Morton Bridge (Ray County, Missouri)
Built by the Wrought Iron Bridge Co.
Through truss bridge over Crooked River on Landing Road
Open to traffic

Mosby Creek Covered Bridge (Lane County, Oregon)
Built in 1920. Oldest covered bridge in Lane County. Restored in 1990.
Howe through truss bridge on Mosby Creek Road
Open to traffic

Moscow Covered Bridge (Rush County, Indiana)
Built 1886 by E. L. Kennedy
Two-span covered bridge over Flatrock River on CR 900S at Moscow
Destroyed by tornado June 3, 2008. County has voted to rebuild it.

Moscow Mills Bridge (Lincoln County, Missouri)
Abandoned through truss bridge over the Cuivre River at Moscow Mills
Closed to all traffic

Moss Road Bridge (Blount County, Alabama)
Built 1940
Through truss bridge over Calvert Prong Little War on Moss Road
Open to traffic

Mound Road Bridge (Shelby County, Indiana)
Through truss bridge over Flatrock River on Mound Road
Open to traffic

Mount Carmel Bridge (Wabash County, Illinois)
Built 1932; rehabilitated 1987
Through truss bridge over Wabash River on IL 15/IN 64 in Mount Carmel
Open to traffic

Mount Olive Road Covered Bridge (Vinton County, Ohio)
Built 1875 by G. W. Pilcher; rehabilitated 1963
Covered bridge over Middle Fork Salt Creek on TR 8 (Mt. Olive Road)
Open to pedestrians only

Mount Pleasant Covered Bridge (Perry County, Pennsylvania)
Built 1918
Covered bridge over Shermans Creek on Mount Pleasant Road (TR 304)
Open to traffic

Mount Sterling Bridge (Gasconade County, Missouri)
Lost through truss bridge over Gasconade River at Mount Sterling on US 50
Replaced 1979

Mountain Fork River Bridge (McCurtain County, Oklahoma)
Built 1948
Through truss bridge over Mountain Fork River on US 70
Open to traffic

Muddy Creek Old US 65 Bridge (Pettis County, Missouri)
Built ca. 1930
Through truss bridge over Muddy Creek on Claycomb Road (Old US 65) north of Sedalia
Open to traffic

Mulberry Bridge (Crawford County, Arkansas)
Built 1896 by the Wrought Iron Bridge Co.
Derelict through truss bridge over Mulberry River near Mulberry
Derelict

Mull Covered Bridge (Sandusky County, Ohio)
Built 1851; made obsolete by new bridge in 1962 and closed to traffic
Covered bridge on CR 9 southwest of Fremont
Open to pedestrians only

Mullen Covered Bridge (Ashtabula County, Ohio)
Built 1876; rehabilitated 1987-88
Covered bridge over Mill Creek on Doyle Road
Open to traffic

Multnomah Channel Bridge (Multnomah County, Oregon)
Built 1948
Through truss bridge over Multnomah Channel on FAS A668 in Portland
Replaced by a new bridge in June 2008

Munger Bridge (Adams County, Illinois)
Through truss bridge temporarily sitting next to 1000th Street, just north of the Pike County line
Sitting abandoned, propped up on wheels and concrete blocks

Murphy Bridge (Huntington County, Indiana)
Built in 1928 by the Pan American Bridge Company; Restored in 2006.
Parker through truss bridge over Salamonie River on CR 800 South
Open to traffic

Murphysboro Bridge (Jackson County, Illinois)
Built 1942; replaced 2000
Lost through truss bridge over Big Muddy River on Town Creek Road (CH 5/FAS 917) at Murphysboro
Replaced by a new bridge

Murray Baker Bridge (Peoria County, Illinois)
Built 1958; rehabilitated 1984 and 2005
Cantilevered through truss bridge over Illinois River on I-74 in Peoria
Open to traffic

Murray Bridge (Humboldt County, Iowa)
Built 1905 by A.H. Austin; rehabilitated 1982; damaged in car wreck during 2004
Through truss bridge over West Fork Des Moines River on 190th Street, southeast of Bradgate
Closed to traffic

Muscatatuck River IN 256 Bridge (Washington County, Indiana)
Built 1941; rehabilitated 1982
Through truss bridge over Muscatatuck River on IN 256
Open to traffic

Muscatatuck River IN 256 Bridge #2 (Jackson County, Indiana)
Built 1941
Parker through truss bridge over Muscatatuck River on IN 256
Open to traffic

Mystery Bridge (Crawford County, Arkansas)
Lost two-span through truss bridge, possibly over Mulberry River
No longer exists

Mystery Bridge (Scott County, Arkansas)
Lost through truss bridge somewhere in Scott County
No longer exists

Mystery Bridge (Harrison County, Missouri)
Through truss bridge somewhere near Bethany
Unknown status

Mystery Bridge (Faulkner County, Arkansas)
Lost through truss bridge somewhere in Faulkner County
No longer exists

Mystery Bridge (Boone County, Missouri)
Lost through truss bridge somewhere near Easley, possibly over Perche Creek
No longer exists

Mystery Bridge (Washington County, Arkansas)
Lost through truss bridge somewhere in Washington County, possibly over White River
No longer exists

Nachitoch Bluff Bridge (Clark County, Arkansas)
Built 1908 by the Morava Construction Co.; rehabilitated 1980; closed to traffic ca. 1996
Derelict two-span through truss over Little Missouri River, just upstream from I-30
Abandoned, with deck partially missing

