There are 8,085 bridges in this category · Only showing 4,207 bridges with photos
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Functionally obsolete

From: 2015 "Status of the Nation’s Highways, Bridges, and Transit: Conditions and Performance" report to Congress

Functional obsolescence in general is a function of the geometrics (e.g., broad roadway width, load carrying capacity, clearances, approach roadway alignment) of the bridge in relation to the geometrics required by current design standards. The magnitude of such deficiencies determines whether a bridge is classified as “functionally obsolete.”

Morse Bridge (Oxford County, Maine)
Built 1935; rehabilitated 2001
Steel through arch bridge over Androscoggin River on ME 108 in Rumford
Open to traffic

Mosby Road Bridge (Clay County, Missouri)
Built 1919-20 by the Topeka Bridge & Iron Co.
Luten arch bridge over Williams Creek on Mosby Road in Prathersville
Open to traffic

Moshannon Creek Bridge (Clearfield County, Pennsylvania)
Built 1940; rehabilitated 1971
Pony truss bridge over Moshannon Creek on W. Presqueisle Street in Chester Hill
Open to traffic

Mosholu Pkwy Henry Hudson Overpass (Bronx County, New York)
Built 1951
Deck arch bridge over Henry Hudson Parkway (Rte 907v, Rte 907v) on Mosholu Parkway (Rte 908f)
Open to traffic

Mosier Creek Bridge (Wasco County, Oregon)
Built 1920
Concrete arch bridge over Mosier Creek on HWY 100 in Mosier
Open to traffic

Mosier Valley Road Bridge (Tarrant County, Texas)
Built 1939
Bridge on Mosier Valley Road over Hurricane Creek
Open to traffic

Moss Road Bridge (Herkimer County, New York)
Built 1910; rehabilitated 1955
Through truss bridge over Erie Barge Canal on Moss Road
Open to traffic

Motlow Creek Bridge (Spartanburg County, South Carolina)
Built 1922
Concrete arch bridge over Motlow Creek on S-42-866 in Campobello
Open to traffic

Mount Hope Bridge (Newport County, Rhode Island)
Built 1929 by the McClintic-Marshall Co.; rehabilitated 1985
Suspension bridge over Mount Hope Bay on RI 114 in Bristol
Open to traffic

Mount Hope Road Bridge (Tolland County, Connecticut)
Built 1901; rehabilitated 1977; replaced 1998
Warren pony truss with no verticals bridge over Mount Hope River on Mount Hope Road
Trusses relocated to the Nipmuck Trail

Mount Olive Road Covered Bridge 35-82-04 (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 Tabor Road Bridge (Washington County, Indiana)
Built ca. 1930
Concrete arch bridge over Mill Creek on Mount Tabor Road
Open to traffic

Mount Zion Road Bridge (Schuyler County, Illinois)
Timber stringer bridge over BNSF RR on Mount Zion Road (TR 332)
Open to traffic

Mountain Brook Bridge (Cheshire County, New Hampshire)
Built 1939
Stone arch bridge over Mountain Brook on US 202 in Jaffrey
Open to traffic

Moxley Covered Bridge 45-09-01 (Orange County, Vermont)
Built 1883
Covered bridge over First Branch White River on Moxley Rd (C3068) in Chelsea
Open to traffic

Mud Creek Bridge (Custer County, Nebraska)
Built 1915
Pony truss bridge over Mud Creek on a township road, 2 mi. south and 4 mi. east of Mason City
Open to traffic

Mud Creek Bridge (Henderson County, North Carolina)
Built 1941; rehabilitated and widened 1970 but original north concrete ballustrade still exists.
Concrete tee beam bridge over Mud Creek on Us25bus.
Open to traffic

Mud Creek Bridge (Polk County, Iowa)
Steel stringer bridge over Mud Creek on Local road
Open to traffic

Mud Creek Bridge (Polk County, Iowa)
Built 1927
Slab bridge over Mud Creek on Ne 72
Open to traffic

Mud Creek Bridge (Polk County, Iowa)
Built 1936
Concrete tee beam bridge over Mud Creek on NE 27th Avenue
Open to traffic

Mud Creek CR 1100E Bridge (Howard County, Indiana)
Built ca. 1940; replaced 2000
Lost concrete arch bridge over Mud Creek on CR 1100 E
Replaced by new bridge

Mud Run Bridge (Jo Daviess County, Illinois)
Built 1901
Pony truss bridge over Mud Run on Rush Town Road, 5 mi. south of Sw Nora
Intact but closed to all traffic

Muddy Creek Bridge (Nemaha County, Kansas)
Built ca. 1930
Warren pony truss bridge over Muddy Creek, 0.5 mi. south of Woodlawn
Open to traffic

