There are 2,963 bridges in this category · Only showing 2,687 bridges with photos
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NR-listed

Merritt Parkway over Taconic Road Bridge (Fairfield County, Connecticut)
Built 1936
Concrete arch bridge over Taconic Road on Merritt Parkway (CT 15) in Greenwich
Open to traffic

Merritt Parkway Ponus Ridge Road Bridge (Fairfield County, Connecticut)
Built 1937
Concrete rigid frame bridge over Meritt Prky on Ponus Ridge Rd
Open to traffic

Merritt Parkway Riverbank Road Bridge (Fairfield County, Connecticut)
Concrete rigid frame bridge over Merritt Prky on Riverbank Rd
Open to traffic

Merritt Parkway Stanwich Road Bridge (Fairfield County, Connecticut)
Concrete rigid frame bridge over Merritt Prky on Stanwich Rd
Open to traffic

Merritt Parkway W Rocks Road Bridge (Fairfield County, Connecticut)
Steel rigid frame bridge over Merritt Prky on W Rocks Rd
Open to traffic

Merritt Parkway White Oak Shade Road Bridge (Fairfield County, Connecticut)
Built 1938
Concrete rigid frame bridge over Merritt Prky on White Oak Shade Road
Open to traffic

Merritt Parkway Wire Mill Road Bridge (Fairfield County, Connecticut)
Built 1938
Concrete rigid frame bridge over Merritt Prky on Wire Mill Rd
Open to traffic

Miami Avenue Bridge (Gila County, Arizona)
Built 1921
Concrete arch bridge over Bloody Tanks Wash on Miami Avenue in Miami
Open to traffic

Michigan 24 Bike Trail - Indian Road Stone Arch Overpass (Oakland County, Michigan)
Stone arch bridge over Indian Lake Road on Michigan 24 Bike Trail
Open to traffic

Michigan Street Bridge (Door County, Wisconsin)
Built 1930; rehabilitated 1979; rehabilitation complete January 03, 2011
Bascule through truss bridge over Sturgeon Bay on Michigan Street in Sturgeon Bay
Open to traffic

Middle Cedar Creek Bridge (Smith County, Kansas)
Built 1900, bypassed 2000
Pony truss bridge over Middle Cedar Creek, 1.0 mi. north and 1.0 mi. west of Kensington
Intact but closed to all 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 Creek Tributary Bridge (Franklin County, Kansas)
Built ca. 1930
Stone trimmed metal arch bridge over a branch of Middle Creek, 1.5 mi. south and 0.1 mi. east of Homewood
Open to traffic

Middle Tunnel (Oconee County, South Carolina)
Built 1953
Abandoned tunnel
Derelict/abandoned - Majority of tunnel was filled in in the early 1900s

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

Middletown Bridge (Shelby County, Indiana)
Built 1903, closed in 2013 due to flood damage, and removed in January 2014.
Four-span stone arch bridge over Conns Creek on CR 450 South
No longer exists

Milford Swing Bridge (Hillsborough County, New Hampshire)
Built 1889 by Berlin Iron Bridge Co; Rehabilitated 1975
Wire suspension bridge over Souhegan River on Pedestrian walkway
Open to pedestrians only

Mill Brook Bridge (New London County, Connecticut)
Built ca. 1790; destroyed by flooding on March 30, 2010
Lost stone arch bridge over Mill Brook on Lower Blissville Road (Old Alignment) in Lisbon
Destroyed by flooding

Mill Brook Covered Bridge 45-14-10 (Windsor County, Vermont)
Built 1889; Rehabilitated 2012
Wooden arch bridge over Mill Brook on C3030 in West Windsor
Open to traffic

Mill Covered Bridge 45-08-06 (Lamoille County, Vermont)
Built 1895 by Lewis Robinson; rehabilitared 1971, 1995
Queenpost through truss bridge over North Branch of the Lamoille River on Back Road
Open to traffic

Mill Covered Bridge 45-09-09 (Orange County, Vermont)
Built 2000 (replaced the 1883 bridge that was destroyed in a flood in 1999)
Multiple Kingpost through truss bridge over First Branch White River on Spring Rd (C3002)
Open to traffic

Mill Creek Bridge (Cherokee County, Iowa)
Built 1891 by the George E. King Bridge Co.; bypassed in 2006 but appears to remain
Through truss bridge over Mill Creek on Old IA 21
Bypassed by a new bridge on a different alignment and abandoned

