There are 7,618 bridges in this category · Only showing 4,011 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.”

Masemore Road Bridge (Baltimore County, Maryland)
Built 1898; rehabilitated 2000
Through truss bridge over Gunpowder Falls on Masemore Road
Open to traffic

Mashel River Bridge (Pierce County, Washington)
Built 1937
Beam bridge over Mashel River on Alder Cutoff Road
Open to traffic

Massac Creek Road Bridge (Massac County, Illinois)
Concrete pony/through girder bridge over Massac Creek on Massac Creek Road
Open to traffic

Matfield River Bridge (Plymouth County, Massachusetts)
Built 1884; rehabilitated 1978
Stone arch bridge over Matfield River on Bridge Street
Open to traffic

Mathers Bridge (Brevard County, Florida)
Built 1927; rehabilitated 2005
Swing bridge over Banana River on Banana River Drive (CR 3) in Indian Harbour Beach
Open to traffic

Mathews Bridge (Duval County, Florida)
Built 1953
Cantilever Through truss bridge over St. Johns River on FL 10A in Jacksonville
Open to traffic

Mattole Road Bridge (Humboldt County, California)
Built 1935
Concrete arch bridge over Mattole River on Mattole Road
Open to traffic

Mauch Chunk Street Bridge (Schuylkill County, Pennsylvania)
Built 1893; rehabilitated 1997
Stone arch bridge over Little Schuylkill River on Mauch Chunk Street in Tamaqua
Open to traffic

Maumee River Bridge (Wood County, Ohio)
Built 1948; rehabilitated 1988
Through truss bridge over Maumee River on CR 64 in Waterville
Open to traffic

Max L. Wilder Memorial Bridge (Sagadahoc County, Maine)
Built 1950; rehabilitated 1985
Through truss bridge over Sasonoa River on Arrowsic Road (ME 127) in Arrowsic
Open to traffic

Maxwell Boulevard Bridge (Montgomery County, Alabama)
Built 1935
Steel stringer bridge over SCL LN RR on Maxwell Blvd
Open to traffic

Maxwell Creek Bridge (Madison County, Arkansas)
Built 1934
Steel stringer bridge over Maxwell Creek on AR 21
Open to traffic

Maywood Bridge (Lewis County, Missouri)
Built 1894 by the St. Louis Bridge & Iron Co.; replaced 1999
Lost through truss bridge over Middle Fabius River on CR 587
Replaced by new bridge

McAllister's Covered Bridge 14-61-16 (Parke County, Indiana)
Built 1914, rehabilitated 1977
Covered bridge over Little Raccoon Creek on CR400S
Open to traffic

McBee Bridge (Knox County, Tennessee)
1931
Spectacular Concrete Open-Spandrel Through Arch (Tied Arch) bridge over Holston River on County Road 1262
Open to traffic

Mccan Mill Road Bridge (Hunterdon County, New Jersey)
Built 1923
Pony truss bridge over Lamington River on Mccan Mill Road
Open to traffic

McCauley Road Bridge (Cecil County, Maryland)
Built 1884; rehabilitated 1993
Pony truss bridge over Basin Run on McCauley Road
Open to traffic

McClaren Road Bridge (Allegheny County, Pennsylvania)
Built 1948
Concrete tee beam bridge over Montour Run on McClaren Road
Open to traffic

McClellan Street - US 9 Overpass (Essex County, New Jersey)
Built 1946; Reconstructed 1994
Steel stringer bridge over US 9 on McClellan Street
Open to traffic

McClure Tunnel (Los Angeles County, California)
Built 1935
Tunnel on I-10 in Santa Monica
Open to traffic

McColly Covered Bridge 35-46-01 (Logan County, Ohio)
Built 1876 by the Anderson Green Co.; Reinforced with steel 1958; Rehabilitated 2000
Three-span covered bridge over Great Miami River on CR 13
Open to traffic

