Neosho River Bridge (Lyon County, Kansas)
Parker through truss bridge over Neosho River on Atchison, Topeka, and Santa Fe (ATSF) Railroad
Open to traffic

Neosho River Bridge (Neosho County, Kansas)
Built 1908
Through truss bridge over Neosho River, 2.4 mi. west of Erie
Closed to all traffic

Neosho River Bridge (Neosho County, Kansas)
Built 1954
Through truss bridge over Neosho River, 0.4 mi. west of Shaw
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

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

Neosho River Bridge (Lyon County, Kansas)
Built ca. 1940
Through truss bridge over Neosho River, 0.5 mi. west of Neosho Rapids
Open to traffic

Neosho River Bridge (Neosho County, Kansas)
Abandoned parker through truss bridge over Neosho River
Abandoned

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 K-58 Bridge (Neosho County, Kansas)
Built 1937
Through truss bridge over Neosho River on K-58
Open to traffic

Neosho River US 75 Bridge (Coffey County, Kansas)
Built 1934; Lost 2006
Through truss bridge over Neosho River on US 75
Lost

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

Nevins Covered Bridge (Parke County, Indiana)
Built 1920 by J.A. Britton
Covered bridge over Little Raccoon Creek on CR S130E
Open to traffic

New Canal Bridge (Madison County, Illinois)
Built ca. 1963
Pair of cantilevered through truss bridges over Chain of Rocks Canal on I-270 in Granite City
Open to traffic

New Germantown Covered Bridge (Perry County, Pennsylvania)
Built 1891
Covered bridge over Shermans Creek on TR 302
Open to traffic

New Harmony Bridge (Posey County, Indiana)
Built 1932
Closed four-span through truss toll bridge over Wabash River on IL 14 at New Harmony, Indiana
Closed to all traffic

New Lick Log Creek Bridge (Bollinger County, Missouri)
Originally built ca. 1922 on a state highway. Relocated here in 1995 to replace the older Lick Log Creek Bridge (now derelict)
Refurbished pony truss bridge over Lick Log Creek on CR 736 near Gipsy
Open to traffic with no posted restrictions

New Rothrock Mill Bridge (Crawford County, Indiana)
Built 2005; replaced the old Rothrock Mill Bridge
Warren pony truss bridge over Blue River on Rothrock Mill Road (Co. Rd 120 South)
Open to traffic

New Steelbridge Rd. Bridge (Dawson County, Georgia)
Built 1980
Bridge over Amicalola Creek on Steelbridge Rd.
Open to traffic

Newburg Road Bridge (Macon County, Illinois)
Built 1898
Through truss bridge over Friends Creek on Newburg Road (TR 23), 1.0 mi. east of Argenta
Closed to all traffic

Newport Bridge (Jackson County, Arkansas)
Built 1930
Cantilevered through truss bridge on AR 367 (formerly US 67) over White River at Newport
Open to two-lane traffic

Newport Covered Bridge (Vermillion County, Indiana)
Built 1885 by J.J. Daniels; rehabilitated 1983
Covered bridge over Little Vermillion River on CR 50 North
Open to traffic

Newport Railroad Bridge (Jackson County, Arkansas)
Built 1938 by the Virginia Bridge Co.
Through truss swing bridge over White River and CR 10 on the Union Pacific Railroad south of Newport
Open to railroad traffic

Niangua Arm US 54 Bridge (Camden County, Missouri)
Built 1930; replaced 1999
Lost cantilevered through truss bridge over Niangua Arm, Lake of the Ozarks, on US 54 southwest of Camdenton
Replaced by a new bridge

Niangua Bridge (Camden County, Missouri)
Built 1935; demolished in 2003
Lost deck truss bridge over Niangua Arm, Lake of the Ozarks, on MO 5/7 northwest of Camdenton
Replaced by modern bridge

Niangua River Old US 66 Bridge (Webster County, Missouri)
Built 1924
Pony truss bridge on Route CC (Old US 66) over East Fork Niangua River
Open to traffic