Mill Creek Bridge (Luzerne County, Pennsylvania)
Built 1885
Stone arch bridge over Mill Creek on PA 2004 (River Street) in Wilkes-Barre
Open to traffic

Mill Creek Covered Bridge 14-61-29 (Parke County, Indiana)
Built 1907
Covered bridge over Mill Creek on CR550W
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 Race Bridge (Fayette County, Iowa)
Built 1891; Relocated here 1926; Replaced 2004 but left standing
Warren through truss bridge over Turkey River on Pheasant Road near St. Lucas
Replaced by new bridge; old structure still standing

Mill Race Bridge (Chester County, Pennsylvania)
Stone arch bridge over Mill Race on Strasburg Road
Open to traffic

Mill Road Bridge (Previous Location) (Knox County, Ohio)
Built ca. 1876 by the Wrought Iron Bridge Co.
Relocated Bowstring pony truss bridge over Wakatomika Creek on Mill Road
Relocated to Foundation Park in Mt.Vernon.

Mill Street Stone Arch Bridge (Ulster County, New York)
Built 1897
Stone arch bridge over Birch Creek on Mill Street
Open to traffic

Miller Bridge (Original Location) (Madison County, Iowa)
Built 1884
Pony truss bridge over North River on McBride Road
Open to pedestrians

Miller Creek Bridge (Independence County, Arkansas)
Built 1914
Two-span arch bridge over Miller Creek on Miller Creek Road (CR 86) in Batesville
Open to one-lane traffic

Miller Station Road Bridge (Crawford County, Pennsylvania)
Built 1887 by the Wrought Iron Bridge Co.
Through truss bridge over French Creek on PA 1016
Replaced

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

Millersburg Ferry (Perry County, Pennsylvania)
Existing lease dates back to 1817, although a ferry operation supposedly predated this by several years.
Ferry across Susquehanna River
Open seasonally, weather and river conditions permitting

Million Dollar Bridge (Valdez-Cordova Census Area, Alaska)
Built 1910 on the CR&NW Railroad; closed 1938; reopened as a highway bridge in 1958; fourth span collapsed in earthquake on March 27, 1964, collapsed span repaired 2005
Four-span through truss bridge over Copper River on Copper River Highway
Open to one-lane traffic

Millmont Covered Bridge 38-60-01 #2 (Union County, Pennsylvania)
Built 1855
Covered bridge over Penns Creek on Covered Bridge Road
Restored and open for traffic.

Millstone River Bridge - Kingston (Mercer County, New Jersey)
Built 1798
Stone arch bridge over Millstone River on Old alignment of the King's Highway - Lincoln Highway - Rt. 27
Open to traffic

Milo Academy Covered Bridge 37-10-C (Douglas County, Oregon)
Built 1962
Covered pony/through plate girder bridge over South Umpqua River on Milo Drive
Open to traffic

Milton Covered Bridge 48-06-01 (Cabell County, West Virginia)
Originally built on Route 25 over the Mud River just South of Milton
Bridge over Manmade pond on Walkway in Milton


Mine Creek Bridge (Linn County, Kansas)
Built 1927
Rainbow arch bridge over Mine Creek on Ungeheuer Road (Old US 69), five miles north of Prescott
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

Minerva Creek Bridge (Marshall County, Iowa)
Built 1912
Arch bridge over Minerva Creek on 140th Street
Open to traffic

Minnehaha Creek Bridge (Hennepin County, Minnesota)
Built 1936
Steel arch bridge over Minnehaha Creek on CR 150 (Wooddale Avenue) in Edina
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

Mission Espada Aqueduct (Bexar County, Texas)
Built between 1731 and 1745
Stone arch bridge over Piedras Creek on Acequia Madre
Still carries water

Mitchell Street Bridge (Emmet County, Michigan)
Built 1930
Concrete tee beam bridge over Bear Creek on US 31/M-68
Open to traffic

MKT - Boonville Railroad Bridge (3rd) (Cooper County, Missouri)
Built 1932, abandoned in 1992 and donated to city by Union Pacific; reopened for rail-trail use April 2016.
Vertical-lift through truss bridge over the Missouri River on Future Katy Trail in Boonville
Partially opened to rail-trail use April 2nd, 2016

MN115/BNSF Mississippi River Bridge (Morrison County, Minnesota)
Built 1930
Steel stringer bridge over Mississippi River on Th 115, BNSF RR
Open to traffic

