There are 7,710 bridges in this category · Only showing 3,386 bridges with photos
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Built during 1920s

Mount Sterling Bridge (Gasconade County, Missouri)
Built 1925; Replaced 1979
Lost through truss bridge over Gasconade River at Mount Sterling on US 50
Replaced 1979

Mountain Creek Bridge (Cumberland County, Pennsylvania)
Built 1920
Steel stringer bridge over Mountain Creek on Ladnor Road, T-575
Open to traffic

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

Mt. Bonnell Road Bridge (Travis County, Texas)
Built 1923 by the Austin Bridge Co.
Pony truss bridge over Water Plant Road on Mt. Bonnell Road in Austin
Open to Pedestrians

MTA - Gowanus Canal Bridge (Kings County, New York)
Built 1929
Truss bridge over Gowanus Canal on NYCTA
Open to traffic

Mud Creek Bridge (Sherman County, Nebraska)
Built 1925
Pony truss bridge over Mud Creek on a county road, .5 mi. south of Hazard
Open to traffic

Mud Creek Bridge (Cobb County, Georgia)
Built 1928
Warren pony truss bridge over Mud Creek on Old Dallas Road
Preserved immediately north of current roadway and culvert

Mud Creek Bridge (Henry County, Illinois)
Built 1920
Concrete pony/through girder bridge over Mud Creek on E 2720 St
Open to traffic

Mud Creek CR 1159 Bridge (Monroe County, Missouri)
Built 1930; later moved here
Pony truss bridge over Mud Creek on CR 1159
Open to traffic

Muddy Creek CR 209 Bridge (Hamilton County, Ohio)
Built 1923; rehabilitated 1970
Through truss bridge over Muddy Creek on CR 209
Demolished.

Muddy Creek Old US 65 Bridge (Pettis County, Missouri)
Built 1924 by contractor M.E. Gillioz
Through truss bridge over Muddy Creek on Claycomb Road (Old US 65) north of Sedalia
Open to traffic

Muddy Fork Railroad Bridge (Clark County, Indiana)
Built 1929
Deck plate girder bridge over Muddy Fork on Louisville and Indiana Railroad
Open to traffic

Mulberry River US 64 Bridge (Crawford County, Arkansas)
Built 1929; rehabilitated 1961
Three-span open-spandrel arch bridge over Big Mulberry River on US 64 in Mulberry
Open to traffic

Mullica River Bridge (Atlantic County, New Jersey)
Built 1926; replaced 2003
Lost bascule bridge over Mullica River on Egg Harbor-Green Bank Road
No longer exists

Mullica River Bridge (Burlington County, New Jersey)
Built 1926
Deck girder bridge on Highway Route 652
Open to traffic

Muncie Railroad Bridge (Vermilion County, Illinois)
Built 1922 for the Peoria and Eastern Railroad, abandoned ca. 1990's
Concrete arch bridge over Stony Creek on former Conrail Railroad east of Muncie
Abandoned, but intact

Murphy Bridge (Huntington County, Indiana)
Built in 1928 by the Pan American Bridge Company; Restored in 2006.
Parker through truss bridge over Salamonie River on CR 800 South
Open to traffic

Muscoda Bascule Bridge (Grant County, Wisconsin)
Built 1929
Lost Pony/through plate girder bridge over Wisconsin River on State Highway 80
Replaced by new bridge

Myers Creek Bridge (Curry County, Oregon)
Built 1924
Concrete tee beam bridge over Myers Creek on Meyers Creek Road (Old US 101)
Open to traffic

Myers Road Bridge (Warrick County, Indiana)
Built ca. 1920; rehabilitated 1987
Pratt bedstead pony truss bridge over Caney Creek on Myers Road
Open to traffic

Myrtle Creek Bridge (Curry County, Oregon)
Built 1925
Wooden bridge over Myrtle Creek on CR 500
Open to traffic

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

Mystic River Bascule Bridge (New London County, Connecticut)
Built 1922
Bascule bridge over Mystic River on US 1 at Mystic
Open to traffic

N Fork Zumbro River Bridge (Goodhue County, Minnesota)
Built 1927
Concrete tee beam bridge over N Fork Zumbro River on Th 56
Open to traffic

Nacimiento Lake Drive Bridge (Monterey County, California)
Built 1921
Pratt Through truss bridge over San Antonio River on Nacimiento Lake Drive
Open to traffic

Napa Creek Bridge (Napa County, California)
Built 1920; replaced 2006
Lost stone arch bridge over Napa Creek on First Street in Napa
Replaced by new bridge 2006

