Indian Creek IN 135 Bridge (Morgan County, Indiana)
Built 1933; rehabilitated 1982
Through truss bridge over Indian Creek on IN 135 in Morgantown
Open to two-lane traffic

Indian Creek Old MO 76 Bridge (McDonald County, Missouri)
Built 1929 by contractor M.E. Gillioz
Three-span open-spandrel arch bridge over Indian Creek on Cedar Road (Old MO 76) at Anderson
Open to traffic

Indian Creek Route EE Bridge (McDonald County, Missouri)
Built 1928
Three-span through truss bridge over Indian Creek on Route EE in Lanagan
Open to two-lane traffic

Indian Creek US 61 Bridge (Perry County, Missouri)
Built 1925
Concrete tee beam bridge over Indian Creek on US 61
Open to two-lane traffic

Indiana Avenue Bridge (Elkhart County, Indiana)
Built 1898 by the Bellefontaine Bridge & Iron Co.; rehabilitated 1986
Through truss bridge over Elkhart River on Indiana Avenue in Goshen
Open to traffic

Intercity Viaduct (Wyandotte County, Kansas)
Completed in 1907; lower level added 1930; parallel span opened in 1962
Two-level deck truss bridge over Kansas River on I-70 Eastbound in Kansas City
Open to four lanes of traffic on upper level and pedestrian traffic on lower level

Iowa Avenue Bridge (Johnson County, Iowa)
Built 1916; rehabilitated 1985
Three-span arch bridge over Iowa River on Iowa Avenue in Iowa City
Open to traffic

Ironton Bridge (Iron County, Missouri)
Built 1926
Tee beam bridge over Stouts Creek on Old MO 21 between Ironton and Arcadia
Open to traffic

Isabell Creek AR 105 Bridge (Pope County, Arkansas)
Built 1928 by the Maxwell Construction Co.
Open-spandrel arch bridge over Isabell Creek on AR 105 near Oak Grove
Open to two-lane traffic

Island Creek Branch Bridge (Jasper County, Illinois)
Arch bridge over a branch of Island Creek on TR 39, 3 mi. northeast of Island Grove
Open to traffic

Jackson Blvd. Bridge (Cook County, Illinois)
Built 1916
Bascule bridge over South Branch Chicago River on Jackson Blvd. in Chicago
Open to traffic

Jefferson City Bridge (Cole County, Missouri)
Original southbound bridge opened August 1955; new northbound bridge added 1991
Pair of steel through arch bridges over the Missouri River at Jefferson City on US 54/63 in Jefferson City
Open to traffic on a multi-lane freeway

Jefferson Street Bridge (Will County, Illinois)
Built 1932-33 by the Mississippi Valley Structural Steel Co.; rehabilitated 1941
Through truss bascule bridge over Des Plaines River on Eastbound US 30 in Joliet
Open to two-lane traffic

Jewettsport Ford Bridge (Tippecanoe County, Indiana)
Built 1912; rehabilitated 1989
Through truss bridge over Wabash River on IN 225
Open to traffic

John Snodgrass Bridge (Jackson County, Alabama)
Built 1958
Through truss bridge over Tennessee River on AL 117 near Stevenson
Open to traffic

Johnson Covered Bridge (Columbia County, Pennsylvania)
Built 1905
Covered bridge over Mugser Run on Cleveland Road
Open to traffic

Jud Christian Covered Bridge (Columbia County, Pennsylvania)
Built 1876; rehabilitated 1996
Covered bridge over Little Fishing Creek on Ardens Hill Road, northeast of Sereno
Open to traffic

Julien Dubuque Bridge (Dubuque County, Iowa)
Built 1943; rehabilitated 1992
Steel through arch bridge over the Mississippi River on US 20 at Dubuque
Open to traffic

Kaufman's Distillery Covered Bridge (Lancaster County, Pennsylvania)
Built 1900
Covered bridge over Big Chickies Creek on Sun Hill Road
Open to traffic

Kelly Branch Baseline Road Bridge (Greene County, Indiana)
Built ca. 1920; rehabilitated 1984
Pony truss bridge over Kelly Branch on Baseline Road
Open to traffic

Kemna Bridge (Miller County, Missouri)
Built 1924 by Joseph Dice; rehabilitated 1978
Swinging bridge over Tavern Creek on Kemna Bridge Road (CR 52-56) east of St. Elizabeth
Open to traffic with a 15 ton weight limit