McConahy Road Bridge (Lawrence County, Pennsylvania)
Built 1912, rebuilt in 2017
Concrete arch bridge over a branch of Taylor Run on McConahy Road
Open to traffic

McConnell's Mill Covered Bridge 38-37-01 (Lawrence County, Pennsylvania)
Built 1874; rehabilitated 1957 and 1998
Covered bridge over Slippery Rock Creek in McConnells Mill State Park
Open to traffic

McCord Street Overpass (Marion County, Illinois)
Built 1986 as a project to put IL 161 on a new alignment in Centralia
Steel stringer bridge over Illinois Central Railroad and Hickory Street on IL 161 WB in Centralia
Open to traffic

McCormick Run Bridge (Columbiana County, Ohio)
Built 1950; rehabilitated 1988
Pony truss bridge over West Fork Little Beaver on McCormick Run (TR 781)
Open to traffic

McCormick's Creek Park Road Bridge (Owen County, Indiana)
Built 1934; rehabilitated 1969
Stone arch bridge over McCormick's Creek in Mc Cormick's Creek State Park
Open to traffic

McCracken Creek Bridge (Hendricks County, Indiana)
Built ca. 1910
Concrete arch bridge over McCracken Creek on CR 1100 South
Open to traffic

McCullough Creek CR 45 (Henley-Deemer Rd.) Bridge (Scioto County, Ohio)
Built 1940; rehabilitated 1993
Lost Pony truss bridge over McCullough Creek on CR 45 (Henley-Deemer Rd.)
Replaced by a new bridge

McCullough Ford Bridge (Decatur County, Indiana)
Complted October 1885 for $1,535.83
Stone arch bridge over a branch of Fall Fork Clifty Creek on CR 600 West
Open to traffic

McCune Creek Bridge (Solano County, California)
Built 1911; rehabilitated 1951, abandoned unknown year with road re-alignement
Abandoned Concrete box bridge over McCune Creek on old Winters Road
Close to traffic

McCutcheon Road Bridge (St. Louis County, Missouri)
Built in 1944; replaced in 2008 as part of MoDOT's "New I-64 Project"
Lost concrete frame bridge over I-64/US 40 on McCutcheon Road in Ladue
Replaced by a new bridge

McDaniel Avenue Bridge (Greenville County, South Carolina)
Built 1938
Slab bridge over Abandoned SCL Railroad R/W on S-23-14
Open to traffic

McDonald Bridge (Columbia County, Oregon)
Built 1914, Replaced 2004
Truss bridge over Milton Creek on Milton Way in St. Helens
Replaced by a pre-cast concrete slab bridge in 2004

McDonough Street Bridge (Will County, Illinois)
Built 1933 by the Mississippi Valley Structural Steel Co.; rehabilitated 1987
Bascule bridge over Des Plaines River on McDonough Street (US 6/52) in Joliet
Open to traffic

McFarland Road Bridge (Benton County, Oregon)
Built 1963
Polygonal Warren pony truss bridge over Muddy Creek on McFarland Road
Open to traffic

McGee Creek Bridge (Hood River County, Oregon)
Built 1952
Wooden Kingpost pony truss bridge over McGee Creek on Lolo Pass Road
Open to traffic

McGrath Highway Bridge (Middlesex County, Massachusetts)
Built 1926 (NBI says 1908); rehabilitated 1983
Through truss bridge over MBTA/BMRR on MA 28 (McGrath Highway) in Somerville
Open to traffic

Mchargue Ditch CR 150S Bridge (Jackson County, Indiana)
Built ca. 1920; rehabilitated 1997
Pony truss bridge over Mchargue Ditch on County Road 100 South
Open to traffic

McKay Bridge (Shelby County, Indiana)
Built ca. 1915
Concrete arch bridge over Conns Creek on CR 300 South
Open to traffic

Mckay Creek Bridge (Umatilla County, Oregon)
Built 1923
Stringer bridge over Mckay Creek on Schroeder Road (Old US 395)
Open to traffic

