lane traffic

Middle River Route 775 Bridge (Augusta County, Virginia)
Built 1908
Through truss bridge over Middle River on Route 775
Open to traffic

Middle River Route 778 Bridge (Augusta County, Virginia)
Built 1915 by the Champion Bridge Co.
Through truss bridge over Middle River on Route 778
Open to traffic

Middle River VA 256 Bridge (Augusta County, Virginia)
Built 1907 by the Champion Bridge Co.
Three-span through truss bridge over Middle River on VA 256
Closed to all traffic

Middle Road Covered Bridge (Ashtabula County, Ohio)
Built 1868; rehabilitated 1984
Covered bridge over Conneaut Creek on Middle Road in Conneaut
Open to traffic

Midland Fredericktown Road Bridge (Columbiana County, Ohio)
Built 1900; rehabilitated 2004
Through truss bridge over North Fork Little Beaver Creek on Midland Fredericktown Road (TR 1038) in Calcutta
Open to traffic

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

Mill Creek Bridge (Wabaunsee County, Kansas)
Built ca. 1935
Through truss bridge over Mill Creek on Willard Road, 1.0 mi. east and 0.2 mi. north of Maple Hill
Open to traffic

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 Covered Bridge (Parke County, Indiana)
Built 1907 by D.M. Brown
Covered bridge over Mill Creek on CR N550W
Open to traffic

Mill Hill Road Bridge (Franklin County, Missouri)
Bypassed by new bridge in 1993
Through truss bridge over Meramec River on Mill Hill Road south of Moselle
Closed to traffic

Millersville Bridge (Cape Girardeau County, Missouri)
Built 1923; rehabilitated 1975
Two-span through truss bridge over Whitewater River on MO 72 at Millersville
Open to two-lane traffic on a paved road

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

Millport Covered Bridge (Knox County, Missouri)
Built 1872 by William Hudson; collapsed ca. 1954 and replaced by a pony truss bridge
Lost covered bridge over Middle Fork Fabius River at Millport
No longer exists

Minneapolis Railroad Bridge (Ottawa County, Kansas)
Through truss bridge over Pipe Creek on the Kyle Railroad at Minneapolis
Open to traffic

Minnesota River Bridge (Blue Earth County, Minnesota)
Built 1954
Through truss bridge over Minnesota River on CR 42
Open to traffic

Mississippi River Bridge (Ramsey County, Minnesota)
Through truss bridge over Mississippi River on Chicago and Northwestern Railroad


Mississippi River Bridge (Dakota County, Minnesota)
Warren through truss bridge over Mississippi River on Soo Line Railroad


Mobridge Railroad Bridge (Walworth County, South Dakota)
Through truss bridge over Missouri River (Oahe Lake) on the BNSF Railroad between Mobridge and Wakpala
Open to traffic

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

Moniteau Creek Road Bridge (Cole County, Missouri)
Built 1915; made obsolete by a new bridge on MO 179 in 1967
Through truss bridge over Moniteau Creek on Moniteau Creek Road (Old MO 179)
Open to traffic

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

Montoursville Bridge (Lycoming County, Pennsylvania)
Built 1931; rehabilitated 1994
Three-span through truss bridge over Loyalsock Creek on PA 2014 in Montoursville
Open to traffic

Monument Road Bridge (Harris County, Georgia)
Built 1930
Truss bridge over Sand Creek on Monument Road
Open to traffic

Moreau Creek Covered Bridge (Moniteau County, Missouri)
Lost covered bridge over Moreau Creek somewhere near California
No longer exists

Morrilton Bridge (Conway County, Arkansas)
Lost swing through truss bridge over Arkansas River on AR 9 at Morrilton
No longer exists

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

Morse Mill Bridge (Jefferson County, Missouri)
Built ca. 1886 by the St. Louis Bridge & Iron Co. Made obsolete by a new bridge on Route B in 1962.
Closed through truss bridge over Big River at Morse Mill
Open to pedestrians only

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

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

Moscow Covered Bridge (Rush County, Indiana)
Built 1886 by E. L. Kennedy
Two-span covered bridge over Flatrock River on CR 900S at Moscow
Open to one-lane traffic