Krape Park Bridge (Stephenson County, Illinois)
Built ca. 1920
Pony truss bridge over Yellow Creek on S. Demeter Drive at Krape Park in Freeport
Open to traffic

Kubli Road Bridge (Moniteau County, Missouri)
Built ca. 1910
Lost through truss bridge over North Moreau Creek on Kubli Road, southeast of California
Replaced by a new bridge

Kuntz Bridge (Callaway County, Missouri)
Built 1909 by Stupp Brothers Bridge & Iron Co.; replaced 2006
Lost through truss bridge over Cedar Creek on CR 397
Replaced by a new bridge

La Russell Bridge (Lawrence County, Missouri)
Through truss bridge over Spring River on CR 1000, northeast of La Russell
Closed to all traffic

Labadie Bottom Road Bridge (Franklin County, Missouri)
Built 1901 by Stupp Brothers Bridge & Iron Co.
Through truss bridge over Labadie Creek on Labadie Bottom Road
Open to traffic

Ladd Bridge (Bartow County, Georgia)
Abandoned through truss bridge over Petit Creek just off GA 113 in Cartersville
Abandoned with deck removed

Laflin Bridge (Bollinger County, Missouri)
Built 1908 by Stupp Brothers Bridge & Iron Co.; closed to traffic Dec. 15, 2003; main span demolished Apr. 13, 2005; replacement bridge opened Jan. 2006
Lost through truss bridge over Crooked Creek southwest of Laflin on CR 408, just beyond the end of Route U
Demolished to make way for replacement bridge

Lake Wilson Bridge (Russell County, Kansas)
Pony truss bridge over a branch of Lake Wilson on Reservoir Road(?)
Closed to traffic as of 1997

Lambeth Bridge (Laclede County, Missouri)
Built 1908; rehabilitated 1987
Three-span through truss bridge over Osage Fork on Tulsa Road
Closed to traffic

Lancaster High Bridge (Schuyler County, Missouri)
Lost through truss bridge over railroad tracks at or near Lancaster
No longer exists

Lanesboro Railroad Bridge (Fillmore County, Minnesota)
Railroad line abandoned 1979
Through truss bridge over Root River on the Root River State Trail (formerly Minnesota Southern Railroad) in Lanesboro
Open to pedestrians only

Lanesboro Root River Railroad South Crossing (Fillmore County, Minnesota)
Previous span consisted of a wooden Howe through truss bridge. Bridge was washed out during the flooding of 1900 and was subsequentially replaced with the current structure.
Pratt pony truss bridge over Root River just 0.2 miles west of Hwy. 250 Bridge on MN Southern Railroad (now Root River Trail)
Open to pedestrians

Laura Bradley Park Bridge (Peoria County, Illinois)
Built 1898
Deck truss bridge over Dry Run Creek on a park road within Laura Bradley Park in Peoria
Open to traffic

Leavenworth Railroad Bridge (Leavenworth County, Kansas)
Built 1892-94 under the direction of George S. Morison for about $300,000; dedicated Jan. 2, 1894
Lost through truss swing bridge over the Missouri River at Leavenworth
No longer exists

Lee Creek Road Bridge (Crawford County, Arkansas)
Made obsolete by a new bridge in 1994-95 and abandoned
Abandoned through truss bridge over Lee Creek on Lee Creek Road (West Rena Road), just north of I-40
Closed to all traffic

Leeper Ford Bridge (Greene County, Missouri)
Built 1930 using recycled material; replaced 1991
Lost through truss over Sac River on Farm Road 34 southwest of Walnut Grove, near the Dade County line
Replaced by a concrete bridge

Left Branch AR 123 Bridge (Newton County, Arkansas)
Lost through truss bridge over Left Branch Big Creek on AR 123
Replaced by new bridge in 2000

Lenox Bridge (Dyer County, Tennessee)
Built 1917 by the Vincennes Bridge Co.; damaged by overweight load in 1978; dismanted 1985; relocated 1987-88
Swing pony truss bridge originally spanning Obion River on CR S8025 west of Lenox
Open to pedestrians only

Lewis Mill Bridge (Daviess County, Missouri)
Completed Oct. 3, 1892, by the St. Joseph Bridge & Iron Co.; replaced 1989
Lost through truss over Grand River on CR 570 (July Avenue) west of Jameson, beyond the end of Route OO
Replaced by a concrete bridge