McKee Street Bridge (Harris County, Texas)
Built 1932
Concrete girder bridge over Buffalo Bayou on McKee Street in Houston
Open to traffic

McKees Rocks Bridge (Allegheny County, Pennsylvania)
Built 1931; rehabilitated 1987
Steel through arch bridge over Ohio River on Chartiers Avenue in Pittsburgh
Open to traffic

McKees Rocks Bridge - Railroad Spans (Allegheny County, Pennsylvania)
Built 1931; rehabilitated 1987
Steel through arch bridge over CSX Railroad on SR 3104 (Mckees Rocks Bridge)
Open to traffic

McKeesport-Duquesne Bridge (Allegheny County, Pennsylvania)
Built 1927 by the American Bridge Co.
Through truss bridge over the Monogahela River on PA 2114 at Duquesne in North Versailles
Open to traffic

Mckennon Lane Bridge (Union County, Oregon)
Built 1925, Replaced 2004
Truss bridge over Grande Ronde River on Mckennon Lane
Replaced by a pre-cast concrete girder bridge in 2004

McKenzie Creek MO 49 Bridge (Wayne County, Missouri)
Built 1929
Pony truss bridge over McKenzie Creek on MO 49 south of Gads Hill
Open to traffic

McKinley Bridge (St. Louis, Missouri)
Built 1910, closed to traffic in October 2001, reopened in 2007
Through truss bridge over the Mississippi River at St. Louis
Open to traffic

McKinstry's Mills Bridge (Carroll County, Maryland)
Built 1908; rehabilitated 1997
Pony truss bridge over Sams Creek on Pearre Road
Open to traffic

McMillan Street Bridge (Hamilton County, Ohio)
Built 1937
Steel rigid frame bridge over US 42 on Mcmillan Street
Open to traffic

McMillin Bridge (Pierce County, Washington)
Built 1934. Bypassed by a new vehicular bridge and left in place in 2015.
Concrete truss bridge over Puyallup River on WA 162 in McMillin
Open to pedestrians only

MD222 Octoraro Creek Bridge (Cecil County, Maryland)
build date unknown, rehabilitated in 1930
Steel stringer bridge over Octoraro Creek on Md 222
Open to traffic

ME-127 Overpass (Sagadahoc County, Maine)
Built 1949; rehabilitated 1986
Steel stringer bridge over Mdot Rr on Route 127
Open to traffic

Meadow Creek Bridge (Greene County, Tennessee)
Built ca. 1920
Concrete arch bridge over Meadow Creek on Allens Bridge Road
Open to traffic

Meadow Street Bridge (Berkshire County, Massachusetts)
Built 1954
Pony truss bridge over Housatonic River on Meadow Street in Lee
Open to traffic

MEIER RD 861 over BOB'S CR (Lincoln County, Missouri)
Bridge over Bob's Creek on Meier Road
Open to traffic

Meiser/Globe Mills Bridge (Snyder County, Pennsylvania)
Built 1941; rehabilitated 1995 and 2011
Through truss bridge over Middle Creek on PA 1007
Open to traffic

Melblanc Road Bridge (Brown County, Ohio)
Built ca. 1950
Pony truss bridge over West Fork of Ohio Brush C on TR 201
Open to traffic

Melita Road Bridge (Sonoma County, California)
Built 1915
Closed spandrel Concrete arch bridge over Santa Rosa Creek on Melita Road in Santa Rosa
Open to traffic

Memorial Bridge (New Haven County, Connecticut)
Built 1889 by John Beattie
Stone arch bridge over Wepawaug River on CT 162 (New Haven Avenue) in Milford
Open to traffic

Memorial Bridge (Roanoke, Virginia)
Built 1926 by W.W. Boxley and Company; Rehabilitated 2003
Concrete arch bridge over Roanoke River on Memorial Ave. (US 11) in Roanoke
Open to traffic