MNA - Cotter Tunnel (Marion County, Arkansas)
Built 1903-04
Tunnel on the MNA Railroad (formerly Missouri Pacific) just northwest of Cotter
Open to railroad traffic

MNA - Crest Tunnel (Boone County, Arkansas)
Built 1903-05
Tunnel on the Missouri and Northern Arkansas (formerly Missouri Pacific) Railway northwest of Omaha
Open to railroad traffic

MNA - Cricket Tunnel (Boone County, Arkansas)
Built 1903-05
Tunnel on the Missouri and Northern Arkansas (formerly Missouri Pacific) just south of Omaha
Open to railroad 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 - Devon Bridge (New Haven County, Connecticut)
Built 1905, rehabilitated 1990
Warren through truss bascule bridge over Housatonic River on Metro-North Commuter Railroad
Open to traffic

MNCW - Mianus River Bridge (Fairfield County, Connecticut)
Built 1904, rehabilitated 1989
Deck girder bridge over Mianus River on Metro-North New Haven Line/Amtrak NEC
Open to traffic

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

MNCW - Saugatuck River Bridge (Fairfield County, Connecticut)
Built 1905, rehabilitated 1990
Bridge over Saugatuck River on Metro-North Commuter Railroad in Westport
Open to traffic

Moffitt/Friendship Gardens Bridge (Hendricks County, Indiana)
Built 1886 by the Morse Bridge Company, relocated and restored for trail usage.
Warren through truss bridge over White Lick Creek on a trail in Plainfield
Open to pedestrians only on a trail.

Monadnock Mills Bridge (Sullivan County, New Hampshire)
Built ca. 1870's
Abandoned bowstring through truss bridge over Sugar River on an old access into a building
Abandoned (but still carries a pipe line)

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

Monona Township Stone Arch (Clayton County, Iowa)
Built 1899 by Frank Boyle, repace by a new bridge in 1998
Stone culvert bridge over Unnamed Stream on 125th Street
Open to traffic

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

Monroe Road Bridge (Clinton County, Michigan)
Built 1894; replaced in 2001 and dismantled for reuse
Dismantled through truss bridge over Looking Glass River on Monroe Road
Replaced by a new bridge and dismantled for reuse

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

Montgomery Bell Tunnel (Cheatham County, Tennessee)
Built 1819
Tunnel under hillside on Tributary of the Harpeth River


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

Montopolis Bridge (Travis County, Texas)
Built 1938; closed to vehicles in 2018
Camelback through truss bridge over Colorado River on US 183 Southbound Frontage Road in Austin
Open to pedestrians only

Montserrat Recreation Demonstration Area Bridge (Johnson County, Missouri)
Built 1937 by the Works Progress Administration
Two-span culvert on SE 10 Road (Knob Noster State Park entrance road)
Open to traffic

Moore's Ford Bridge (Jones County, Iowa)
Built 1884 by Morse Bridge Company, Removed betwixt 2002 aerial imagery and the 2004 aerial imagery
Lost Pratt through truss bridge over White Water Creek on 25th Avenue
Demolished - Removed but not replaced

Moores Creek Bridge (St. Lucie County, Florida)
Built 1925; rehabilitated 1997
Concrete arch bridge over Moores Creek on North 2nd Street in Fort Pierce
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

Morel Bridge (Deer Lodge County, Montana)
Built 1914 by prision inmates in Montana as part of the "Good Roads Movement". Bridge abandoned in 1916 due to construction of mining settling ponds.
Marsh arch bridge over Silver Bow Creek on an abandoned county road
Open to pedestrians

Morgan Bridge (Shelby County, Tennessee)
Built 1905
Arch bridge over the BNSF Railroad on Dudley Street in Memphis
Open to traffic

Morgan Bridge (Madison County, Iowa)
Built 1891 by local contractor using King Iron Bridge Co. superstructure; originally carried local road over Branch of Clanton Creek
Pratt pony truss bridge
Open to pedestrians only

Morgan County Bridge #96 (Morgan County, Indiana)
Built 1895; rehabilitated 2002
Pony/through plate girder bridge over Branch of Lake Ditch on Ditch Road
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

Mormon Flat Bridge (Maricopa County, Arizona)
Built 1925; rehabilitated 1969
Through truss bridge over First Water Creek on AZ 88 (Apache Trail)
Open to traffic