Lick Log Creek Bridge (Bollinger County, Missouri)
Originally built across the Castor River at Zalma in 1900 by Stupp Brothers Bridge & Iron Co. of St. Louis. Moved to present location when the current Zalma Bridge was built 1930. Replaced 1995 by another Derelict through truss over Lick Log Creek just south of Gipsy Bridge on CR 736
Abandoned with portions of deck missing, replaced by new truss bridge

Lime Kiln Road Bridge (Newton County, Missouri)
Built 1882 as a railroad bridge by the King Bridge Co.; later relocated here for vehicular traffic; replaced 1980
Lost through truss bridge over Shoal Creek on Lime Kiln Road north of Neosho in Neosho
Replaced by a modern bridge

Lindley Creek Bridge (Polk County, Missouri)
Built 1911 by the Canton Bridge Co.
Through truss bridge over Lindley Creek on 346th Road, south of MO 64
Open to traffic

Lithium Bridge (Perry County, Missouri)
Built ca. 1920
Pony truss bridge over Falls Branch on CR 921 just off Route M at Lithium
Open to traffic on a gravel road with a 6 ton weight limit

Little Black River MO 142 Bridge (Ripley County, Missouri)
Built 1949
Three-span pony truss bridge over Little Black River on MO 142, northwest of Naylor
Open to two-lane traffic on a paved road

Little Blue Creek Bridge (Pike County, Illinois)
Built 1916 by the Illinois Steel Bridge Co.; rehabilitated 1997
Pony truss bridge over Little Blue Creek on 492nd Street, This bridge was relocated from County Highway 14 on Big Blue. North of Detroit Illinois
Open to traffic

Little Blue Creek Bridge (Pike County, Illinois)
Built 1961
Through truss bridge over Little Blue Creek on 482nd Street (TR 506) between Florence and Milton, 2.75 mi. southeast of Detroit
Open to one-lane traffic with a weight limit

Little Bonne Femme Katy Trail Bridge (Boone County, Missouri)
Built 1898 by the A&P Roberts Co. of Pencoyd, Pennsylvania
Through truss bridge over Little Bonne Femme Creek on the Katy Trail
Open to pedestrians and bicyclists only

Little Flora Creek Bridge (Cape Girardeau County, Missouri)
Built ca. 1925
Pony truss bridge over Little Flora Creek on CR 635 southwest of Egypt Mills
Open to traffic

Little Osage River Bridge (Bourbon County, Kansas)
Built in 1896 by the Wrought Iron Bridge Co.
Through truss bridge over Little Osage River, 3.0 mi. west and 2.0 mi. north of Xenia
Open to traffic

Little Salt Creek Bridge (Lawrence County, Indiana)
Built 1897; rehabilitated 1987
Through truss bridge over Little Salt Creek on CR 595 East
closed to all traffic

Little Sugar Creek Bridge (Benton County, Arkansas)
Replaced 1940
Lost through truss bridge over Little Sugar Creek on AR 100 (later US 71) north of Bentonville in Bella Vista
Replaced by a new bridge

Little Zion Bridge (Madison County, Missouri)
Built 1922
Pony truss bridge over a branch of Twelvemile Creek near Zion on CR 417 (Old US 67)
Open to traffic with a 20 ton limit on a paved road

Livermore Bridge (Humboldt County, Iowa)
Replaced 2000
Lost through truss bridge over East Fork Des Moines River on 120th Street east of Livermore
Replaced by a new bridge

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 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 Creek Road Bridge (Caldwell County, Missouri)
Built 1908
Pony truss bridge over Log Creek on S.W. Log Creek Road
Open to traffic

Lost Bridge (Miami County, Indiana)
Built 1915; rehabilitated 1982
Through truss bridge over Eel River on CR 100 East
Open to 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

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

Macoupin Bridge (Macoupin County, Illinois)
Pony truss bridge over Macoupin Creek on Lake Catatoga Road south of Macoupin
Open to one-lane 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

Mahalasville Road Bridge (Morgan County, Indiana)
Built ca. 1920
Relocated pony truss bridge over Buck Creek
Open to pedestrians only