Keystone Interchange Bridge (Pennington County, South Dakota)
Built 1968
Wooden arch bridge on US 16A
Open to traffic

Kimberling City Bridge (Stone County, Missouri)
Built 1956, replacing an earlier truss bridge inundated by the lake
Through truss bridge on MO 13 over Table Rock Lake (White River) at Kimberling City
Open to traffic

Klamath River Road Bridge (Siskiyou County, California)
Built 1901
Through truss bridge over Klamath River on Klamath River Road
Open to traffic

Klickitat Creek Bridge (Klickitat County, Washington)
Built 1933
Concrete arch bridge over Klickitat Creek on WA 14 in Lyle
Open to traffic

Knob Creek Bridge (Larue County, Kentucky)
Built 1981
Pony truss bridge over Knob Creek on Blanton Road
Open to traffic

Krickbaum Covered Bridge (Columbia County, Pennsylvania)
Built 1876
Covered bridge over South Branch Roaring Creek on All Saints Road
Open to traffic

Kurtz Mill Covered Bridge (Lancaster County, Pennsylvania)
Relocated 1974
Covered bridge over Mill Creek on Kiwanis Road in Lancaster City Park
Open to traffic

KY 1268 Jessamine Creek Stone Bridge (Jessamine County, Kentucky)
Built 1930; rehabilitated 1966
Stone arch bridge over Jessamine Creek on Ky-1268 in Wilmore
Open to traffic

Lac La Belle Bridge (Waukesha County, Wisconsin)
Built 1925, Replaced 2007
Lost stringer bridge over Lac La Belle Lake on Lake Road - Former Wisc 67 in Oconomowoc
Replaced by new bridge

Lacon Bridge (Marshall County, Illinois)
Built 1939; rehabilitated 1990
Cantilevered through truss bridge over the Illinois River on IL 17 at Lacon
Open to two-lane traffic

Lafayette Street Bridge (Washington County, Arkansas)
Built 1938 by contractor Ed B. Mooney, Inc.
Art Deco concrete bridge over the Arkansas & Missouri Railroad on Lafayette Street in Fayetteville
Open to traffic

Lake Pontchartrain Causeway (St. Tammany Parish, Louisiana)
First bridge built 1956
Pair of prestressed concrete bridges over Lake Pontchartrain with a length of nearly 24 miles in New Orleans
Open to two lanes of toll southbound traffic and two lanes of free northbound traffic

Lakeshore Drive Bridge (Cook County, Illinois)
Built 1937
Bascule bridge over Main Branch Chicago River on Lakeshore Drive in Chicago
Open to traffic

Lambs Creek Old IN 67 Bridge (Morgan County, Indiana)
Built 1893
Through truss bridge over Lambs Creek on Old IN 67
Open to traffic

Lamine River Old US 50 Bridge (Cooper County, Missouri)
Built 1930
Open-spandrel arch bridge over Lamine River on Route A (Old US 50) east of Otterville
Open to traffic

Landis Mill Covered Bridge (Lancaster County, Pennsylvania)
Built 1873
Covered bridge over Little Conestoga Creek on Sheiner Station Road in Lancaster
Open to traffic

Las Flores Road over Las Flores Creek (Los Angeles County, California)
Built 1942
Pony truss bridge over Las Flores Creek on Las Flores Road in Los Angeles
open to traffic

Lattas Creek Bridge (Greene County, Indiana)
Built 1917
Pony truss bridge over Lattas Creek on CR 250 West
Open to traffic

Laurel Street Bridge (Hillsborough County, Florida)
Built 1926; rehabilitated 1969
Pony truss bascule bridge over Hillsborough River on Laurel Street in Tampa
Open to traffic

Leavenworth Centennial Bridge (Leavenworth County, Kansas)
Built 1955
Two-span through arch bridge over the Missouri River on KS 92/MO 92 at Leavenworth
Open to traffic

Lewis and Clark Viaduct (Wyandotte County, Kansas)
Opened Nov. 12, 1962; rehabilitated 1984
Deck truss bridge over Kansas River on I-70 Westbound in Kansas City
Open to traffic

Lexington Avenue Bridge (Elkhart County, Indiana)
Built 1926 by M.E. White Co. of Chicago
Three-span concrete arch bridge over St. Joseph River on Lexington Avenue in Elkhart
Open to traffic

