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

Lancaster Covered Bridge (Carroll County, Indiana)
Built ca. 1872 by the Wheelock Bridge Co.; rehabilitated 1981; damaged by flooding in 2004, fully rehabilitated and reopened 2006
Covered bridge over Wildcat Creek on CR 500 West
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

Langley Covered Bridge (St. Joseph County, Michigan)
Built 1887 by Pierce Bodner
Covered bridge over St. Joseph River on Covered Bridge Road
Open to one-lane traffic

Laroque Bridge (Addison County, Vermont)
Built 1925 by the McClintic-Marshall Co.
Truss bridge over New Haven River on VT 116 in Bristol
Open to traffic(?)

LaRose Intracoastal Waterway LA 1 Bridge (Lafourche Parish, Louisiana)
Built 1961
Vertical lift bridge on LA 1 over the Intracoastal Waterway in LaRose
Open to traffic

Larson Road Bridge (Orange County, New York)
Built 1930 by the American Bridge Co.
Pony plate girder bridge over Shawangunk Kill on Larson Road, northeast of Bloomingburgh
Open to traffic

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

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

Laws Creek Bridge (Jasper County, Illinois)
Built 1909
Arch bridge over Laws Creek on TR 201, 3.5 mi. west of Newton
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

Leeper Bridge (Wayne County, Missouri)
Built 1933
Four-span through truss bridge over Black River on MO 34 near Leeper
Open to two-lane traffic

Leeville Bridge (Lafourche Parish, Louisiana)
Built 1970
Vertical lift bridge over Bayou Lafourche on LA 1 at Leeville
Open to traffic

Left Hand Chute AR 140 Bridge (Mississippi County, Arkansas)
Built 1958
Pony truss bridge over Left Hand Chute of Little River on AR 140 near Etowah
Open to traffic

Left Hand Chute AR 77 Bridge (Mississippi County, Arkansas)
Built 1965
Pony truss bridge over Left Hand Chute of Little River on AR 77 just south of the intersection with AR 198, northwest of Dyess
Open to two-lane traffic

Lenox Railroad Bridge (Dyer County, Tennessee)
Pony plate girder bridge over Obion River on the Tennken Railroad, north of Lenox
Open to railroad traffic

Levi Branch Bridge (Pope County, Arkansas)
Built ca. 1940
Pony truss bridge over Levi Branch on CR 14 (Old AR 7)
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 Bridge (Jackson County, Missouri)
Northbound bridge built 1949 and rehabilitated 1986; southbound bridge built 1996
Pair of through truss bridges over Missouri River on MO 291 south of Liberty in Kansas City
Open to four lanes of divided-highway 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 (Jefferson County, Ohio)
Built 1928 by the Luten Bridge Co.; rehabilitated 2000
Arch bridge on Liberty Street (CR 61)
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 (Sangamon County, Illinois)
Pony truss bridge over Lick Creek on TR 176 in Springfield
Open to traffic

Lick Creek Bridge (Orange County, Indiana)
Built ca. 1910
Pony truss bridge over Lick Creek on CR 250 South
Open to traffic

Lick Creek Route J Bridge (Stoddard County, Missouri)
Built 1935
Pony truss bridge over Lick Creek Ditch on Route J, west of Bloomfield
Open to one-lane traffic

Lickford Branch Road Bridge (Harrison County, Indiana)
Built ca. 1920; rehabilitated 1989
Through truss bridge over Indian Creek on Lickford Branch Road
Open to traffic

Licking River Bridge (Nicholas County, Kentucky)
Built 1917
Through truss bridge over Licking River on Old US 68
Open to traffic

Lighthouse Drive Bridge (Washington County, Wisconsin)
Steel stringer bridge over Milwaukee River on Local Road Lighthouse Drive
Open to traffic

Liguori Street Trestle (Jefferson County, Missouri)
Wooden railroad trestle on the BNSF Railroad over Liguori Street just off US 61/67 in Barnhart
Open to railroad traffic above and road traffic below