Napa Creek Bridge (Napa County, California)
Built 1920
Stone arch bridge over Napa Creek on Pearl Street in Napa
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

Napoleon Road Bridge (Allen County, Ohio)
Built 1928
Concrete curved chord through girder bridge over Little Hog Creek on Napoleon Road
Open to traffic

Narada Falls Bridge (Lewis County, Washington)
Built 1928
Arch bridge over Paradise River on Paradise Connection
Open to traffic

Nash Railroad Bridge (Cape Girardeau County, Missouri)
Built ca. 1928, replacing an earlier through truss bridge that had collapsed
Two-span through truss bridge over the Diversion Channel on the BNSF Railway southwest of Cape Girardeau
Open to traffic on the active BNSF St. Louis-Memphis railroad line

Nashannock Creek Bridge (Mercer County, Pennsylvania)
Built 1922
Through truss bridge over Nashannock Creek on TR 401 (Old Mercer Road)
Open to traffic

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

Navarro Street Bridge (Middle) (Bexar County, Texas)
Built 1922 by the Virginia Bridge & Iron Co.
Pony truss bridge over San Antonio River on Navarro Street in San Antonio
Open to traffic

Navarro Street Bridge (N) (Bexar County, Texas)
Built 1921
Concrete tee beam bridge over San Antonio River on Navarro Street
Open to traffic

Navarro Street Bridge (S) (Bexar County, Texas)
Built 1922
Concrete arch bridge over San Antonio River on Navarro Street in San Antonio
Open to traffic

Navasota River Bridge (Limestone County, Texas)
Built 1920
Pony truss bridge over Navasota River on CR 402
Open to traffic

Nebraska Avenue Bridge (Hillsborough County, Florida)
Built 1923; rehabilitated 1965
Concrete tee beam bridge over Hillsborough River on Us 41 (Sr 45) in Tampa
Open to traffic

NECR Burlington Branch - Winooski River Bridge #2 (Chittenden County, Vermont)
Polygonal Warren through truss with all verticals bridge over Winooski River on NECR Burlington Branch
Open to traffic

Nela Ave. Bridge (Orange County, Florida)
Built 1926; rehabilitated 1982
Concrete tee beam bridge over Lake Conway Connector on Nela Avenue
Open to traffic

Nelson Mountain Covered Bridge 37-20-06 (Lane County, Oregon)
Built 1928; rehabilitated 1984
Covered Howe through truss bridge over Lake Creek on Nelson Mountain Road
Open to traffic

Nemo Bridge (Morgan County, Tennessee)
Built 1929 after this and nearby bridges at Oakdale and Deermont were destroyed by floods in 1906
Camelback through truss bridge over Emory River on Catoosa Road
Open to pedestrians

Neosho River Bridge (Coffey County, Kansas)
Built 1926
Two-span Marsh arch bridge over Neosho River on 19th Lane, 0.2 mi. east of Hartford
Open to traffic

Neosho River Bridge (Neosho County, Kansas)
Built 1928
Through truss bridge over Neosho River, 1.2 mi. south and 0.4 mi. west of Erie
Open to traffic

Neversink River Bridge (Orange County, New York)
Built 1928; rehabilitated 1975
Through truss bridge over Neversink River on US 209
Open to traffic

Neversink River Bridge (Orange County, New York)
Built 1929
Through truss bridge over Neversink River on US 6 in Port Jervis
Open to traffic

Nevins Covered Bridge 14-61-05 (Parke County, Indiana)
Built 1920
Covered bridge over Little Raccoon Creek on CR S130E
Open to traffic

New Blaine Bridge (Logan County, Arkansas)
Built 1929
Concrete tee beam bridge over Little Shoal Creek on AR 197
Open to traffic

New Lick Log Creek Bridge (Bollinger County, Missouri)
Originally built 1922 over Opossum Creek on MO 51 near Marble Hill, relocated here in 1995
Relocated pony truss bridge over Lick Log Creek on CR 736 near Gipsy
Open to traffic with no posted restrictions

New River Bridge (Grayson County, Virginia)
Built 1927; demolished 2011
Five-span Polygonal Warren through truss bridge over New River on VA 94
Replaced by a new bridge

New Troy Bridge (Berrien County, Michigan)
Built 1923
Concrete curved chord through girder bridge over Galien River on Avery Road/Mill Road
Open to pedestrians only

Newaukum Creek Bridge (King County, Washington)
Built 1927
Concrete arch bridge over Newaukum Creek on SE 400th Street
Open to traffic

Newcastle Bridge (McClain County, Oklahoma)
Built 1923
Lost through truss bridge over S. Canadian River on old US 62/277
Two spans collapsed in May 20, 2013 tornado. Seven surviving spans were then demolished, and the remaining single span donated to Newcastle.