Muddy Creek Bridge (Nemaha County, Kansas)
Built ca. 1930
Warren pony truss bridge over Muddy Creek, 2.8 mi. south of Granada
Open to traffic

Muddy Creek Bridge (Madison County, Kentucky)
Built ca. 1930
Through truss bridge over Muddy Creek on Meadowbrook Road
Open to traffic

Muddy Creek Bridge (Furnas County, Nebraska)
Built 1930; rehabilitated 1974
Pony truss bridge over Muddy Creek on CR 422, 2 mi. west of Arapahoe
Open to traffic

Muddy Creek Bridge (Madison County, Kentucky)
Built 1956
Concrete tee beam bridge over Muddy Creek on KY-52
Open to traffic

Muddy Fork CR 220W Bridge (Decatur County, Indiana)
Built ca. 1890
Stone arch bridge over Muddy Fork Sand Creek on CR 220W
Open to traffic

Muddy Fork CR 250S Bridge (Decatur County, Indiana)
Built ca. 1890
Three-span stone arch bridge over Muddy Fork Sand Creek on CR 250 South
Open to traffic

Muddy Fork I-65 Northbound Bridge (Clark County, Indiana)
Built 1958
Three-span concrete arch bridge over Muddy Fork on Northbound I-65
Open to traffic

Muddy Fork I-65 Southbound Bridge (Clark County, Indiana)
Built 1958
Three-span concrete arch bridge over Muddy Fork on Southbound I-65
Open to traffic

Muddy Fork US 31 Bridge (Clark County, Indiana)
Built 1932; rehabilitated 1984
Three-span concrete arch bridge over Muddy Fork on US 31
Open to traffic

Muddy Plum Trib. Bridge (Jo Daviess County, Illinois)
Built 1950
Slab bridge over Trib. to Muddy Plum on S. Town Hall Road
Open to traffic

Muddy Run Bridge (Franklin County, Pennsylvania)
Built 1963; rehabilitated 1963
Steel stringer bridge over Muddy Run on Muddy Run Road
Open to traffic

Mulberry River AR 23 Bridge (Franklin County, Arkansas)
Built 1935 by McEachin and McEachin, Inc., of Little Rock
Three-span pony truss bridge over Mulberry River on AR 23
Open to traffic

Mulberry River Bridge (Franklin County, Arkansas)
Built 1940, Partially destroyed by flooding 1971 and rebuilt
Slab bridge over Mulberry River on Low Bridge Rd
Open to One Lane traffic with 3 Ton Weight Limit

Mulberry Street Bridge (Dauphin County, Pennsylvania)
Built 1909
Closed-spandrel arch bridge over Sr 0230 (Cameron Street),Amtrak on Sr 3012; Mulberry Street
Open to traffic

Mulberry Street Ramp Bridge (Dauphin County, Pennsylvania)
Built 1907-09; rehabilitated 1957
Concrete arch bridge over Paxton Creek on Mulberry Street Ramp in Harrisburg
Open to traffic

Mulholland Drive Viaduct (Los Angeles County, California)
Built 1940
Concrete tee beam bridge over Hollywood Freeway (US 101) on Mulholland Drive in Los Angeles
Open to traffic

Mulkey Creek NE 671 Bridge (Johnson County, Missouri)
Pony truss bridge over Mulkey Creek on CR NE 671
Open to traffic

Mullen Covered Bridge 35-04-16 (Ashtabula County, Ohio)
Built 1876; rehabilitated 1987-88
Covered bridge over Mill Creek on Doyle Road
Open to traffic

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

Mustin Creek Bridge (Howell County, Missouri)
Built 1922
Slab bridge over Mustin Creek on CR 8690
Open to traffic

Mutton Creek CR 300N Bridge (Jennings County, Indiana)
Built 1910
Deck arch bridge over Mutton Creek on County Road 300 North
Open to traffic

Myers Creek Bridge (Forrest County, Mississippi)
Built 1934
Steel stringer bridge over Myers Creek on US 49 (Northbound Traffic)
Open to traffic

Myrtle Avenue Bridge (Duval County, Florida)
Built 1955
Steel through arch bridge over Myrtle Avenue on I-95 in Jacksonville
Open to traffic

Myrtle Creek Bridge (Douglas County, Oregon)
Built 1930
Stringer bridge over Myrtle Creek on OR-99 (Old Pacific Highway) in Myrtle Creek
Open to traffic

Mystic River Bascule Bridge (New London County, Connecticut)
Built 1922
Bascule bridge over Mystic River on US 1 West Main Street at Mystic
Open to traffic

N. Pinckney Street (Union County, South Carolina)
Built 1908
Bridge over Buffalo, Union & Carolina Railroad on N. Pinckney Street
Open to traffic