Meramec River MO 21 Bridge (St. Louis County, Missouri)
Built 1940; rehabilitated 2010
Steel through arch bridge over the Meramec River on Tesson Ferry Road (Missouri State Highway 21) at the St. Louis / Jefferson County line
Open to four lanes of traffic

Mercer Street Bridge (Crawford County, Pennsylvania)
Built 1936; rehabilitated 1984
Through truss bridge over French Creek on Mercer Street in Meadville
Open to traffic

Mercer's Mill Covered Bridge 38-36-38 / 38-15-19 (Lancaster County, Pennsylvania)
Built 1880
Covered bridge over E Octoraro Creek on Creek Road
Open to traffic

Meriden Covered Bridge 29-10-08 (Sullivan County, New Hampshire)
Built 1880; Restored 1963
Multiple Kingpost through truss bridge over Bloods Brook on Colby Hill Road
Open to traffic

Merritt Parkway - Norwalk River Bridge (Fairfield County, Connecticut)
Built 1938; rehabilitated 1988
Concrete arch bridge over Norwalk River on Merritt Parkway (CT 15) in Norwalk
Open to traffic

Merritt Parkway Grumman Avenue Bridge (Fairfield County, Connecticut)
1938 Concrete rigid frame bridge over Wilton Rd on Merritt Parkway
Open to traffic

Merritt Parkway over Bayberry Lane Bridge (Fairfield County, Connecticut)
Built 1939
Concrete arch bridge over Bayberry Lane on Merritt Parkway (CT 15) in Westport
Open to traffic

Merritt Parkway over Black Rock Turnpike Bridge (Fairfield County, Connecticut)
Built 1938
Concrete rigid frame bridge over Black Rock Turnpike (CT 58) on Merritt Parkway (CT 15)
Open to traffic

Merritt Parkway over Chestnut Hill Road Bridge (Fairfield County, Connecticut)
Built 1937
Concrete arch bridge over Chestnut Hill Road (CT 53) on Merritt Parkway (CT 15) in Norwalk
Open to traffic

Merritt Parkway over Cross Highway Bridge (Fairfield County, Connecticut)
Built 1938
Concrete arch bridge over Cross Highway on Merritt Parkway (CT 15) in Fairfield
Open to traffic

Merritt Parkway over Huntington Road Bridge (Fairfield County, Connecticut)
Built 1940
Rigid frame bridge over Huntington Road on the Merritt Parkway (CT 15)
Open to traffic above and below

Merrymeeting River Bridge (Belknap County, New Hampshire)
Built 1934
Concrete rigid frame bridge over Merrymeeting River on Nh 11
Open to traffic

Meshoppen Creek Bridge (Wyoming County, Pennsylvania)
Built 1934; rehabilitated ca. 1985
Through truss bridge over Meshoppen Creek on PA 267 in Meshoppen
Open to traffic

Metaline Falls Bridge (Pend Oreille County, Washington)
Built 1951
Deck truss bridge over Pend Oreille River on WA 31 in Metaline Falls
Open to traffic

Metamora Bridge (Franklin County, Indiana)
Built 1932; rehabilitated 1977; replaced 2000
Lost three-span through truss bridge over Whitewater River on US 52
Replaced by new bridge

Methow River Bridge (Okanogan County, Washington)
Built 1929; rehabilitated 1950
Through truss bridge over Methow River on WA 20 in Winthrop
Open to traffic

Miami River Bridge (Miami-Dade County, Florida)
Built 1929
Bascule bridge over Miami River on SW 1st Street in Miami
Open to traffic

Miami River Bridge (Miami-Dade County, Florida)
Built 1950
Bascule bridge over Miami River on NW 36th Street in Hialeah
Open to traffic

Miami River Bridge (Miami-Dade County, Florida)
Built 1928
Bascule bridge over Miami River on NW 17th Avenue in Miami
Open to traffic

Michigan Bar Road Bridge (Sacramento County, California)
Built 1947
Deck truss bridge over Cosumnes River on Michigan Bar Road in Rancho Murieta