Niangua River Route K Bridge (Dallas County, Missouri)
Built or relocated here in 1936; rehabilitated 1994
Through truss bridge over Niangua River on Route K
Open to traffic

Nineteenth Street Bridge (Denver County, Colorado)
Built 1888 by the Missouri Valley Bridge & Iron Works; rehabilitated 1965; closed to traffic 1986; new bridge built 1992
Two-span wrought-iron through truss bridge over South Platte River on 19th Street in Denver
Open to pedestrians only

Nineveh Bridge (Adair County, Missouri)
Built 1885; replaced 1989
Lost through truss bridge over Old Channel Chariton River on CR 175 east of Connelsville
Replaced by a concrete bridge

Ninnescah River Bridge (Sumner County, Kansas)
Built 1962
Through truss bridge over Ninnescah River, 2.0 mi. east and 3.8 mi. south of Belle Plaine
Open to traffic

Noakes Bridge (Nodaway County, Missouri)
Built 1891-92 by the St. Joseph Bridge & Iron Co.; replaced 1991
Lost through truss over One Hundred and Two River on 130th Street (CR 156) southwest of Hopkins
Replaced by a concrete bridge

Noix Creek MO 79 Bridge (Pike County, Missouri)
Built 1935
Pony truss bridge over Noix Creek on MO 79 in Louisiana
Open to two-lane traffic

Norfork Bridge (Baxter County, Arkansas)
Construction started Aug. 21, 1936, by the Vincennes Steel Company; dedicated June 17, 1937
Four-span deck truss bridge over North Fork White River on AR 5 at Norfork
Open to traffic

Norfork Railroad Bridge (Baxter County, Arkansas)
Built ca. 1909
Three-span through truss bridge over North Fork White River and Prospect Street on the railroad at Norfork
Open to railroad traffic

Norris Ford Bridge (Rush County, Indiana)
Built 1916 by E. L. Kennedy
Covered bridge over Flatrock River on CR 300 North
Open to traffic

North Avenue Bridge (Cook County, Illinois)
Built 1907
Double-leaf bascule through truss bridge over North Branch Chicago River on North Avenue in Chicago
Open to two-lane traffic

North Big River Bridge (St. Francois County, Missouri)
Built 1924; made obsolete by new bridge in 1956
Through truss bridge over Big River on Old US 67 (Berry Road) north of Bonne Terre
Open to one-lane traffic

North Boat Ditch Bridge (Clark County, Arkansas)
Built ca. 1928
Through truss bridge over North Boat Ditch on CR 8
Open to one-lane traffic

North Boat Ditch US 67 Bridge (Clark County, Arkansas)
Built 1931 by the Virginia Bridge & Iron Co. of Roanoke, Virginia
Pony truss bridge over North Boat Ditch of Terre Noire Creek on US 67
Open to traffic

North Branch Root River Bridge (Fillmore County, Minnesota)
Built 1939
Through truss bridge over North Branch Root River on CR 124
Open to traffic

North Branch Root River MN 250 Bridge (Fillmore County, Minnesota)
Built 1924
Through truss bridge over North Branch Root River on MN 250
Open to traffic

North Caney Creek Bridge (Chautauqua County, Kansas)
Built ca. 1910
Pony truss bridge over North Caney Creek, 2.0 mi. north and 2.0 mi. east of Peru
Closed to all traffic

North Cayuga Street Bridge (Tompkins County, New York)
Built 1934; rehabilitated 2002
Pony truss bridge over Fall Creek on North Cayuga Street in Ithaca
Open to traffic

North Cut Ditch Bridge (Scott County, Missouri)
Built 1923; rehabilitated 1941
Through truss bridge on MO 77 over North Cut Ditch northwest of Diehlstadt
Open to one-lane traffic

North Fork Big Nemaha River Bridge (Richardson County, Nebraska)
Built 1955
Truss bridge over North Fork Big Nemaha River on NE 8 in Salem
Open to traffic