Morris Road Bridge (Montgomery County, Pennsylvania)
Built 1841; rehabilitated 1916
Stone arch bridge over Wissahickon Creek on Morris Road near Fort Washington, PA
Open to traffic

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

Morrisville-Trenton Railroad Bridge (Mercer County, New Jersey)
Built 1903
Stone arch bridge over Delaware River on Amtrak Northeast Corridor
Open to traffic

Morseville Bridge (Saginaw County, Michigan)
Built in 1885 by the Smith Bridge Company; bypassed in 2006
Pratt through truss bridge over Flint River on Burt Road (Old alignment)
Bypassed by a new bridge on a different alignment and abandoned

Morton County WPA Bridge (Morton County, Kansas)
Built 1936 by the Works Progress Administration
Five-span stone arch bridge over a branch of Cimarron River, 4.0 mi. north and 6.0 mi. west of Richfield
Open to traffic

Morton-State Line Ridge Tunnel (Sevier County, Tennessee)
Built as one of 3 masonry-faced tunnels, along with bridges, on the New Found Gap Road
Tunnel under spur of State Line Ridge on U.S. 441 New Found Gap Road (formerly Indian Gap Highway), Great Smoky Mountains National Park, Tennessee
Open to traffic

Mosby Creek Covered Bridge 37-20-27 (Lane County, Oregon)
Built in 1920. Restored in 1990.
Covered Howe through truss bridge on Mosby Creek Road
Open to traffic

Moscow Covered Bridge 14-70-07 (Rush County, Indiana)
Built 1886 by E. L. Kennedy; rebuilt 2010 by Dan Collom & Sons
Two-span covered bridge over Flatrock River on CR 900S at Moscow
Damaged by a tornado on June 3, 2008. Bridge rebuilt using old and new materials.

Mosquito Lake Road Bridge (Whatcom County, Washington)
Built 1915; Moved here and modified 1951; Rehabilitated in 2010
Through truss bridge over Middle Fork Nooksack River on Mosquito Lake Road
Open to traffic

Motley Slough Bridge (Lowndes County, Mississippi)
Built or relocated here 1925
Pony truss bridge over Slough Creek on Schaffer Chapel Road
Open to traffic

Motor Mill Bridge (1899) (Clayton County, Iowa)
Built 1899, One span destroyed by flooding in 1991, the other in 2008. Replica spans installed in late 2012
Pratt through truss bridge over Turkey River on Galaxy Road
Destroyed by flooding in 2008; replica spans now in place and 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 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 Pleasant Covered Bridge 38-50-12 (Perry County, Pennsylvania)
Built 1918
Covered bridge over Shermans Creek on Mount Pleasant Road (TR 304)
Open to traffic

Mountain Fork River CR 38 Bridge (Polk County, Arkansas)
Built 1905
Two-span pony truss bridge over Mountain Fork River on CR 38 near Potter
Open to one lane traffic

Mower Road Bridge (Saginaw County, Michigan)
Built 1920
Concrete pony/through girder bridge over Cole Drain on Mower Road
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

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

MP - West Barretts Tunnel (St. Louis County, Missouri)
Built between 1851-53 by the Pacific (later MO Pacific) Railroad for a single broad gauge track; Gauge standardized in 1869. Tunnel remained in service until congestion caused the railroad to bypass the tracks via a cut 100' to the south in 1944.
Tunnel under a hill in Kirkwood, MO on former Missouri Pacific Railroad
Abandoned

MRL - Orange Street Underpass (Missoula County, Montana)
Concrete rigid frame bridge over Orange Street on Montana Rail Link
Open to traffic

MS 18 Bayou Pierre Bridge (Copiah County, Mississippi)
Built ca. 1940
Through truss bridge over Bayou Pierre on MS 18
Open to traffic

Mt. Orne Covered Bridge 45-05-03 / 29-04-08 (Coos County, New Hampshire)
Built 1911; rehabilitated 1988
Covered bridge over Connecticut River on Mt. Orne Road in Lancaster
Open to traffic

Muddy Creek Bridge (Butler County, Kansas)
Built 1910
Two-span concrete arch bridge over Muddy Creek, 3.2 mi. east and 1.0 mi. north of Douglass
Open to traffic

Mueller Bridge (Wilson County, Texas)
Built 1915 by the Alamo Construction Company; Closed to traffic in 1988
Pony truss bridge over Cibolo Creek on CR 337
Closed to all traffic