There are 2,636 bridges in this category · Only showing 2,052 bridges with photos
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Total length 500-1000 feet

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

Mid-Delaware Bridge (Pike County, Pennsylvania)
Built 1939
Through truss bridge over Delaware River on US 6
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

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 (Third) (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

Mossdale Highway Bridge (San Joaquin County, California)
Built 1949;
Warren through truss bascule bridge over San Joaquin River
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

Mossy Lake Bridge (Leflore County, Mississippi)
Abandoned stringer bridge over Mossy Lake on CR 273
Derelict/abandoned

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

Mountain Fork River Bridge (McCurtain County, Oklahoma)
Built 1948; Replaced 2016
Through truss bridge over Mountain Fork River on US 70
Replaced by new bridge

MPLI - Sulphur Lake Bridge (Redwood County, Minnesota)
This trestle replaced an 89 span trestle at the same location in 1941
Timber stringer bridge over Sulphur Lake on Twin Cities and Western Railroad
Open to traffic

MRL - Bonita Tunnel (Missoula County, Montana)
Built 1882, widened 1909
Tunnel on Montana Rail Link
Open to traffic

MRL - Clark Fork River Bridge No. 1 (Sanders County, Montana)
Built 1908
Through truss bridge over Clark Fork River on MRL
Open to traffic

MRL - Clark Fork River Bridge No. 2 (Sanders County, Montana)
Built 1908
Through truss bridge over Clark Fork River on Montana RailLink
Open to traffic

MRL - Clark Fork River Bridge No. 3 (Missoula County, Montana)
Warren deck truss with all verticals bridge over Clark Fork River on Railroad
Open to traffic

MRL - Clark Fork River Bridge No. 4 (Missoula County, Montana)
Bridge over Clark Fork River on Railroad
Open to traffic

MRL - Flathead River Bridge (Sanders County, Montana)
Built 1896, Reinforced 1945
Through truss bridge over Flathead River on Montana RailLink


MRL - Nimrod Tunnel (Granite County, Montana)
Built 1882, widened 1909
Tunnel on Montana Rail Link
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

Mullan Avenue Bridge (Black Hawk County, Iowa)
Built 1913
Lost Deck arch bridge over Cedar River on Mullan Avenue
Replaced by a new bridge

Mullica River Bascule Bridge (Atlantic County, New Jersey)
Built 1954
Lost Deck girder bridge over Mullica River on Garden State Parkway
No longer exists

Myrtle Creek Bridge (Douglas County, Oregon)
Built 1922, Rehabilitation & Widening 2007
Concrete arch bridge over South Umpqua River on CR 386 in Myrtle Creek
Open to traffic

N&W - 3rd Street Bridge (Forsyth County, North Carolina)
Built 1901
1901 Deck plate girder bridge over 3rd St/Fogle St/field on NWRR/NSRR
Intact but closed to all traffic

N&W - Six Mile Bridge (Campbell County, Virginia)
Abandoned deck truss bridge over James River on railroad
Abandoned

Nada Tunnel (Powell County, Kentucky)
Was constructed to haul logs via narrow gauge railroad from timber operations in the Gorge. Construction began in December 1910 and was completed in September 1911. Rock and dirt were removed by dynamite, steam drills and hand tools
Tunnel on KY 77
Open to traffic

Napoleon Bridge (Henry County, Ohio)
Built 1929 by D.H. Overman; replaced 2005
Lost seven-span concrete arch bridge over Maumee River on OH 108 at Napoleon
Replaced by a replica bridge

Narrows Bridge (Bedford County, Pennsylvania)
Built 1935 by the Pittsburg Construction Co.
Open-spandrel arch bridge over Raystown Branch of Juniata River on US 30
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 ; Replaced 2018.
Lost two-span through truss bridge over Lee Creek on AR 59 near the community of Natural Dam
Replaced by a new bridge

Navajo Bridge (Coconino County, Arizona)
Built 1927-1929; bypassed by parallel bridge in 1995
Steel arch bridge over Colorado River on Alt US 89
Open to pedestrians only

Navajo Bridge NEW (Coconino County, Arizona)
Built 1995
Steel arch bridge over Colorado River on Alternate US 89
Open to traffic

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

NECR - Connecticut River Bridge #1 (Franklin County, Massachusetts)
Built 1904, southern spans lost 3/18/36 and replaced same year
Warren deck truss bridge over Connecticut River on New England Central Railroad
Open to traffic

NECR - Connecticut River Bridge #3 (Windsor County, Vermont)
Deck plate girder bridge over Connecticut River on New England Central Railroad
Open to traffic

NECR - Millers River Bridge (Franklin County, Massachusetts)
Built 1905
Pratt deck truss bridge over Millers River on NECR (New England Central Railroad)
Open to traffic

NECR - Second Branch White River Bridge 33.57 (Windsor County, Vermont)
Deck plate girder bridge over Second Branch White River on New England Central Railroad
Open to traffic

NECR - Sugar River Bridge (Sullivan County, New Hampshire)
Built 1931
Deck plate girder bridge over Sugar River and Main Street/NH-103 on New England Central Railroad
Open to traffic

NECR - White River Bridge 19.48 (Windsor County, Vermont)
Built 1935
Deck plate girder bridge over White River and VT-14 on New England Central Railroad
Open to traffic

NECR - Winooski River Bridge #4 (Chittenden County, Vermont)
Warren through truss with all verticals bridge over Winooski River on New England Central Railroad
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 (Tillamook County, Oregon)
Built 1922, Replaced with post-tensioned box girder in 1984.
Lost swing bridge over Nehalem River
No longer exists

Nekoosa Bridge (Wood County, Wisconsin)
Built 1916, Replaced 1963
Lost Parker through truss bridge over Wisconsin River on WI-73
Replaced by a new bridge

NER - American River Bridge (Old) (Sacramento County, California)
Built 1906; Collapsed 1913
Lost Pratt through truss bridge over American River on Northern Electric Railway
Collapsed

Nesika Bridge (Lewis County, Washington)
Built 1914; destroyed & lost 1967
Lost Through truss bridge over the Cowlitz River on State Road 5
No longer exists

Netherland Inn Road Bridge (Sullivan County, Tennessee)
Replaced a steel truss bridge that collapsed into the river in 1936; bypassed by new bridge in 2009
Warren deck truss bridge over North Fork Holston River on Netherland Inn Road
Open to pedestrians only

Neuse River Pedestrian Bridge (Wake County, North Carolina)
Wire suspension bridge over Neuse River on Pedestrian
Open to pedestrians only

New Ford Bridge (Jackson County, Indiana)
Built in 1884 with additional spans built in 1891; replaced in 1987
Lost Pratt through truss bridge over East Fork White River on New Ford Road (CR550N)
Replaced by new bridge

New Leatherwood Creek Bridge (Carroll County, Arkansas)
Built 2008
Steel stringer bridge over Leatherwood Creek on US Route 62
Open to traffic