North Fork Little Maquoketa River Bridge (Dubuque County, Iowa)
Built 1901
Pony truss bridge over North Fork Little Maquoketa River on a local road
Open to traffic

North Fork MO 126 Bridge (Barton County, Missouri)
Built 1954
Three-span pony truss bridge over North Fork Spring River on MO 126
Open to two-lane traffic

North Fork Route H Bridge (Jasper County, Missouri)
Built 1933
Pony truss bridge over North Fork Spring River on Route H
Open to traffic

North Fork Route M Bridge (Jasper County, Missouri)
Built 1949
Pony truss bridge over North Fork Spring River on Route M (Baseline Road) in Carytown
Open to two-lane traffic

North River Bridge (Marion County, Missouri)
Lost through truss bridge over North River somewhere near Palmyra
No longer exists

North River Bridge (Madison County, Iowa)
Built ca. 1920; rehabilitated 1967
Through truss bridge over North River on a local road
Open to traffic

North River MO 168 Bridge (Marion County, Missouri)
Built 1932
Four-span through truss bridge over North River on MO 168, west of Palmyra
Open to two-lane traffic

North Wea Creek Bridge (Miami County, Kansas)
Built ca. 1920
Pony truss bridge over North Wea Creek, 2.2 mi. north and 2.0 mi. west of Louisburg
Open to traffic

North Wea Creek Bridge (Miami County, Kansas)
Built ca. 1910
Pony truss bridge over North Wea Creek, 4.3 mi. west and 2.0 mi. north of Louisburg
Open to traffic

North Wea Creek Bridge (Miami County, Kansas)
Built 1905
Parker through truss bridge over North Wea Creek, 3.5 mi. south and 7.8 mi. west of Louisburg
Closed to all traffic

Northern Pacific Railroad Bridge (Hennepin County, Minnesota)
Built 1895
Pratt deck truss bridge over Mississippi River on Northern Pacific Railroad (now pedestrian trail) in Minneapolis
Open to pedestrians

Norway Road Bridge (Newton County, Missouri)
Relocated here 1995
Pony truss bridge over Elm Spring Branch on Norway Road, just off Route HH
Open to two-lane traffic

Norwood Creek Bridge (McCurtain County, Oklahoma)
Built 1948; replaced 2005
Lost through truss bridge over Norwood Creek on OK 87
No longer exists

Oak Dale Road Bridge (Moniteau County, Missouri)
Built ca. 1930
Through truss bridge over Straight Fork on Oak Dale Road northwest of Latham
Open to one-lane traffic with a 15 ton weight limit

Oak Grove Bridge (Madison County, Missouri)
Built 1922; made obsolete by new bridge in 1972
Pony truss bridge over Barnes Creek on CR 504 (Old MO 72, formerly MO 70) west of Fredericktown
Open to traffic on a paved road

Oakalla Covered Bridge (Putnam County, Indiana)
Built 1898 by J.J. Daniels
Covered bridge over Big Walnut Creek on CR 375W
Open to traffic

Occoquan River Bridge (Prince William County, Virginia)
Parker through truss bridge over Occoquan River on Richmond, Fredericksburg and Potomac Railroad
Open to traffic

Offutt's Ford Covered Bridge (Rush County, Indiana)
Built 1884 by Kennedy Bros.
Covered bridge over Little Blue River on Offutt Bridge Road
Open to traffic

Ohio River I-77 Bridge (Washington County, Ohio)
Through truss bridge over the Ohio River on I-77 near Marietta
Open to traffic

Okabena Bridge (Jackson County, Minnesota)
Built 1936; replaced 1998
Lost through truss bridge over Jack Creek on CSAH 9 at Okabena
Replaced by a modern bridge

Okamanpedan State Park Bridge (Emmet County, Iowa)
Built 1914; rehabilitated 1923
Pony truss bridge over East Fork Des Moines River on Tuttle Lake Road at Okamanpedan State Park
Open to one-lane traffic