Michigan Street Bridge (Milwaukee County, Wisconsin)
Built 1978
Vertical lift bridge over Milwaukee River on Michigan Street in Milwaukee
Open to traffic

Middle Creek Bridge (Miami County, Kansas)
Built 1914 by the Topeka Bridge & Iron Co.
Concrete arch bridge over Jake's Branch of Middle Creek on 335th Street, 7.0 mi. south and 2.1 mi. west of Louisburg
Open to traffic

Middle Fork AR 7 Bridge (Garland County, Arkansas)
Built 1933 by the Ault-Rich Construction Co. of Cassville, Missouri
Two-span open-spandrel arch bridge over Middle Fork Saline River on AR 7
Open to two-lane traffic

Middle Fork Blue River-Martinsburg Rd. Bridge (Washington County, Indiana)
Built ca. 1920; rehabilitated 1965; replaced 1993
Lost concrete arch bridge over Middle Fork Blue River on Martinsburg Road
Replaced by new bridge

Middle Fork Clifty Creek Bridge (Decatur County, Indiana)
Built ca. 1890
Two-span stone arch bridge over Middle Fork Clifty Creek on CR 225 East
Open to traffic

Middle Fork Kentucky River KY 30 Bridge (Breathitt County, Kentucky)
Built 1935
Pratt through truss bridge over Middle Fork Kentucky River on KY 30
Open to traffic

Middle Fork Saline River Bridge (Garland County, Arkansas)
Built 1933
Concrete tee beam bridge over Middle Fork Saline River on SH 7
Open to traffic

Middle Fork Smith River Bridge (Del Norte County, California)
Built 1925; rehabilitated 1972
Concrete arch bridge over Middle Fork Smith River on US 199
Open to traffic

Middle Fork Wildcat Creek SR 26 Bridge (Tippecanoe County, Indiana)
Built 1929; rehabilitated 1972; replaced 1999
Lost pony truss bridge over Middle Fork Wildcat Creek on IN 26
Replaced by new bridge

Middle Fork-South Boston Road Bridge (Washington County, Indiana)
Built ca. 1930
Lost pony truss bridge over Middle Fork Blue River on Canton-South Boston Road
Replaced by a new bridge

Middle Fork. Beargrass Cre Bridge (Jefferson County, Kentucky)
Built 1940
Concrete tee beam bridge over Middle Fork. Beargrass Cre on Lyndon Lane
Open to traffic

Middle River Bridge (Adair County, Iowa)
Built ca. 1920; rehabilitated 1993
Through truss bridge over Middle River on 320th Street
Open to traffic

Middle River Bridge (Adair County, Iowa)
Built 1915; rehabilitated 1930
Pony truss bridge over Middle River on Sheldon Avenue
Open to traffic

Middle River Bridge (Adair County, Iowa)
Built 1950
Through truss bridge over Middle River on County Road G39
Open to traffic

Middle River Bridge (Adair County, Iowa)
Built ca. 1950
Pony truss bridge over Middle River on Riverside Avenue
Open to traffic

Middle River Bridge (Madison County, Iowa)
Built ca. 1930; rehabilitated 1948
Through truss bridge over Middle River on Adair Madison Avenue
Open to traffic

Middle Road Bridge (Allegheny County, Pennsylvania)
Built 1952; rehabilitated 1985
Lost Pony/through plate girder bridge over I-76 (Pennsylvania Turnpike) on Middle Road
Replaced by a new bridge

Middle Road Covered Bridge 35-04-06 (Ashtabula County, Ohio)
Built 1868; rehabilitated 1984
Covered bridge over Conneaut Creek on Middle Road in Conneaut
Open to traffic

Middlebury River Bridge (Addison County, Vermont)
Built 1924; Replaced 2014
Lost Closed-spandrel arch bridge over Middlebury River on Vt 00125 Ml
Replaced by a new bridge

Midgley Bridge (Coconino County, Arizona)
Built 1938
Steel arch bridge over Wilson Canyon on AZ A89
Open to traffic