There are 2,568 bridges in this category · Only showing 1,950 bridges with photos
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Total length 500-1000 feet

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Marias River Bridge (Toole County, Montana)
Built 1936
Deck plate girder bridge over Marias River on Marias Valley Road (Old US 91)
Open to traffic

Maroon Creek Bridge (Pitkin County, Colorado)
Built 1888; converted to vehicular use ca. 1929. Bypassed in 2005.
Trestle over Maroon Creek on CO 82 at Aspen
Bypassed by a replacement bridge and left in place for pedstrian use.

Marshall Bridge (Spokane County, Washington)
Built 1949
Concrete tee beam bridge over Marshall Creek, Fish Lake Trail, and railroads on Cheney-Spokane Road
Open to traffic

Marsupial Bridge (Milwaukee County, Wisconsin)
Built 2005 below the 1926 Holton Street Viaduct
Bridge over Milwaukee River on Pedestrian & Bike Path in Milwaukee
Open to pedestrians

Massachusetts Street Bridge (1st) (Douglas County, Kansas)
Built 1864
Lost Howe through truss bridge over Kansas River on Massachusetts Street (Later US40/59)
Replaced by a new bridge

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

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

MAW - Maumee River Bridge (Defiance County, Ohio)
Built 1893
Pratt through truss bridge over Maumee River on Maumee and Western Railroad
Open to rail 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

Mayo Bridge (Richmond, Virginia)
Built 1913
Concrete arch bridge over James River on 14th Street in Richmond
Open to traffic

MBTA - Beverly Draw (Essex County, Massachusetts)
Built 1886; extensively rebuilt 1985
Deck plate girder bridge over Danvers River on Massachusetts Bay Transportation Authority RR
Open to traffic

MBTA - Canton Viaduct (Norfolk County, Massachusetts)
Built 1835
Massive stone arch bridge over East Branch Neponset River and Neponset Street on the MBTA Railroad
Open to traffic

MBTA - Gloucester Draw (Essex County, Massachusetts)
Built 1910
Deck plate girder bridge over Annisquam River on Boston & Maine
Open to traffic

MBTA - Merrimack River Bridge (Essex County, Massachusetts)
Built 1893
Warren deck truss bridge over Merrimack River on Railroad (MBTA)
Abandoned

McArdle Viaduct No. 1 (Allegheny County, Pennsylvania)
Built 1933; rehabilitated 1960
Through truss bridge over the Norfolk Southern Railroad on Mcardle Roadway in Pittsburgh
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

McCallie Tunnels (Hamilton County, Tennessee)
Built ca. 1950, specifically to handle tourist traffic on U.S. 11 & 64
Tunnels under Missionary Ridge on U.S. 11 & 64
Open to traffic

McCammon Bridge (Bannock County, Idaho)
Built 1936, Replaced Ca. 1990.
Lost Concrete deck girder bridge over Portneuf River and Union Pacific Railroad on US 30
Replaced by new bridge

McConnelsville Bridge (Morgan County, Ohio)
Built 1913 by the Oregonia Bridge Co. of Lebanon, Oh.; rehabilitated 1991
Through truss bridge over Muskingum River on County Road 203 in McConnelsville
Open to traffic

McGregor Bridge (Hillsborough County, New Hampshire)
Built in 1881 by The Corrugated Metal Co. - Lost 20 March 1936 to the "Great Flood"
Lost Lenticular Truss Bridge over Merrimack River on Bridge Street
Destroyed by flooding

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-Reynoldton Bridge (Allegheny County, Pennsylvania)
Built 1884
Lost Wire suspension bridge over Youghiogheny River at mile 0.2 on Vehicle and Trolly
Demolished

McKeown Bridge (Muscatine County, Iowa)
Built 1951
Haunched steel stringer bridge over Cedar River on Former alignment of 231st Street
Intact but closed to vehicular traffic.

McKeown Bridge (Old) (Muscatine County, Iowa)
Built 1879; Replaced 1951
Lost Pratt through truss bridge over Cedar River on Lord's Ferry Road
Replaced by a new bridge

McPhaul Bridge (Yuma County, Arizona)
Built 1929; replaced 1967
Wire suspension bridge over Gila River formerly carried US-95/Yuma-to-Quartzite road.
Closed to all traffic

Meadow Road Bridge (Coos County, New Hampshire)
Built 1897 by the Groton Bridge Co..; Bypassed in 1984; Two center spans removed from river and placed on banks in 2004
Pin connected Pratt through truss bridge over Androscoggin River in Shelburne
Closed to all traffic