Okatibbee Creek Bridge (Lauderdale County, Mississippi)
Built 1926
Pony truss bridge over Okatibbee Creek on Old US 80 in Meridian
Open to traffic

Old Alton Bridge (Denton County, Texas)
Built 1884 by the King Bridge Co.; later bypassed
Through truss bridge over Hickory Creek on Copper Canyon Road in Denton
Open to pedestrians only

Old Alton Road Bridge (Oregon County, Missouri)
Through truss bridge over Warm Fork Spring River on the old Thayer-Alton Road near Thayer
Closed to all traffic

Old Appleton Bridge (Cape Girardeau County, Missouri)
Built 1879 by H.W. Sebastian & Co. of St. Louis; washed away by flash flood on December 3, 1982; reconstructed 2005
Wrought-iron through truss bridge over Apple Creek on Main Street in Old Appleton
Open to pedestrians and bicyclists only

Old Appleton US 61 Bridge (Cape Girardeau County, Missouri)
Built 1931
Pony truss bridge over Apple Creek on US 61 at Old Appleton
Open to two-lane traffic on a dangerous curve

Old Arkadelphia Bridge (Clark County, Arkansas)
Built before 1907, possibly by Stupp Brothers Bridge & Iron Co.
Lost two-span through truss bridge over Ouachita River at Arkadelphia carrying AR 7, AR 8, and AR 51
Replaced by the current Arkadelphia Bridge

Old Barn Bridge (Fillmore County, Minnesota)
Built 1914
Through truss bridge over Mill Pond South Branch Root on Heron Rd.
Open to traffic

Old Camp Nelson Bridge (Garrard County, Kentucky)
Built 1927 and replaced the Camp Nelson Covered Bridge. However, in turn, it was replaced by the new (US 27) Camp Nelson Bridge in 1972.
Parker Truss bridge over Kentucky River on Old Lexington Road
Closed to all traffic

Old Chain of Rocks Bridge (St. Louis, Missouri)
Built 1929; closed to traffic in 1968; reopened for pedestrians on June 5, 1999
Cantilevered through truss bridge over the Mississippi River on Old US 66 just south of the modern I-270 bridge in St. Louis
Open to pedestrians and bicyclists

Old Clay's Ferry Bridge (Fayette County, Kentucky)
Built 1871; rehabilitated 1955
Two-span through truss bridge over Kentucky River on KY 2328 (Old US 25) in Lexington
Open to traffic

Old Cleves Bridge (Hamilton County, Ohio)
Built 1914 by the Penn Bridge Co.; parallel bridge built 1959-60; closed to traffic Feb. 1988; replaced 1990
Lost four-span through truss bridge over the Great Miami River on eastbound US 50 at Cleves
Replaced by modern bridge

Old Five Road Bridge (Morgan County, Missouri)
Built 1922
Pony truss on Old Five Road over a branch of Little Gravois Creek
Open to traffic

Old Grade Road Bridge (Adair County, Missouri)
Built 1924; replaced 1989
Lost skewed through truss bridge over North Fork Salt River (Brashear Ditch) on CR 285 (Old Grade Road) south of Brashear
Replaced by a concrete bridge

Old Houston Mill Bridge (DeKalb County, Georgia)
Replaced 1958
Abandoned pony truss bridge over South Fork of Peachtree Creek on Old alignment of Houston Mill Rd in Atlanta
Abandoned

Old Jefferson Town Bowstring Bridge (Jefferson County, Kansas)
Built by the King Iron Bridge & Mfg Co. of Cleveland, Ohio. Relocated to Old Jefferson Town in Oskaloosa, Kansas. Added to the National Register of Historic Places in 1990.
Bowstring pony truss bridge over Unnamed creek
Open to pedestrians

Old Katy Bridge (Geary County, Kansas)
Built 1913 by the Pencoyd Bridge & Construction Co.
Through truss bridge over Lyon Creek on Otter Creek Road, just southeast of Wreford
Open to traffic