Lexington Avenue Bridge (Jackson County, Missouri)
Built 1907; rehabilitated 1965 and 2006
Steel plate-girder bridge over Chestnut Trafficway on Lexington Avenue in Kansas City
Open to traffic

Liberty Memorial Bridge (Burleigh County, North Dakota)
Built 1922; rehabilitated 1991
Three-span through truss bridge over Missouri River on I-94 Business Loop in Bismarck
Open to traffic

Liberty Street Bridge (Clay County, Missouri)
Built 1921
Arch bridge over Wilkerson Creek on Liberty Street near Smithville
Open to traffic

Lick Creek Bridge (Owen County, Indiana)
Built ca. 1930
Pony truss bridge over Lick Creek on CR 750 South
Open to traffic

Lightning Creek K-126 Bridge (Crawford County, Kansas)
Built 1927; replaced 2004
Lost rainbow arch bridge over Lightning Creek on K-126 (Old US 160)
Replaced by a new bridge

Lime Valley Covered Bridge (Lancaster County, Pennsylvania)
Built 1871
Covered bridge over Pequea Creek on Breneman Road
Open to traffic

Lincoln Drive Bridge (Madison County, Missouri)
Built 1931
Curved tee beam bridge over Saline Creek on MO 72 (Lincoln Drive) in Fredericktown
Open to traffic

Little Berger Creek Bridge (Gasconade County, Missouri)
Built 1933; rehabilitated 1985
Pony truss bridge over Little Berger Creek on MO 100 southeast of Hermann
Open to two-lane traffic

Little Frog Bayou US 64B Bridge (Crawford County, Arkansas)
Built 1929
Pony truss bridge over Little Frog Bayou on US 64B in Alma
Open to traffic

Little Red River Bridge (Washington County, Arkansas)
Built 1923 by the Luten Bridge Co.
Concrete arch bridge over Little Red River on AR 170
Open to one-lane traffic

Little River Bridge (McCurtain County, Oklahoma)
Built 1938
Through truss bridge over Little River on US 70
Open to traffic

Little Sni-A-Bar Creek Bridge (Lafayette County, Missouri)
Built 1925
Pony truss bridge over Little Sni-A-Bar on MO 224 (Old US 24)
Open to one-lane traffic

Little Wabash Bridge (Shelby County, Illinois)
Built 1924
Through truss bridge over Little Wabash on TR 385
Open to traffic

Lockport Swing Bridge (Lafourche Parish, Louisiana)
Built 1940
Swing bridge over Bayou Lafourche on LA 655 in Lockport
Open to traffic with a weight limit

Logan Creek Bridge (Flathead County, Montana)
Built 1926-27
Two-span stone and concrete arch bridge over Logan Creek on Going-To-The-Sun Road
Open to traffic

Long Creek MO 13 Bridge (Caldwell County, Missouri)
Built 1925; rehabilitated 1940
Concrete arch bridge over Long Creek on MO 13
Open to traffic

Los Cerritos Bridge (Conejos County, Colorado)
Reconstructed 1987
Pony truss bridge over Conejos River on CR M south of Manassa
Open to one-lane traffic

Lost River Bridge (Orange County, Indiana)
Built ca. 1920; rehabilitated 1992
Pony truss bridge over Lost River on CR 500 East
Open to traffic

Lost River Bridge (Orange County, Indiana)
Built 1894
Through truss bridge over Lost River on CR 375 North
Open to traffic

Lower Gas Point Road Bridge (Shasta County, California)
Built 1920
Through truss bridge over North Fork Cottonwood Creek on Lower Gas Point Road
Open to traffic

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

Mackinac Bridge (Emmet County, Michigan)
Built 1957
Suspension bridge over the Straits of Mackinac on I-75 at Mackinaw City
Open to traffic

Madison Avenue Bridge (New York County, New York)
Built 1907; rehabilitated 1988
Swing bridge over Harlem River on Madison Avenue in New York
Open to traffic

Maeystown Bridge (Monroe County, Illinois)
Built 1881; rehabilitated 1938
Stone arch bridge over Maeystown Creek on Mill Street at Maeystown
Open to one-lane traffic

Main Street over the Santa Monica Freeway (Los Angeles County, California)
Built 1926
Concrete arch bridge over ROUTE 1 on Main Street in Santa Monica
Open to traffic

