Leeper Branch Bridge (Callaway County, Missouri)
Built ca. 1925; replaced ca. 2007
Replaced pony truss bridge over Leeper Branch on CR 260
Sitting abandoned in field

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

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

Left Hand Chute AR 140 Bridge (Mississippi County, Arkansas)
Built 1958 by the D&W Bridge Co. of North Little Rock
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

Lemay Ferry Bridge (St. Louis County, Missouri)
Built 1933
Lost two-span through truss bridge over Meramec River on US 61/67 north of Arnold in Oakville
Replaced by a new bridge in September 2004; old bridge demolished November 2004

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

Lesterville Bridge (Reynolds County, Missouri)
Built 1917. Closed at around 10 AM on June 15, 2004, with the opening of the new bridge. Main span demolished June 21, 2004.
Lost three-span through truss bridge over Black River on Peola Road (CR 342)
Demolished during June 2004

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 & Clark Bridge (Cowlitz County, Washington)
Built 1929; rehabilitated 2003
Through truss bridge over Columbia River on WA 433
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

Lewis Bridge (St. Louis County, Missouri)
The current bridge was built 1979
Lost through truss bridge over the Missouri River on US 67 adjacent to Bellefontaine Railroad Bridge
Replaced by a modern four-lane deck-girder bridge

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

Lexington Bridge (Lafayette County, Missouri)
Opened to traffic Oct. 31, 1924; replacement bridge opened June 25, 2005
Lost seven-span through truss bridge over the Missouri River on MO 13 at Lexington
Replaced by modern bridge on new bypass alignment

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

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

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

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

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

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

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

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 Achmun Creek Bridge (Yell County, Arkansas)
Built ca. 1920; replaced 1989
Lost wooden deck bridge with double-intersection Warren railing on Mickles Switch Road (CR 49/Old AR 10) northwest of Ola
Replaced by a new bridge

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)
Through truss bridge over Little Blue River on CR 1190 South in Alton
Open to traffic

Little Blue River Bridge (Shelby County, Indiana)
Through truss bridge over Little Blue River on CR 800 East
Open to traffic

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 Old IN 37 Bridge (Crawford County, Indiana)
Built 1926
Closed pony truss bridge over Little Blue River on Old IN 37
Closed to all traffic

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 Buck Creek Bedstead (Henry County, Indiana)
Original date and location unknown, later moved to farm field.
Abandoned bedstead Pratt pony truss bridge over Little Duck Creek
Abandoned

Little Cache River CR 310 Bridge (Clay County, Arkansas)
Built 1923; replaced 2003
Lost pony truss bridge over Little Cache River on CR 310
No longer exists

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 Bridge (Fayette County, Illinois)
Built 1954
Pony truss bridge over Little Creek on TR 442, 4 mi. northeast of St Elmo
Open to traffic

Little Deceiper Creek Bridge (Clark County, Arkansas)
Lost pony truss bridge over Little Deceiper Creek on AR 8
No longer exists

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 Graham Creek Bridge (Jennings County, Indiana)
Built 1897
Through truss bridge over Little Graham Creek on CR 800 East
Closed to all traffic

Little Indian Creek Bridge (Greene County, Indiana)
Built 1905
Pony truss bridge over Little Indian Creek on CR 100 South
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 Laflin Bridge (Bollinger County, Missouri)
Built ca. 1930; replaced 2005
Lost pony truss bridge over a branch of Crooked Creek near Laflin on CR 408
Replaced by a new bridge

Little Manatee River Railroad Bridge (Hillsborough County, Florida)
Built ca. 1902; abandoned in the 1980's
Abandoned through truss bridge over Little Manateee River on the former Seaboard Air Line Railway
Derelict

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

Little River CR 221 Bridge (Pemiscot County, Missouri)
Built ca. 2007, replacing an earlier 1934 wooden bridge
Relocated Bailey deck truss bridge over Little River on CR 221
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 (Effingham County, Illinois)
Built 1909
Pony truss bridge over Little Salt Creek on TR 304, 3 mi. northwest of Dieterich
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 Shawnee Creek Bridge (Fountain County, Indiana)
Built 1935
Pony truss bridge over Little Shawnee Creek on CR 200 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 (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 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 Bridge (Shelby County, Illinois)
Built 1924
Through truss bridge over Little Wabash on TR 385
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 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 (Effingham County, Illinois)
Built 1909
Through truss bridge over Little Wabash River on TR 157, 2.5 mi. south of Funkhouser
Abandoned with portions of deck missing

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

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

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 Creek Road Bridge (Caldwell County, Missouri)
Built 1908
Pony truss bridge over Log Creek on S.W. Log Creek Road
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 Creek Katy Bridge (Callaway County, Missouri)
Pony truss bridge over Logan Creek on the Katy Trail (former MKT Railroad)
Open to pedestrians and bicyclists only

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

London Mills Bridge (Knox County, Illinois)
Built 1883
Lost pratt through truss bridge over Spoon River on CH 39 in London Mills
Replaced by new bridge

Lone Rock Bridge (Douglas County, Oregon)
Built 1954
Truss bridge over North Umpqua River on OR 138
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

Longfellow Bridge (Bates County, Missouri)
Built 1915, replaced 1997 by a UCEB
Lost Pony truss bridge over Gillam creek on CR 5508, 3 miles southwest of Foster
Replaced by new bridge

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

Longwood Bridge (Clark County, Wisconsin)
Built 1901; Altered 1905; Replaced 1984
Lost Bridge over Black River on Colby Factory Rd
Replaced by new bridge

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

Lost Bridge (Dunn County, North Dakota)
Lost 3 Span Parker Through Truss bridge across the Little Missouri River.
Lost Parker through truss bridge over Little Missouri River on ND 22
Replaced by new bridge

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 Creek Covered Bridge (Jackson County, Oregon)
Original Built in 1881 but offical constuction date is 1919 on this structure since no records show if this bridge is the original or a rebuilt bridge.
Queenpost through truss bridge over Lost Creek on Abandoned Roadway in Lakecreek
Open to pedestrians

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

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

Lowell Covered Bridge (Lane County, Oregon)
Built in 1945 by John McWade, Raised in 1953 for Dexter Dam Construction,Closed in to vehicle traffic in 1981, Rehabilitated in 2006
Howe through truss bridge over Dexter Lake/Willamette River on Interpretive Path in Lowell
Open to pedestrians

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