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

Newman Road Bridge (Gibson County, Indiana)
Built 1927
Pony truss bridge over Newman Lateral on Newman Road
Open to 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

Nichols Street Bridge (Callaway County, Missouri)
Built ca. 1940
Wooden bridge over the KCS Railroad on Nichols Street at the William Woods University campus in Fulton
Open to two-lane traffic

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

Nishnabotna River Bridge Manilla Vacinity (Crawford County, Iowa)
Built 1945;
Bowstring pony truss bridge over Nishnabotna Creek on 310th St near Manilla
Status unknown

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

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 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
Closed to 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 Branch Root River Bridge (Fillmore County, Minnesota)
Built 1939
Through truss bridge over North Branch Root River on CR 124
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 Fork Coal Creek Bridge (Fountain County, Indiana)
Built 1901
Through truss bridge over North Fork Coal Creek on CR 200 East
Open to traffic

North Fork Coal Creek Bridge (Fountain County, Indiana)
Built 1915
Through truss bridge over North Fork Coal Creek on CR 500 East
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 Rogue River Bridge (Jackson County, Oregon)
Built 1930
Concrete arch bridge over North Fork Rogue River on CR 797
Open to traffic

North Railroad Street Bridge (Rush County, Indiana)
Built 1901 by the New Castle Bridge Co.
Through truss bridge over Little Flatrock River on North Railroad Street
Closed to all traffic

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 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

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

O'Neal Bridge (Independence County, Arkansas)
Built ca. 1933, possibly by the Works Progress Administration
Small five-span closed-spandrel arch bridge over O'Neal Creek on O'Neal Road (CR 37)
Open to traffic

Oak Creek Mill Road Bridge (Milwaukee County, Wisconsin)
Built 1931; Closed to traffic for flood damage 6/08; Repaired-Reopened 8/08;
Concrete arch bridge over Oak Creek on Mill Road in South Milwaukee
Open to traffic after repair of flood damage

Oak Creek Parkway Bridge (Milwaukee County, Wisconsin)
Built 1931
Concrete arch bridge over Oak Creek on Oak Creek Parkway in South Milwaukee
Open to traffic

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

Oakland Bridge (Douglas County, Oregon)
Built 1925
Deck truss bridge over Calapooya Creek on Shady Highway in Oakland
Open to traffic

Oats Creek Bridge (Jackson County, Arkansas)
Built 1929; replaced 2005
Lost three-span concrete arch bridge over Oats Creek on Bradford Road (CR 1)
No longer exists

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

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

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 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 Cannons Lane Bridge (Jefferson County, Kentucky)
Built ca. 1960
Concrete arch bridge over Middle Fork Beargrass Creek on Old Cannons Lane in Louisville
Open to traffic

Old Carpenter Bridge (Maury County, Tennessee)
Abandoned single lane through truss bridge over the Duck River, new concrete bridge built right beside it
Abandoned through truss bridge over Duck River on Carpenter Bridge Road
Abandoned

Old Covington Bridge (Washington County, Illinois)
Lost through truss bridge with wooden deck, replaced by a modern bridge in the 1980s.
Lost through truss bridge over Kaskaskia River on Covington Road
Replaced by new beam bridge at current site

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 Hickory Tree River Bridge (Sullivan County, Tennessee)
Dates back to the early 1900's, abandoned and closed off when new Highway 44 bridge was built upriver
Abandoned Parker "Camelback (Pratt) truss bridge over Holston River, South Fork on Formerly carried Hickory Tree Road (new bridge now carries State Highway 44)
Abandoned

Old Highway 27 Little Emory Bridge (Morgan County, Tennessee)
Subdivided Warren pony truss bridge over Little Emory River on Old U.S. 27
Open to traffic

Old Highway 66 Bridge (Warrick County, Indiana)
Built 1941
Two span Parker through truss bridge over Little Pigeon Creek on Old Highway 66
Open to traffic

Old Hopkins Bridge (Marshall County, Tennessee)
Built (year unknown) by the Youngstown Bridge Company, Youngstown, Ohio
Lost Pratt single-span through truss bridge over Duck River on Hopkins Bridge Road in Eastern Marshall County-Western Bedford County
Replaced by new concrete I-beam bridge with one middle pier

Old Kankakee River Bridge (Starke County, Indiana)
Built ca. 1910
Through truss bridge over Old Kankakee River on CR 1100 West
Closed to all traffic

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 Mattole Road Bridge (Humboldt County, California)
Built 1926
Pony truss bridge over Mcnutt Creek on Old Mattole Road
Open to traffic