MEC - Gulf Stream Trestle (Somerset County, Maine)
Built 1904, RR abandoned 1933, removed 1976
Lost Bridge over Gulf Stream on Maine Central Railroad
Removed but not replaced

Mehaffey Bridge (Johnson County, Iowa)
Built 2014-15.
Cable-stayed bridge over Coralville Resevoir (Iowa River) on Mehaffey Bridge Road
Open to traffic

Mehaffey Bridge (Old) (Johnson County, Iowa)
Built 1963; replaced 2014
Lost Steel stringer bridge over Iowa River (Coralville Resevoir) on Fm Mehaffey Bridge Road
Replaced by a new bridge

Melinda Ferry Bridge (Hawkins County, Tennessee)
Built 1985
Steel stringer bridge over Holston River (Cherokee Lake) on State Highway 344 (Melinda Ferry Road)
Open to traffic

Melrose Bridge (Jackson County, Wisconsin)
Built 1922 by Worden-Allen Co.; Replaced 1985
Lost Pennsylvania through truss bridge over Black River on STH 71, STH 108 in Town of Melrose
Replaced by new bridge

Memorial Bridge (Oxford County, Maine)
Built 1929; rehabilitated 1999
Concrete arch bridge over West Channel Androscoggin River on Portland Street in Rumford
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

Memorial Bridge (Fayette County, Pennsylvania)
Built 1952; rehabilitated 1982; replaced 2010
Lost Deck girder bridge over Youghiogheny River on US 119
Replaced by a new bridge

Memorial Drive Bridge (Middlesex County, Massachusetts)
Built 1940; rehabilitated 1982
Girder bridge over Brookline Street on US 3 (Memorial Drive)
Open to traffic

Meramec River MO 19 Bridge (Crawford County, Missouri)
Built 1925 by the Federal Bridge Co.; replaced 2000
Lost five-span closed-spandrel arch bridge over Meramec River on MO 19
Replaced by a modern bridge

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

Meramec River MO 30 / 47 Bridge (Franklin County, Missouri)
Built 1929-30 by M. E. Gillioz; replaced 2002
Lost five-span open-spandrel arch bridge over the Meramec River on Missouri State Highway 30 / 47
Replaced by bridge on new alignment

Meridian Bridge (Sutter County, California)
Built 1977
Cable-stayed swing bridge over Sacramento River on CA 20 at Meridian
Open to traffic

Merimack River Hannah Dustin Drive Bridge (Merrimack County, New Hampshire)
Two through truss spans over Merrimack River on Hannah Dustin Drive
Removed but not replaced

Merrimack-Methuen Bridge (Essex County, Massachusetts)
Built 1959; rehabilitated 1975
Deck plate girder bridge over Merrimack River on I 93
Open to traffic

Mesilla Bridge (Dona Ana County, New Mexico)
Built 1960
Steel stringer bridge over Rio Grande on NM-359
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

Metra - Cal-Sag Canal Bridge (Cook County, Illinois)
Warren through truss bridge over Cal-Sag Channel on Norfolk Southern/Metra RR's
Open

Miami Avenue Bridge (Miami-Dade County, Florida)
Built 1985
Pair of bascule bridges over Miami River on Miami Avenue in Miami
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 1928; rehabilitated 1956
Bascule bridge over Miami River on NW 12th Avenue in Miami
Open to traffic

Miami River Bridge (Miami-Dade County, Florida)
Built 2003
Bascule bridge over Miami River on SW 2nd Avenue in Miami
Open to traffic

Middle Middle Pearl River US 90 Bridge (St. Tammany Parish, Louisiana)
Built 1933
Pony truss bridge over Middle Middle Pearl River on US 90
Open to traffic

Middle River Bridge (San Joaquin County, California)
Built 1915; rehabilitated 1975
Howe Through truss bridge over Middle River on CA 4
Open to traffic

Midland Valley - Poteau River Bridge (Le Flore County, Oklahoma)
Built 1903
Abandoned bridge. Originally carried Midland Valley Railroad, later county road over Poteau River, now abandoned. Wood deck remains on 1/2 of the bridge, then a gate and no deck beyond. Very large trestle approach (unphotographed) on East side.
Abandoned

Mill Basin Bridge (Kings County, New York)
Built 1941
Bascule bridge over Mill Basin on Shore Parkway in New York
Open to traffic

Mill Bridge (Westmoreland County, Pennsylvania)
Built 1938; rehabilitated 1992
Through truss bridge over Kiskiminetas River on Mill Bridge Road in West Leechburg
Open to traffic