Nacimiento Lake Drive Bridge (Monterey County, California)
Built 1921
Pratt Through truss bridge over San Antonio River on Nacimiento Lake Drive
Open to traffic

Narada Falls Bridge (Lewis County, Washington)
Built 1928
Arch bridge over Paradise River on Paradise Connection
Open to traffic

Narrow Bay Bridge (Suffolk County, New York)
Built 1959
Bascule bridge over Narrow Bay on Floyd Parkway Extension in Shirley
Open to traffic

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

NASA Causeway (Brevard County, Florida)
Built 1964
Deck plate girder bridge over Indian River on NASA Causeway
Open to traffic

Natalbany River Bridge (Tangipahoa Parish, Louisiana)
Built ca. 1950
Through truss bridge over Natalbany River on La Rock Road
Open to traffic

Natchez Bridge (Adams County, Mississippi)
Original bridge (now westbound) opened September 26, 1940; eastbound span opened June 21, 1988
Pair of cantilevered through truss bridges over the Mississippi River on US 84/US 425 at Natchez
Open to traffic

Natchez Trace Birdsong Hollow Arch Bridge (Williamson County, Tennessee)
Built 1995 to bridge the gap over the Little South Fork of the Harpeth River and State Highway 96, one of the last segments to be built on the Natchez Trace Parkway
Concrete double-arch segmental bridge on the Natchez Trace Parkway at Birdsong Hollow in Williamson County Tennessee
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
Closed pending demolition

Navarro Street Bridge (N) (Bexar County, Texas)
Built 1921
Concrete tee beam bridge over San Antonio River on Navarro Street
Open to traffic

Navarro Street Bridge (S) (Bexar County, Texas)
Built 1922
Concrete arch bridge over San Antonio River on Navarro Street in San Antonio
Open to traffic

Navigation Boulevard Underpass (Harris County, Texas)
Built 1936
Slab bridge over Navigation Blvd. on Commerce Street
Open to traffic

Neal Branch Bridge (Wilson County, Tennessee)
Built 1915
Arch bridge over Neal Branch on NFA A282
Open to traffic

Neawanna Creek Bridge (Clatsop County, Oregon)
Built 1930
Concrete deck girder bridge over Neawanna Creek on U.S. 101 in Seaside
Open to traffic

Necanicum River Bridge (Clatsop County, Oregon)
Built 1952; rehabilitated 1986
Stringer bridge over Necanicum River on Ave G
Open to traffic

Necarney Creek Bridge (Tillamook County, Oregon)
Built 1937
Steel stringer bridge over Necarney Creek on US 101
Open to traffic

Neeley Road Bridge (Sonoma County, California)
Built 1930
Wooden bridge over SIDEHILL VIADUCT #1 on Neeley Road
Open to traffic

Neff's Mill Covered Bridge 38-36-22 (Lancaster County, Pennsylvania)
Built 1875
Covered bridge over Pequea Creek on Penn Grant Road
Open to traffic

Negley Bridge (Columbiana County, Ohio)
Built 1882 by the Columbia Bridge Works of Dayton, Ohio
Through truss bridge over North Fork Little Beaver Creek on Carmel Achor Road (TR 1026)
Open to traffic

Nehalem River Bridge (Clatsop County, Oregon)
Built 1939
Concrete arch bridge over Nehalem River on US 26
Open to traffic

Nehalem River Bridge (Columbia County, Oregon)
Built 1938
Parker through truss bridge over Nehalem River on OR 47 in Vernonia
Open to traffic

Nela Ave. Bridge (Orange County, Florida)
Built 1926; rehabilitated 1982
Concrete tee beam bridge over Lake Conway Connector on Nela Avenue
Open to traffic

Neligh Mill Bridge (Antelope County, Nebraska)
Built 1910 by the Western Bridge & Construction Co. Collapsed into river in June 2011, restoration planned with donation made end of 2013..
Through truss bridge over Elkhorn River on Elm Street at Neligh
Collapsed into river, but remains and is feasible to restore.

Nelson Mountain Covered Bridge 37-20-06 (Lane County, Oregon)
Built 1928; rehabilitated 1984
Covered Howe through truss bridge over Lake Creek on Nelson Mountain Road
Open to traffic

Neosho River Bridge (Coffey County, Kansas)
Built 1926
Two-span Marsh arch bridge over Neosho River on 19th Lane, 0.2 mi. east of Hartford
Open to traffic

Neosho River Bridge (Ottawa County, Oklahoma)
Built 1937; replaced 1997
Lost K-truss bridge over Neosho River on US 69 in Miami
Replaced by prestressed concrete girder bridge in 1997.