Lilleberg Bridge (Jackson County, Minnesota)
Built 1976. Previous span was 8-panel pin-connected Pratt through truss bridge with A-frame portals. That was built in 1911 by Central States Bridge Co. of Indianapolis
Stringer bridge over Des Moines River on Csah 16
Open to traffic

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

Limekiln Creek Bridge (Benton County, Arkansas)
Built ca. 1920
Pony truss bridge over Limekiln Creek on CR 700
Open to traffic

Lincoln Avenue Viaduct (Pulaski County, Arkansas)
Built 1928 by the Ozark Engineering Company and paid for by the Missouri Pacific Railroad
Through arch bridge across the Union Pacific Railroad on the westbound lanes of AR 10 (Cantrell Road) in Little Rock
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

Lincoln Highway (Cty E39) Bridge (Greene County, Iowa)
Built 1924
Steel stringer bridge over a drainage ditch on CR E39 (former Lincoln Highway) in Ralston
Open to traffic

Lincoln Highway C&NW Bridge (Story County, Iowa)
Bridge over E-41 (The Lincoln Highway) on Union Pacific Double Mainline (Formerly Chicago & North Western Railway)
Open to traffic

Lincoln Highway Colo Interchange (Story County, Iowa)
Built 1938; rehabilitated 1976
Steel stringer bridge over Over Us 65 on Lincoln Highway E-41
Open to traffic

Lincoln Highway over Pike Run (Allen County, Ohio)
Built 1927
Bridge over Pike Run on Lincoln Highway
Open to traffic

Lincoln Highway Wapsipinicon River Bridge (Clinton County, Iowa)
Built ca. 1930
Two-span pony plate girder bridge over Wapsipinicon River on 235th Street (former Lincoln Highway)
Open to one-lane traffic

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

Linn Creek Bridge (Marshall County, Iowa)
Built 1893; rehabilitated 1955
Pony truss bridge over Linn Creek on a local road
Open to traffic

Linn Creek Intersection Bridge (Marshall County, Iowa)
Built 1920; rehabilitated 1976
Bridge over Linn Creek on Intersection of 200th Street and Durham Avenue
Open to traffic

Linwood Railroad Bridge (Leavenworth County, Kansas)
Through truss bridge over Stranger Creek on the railroad just east of Linwood
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 Antoine Creek Bridge (Clark County, Arkansas)
Built ca. 1930; rehabilitated 1974
Pony truss bridge over Little Antoine Creek on CR 246
Open to one-lane 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 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 Blue River Bridge (Crawford County, Indiana)
Built 1892
Through truss bridge over Little Blue River on CR 1030 South
Open to traffic

Little Blue River Bridge (Crawford County, Indiana)
Built 1925; rehabilitated 1994
Through truss bridge over Little Blue River on CR 250 East
Unknown status

Little Blue River Bridge (Crawford County, Indiana)
Through truss bridge over Little Blue River on CR 1190 South in Alton
Open to traffic

Little Boeuf Creek MO 100 Bridge (Franklin County, Missouri)
Built 1934
Stringer bridge with concrete balustrades over Little Boeuf Creek on MO 100
Open to two-lane traffic

Little Buffalo River AR 327 Bridge (Newton County, Arkansas)
Built 1939 by the Works Progress Administration
Seven-span concrete tee beam bridge with stone piers over Little Buffalo River on AR 327
Open to traffic

Little Cossatot River Bridge (Sevier County, Arkansas)
Built 1908 by the Morava Construction Co. of Chicago
Pony truss bridge over Little Cossatot River on CR 139 (Wildwood Road) west of Lockesburg in Lockesburg
Open to traffic

Little Creek AR 164 Bridge (Pope County, Arkansas)
Built 1946
Wooden bridge over Little Creek on AR 164
Open to traffic

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 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 Indian Creek John Pectol Road Bridge (Floyd County, Indiana)
Built ca. 1930; rehabilitated 1972
Pony truss bridge over Little Indian Creek on John Pectol Road in Galena
Open to traffic