Mill Creek Bridge (Wasco County, Oregon)
Built 1948
Cantilevered Warren deck truss bridge over Mill Creek on US 26
Open to traffic

Mill Creek Norfolk Southern Railway Bridge (Forsyth County, North Carolina)
Warren through truss with all verticals bridge over Mill Creek on NSRR
Open to traffic

Mill Hollow Road Bridge (Boone County, Arkansas)
Built 1904
Steel stringer bridge over Mill Hollow Road (CR 34) on the Missouri Pacific Railroad
Open to traffic

Millbrook Bridge (Kendall County, Illinois)
Built 1897. Bypassed by a new concrete & Steel Stringer in 1984
Pratt through truss bridge over Fox River
Open to pedestrians, beautiful setting

Millbrook Bridge (new) (Kendall County, Illinois)
Built 1984 to bypass original Millbrook Bridge
Steel stringer bridge over Fox River on Whitfield Road
Open to traffic

Milltown Railroad Bridge (Crawford County, Indiana)
Deck plate girder bridge over Blue River on NS (Former Southern) Railway in Milltown
Open to traffic

MILW - Beavertail Tunnel (Missoula County, Montana)
Built 1908
Abandoned tunnel on Chicago, Milwaukee, St. Paul & Pacific Railroad
Derelict/abandoned

MILW - Cheyenne River Bridge (Pennington County, South Dakota)
Built 1907
Pratt through truss bridge over Cheyenne River on Former CMStP&P Railroad
Intact but closed to all traffic

MILW - La Crescent Swing Bridge (Old) (La Crosse County, Wisconsin)
Built 1876; Replaced 1902
Lost Whipple through truss bridge over Mississippi River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Replaced by a new bridge

MILW - Lind Viaduct (Adams County, Washington)
Lost Deck plate girder bridge over BNSF Railroad on Former CMStP&P Railroad
Removed but not replaced

MILW - Old Mississippi River Channel Bridge (Old) (La Crosse County, Wisconsin)
Built 1876; Replaced 1902
Lost Whipple through truss bridge over Old Channel Mississippi River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Replaced by a new bridge

MILW - Olin Bridge (Jones County, Iowa)
Built here 1913, Removed 1980
Lost Warren pony truss with all verticals bridge over Wapsipinicon River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Removed but not replaced

Minnesota River Bridge (Scott County, Minnesota)
Built 1924; replaced 2005
Lost truss bridge over Minnesota River on CSAH 5
No longer exists

Missisquoi Bay Bridge (Grand Isle County, Vermont)
Built 1937; rehabilitated 1965
Bascule bridge over Missisquoi Bay on VT 78 in Alburg
Demolished and replaced.

Missisquoi Valley Rail Trail - Sheldon Junction Bridge (Franklin County, Vermont)
Built 1900 by American Bridge Co.; One span destroyed 1984; Re-purposed for rail trail use in 1994
Pin connected Pratt through truss bridge over Missisquoi River on Missisquoi Valley Rail Trail
Open to pedestrians only

Missouri River Bridge (Fergus County, Montana)
Built 1959
Girder bridge over Missouri River on US 191
Open to traffic

Mitchell State Aid Bridge (Scotts Bluff County, Nebraska)
Built 1918
Concrete arch bridge over North Platte River on FAS 1037, 1 mi. south of Mitchell
Open to traffic

MJ Railway Bridge (Cook County, Illinois)
Deck plate girder bridge over Ogden Ave (Old Rotute 66), BNSF RR & 26th St on Manufactures Junction Railway
Open to traffic

MN-1 Red River of The North Bridge (Marshall County, Minnesota)
Built 1959
Through truss bridge over Red River of The North on MN-1 in Oslo
Open to traffic

MNA - Barren Fork Trestle (Boone County, Arkansas)
Built 1904
Steel stringer bridge over Barren Fork on Missouri and Northern Arkansas (former UP and MoPac) Railroad
Open to traffic

MNA - Bear Creek Trestle (Boone County, Arkansas)
Built 1934
Steel stringer bridge over Walnut Creek on Missouri and Northern Arkansas (former UP and MoPac) Railroad
Open to traffic

MNA - Harry S. Truman Reservoir Bridge (Henry County, Missouri)
Built in 1971 with the formation of Harry S. Truman Reservoir bypassing the original line now removed/submerged
Deck girder bridge over Harry S. Truman Reservoir on Missouri and North Arkansas Railroad (former Missouri-Kansas-Texas Railroad)
Open to traffic