Mammoth Spring Bridge (Fulton County, Arkansas)
Lost six-span pony truss bridge over the outlet of Mammoth Spring
No longer exists

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 (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

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

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

Martin Bridge (Lake County, Colorado)
Pony truss on a bike trail east of Leadville crossing CR 3
Open to two-lane bike traffic above and road traffic below

Maryland Street Bridge (Pike County, Missouri)
Built ca. 1920
Pony truss bridge over Town Branch on Maryland Street in Louisiana
Open to one-lane traffic with an 8 ton weight limit

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

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

McKinney Creek Bridge (Polk County, Arkansas)
Built 1915
Pony truss bridge over McKinney Creek on CR 50
Open to one-lane traffic

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

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

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 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 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

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

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 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

Miller Creek Bridge (Alexander County, Illinois)
Built 1933
Pony truss bridge over Miller Creek on Old Illinois Route 3 northeast of Thebes, 1 mi. north of Thebes
Open to two-lane 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

Miner Street Bridge (Clear Creek County, Colorado)
Built 1902 by Kuyes and Work. Reconstructed 1990 (the trusses are no longer load-bearing).
Reconstructed pony truss bridge over Clear Creek on Miner Street in Idaho Springs
Open to traffic

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 in Wyatt
Open to traffic on a paved road with a 20 ton weight limit

Missouri Street Bridge (Washington County, Missouri)
Pony truss bridge over Breton Creek on Missouri Street in Potosi, just south of the courthouse
Open to traffic

Mollys Run Bridge (Jefferson County, Indiana)
Built 1905
Pony truss bridge over Mollys Run on Brooksburg Manville Road (CR 260N)
Open to one-lane 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

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

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

Mountain Fork Bridge (Polk County, Arkansas)
Built 1905
Two-span pony truss bridge over Mountain Fork Creek on CR 38 near the community of Camp Pioneer
Open to traffic

Mountain Glen Bridge (Union County, Illinois)
Pony truss bridge over a branch of Clear Creek near Mountain Glen
Open to traffic on a paved road

Muddy Creek Old US 65 Bridge (Pettis County, Missouri)
Built ca. 1930
Through truss bridge over Muddy Creek on Claycomb Road (Old US 65) north of Sedalia
Open to traffic

Mulberry Bridge (Crawford County, Arkansas)
Derelict through truss bridge over Mulberry River near Mulberry
Derelict

Munger Bridge (Adams County, Illinois)
Through truss bridge temporarily sitting next to 1000th Street, just north of the Pike County line
Sitting abandoned, propped up on wheels and concrete blocks

Murphy Drive Bridge (Caldwell County, Missouri)
Built ca. 1930
Pony truss bridge over Long Creek on S.W. Murphy Drive
Open to traffic

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
Closed to traffic

Mystery Bridge (Boone County, Missouri)
Lost through truss bridge somewhere near Easley, possibly over Perche Creek
No longer exists

Mystery Bridge (Harrison County, Missouri)
Through truss bridge somewhere near Bethany
Unknown status

Mystery Bridge (Faulkner County, Arkansas)
Lost through truss bridge somewhere in Faulkner County
No longer exists

Mystery Bridge (Washington County, Arkansas)
Lost through truss bridge somewhere in Washington County, possibly over White River
No longer exists

Mystery Bridge (Crawford County, Arkansas)
Lost two-span through truss bridge, possibly over Mulberry River
No longer exists

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

Neosho River Bridge (Labette County, Kansas)
Pratt through truss bridge over Neosho River
Open to authorized vehicles only

Neosho River Bridge (Neosho County, Kansas)
Through truss bridge over Neosho River on 42.5-17.6 Local, 1.0 mi. east and 2.6 mi. south of St. Paul
Open to traffic

Neosho River Bridge (Lyon County, Kansas)
Built ca. 1930; replaced 2001
Lost through truss bridge over Neosho River, 4.0 mi. east of Emporia
No longer exists

Nepesta Bridge (Pueblo County, Colorado)
Built 1905-06 by the Pueblo Bridge Co.; replaced 1989
Lost two-span through truss bridge over Arkansas River on Nepesta Road (CR 613) southeast of Boone
Replaced by a new bridge