Little Missouri River US 67 Bridge (Clark County, Arkansas)
Built 1931 by the Vincennes Bridge Co. of Vincennes, Indiana
Three-span pony truss bridge over Little Missouri River on US 67
Open to traffic

Little Muncy Creek PA 442 Bridge (Lycoming County, Pennsylvania)
Built 1927
Pony truss bridge over Little Muncy Creek on PA 442
Open to traffic

Little Niangua Swinging Bridge (Camden County, Missouri)
Built 1932
Self-anchored suspension bridge over Little Niangua River on Route J between MO 7 and US 54
Open to two-lane 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 Piasa Creek US 67 Bridge (Madison County, Illinois)
Built 1939
Concrete arch bridge over Little Piasa Creek on US 67, 9.3 mi. south of Jerseyville
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 1959
Through truss bridge over Little River on 4530C
Open to traffic

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

Little Robinson Road Bridge (Benton County, Arkansas)
Built ca. 1930
Pony truss bridge over an unnamed creek on Robinson Road (CR 103)
Open to one-lane traffic

Little Salt Creek Bridge (Lawrence County, Indiana)
Built 1897; rehabilitated 1987
Through truss bridge over Little Salt Creek on CR 595 East
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 Sugar Creek Bridge (Linn County, Kansas)
Built 1913
Concrete arch bridge over Little Sugar Creek in Mound City
Open to traffic

Little Valley Church Bridge (Bollinger County, Missouri)
Built 1922
Pony truss bridge over Cane Creek on CR 524 northwest of Dongola
Open to traffic on a gravel road with an 8 ton (?) weight limit

Little Wabash River Bridge (Edwards County, Illinois)
Built 1940
Through truss bridge over Little Wabash River on FAS 800, 0.5 mi. south of Blood
Open to traffic

Little Wabash River Bridge (Edwards County, Illinois)
Built 1893
Through truss bridge over Little Wabash River on TR 229, 6.5 mi. west of Grayville
Open to traffic

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

Lobatos Bridge (Conejos County, Colorado)
Built 1989
Pony truss bridge over Rio San Antonio on CR G east of Antonito
Open to two-lane traffic

Lockport Canal Bridge (Lafourche Parish, Louisiana)
Built 1959
Vertical lift bridge on LA 1 over Lockport Canal in Lockport
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

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

Lodi Bridge (Wayne County, Missouri)
Built 1931 by M.E. Gillioz of Monett, Missouri
Concrete slab bridge with balusters on Old US 67 (CR 305) over Bennett Creek at Lodi
Open to 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

Logan Creek Old US 160 Bridge (Ripley County, Missouri)
Built 1923; made obsolete by new US 160 alignment in 1974
Pony truss bridge over Logan Creek on CR 160E-12 (Old US 160), northeast of Doniphan
Open to traffic on a paved road

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

Longden Drive Bridge (Los Angeles County, California)
Built 1962
Concrete arch bridge over Rubio Wash on Longden Drive in San Marino
Open to traffic

Longman Road Bridge (Preble County, Ohio)
Built ca. 1875
Pony truss bridge over Sugar Creek on Longman Road (TR 255)
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

Los Verjeles Road Bridge (Yuba County, California)
Built 1940
Concrete arch bridge over South Honcut Creek on Los Verjeles Road in Loma Rica
Open to traffic

Lost Creek CR 528 Bridge (Wayne County, Missouri)
Built ca. 1950; rehabilitated 1988
Wooden bridge over West Fork Lost Creek on CR 528, northwest of Shook
Open to one-lane traffic

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

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

LSF Railroad Bridge (Linn County, Kansas)
Built 1989
Deck truss bridge over Local Road. 22 on LSF Railroad, 1.8 mi. north and 2.0 mi. west of Trading Post
Open to traffic

Luling Bridge (St. Charles Parish, Louisiana)
Built 1983 at a cost of $135 million
Cable-stayed bridge over the Mississippi River on I-310 west of New Orleans, near Luling
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

Lynn Creek Bridge (Van Buren County, Arkansas)
Built 1980
Steel stringer bridge over Lynn Creek on CR 88
Open to traffic