Narrows Bridge (Cleburne County, Arkansas)
Built 1961 in conjunction with the creation of the lake
Continuous through truss bridge over Little Red River (Greers Ferry Lake) on AR 16 between Higden and Greers Ferry
Open to traffic

Natural Dam Bridge (Crawford County, Arkansas)
Built 1934 by contractor M.E. Gillioz, replacing an earlier truss bridge built in 1907 by the Illinois Steel Bridge Co.
Two-span through truss bridge over Lee Creek on AR 59 near the community of Natural Dam
Open to traffic

Nebraska City Bridge (Otoe County, Nebraska)
Highway Bridge Built 1930 and Replaced 1983, Railroad bridge built 1887 and was abandoned
Lost through truss bridge over Missouri River/Bnsf Rr on Nebraska 2
Highway bridge replaced by new bridge

Neches River Bridge (Jasper County, Texas)
Built 1943
Through truss bridge over Neches River on US 190
Open to traffic

Neet Bridge (Parke County, Indiana)
Built 1904
Burr arch-truss bridge over Little Raccoon Creek on CR 200E (Bridgeton Road)
Open to pedestrians

Neff's Mill Covered Bridge (Lancaster County, Pennsylvania)
Built 1875
Covered bridge over Pequea Creek on Penn Grant Road
Open to traffic

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

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 (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 1954
Through truss bridge over Neosho River, 0.4 mi. west of Shaw
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 Athens Railroad Bridge (St. Clair County, Illinois)
2 span Parker Through Truss
2 span Parker through truss bridge over Kaskaskia River on Illinois Central Railroad in New Athens
Open to railroad 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 Hope Bridge (Bartholomew County, Indiana)
Built 1913; rehabilitated 1999
Two-span through truss bridge over Flatrock River on CR 400 North in Columbus
Open to traffic

New Hope Covered Bridge (Brown County, Ohio)
Built 1878 by Josiah Bryant
Covered bridge over Whiteoak Creek on Bethel New Hope Road
Open to pedestrians only

New Pakota River Bridge (Gibson County, Indiana)
Built 1915
Through truss bridge over New Pakota River on CR 550 East
Open to traffic

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

Newark Bay Lift Bridge (Essex County, New Jersey)
Built 1924-25; demolished 1980
Lost vertical lift bridge over Newark Bay on the Central Railroad of New Jersey
Lost

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 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

Ninabuck Road Bridge (Dodge County, Wisconsin)
Built ca. 1907; Replaced 1996
Lost Pratt through truss bridge over Crawfish River on Ninabuck Road in Town of Elba
Unknown but it was replaced by new bridge

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

Norfolk Southern Holston River Bridge (Knox County, Tennessee)
Bridge is a replacement built back in the early 1900's, for the original bridge built around the Civil War (old bridge piers are still standing)
Bridge over Holston River on Norfolk Southern Railroad in Mascot
Rusty, but heavily-traveled single span through truss bridge

Norfolk-Southern French Broad Bridge #5 (Cocke County, Tennessee)
Built 1927
Baltimore (Pratt) truss bridge on Norfolk-Southern Railway
Open to traffic

Norfolk-Southern Pigeon River Bridge (Cocke County, Tennessee)
Built 1916 by the American Bridge Company U.S.A.
Howe through truss bridge over Pigeon River on Norfolk-Southern Railway in Newport
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
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 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 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 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 Holston River Bridge (Scott County, Virginia)
Built 1930
Through truss bridge over North Fork Holston River on U.S. 58 - 421
Open to traffic

North Fork Holston River CSX Railroad Bridge (Sullivan County, Tennessee)
Construction started in 1907 by the South and Western Railroad Co., and finished in 1908 by its successor, the Carolina, Clinchfield and Ohio Railroad Company (now CSX)
3-span Howe through truss railroad bridge over North Fork Holston River on CSX Railroad in Kingsport
Open to rail traffic

North Halsted Street Bridge (Cook County, Illinois)
Built 1909
Bascule bridge over North Branch Chicago River Canal on N. Halsted Street in Chicago
Open to traffic

North Park Bridge (Kent County, Michigan)
Build 1903; Altered 1933; Replaced 1991
Lost Pratt through truss bridge over Grand River on North Park Street in Grand Rapids
Replaced by new bridge

North Pole Covered Bridge (Brown County, Ohio)
Built 1875; rehabilitated 1965; damaged by flooding in 1997
Covered bridge over Eagle Creek on North Pole Road (CR 13)
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 (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 1905
Parker through truss bridge over North Wea Creek, 3.5 mi. south and 7.8 mi. west of Louisburg
Closed to all traffic

North Williston Bridge (Chittenden County, Vermont)
Built 1925 by the Standard Engineering & Contracting Co.; closed to traffic in 1990; replaced 1993
Lost through truss bridge over Winooski River on North Williston Road
Replaced by new bridge

Northern Pacific Railroad Overhead Bridge (Morton County, North Dakota)
Bridge replace an earlier Howe Through Truss. Bridge was relocated in 1991 after a modern bridge was built.
Warren through truss bridge on bike path, once carried Burlington Northern RR in Mandan


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

Oak Creek Footbridge (Milwaukee County, Wisconsin)
Through truss bridge over Oak Creek on Pedestrian Walkway in Grant Park in South Milwaukee
Open to pedestrians

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

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