Newman Road Bridge (Gibson County, Indiana)
Built 1927
Lost pony truss bridge over Newman Lateral on Newman Road
Replaced by a new bridge

Newman Street Hogan Creek Bridge (Duval County, Florida)
Built 1929
Slab bridge over Hogan Creek on Newman Street
Open to traffic

Niangua River Old US 66 Bridge (Webster County, Missouri)
Built 1924 by contractor M.E. Gillioz
Pony truss bridge on Route CC (Old US 66) over East Fork Niangua River
Open to traffic

Nicasio Valley Road Bridge (Marin County, California)
Built 1928
Concrete tee beam bridge over Arroyo Nicasio on Nicasio Valley Road
Open to traffic

Nicholson Road Bridge (Denton County, Texas)
Built 1925
Pony truss bridge over Clear Creek on Nicholson Road in Denton
Replaced by a concrete bridge. The original structure was relocated to the City of Trenton.

Nine Bridge Road Bridge (Hall County, Nebraska)
Built 1924; rehabilitated 1971
Six-span pony truss bridge over South Channel Platte River on Nine Bridge Road, 1.8 mi. north of Doniphan
Open to traffic

Niobrara River Railroad Bridge (Knox County, Nebraska)
Built 1929 by the Chicago and North Western Railway, replacing a previous structure. Abandoned in the 1970s. Reopened to pedestrians.
Warren through truss bridge over Niobrara River on Rail-Trail
Open to pedestrians

NJT - Lower Hack Lift Bridge (Hudson County, New Jersey)
Built 1928
Three-track through truss bridge over Hackensack River on NJT RR (formerly DL&W RR)
Open to traffic

NJT - Millington High Bridge (Morris County, New Jersey)
Built 1928
Deck plate girder bridge over Passiac River on Railroad (NJT)
Open to traffic

Nobles' Trail Twin Bridges (Shasta County, California)
Built 1924, Bypassed 1963
Concrete curved chord through girder bridge over Dry Creek on Nobles Trail Road
Open to pedestrians

Nodaway River CR 462 Bridge (Andrew County, Missouri)
Built 1923
Pony truss bridge over Old Channel Nodaway River on CR 462
Open to traffic

Noel Bridge (McDonald County, Missouri)
Built ca. 1925; replaced 1982
Lost three-span concrete arch bridge over Elk River on MO 59 (formerly US 71) at Noel
Replaced by new bridge

Noontootla Creek Bridge (Fannin County, Georgia)
Replaced by modern bridge in 1989.
Pony truss bridge over Noontootla Creek on Junie Dr (Old Doublehead Gap Rd)
Private access only

Norfolk Creek Bridge (Allamakee County, Iowa)
Built 1922
Pony truss bridge over Norfolk Creek on Yellow River Drive
Open to traffic

Norfolk Southern Railroad Bridge (Thomas County, Georgia)
Built 1923
Concrete tee beam bridge over Norfolk Southern Rr on US 84
Open to traffic

Norridgewock Bridge (Somerset County, Maine)
Built 1928, replaced in 2011
Rainbow arch bridge over Kennebec River on US 201A/ME 8 in Norridgewock
Replaced by new bridge

North Arroyo Boulevard Channel Bridge (Los Angeles County, California)
Built 1927
Concrete arch bridge over Arroyo Seco Ch Br on Arroyo Blvd. in Pasadena
Open to traffic

North Avenue Bridge (Kane County, Illinois)
Built 1926; rehabilitated 1974. Major reconstruction in 2002
Concrete bridge over Fox River on North Avenue in Aurora
Open to traffic

North Avenue Viaduct (Milwaukee County, Wisconsin)
Built 1921; Replaced 1991
Lost Open-spandrel arch bridge over Milwaukee River on E North Avenue in Milwaukee
Replaced by new bridge

North Big River Bridge (St. Francois County, Missouri)
Built 1924; made obsolete by new bridge in 1956
Through truss bridge over Big River on Old US 67 (Berry Road) north of Bonne Terre
Closed to traffic

North Blackbird Creek Bridge (Putnam County, Missouri)
Built ca. 1920
Bedstead pony truss bridge over North Blackbird Creek on CR 156
Open to traffic

North Boat Ditch Bridge (Clark County, Arkansas)
Built ca. 1928
Through truss bridge over North Boat Ditch on CR 8
Open to one-lane traffic