Neosho River K-47 Bridge (Neosho County, Kansas)
Built 1937, demolished ca. 2013-2014
Lost cantilever truss bridge over Neosho River on K-47
Replaced by a new bridge

Neshannock Creek Bridge (Mercer County, Pennsylvania)
Built 1927; rehabilitated 1990
Pony truss bridge over Neshannock Creek on PA 2002 (Leesburg Road)
Open to traffic

Netherland Inn Road Bridge (Sullivan County, Tennessee)
Replaced a steel truss bridge that collapsed into the river in 1937; bypassed by new bridge in 2009
Warren deck truss bridge over North Fork Holston River on Netherland Inn Road
Open to pedestrians only

Neville Island Bridge (Allegheny County, Pennsylvania)
Built 1976; rehabilitated 2008
Steel through arch bridge over Ohio River on I-79
Open to traffic

Nevins Covered Bridge 14-61-05 (Parke County, Indiana)
Built 1920
Covered bridge over Little Raccoon Creek on CR S130E
Open to traffic

New Baltimore Covered Bridge 38-56-09 #2 (Somerset County, Pennsylvania)
Replaced a covered bridge buit in 1879
Multiple Kingpost through truss bridge over Raystown Br of Juniata River on TR812 Town Hill Rd.
Open to traffic

New Bedford-Fairhaven Middle Bridge (Bristol County, Massachusetts)
Swing span built 1897-99
Through truss swing bridge over Acushnet River on US 6 at New Bedford
Open to traffic

New Brownsville Covered Bridge 14-03-08 (Bartholomew County, Indiana)
Built 1840; relocated and shortened 1986; rehabilitated 1991
Covered bridge over a branch of Driftwood River in Mill Race Park
Open to traffic

New Carlisle Pike Bridge (Clark County, Ohio)
Built 1958
Pony truss bridge on New Carlisle Pike
Demolished

New England Central Railroad Bridge (Windham County, Vermont)
Built 1919
Pony truss bridge over New England Central Railroad on C3052 in Putney
Open to 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 Keokuk-Hamilton Bridge (Lee County, Iowa)
Built 1985
Steel stringer bridge over Mississippi River & Rr,R on Us 136 in Keokuk
Open to traffic

New Madrid County Road 626 Bridge (New Madrid County, Missouri)
Built 1954; rehabilitated 1986
Wooden deck bridge over Otter Slough Ditch on CR 626 southwest of Matthews
Open to one-lane traffic with a 13 ton weight limit

New River Bridge (Broward County, Florida)
Built 1960
Bascule bridge over New River on SE 3RD AVE in Fort Lauderdale
Open to traffic

New River Bridge (Broward County, Florida)
Built 1964
Bascule bridge over New River on SW 7th Avenue in Fort Lauderdale
Open to traffic

New York Street Memorial Bridge (Kane County, Illinois)
Built 1931; rehabilitated 1992
Bridge over Fox River on New York Street in Aurora
Open to traffic

Newberry Ford Bridge (Decatur County, Indiana)
Built ca. 1890
Three-span stone arch bridge over Vernon Fork Muscatatuck River on CR 480 East
Open to traffic

Newburgh-Beacon Bridge (Orange County, New York)
Built 1963, rehabilitated 1984. Second span built 1980;
Through truss bridge over Grand Avenue, Hudson River on Rte I84
Open to traffic

Newby Road Bridge (Wilson County, Tennessee)
Built 1914
Two-span arch bridge over Sinking Creek on Newby Street in Lebanon
Open to traffic

Newell Covered Bridge 45-12-10 (Washington County, Vermont)
Built 1872; rehabilitated 1979
Covered bridge over Cox Brook on Cox Brook Road (C2003) in Northfield Falls
Open to traffic

Newfield Covered Bridge 32-55-01 (Tompkins County, New York)
Built 1853; rehabilitated 1972
Town Lattice through truss with supplemental arches over West Branch Cayuga Inlet on Covered Bridge Street in Newfield Hamlet
Open to traffic

Newport Bridge (Newport County, Rhode Island)
Built 1969
Suspension bridge over East Passage Narragansett Bay on RI 138 in Newport
Open to toll traffic

Newport Covered Bridge 14-83-04 (Vermillion County, Indiana)
Built 1885, rehabilitated 1983
Covered bridge over Little Vermillion River on CR 50 North
Open to traffic

Newton Street Bridge (Middlesex County, Massachusetts)
Built 1877; rehabilitated 1951
Stone arch bridge over Charles River on Newton Street
Open to traffic

Newtown Creek Bridge (Bucks County, Pennsylvania)
Built in 1875 by S. R. Wilcus
Stone arch bridge over Newtown Creek on Center Street in Newtown
Open to traffic