Manhattan Bridge (New York County, New York)
Opened to traffic December 31, 1909
Suspension bridge over East River in New York City
Open to seven lanes of highway traffic and four subway tracks

Manitowoc River 10th Street Bridge (Manitowoc County, Wisconsin)
Built 1987
Bascule bridge over Manitowoc River on 10th Street (Eastbound US 10) in Manitowoc
Open to 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

Maple Creek Road Bridge (Humboldt County, California)
Built 1923
Concrete arch bridge over Boulder Creek on Maple Creek Road
Open to traffic

Maple Street Bridge (Washington County, Arkansas)
Built 1936 by Fred Luttjohann of Topeka, Kansas
Open-spandrel arch bridge over the railroad on Maple Street in Fayetteville
Open to traffic

Mariah Creek Bridge (Knox County, Indiana)
Built ca. 1930; rehabilitated 1984
Pony truss bridge over Mariah Creek on CR 1050 North
Open to traffic

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

Market Street Bridge (Gasconade County, Missouri)
Built 1930
Tee beam bridge over Frene Creek on MO 19 in Hermann
Open to traffic

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

Marshall Road Bridge (Orleans County, New York)
Built 1909
Through truss bridge over Erie Canal on Marshall Road, west of Medina
Open to traffic

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

Mattole Road Bridge (Humboldt County, California)
Built 1935
Concrete arch bridge over Mattole River on Mattole Road
Open to traffic

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

McCord Street Overpass (Marion County, Illinois)
Built 1986 as a project to put IL 161 on a new alignment in Centralia
Steel stringer bridge over Illinois Central Railroad on IL 161 WB in Centralia
Open to traffic

McKee Street Bridge (Harris County, Texas)
Built 1932
Concrete girder bridge over Buffalo Bayou on McKee Street in Houston
Open to traffic

McKenzie Creek MO 49 Bridge (Wayne County, Missouri)
Built 1929
Pony truss bridge over McKenzie Creek on MO 49 south of Gads Hill
Open to traffic

Meramec River MO 21 Bridge (St. Louis County, Missouri)
Built 1940
Steel through arch bridge over the Meramec River on MO 21
Open to four lanes of traffic

Miami Creek MO 52 Bridge (Bates County, Missouri)
Built 1924
Through truss bridge over Miami Creek on MO 52
Open to traffic

Michigan Avenue Bridge (Cook County, Illinois)
Built 1920
Bascule bridge over Main Branch Chicago River on Michigan Avenue in Chicago
Open to traffic

Michigan Street Bridge (Milwaukee County, Wisconsin)
Built 1978
Vertical lift bridge over Milwaukee River on Michigan Street in Milwaukee
Open to traffic

Middle Creek Bridge (Miami County, Kansas)
Pony truss bridge over Middle Creek, 1.3 mi. south and 1.0 mi. west of Beagle
Open to traffic

Middle Fork AR 7 Bridge (Garland County, Arkansas)
Built 1933 by the Ault-Rich Construction Co. of Cassville, Missouri
Two-span open-spandrel arch bridge over Middle Fork Saline River on AR 7
Open to two-lane 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

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 Swinging Bridge (Miller County, Missouri)
Built by Joseph Dice; rehabilitated 1978
Swinging bridge over Mill Creek on Lake Road 42-18 (Swinging Bridges Road) near Brumley
Open to one-lane traffic

Millers Bridge (Butler County, Missouri)
Built 1924
Pony truss bridge over Cane Creek on Route PP (Old US 60) west of Poplar Bluff
Open to two-lane traffic

Milltown Bridge (Sebastian County, Arkansas)
Built 1940 by the Works Progress Administration
Two-span stone arch bridge over Vache Grasse Creek on CR 77 (Mount Harmony Road) west of Milltown
Current status unknown

Milwaukee River Broadway St. Bridge (Milwaukee County, Wisconsin)
Built 1982
Bascule bridge over Milwaukee River on Broadway Street (WI 32) in Milwaukee
Open to traffic

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

Mingo Ditch Route T Bridge (Stoddard County, Missouri)
Built 1955
Steel stringer bridge with wooden piers over Mingo Ditch on Route T
Open to two-lane traffic

Minnow Creek Bridge (Johnson County, Arkansas)
Built 1942 by the Works Progress Administration
Tee beam bridge over Minnow Creek on CR 50
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