MNA - Hopewell Road Overpass (Boone County, Arkansas)
Built 1904
Steel stringer bridge over Hopewell Road (CR 33) on the Missouri and Northern Arkansas Railroad
Open to traffic

MNA - Pyatt Tunnel (Marion County, Arkansas)
Built 1903-04
Tunnel on the Missouri and Northern Arkansas Railroad (formerly Missouri Pacific) southeast of Pyatt
Open to railroad traffic

MNCW - Norwalk River Bridge (Fairfield County, Connecticut)
Built 1896
Double-intersection Warren deck truss bridge over Norwalk River on Metro-North New Haven Line
Open to traffic

MO 123 S over Lit Sac Rvr (Polk County, Missouri)
Built 1967; Rehabilitated 2010
Bridge over Lit Sac River on MO 123 S
Open to traffic

MO 79 S over CUIVRE RVR (St. Charles County, Missouri)
Built 1985
Bridge over Cuivre River on MO 79 S
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

Molalla River Bridge (Clackamas County, Oregon)
Built 1936, Made One-Way in 1963
Warren deck truss bridge over Molalla River on Northbound OR-99 E
Open to traffic

Monocacy River Bridge (Frederick County, Maryland)
Built 1955; rehabilitated 1987
Deck truss bridge over Monocacy River on MD 144FA EB in Frederick
Open to traffic

Monon - Deer Creek High Bridge (Carroll County, Indiana)
Built ca. 1890's, abandoned in 1987
Abandoned deck girder bridge over Deer Creek on Delphi Historic Trail/Monon High Bridge Trail
Open to pedestrians only

Monongahela Incline (Allegheny County, Pennsylvania)
Built 1870; Renovated 1882-83, 1993 & 1994
Bridge up Mount Washington on Inclined Rail
Open to traffic

Monroe Street Bridge (Spokane County, Washington)
Built 1911; reconstructed 2005
Concrete arch bridge over Spokane River on Monroe Street in Spokane
Open to traffic

Montague City Covered Bridge 26-06-31#3x (Franklin County, Massachusetts)
Built 1870; Destroyed by Flood of 1936
Lost Covered Double decker Howe through truss bridge over Connecticut River on Railroad/Montague City Road
Destroyed by flooding

Montesano-Elma Road Bridge (Grays Harbor County, Washington)
Built 1938
Warren through truss bridge over Satsop River on Montesano-Elma Road in Elma
Open to traffic

Montgomery Tunnel (Montgomery County, Virginia)
Built by Norfolk and Western about 1890
Tunnel on Railroad
Open to traffic

Moore's Crossing Bridge (Travis County, Texas)
Built 1884 at Congress Avenue; Two Spans Moved Here In 1922; Closed to vehicular traffic in 1981
Through truss bridge over Onion Creek on Moores Bridge Rd
Open to pedestrians

Moore's Crossing Bridge (1868) (Hillsborough County, New Hampshire)
Built 1868
Lost Town lattice through truss bridge over Merrimack River on
Replaced by a new bridge

MoPac - Baring Cross Bridge (Old) (Pulaski County, Arkansas)
Built 1890; Destroyed by flooding 1927
Lost Pratt through truss bridge over Arkansas River on Missouri Pacific Railroad
Destroyed by flooding

MoPac - East Barretts Tunnel (St. Louis County, Missouri)
Built 1851-1853; Abandoned 1944
Lost Tunnel on Missouri Pacific Railroad
Tunnel demolished in 2000's

Mores Creek Bridge (Ada County, Idaho)
Built 1953
Steel arch bridge over Mores Creek (Lucky Peak Reservoir) on ID 21
Open to traffic

Morgan Street Bridge (Winnebago County, Illinois)
Built 1916; rehabilitated 1960; replaced 2013
Concrete bridge over Rock River on Morgan Street, 0.2 mi. east of Main St
Gone in 2011. Replaced by a new bridge in 2013.

Morrison Bridge (Multnomah County, Oregon)
Built 1958
Bascule bridge over Willamette River on Morrison Street in Portland
Open to traffic

Moss Bluff Drawbridge (Calcasieu Parish, Louisiana)
Built 1968
Vertical lift bridge over West Fork Calcasieu River on LA 378 in Moss Bluff
Open to traffic

Mosside Boulevard Bridge (Allegheny County, Pennsylvania)
Built 1930; rehabilitated 1972; replaced 2007
Lost cantilevered through girder bridge over Turtle Creek on Mosside Blvd.
Replaced by a new bridge

Moundsville Bridge (Marshall County, West Virginia)
Built 1986
Steel through arch bridge over Ohio River on WV 2 Spur/OH 872
Open to traffic