Old Monitor Road Bridge (Chelan County, Washington)
Built 1930
Concrete arch bridge over Wenatchee River on Old Monitor Road
Open to traffic

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
Open to one-lane traffic

Old National Road Bridge (Vigo County, Indiana)
Built 1919
Concrete arch bridge over Clear Creek on Old National Road
Open to traffic

Old Red Covered Bridge (Gibson County, Indiana)
Built 1875 by William T. Washer
Covered bridge over Big Bayou on Barnes Road
Open to pedestrians

Old Richardson Road Bridge (Marshall County, Tennessee)
Built 1911 by the Youngstown Bridge Company
Lost Pratt through truss bridge over East Rock Creek on Richardson Road in Northern Marshall County
Replaced by new bridge

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 River Road Bridge (Warrick County, Indiana)
Built 1893
Through truss bridge over Little Pigeon Creek on Old River Road
Open to traffic

Old Route E Bridge (Newton County, Missouri)
Built 1922; made obsolete by bridge on new alignment in 1974
Five-span arch bridge over Shoal Creek on Old Route E, northwest of Granby
Open to traffic

Old Rudy Way Bridge (Crawford County, Arkansas)
Built 1940 by the Works Progress Administration
Stringer bridge with stone piers over an unnamed creek on Old Rudy Way (CR 19) just off AR 282 at Rudy
Open to traffic

Old Scotland Bridge (Boone County, Indiana)
Built 1901
Three-span stone arch bridge over Sugar Creek on CR 200E
Open to traffic

Old South Eastman Road River Bridge (Sullivan County, Tennessee)
One of two truss bridges over the Holston River South Fork--first longer one sunk in river after overweight 18-wheeler caved it in--county later closed this two-span bridge 8 blocks south
Abandoned through truss bridge over Holston River, South Fork Sluice that formerly carried South Eastman Road in Kingsport
Abandoned

Old Topanga Road Bridge (Los Angeles County, California)
Built 1927; rehabilitated 1960
Wooden bridge over Old Topanga Creek on Old Topanga Road in Los Angeles
Open to traffic

Old US 50 Viaduct (Cooper County, Missouri)
Built 1924
Tee beam bridge over the Union Pacific Railroad on Old US 50, just north of current US 50
Open to traffic

Old Verona-Caney Road Bridge (Marshall County, Tennessee)
Destroyed by tractor-trailer truck, that exceeded bridge's maximum weight limit.. span on south end collapsed under the weight into the river.. rest of bridge later demolished
Lost Pratt through truss bridge over Duck River on Verona-Caney Road in Northern Marshall County
Collapsed

Old Verona-Caney Road Wooden Bridge (Marshall County, Tennessee)
Built 1900's
Lost Wooden Bridge over CSX (old Louisville & Nashville) Railroad on Verona-Caney Road in Northern Marshall County
Replaced by concrete deck bridge

Old Wallace Thompson Road Bridge (Marshall County, Tennessee)
Built 1902 by the Youngstown Bridge Company, Youngstown, Ohio
Lost Pratt through truss bridge over Big Rock Creek on Wallace Thompson Road in Northern Marshall County
Replaced by new bridge

Olena Road Bridge (Arkansas County, Arkansas)
Built 1936
Small arch bridge over a drainage ditch on Olena Road (CR 402)
Open to one-lane traffic

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

Opossum Creek ICRR Bridge (Shelby County, Illinois)
Built ca. 1900
Abandoned arch bridge over Opossum Creek on ICRR, 2 mi. north of Oconee
Abandoned

Opossum Hollow Bridge (Fountain County, Indiana)
Built ca. 1920
Concrete arch bridge over Opossum Hollow on CR 1300 North
Open to traffic

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

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

Oregon City Covered Bridge (Butte County, California)
Built 1983 by Clay Castleberry
Modern covered bridge over Oregon Gulch Creek on Oregon Gulch Road at Oregon City
Open to traffic

Oregon Creek Covered Bridge (Yuba County, California)
Built 1860 by Thomas Freeman
Covered bridge over Oregon Creek on Alleghany Road at Oregon Creek Campground
Open to traffic

Oronoco Bridge (Olmsted County, Minnesota)
Built 1918; rehabilitated 1987. Originally replaced an iron truss bridge built by Horrace E. Horton
Open-spandrel arch bridge over Zumbro River on CSAH 18 at Oronoco
Open to traffic

Orr Road Bridge (Washington County, Arkansas)
Built 1924
Through truss bridge over Illinois River on Orr Road (CR 67) just off AR 265, southeast of Prairie Grove
Open to one-lane traffic

Orten Creek Bridge (Scott County, Arkansas)
Built 1915; rehabilitated 1984
Pony truss bridge over Orten Creek on CR 60
Open to one-lane traffic