North Boggy Creek Bridge (Atoka County, Oklahoma)
Built 1920
Pony truss bridge over North Boggy Creek on E1660 Rd.
Open to traffic

North Bosque River Bridge (Erath County, Texas)
Built 1921
Pratt through truss bridge over North Bosque River on CR 270
Open to traffic

North Branch Root River MN 250 Bridge (Fillmore County, Minnesota)
Built 1924
Through truss bridge over North Branch Root River on MN 250
Open to traffic

North Bridge (King County, Washington)
Built 1924; Struck June 11, 1978; Replaced 1991
Lost Parker through truss bridge over Duwamish River on Spokane Street West Waterway
Replaced by a new bridge

North Canadian River Bridge (Canadian County, Oklahoma)
Built 1925
Through truss bridge over North Canadian River on N2830 in El Reno
Open to traffic

North Canadian River Bridge (Okfuskee County, Oklahoma)
Built 1927; rehabilitated 1945
Through truss bridge over North Canadian River on IRR 5434C
Open to traffic

North Canadian River Bridge (Oklahoma County, Oklahoma)
Built 1925
Through truss bridge over North Canadian River on Britton Rd. in Jones
Removed and replaced

North Cut Ditch Bridge (Scott County, Missouri)
Built 1923; rehabilitated 1941
Through truss bridge on MO 77 over North Cut Ditch northwest of Diehlstadt
Open to one-lane traffic

North English River Bridge (Iowa County, Iowa)
Built 1929; rehabilitated 1965
Pony truss bridge over North English River on Gg Avenue
Open to traffic; Level B (Enter at your own risk) Road

North Fork Alsea River Bridge (Benton County, Oregon)
Built 1927
Polygonal Warren pony truss bridge over North Fork Alsea River on OR 34
Open to traffic

North Fork Butter Creek Bridge (Umatilla County, Oregon)
Built 1926, Replaced 2003
Lost Stringer bridge over North Fork Butter Creek on OR 74
Replaced by pre-cast concrete girder bridge in 2003

North Fork Fabius MO 15 Bridge (Knox County, Missouri)
Built 1923
Lost Pratt through truss bridge over North Fork Fabius River on MO 15
Replaced by a new bridge

North Fork Hughes River Bridge (Ritchie County, West Virginia)
Built 1925
Through truss bridge over North Fork Hughes River on WV 31 in Cairo
Open to traffic

North Fork IN 46 Bridge (Brown County, Indiana)
Built 1928; rehabilitated 1974
Concrete arch bridge over North Fork Salt Creek on IN 46 in Nashville
Open to traffic

North Fork Kentucky River Bridge (Perry County, Kentucky)
Built 1926 by the Atlantic Bridge Co.
Pony truss bridge over North Fork Kentucky River on Kenmont Road
Open to traffic

North Fork Kentucky River KY 451 Bridge (Perry County, Kentucky)
Built 1927
Through truss bridge over North Fork Kentucky River on KY 451 in Hazard
Open to traffic

North Fork Long Creek Bridge (Washington County, Iowa)
Built 1929
Pony truss bridge over North Fork Long Creek on 200th Street
Open to traffic

North Fork Maquoketa River Bridge (Dubuque County, Iowa)
Built ca. 1920
Through truss bridge over North Fork Maquoketa River on Christoph Road
Open to traffic

North Fork Red River Bridge (Jackson County, Oklahoma)
Built 1929; closed to traffic Oct. 2009
23-span pony truss bridge over North Fork Red River on E1645
Open to pedestrians

North Fork Spring River Bridge (Barton County, Missouri)
Built 1923; rehabilitated 1947
Steel stringer bridge over North Fork Spring River on Southbound US 71
Open to traffic

North Mayo River Bridge (Henry County, Virginia)
Built 1922 by the Champion Bridge Co.
Pratt pony truss bridge over North Mayo River on Log Manor Rd (Route 630)
Open to traffic

North Platte River Bridge (Carbon County, Wyoming)
Built 1929
Camelback through truss bridge over North Platte River on CT395-3 in Saratoga
Open to traffic

North Presa Street Bridge (Bexar County, Texas)
Built 1925 by the McKenzie Construction Co. and the Houston Structural Steel Co.; reduced to two lane traffic in the 1980's
Pony truss bridge over San Antonio River on N. Presa Street in San Antonio
Open to traffic

North River Bridge (Madison County, Iowa)
Built ca. 1920; rehabilitated 1967
Through truss bridge over North River on North River Trail
Open to traffic

North Road Bridge (Oxford County, Maine)
Built 1921; rehabilitated 1991
Through truss bridge over Androscoggin River on North Road in Gilead
Open to traffic