Old Lincoln Highway Bridge (Douglas County, Nebraska)
Replaced 1998, the Pony Truss structures were replaced on the new bridge
Lost pony truss bridge over W Br Papillion Creek on Old Lincoln Hwy
Replaced by new bridge

Old Mines Bridge (Washington County, Missouri)
Built 1923; rehabilitated 1933; replaced Summer 2007
Lost pony truss bridge over Old Mines Creek on MO 21
Replaced by a new bridge

Old Monroe Bridge (Lincoln County, Missouri)
Built 1930
Three-span through truss bridge over Cuivre River on Main Street (Old MO 79) in Old Monroe
Closed to all traffic as of March 2008

Old Monroe Railroad Bridge (Lincoln County, Missouri)
Three-span through truss bridge over Cuivre River on the BNSF Railroad at Old Monroe
Open to railroad traffic

Old Monticello Road Bridge (Bradley County, Arkansas)
Lost swing through truss bridge over Saline River on AR 4 (now US 278) between Warren and Monticello
Replaced 1949 by a new bridge located upstream

Old Richardsville Road Bridge (Warren County, Kentucky)
Built 1889
Three span Bowstring Arch Truss bridge over Barren River on Old Richardsville Road in Bowling Green
Open to traffic

Old River Bridge (Saline County, Arkansas)
Built 1899 by the Youngstown Bridge Co. of Youngstown, Ohio; closed to traffic in 1974
Two-span through truss bridge over Saline River on the Old Military Road near Benton
Abandoned with portions of deck missing

Old Rusty Bridge (Clay County, Iowa)
Built 1901 by the Clinton Bridge & Iron Works; relocated here in 1915
Through truss bridge over Little Sioux River on 210th Avenue north of Spencer in Spencer
Open to one-lane traffic

Old St. Charles Bridge (St. Charles County, Missouri)
Completed 1904; closed to traffic in 1992; finally dismantled in 1997
Lost four-span through truss bridge over the Missouri River at St. Charles
Replaced by a new bridge

Old TN 100 Bridge (Davidson County, Tennessee)
Parker through truss bridge over South Harpeth River on Old Harding Rd. (Old TN 100) in Nashville
Closed to all traffic

Old US 14 Bridge (Sheridan County, Wyoming)
Bridge made obselete by new bridge in 1994, and is now a pedestrian bridge.
Parker pony truss bridge over Tongue River on Old US 14 in Dayton
Open to pedestrians

Old Vicksburg Bridge (Warren County, Mississippi)
Built 1930
Cantilevered through truss bridge over the Mississippi River at Vicksburg just north of the I-20 bridge in Vicksburg
Closed to all vehicular and pedestrian traffic, but still used by the Kansas City Southern railroad

Old Yankton Road Bridge (Minnehaha County, South Dakota)
Built 1895 by S.M. Hewett
Through truss bridge over Big Sioux River on Old Yankton Road in Sioux Falls
Open to pedestrians only

Olin Covered Bridge (Ashtabula County, Ohio)
Built 1873; reconstructed 1993
Covered bridge over Ashtabula River on Dewey Road (TH 334) in Edgewood
Open to traffic

Oneota Drive Bridge (Winneshiek County, Iowa)
Built 1948
Pony truss bridge over Drainage Channel on Oneota Drive in Decorah
Open to traffic

Onion Creek Bridge (Montgomery County, Kansas)
Built 1911 by the Western Bridge Co.
Through truss bridge over Onion Creek just south of US 166 near Coffeyville
May or may not still be standing

Only Bridge (Hickman County, Tennessee)
Derelict through truss bridge over Duck River on TN 50 near Only
Derelict with deck and approaches removed

Orange Road Bridge (Delaware County, Ohio)
Built 1898 by the Toledo Bridge Co.; rehabilitated 1970
Through truss bridge over Olentangy River on Orange Road (TR 114) in Powell
Open to one-lane traffic