Osage Creek Bridge (Benton County, Arkansas)
Built 1911 by the Youngstown Bridge Co. of Youngstown, Ohio
Through truss bridge over Osage Creek on CR 71 southeast of Healing Springs
Open to one-lane traffic

Osage Valley Road Bridge (Cooper County, Missouri)
Built 1913; rehabilitated 1993
Pony truss bridge over Petite Saline Creek on Osage Valley Road
Open to traffic

Osiris Bridge (Cedar County, Missouri)
Built ca. 1910; replaced 2006
Lost pony truss bridge over Horse Creek on CR 1600
Replaced by a new bridge

Ottawa Street Bridge (Newton County, Missouri)
Built by the Canton Bridge Co.
Pony truss bridge over Little Lost Creek on Ottawa Street in Seneca
Open to traffic

Otter Creek Bridge (Chautauqua County, Kansas)
Built 1936 by the Works Progress Administration
Through truss bridge over Otter Creek, 4.2 mi. north of Cedarvale
Open to traffic

Otter Creek Covered Bridge (Ripley County, Indiana)
Built 1884 by Thomas A. Hardman; closed to traffic 1996
Covered bridge over Otter Creek on CR 850 West
Open to pedestrians only

Ouachita River CR 74 Bridge (Polk County, Arkansas)
Built 1914; replaced 2001
Lost pony truss bridge over Ouachita River on CR 74
Replaced by a new bridge

Ouachita River CR 76 Bridge (Polk County, Arkansas)
Built 1914
Pony truss bridge over Ouachita River on CR 76
Open to one-lane traffic

Owens Creek Main City Road Bridge (Cass County, Missouri)
Built ca. 1940
Pony truss bridge over Owens Creek on Main City Road
Open to traffic

Owens Ditch Bridge (Benton County, Indiana)
Built ca. 1920
Pony truss bridge over Owens Ditch on CR 225 North
Open to traffic

Owens Mill Bridge (Cedar County, Missouri)
Built ca. 1910 by the Canton Bridge Co.
Through truss bridge over Bear Creek on CR 1801
Open to one-lane traffic

Owl Creek Bridge (Allen County, Kansas)
Built 1909
Pony truss bridge over Owl Creek, 3.4 mi. west of Humboldt
Open to traffic

Oxly Military Road Bridge (Ripley County, Missouri)
Built ca. 1930
Wooden deck bridge over Logan Creek on CR 142E-30 (Old Military Road), just south of Oxly
Open to one-lane traffic

Ozark Mill Bridge (Christian County, Missouri)
Two-span through truss bridge over Finley Creek on W. McCracken Street (Old US 65) in Ozark
Open to traffic

Paint Creek Bridge (Fayette County, Ohio)
Built 1928; rehabilitated 1960
Truss bridge over Paint Creek on Old US 35
Open to traffic

Palos Covered Bridge (Athens County, Ohio)
Built in 1876, restored in 1974 and 200?
Covered bridge over Sunday Creek on TR 347
Restored and opened to traffic

Paoli Pike Bridge (Floyd County, Indiana)
Built 1921
Two-span concrete arch bridge over Little Indian Creek on Paoli Pike
Open to traffic

Papinville Bridge (Bates County, Missouri)
Built 1884 by the Kansas City Bridge & Iron Co.; bypassed by new bridge in 1995
Closed through truss bridge over Marais des Cygnes River just west of Papinville
Closed to all traffic

Paradise Creek Bridge (Russell County, Kansas)
Built 1917
Stone arch bridge over Paradise Creek, 1.0 mi. east and 2.0 mi. south of Paradise
Open to traffic

Paradise Creek Bridge (Russell County, Kansas)
Built 1935
Stone arch bridge over Paradise Creek, 1.0 mi. south and 0.5 mi. east of Paradise
Open to traffic

Paradise Creek Bridge (Russell County, Kansas)
Built 1901
Stone arch bridge over Paradise Creek
Open to traffic

Parkdale Bridge (Fremont County, Colorado)
Built ca. 1915
Pony truss bridge over Arkansas River near Parkdale on CR 157 just off US 50
Open to traffic

Parr's Mill Covered Bridge (Columbia County, Pennsylvania)
Built 1865
Covered bridge over Roaring Creek on Parrs Mill Road, south of Catawissa
Open to traffic

Patoka River Bridge (Orange County, Indiana)
Built 1884
Through truss bridge over Patoka River on CR 850 South
Open to traffic

Patoka River Bridge (Orange County, Indiana)
Built 1888
Through truss bridge over Patoka River on CR 180 East
Open to traffic