There are 7,794 bridges in this category · Only showing 4,097 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.”

Money Creek Bridge (McLean County, Illinois)
Built 1929
Concrete tee beam bridge over Money Creek on FAS 473
Bypassed and open to pedestrians.

Monitor-Mckee Road Bridge (Marion County, Oregon)
Built 1950
Parker through truss bridge over Pudding River on Monitor-Mckee Road
Open to traffic

Monocacy Bridge (Berks County, Pennsylvania)
Built 1912; rehabilitated 1954
Concrete arch bridge over Monocacy Creek on TR 458
Open to traffic

Monocacy River Bridge (Frederick County, Maryland)
Built 1931
Through truss bridge over Monocacy River on MD 28
Open to traffic

Monocacy River Bridge (Frederick County, Maryland)
Built 1930; rehabilitated 1980
Through truss bridge over Monocacy River on MD 355


Monroe Street Bridge (Cook County, Illinois)
Built 1919
Bascule bridge over South Branch Chicago River on W. Monroe Street in Chicago
Open to traffic

Monroe Street Bridge (Monroe County, Michigan)
Built 1927; Subsequent work 1970 & 1984; rehabilitated 1990
Concrete cantilever bridge over Raisin River on M-125 in Monroe
Open to traffic

Monroe Street Bridge (Bergen County, New Jersey)
Built 1908; rehabilitated 1997
Concrete arch bridge over Passaic River on Monroe Street in Garfield
Open to traffic

Montevideo Road Bridge (Montgomery County, Maryland)
Built 1910; rehabilitated 1989
Pony truss bridge over Dry Seneca Creek on Montevideo Road in Poolesville
Open to traffic

Montgomery Avenue Bridge at Cynwyd, PA (Montgomery County, Pennsylvania)
Built 1926; rehabilitated ca. 1950
Concrete arch bridge over SEPTA track on Montgomery Avenue in Philadelphia
Open to traffic

Montgomery Covered Bridge 45-08-14 (Lamoille County, Vermont)
Built 1896; Rehabilitated 1976
Covered Queenspost bridge over North Branch Lamoille River on C3014
Open to traffic

Montgomery Ferry Drive Bridge (Fulton County, Georgia)
Built 1924
Stone arch bridge over Clear Creek on Montgomery Ferry D in Atlanta
Open to traffic

Montgomery Woods Bridge (Mendocino County, California)
Built 1971
Steel stringer bridge over South Fork Big River on Orr Springs Road
Open to traffic

Montlake Bridge (King County, Washington)
Built 1925; rehabilitated 1999
Bascule bridge over Montlake Cut on WA 513 in Seattle
Open to traffic

Montopolis Bridge (Travis County, Texas)
Built 1938
Camelback through truss bridge over Colorado River on US 183 Southbound Frontage Road in Austin
Open to traffic

Montoursville Bridge (Lycoming County, Pennsylvania)
Built 1931; rehabilitated 1994
Three-span through truss bridge over Loyalsock Creek on PA 2014 in Montoursville
Open to traffic

Moody Creek Bridge (Shasta County, California)
Built 1918
Concrete tee beam bridge over Moody Creek on Cascade Blvd
Open to traffic

Moody Street Bridge (Middlesex County, Massachusetts)
Built 1917; rehabilitated 1943
Deck arch bridge over Charles River on Moody Street
Open to traffic

Moore's Mill Creek Bridge (Lee County, Alabama)
Built 1933
Stone arch bridge over Moore'S Mill Creek on Park Road
Open to traffic

Moores Mill Road Bridge (Fulton County, Georgia)
Built 1924
Steel stringer bridge over Peachtree Creek on Moores Mill Road
Open to traffic

Morehead Bridge (Jackson County, Iowa)
Built or relocated 1982
Through truss bridge over South Fork Maquoketa River on 74th Street
Open to traffic

Morehouse Drive over Merritt Parkway Bridge (Fairfield County, Connecticut)
Built 1939
Concrete rigid frame bridge over Merritt Parkway (CT 15) on Morehouse Drive
Open to traffic

Morelli Bridge (Lewis and Clark County, Montana)
Built 1881; rehabilitated 1974
Timber stringer bridge over Benton Ave on Howie Street
Open to traffic

Morgan Covered Bridge 45-08-07 (Lamoille County, Vermont)
Built 1887; rehabilitated 1898 and 1980
Covered bridge over North Branch Lamoille River on Morgan Bridge Road in Belvidere
Open to traffic

Morgan Ford Bridge (Henry County, Virginia)
Constructed 1953 from parts from older bridges. The center Pratt through truss span was built in 1887.
Through truss bridge over Smith River on Morgan Ford Rd (Route 622) in Sandy Level
Open to traffic

Morganford Road UPRR Overpass (St. Louis, Missouri)
Built in 1946; rehabilitated in1952. Replaced by UCEB in 1995.
Lost girder bridge over the Union Pacific Railroad on Morganford Road in St. Louis
Replaced by UCEB

Morganza Floodway Bridge (Pointe Coupee Parish, Louisiana)
Built 1945
Concrete tee beam bridge over Morganza Floodway on US-190
Open to traffic

Morganza Road Bridge (Washington County, Pennsylvania)
Built 1924; rehabilitated 1983
Concrete arch bridge over Chartiers Creek on PA 1009 in Cecil
Open to traffic

Morganza Spillway Bridge (Pointe Coupee Parish, Louisiana)
Built 1954
Concrete tee beam bridge over Morganza Spillway on LA 1
Open to traffic

Mormon Bridge (Douglas County, Nebraska)
Eastbound bridge built 1952; westbound built 1975
Pair of through truss bridges over Missouri River on I-680 in Omaha
Open to traffic

Morris Bridge (Livingston County, Illinois)
Built 1921
Concrete pony/through girder bridge over Short Point Creek on CR 750N Road 1.5 mi. E of Long Point
Open to traffic

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

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