There are 7,006 bridges in this category · Only showing 3,800 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.”

Mill Creek Bridge CR 400 N (Dubois County, Indiana)
Built ca. 1900; replaced 1995
Lost pony truss bridge over Mill Creek on CR 400 N
Replaced by new bridge

Mill Creek Bridge in Upper Southamton Township, PA (Bucks County, Pennsylvania)
Built ca. 1860; rehabilitated 1996
Stone arch bridge with steel liners over Mill Creek on Gravel Hill Road in Upper Southampton Twp, PA
Open to traffic

Mill Creek Park Suspension Bridge (Mahoning County, Ohio)
Built 1895 by the Youngstown Bridge Co.; rebuilt in 2007 by the DOT Construction Company Canfield, OH
Suspension bridge over Mill Creek in Mill Creek Park at Youngstown
Open to traffic

Mill Creek Swinging Bridge (Miller County, Missouri)
Built ca. 1925 by Joseph Dice; rehabilitated 1978
Suspension bridge over Mill Creek on Lake Road 42-18 (Swinging Bridges Road) near Brumley
Open to one-lane traffic

Mill Crossing Bridge (Marin County, California)
Built 1947
Deck truss bridge over Lagunitas Creek on Mill Crossing
Open to traffic

Mill Race Bridge (Laclede County, Missouri)
Built 1934
Small concrete arch bridge over the Mill Race on MO 64A at Bennett Spring State Park
Open to traffic

Mill Road Bridge (Chester County, Pennsylvania)
Built 1912
Stone arch bridge over Valley Creek on Mill Road
Open to traffic

Miller Branch Bridge (Christian County, Illinois)
Built 1921
Concrete pony/through girder bridge over Miller Branch on CR 600E
Open to traffic

Miller Creek AR 233 Bridge (Independence County, Arkansas)
Built 1936
Concrete tee beam bridge over Missouri North Arkansas Railroad and Miller Creek on SH 233 in Batesville
Open to traffic

Millers Run Covered Bridge 45-03-06 (Caledonia County, Vermont)
Built 1878; rehabilitated 1995
Covered Queenspost through truss bridge over Millers Run on ALT VT 122 in Lyndon
Open to traffic

Milltown Bridge (Sebastian County, Arkansas)
Built 1940 by the Works Progress Administration
Two-span stone arch bridge over Vache Grasse Creek on CR 77 (Mount Harmony Road) west of Milltown
Open, no visible weight limit sign.

Milwaukee River Bridge (Old) (Washington County, Wisconsin)
Built 1929, Replaced 2003
Lost Parker through truss bridge over Milwaukee River on CTH MY in Newburg
Demolished - Replaced by a UCEB

Milwaukee River Broadway St. Bridge (Milwaukee County, Wisconsin)
Built 1982
Bascule bridge over Milwaukee River on Broadway Street (WI 32) in Milwaukee
Open to traffic

Mine Creek Bridge (Howard County, Arkansas)
Built 1931
Concrete tee beam bridge over Mine Creek on E. Sheppard Street in Nashville
Open to traffic

Miner Slough Bridge (Solano County, California)
Built 1933; rehabilitated 1953
Swing bridge over Miner Slough on CA 84
Open to traffic

Miner Street Bridge (Clear Creek County, Colorado)
Built 1902 by Kuyes and Work. Reconstructed 1990 (the trusses are no longer load-bearing).
Reconstructed pony truss bridge over Clear Creek on Miner Street in Idaho Springs
Open to traffic

Mineral Bayou Creek Bridge (Bryan County, Oklahoma)
Built 1926
Steel stringer bridge over Mineral Bayou Creek on Old US Highway 70 / East Main Street
Open to traffic

Mingo Ditch Route T Bridge (Stoddard County, Missouri)
Built 1955
Steel stringer bridge with wooden piers over Mingo Ditch on Route T
Open to two-lane traffic

Mingo Road Bridge (Montgomery County, Pennsylvania)
Built 1914
Stone arch bridge over Mingo Run Creek on Mingo Road in Upper Providence Township, PA
Open to traffic

Minnie White Road Bridge (Vinton County, Ohio)
Built 1945; rehabilitated 1965
Pony truss bridge over Red Oak Creek on Township Hwy 13/Minnie White Road
Derelict

Minnow Creek Bridge (Johnson County, Arkansas)
Built 1942 by the Works Progress Administration
Tee beam bridge over Minnow Creek on CR 50
Open to traffic

Minortown Road Bridge (Litchfield County, Connecticut)
Built 1890 by the Berlin Iron Bridge Co.; rehabilitated 1991
Lenticular pony truss bridge over Nonewaug River on Minortown Road in Woodbury
Open to traffic

Mispillion River Bridge (Kent County, Delaware)
Built 1929; rehabilitated 1952
Bascule bridge over Mispillion River on Rehoboth Road
Open to traffic

Mission Creek Bridge (Osage County, Oklahoma)
Built 1928
Through truss bridge over Mission Creek on D0079
Open to traffic

Mitchell Avenue Bridge (Kitsap County, Washington)
Built 1945
Concrete tee beam bridge over WA 166 on Mitchell Avenue
Open to traffic

Mitchell Bridge (Whitfield County, Georgia)
Built ca. 1920
Concrete arch bridge over Conasauga River on Old Mitchell Br. Road
Abandoned in 2001 when this road was decommissioned

Mitchell Road Bridge (Monroe County, New York)
Built 1912; rehabilitated 1997
Through truss bridge over Erie Canal on Mitchell Road
Open to traffic

Mixon Creek Bridge (Lavaca County, Texas)
Built 1936
Pony truss bridge over Mixon Creek on CR 213
Open to traffic

MLK Approach Span (St. Clair County, Illinois)
Built 1950; rehabilitated 1989
Warren through truss bridge over WB I-70, Missouri Ave. & railroad on M. L. King Bridge Approach in East St. Louis
Open to traffic

MN-19 Union Pacific Overpass (Le Sueur County, Minnesota)
Built 1935, To be replaced 2015
Concrete deck girder bridge over Union Pacific Railroad on MN-19
Replaced by a new bridge

MO 52 Bridge (Pettis County, Missouri)
Built 1929
Slab bridge over Tributary of Flat Creek on MO 52
Open to traffic

Mockingbird Lane Bridge (Dallas County, Texas)
Built 1923
Concrete arch bridge over Turtle Creek on Mockingbird Lane in Dallas
Open to traffic

Mohawk River Bridge (Albany County, New York)
Built 1959; rehabilitated 1976
Pair of steel through arch bridges over Mohawk River on I-87
Open to traffic

Mohler Bridge (Tillamook County, Oregon)
Built 1926
Polygonal Warren pony truss bridge over South Fork Nehalem River on OR 53
Open to traffic

Monaca-East Rochester Bridge (Beaver County, Pennsylvania)
Built 1959; rehabilitated 1993
Through truss bridge over the Ohio River on Pennsylvania Avenue in Monaca
Open to traffic

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

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

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

Moose Pond Outlet Bridge (Oxford County, Maine)
Built 1912; rehabilitated 1992
Concrete arch bridge over Moose Pond Outlet on ME 160 in Denmark
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

Morton Road Bridge (Putnam County, Indiana)
Built ca. 1930
Concrete arch bridge over Branch Owl Creek on Morton Road
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 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 (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 Creek Bridge (Brown County, Kansas)
Built 1935
Pony truss bridge over Mulberry Creek, 3.4 mi. east and 1.7 mi. north of Fairview
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