There are 14,193 bridges in this category · Only showing 6,153 bridges with photos
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Structurally deficient

From: 2015 "Status of the Nation’s Highways, Bridges, and Transit: Conditions and Performance" report to Congress

Bridges are considered “structurally deficient” if (1) significant load-carrying elements are found to be in poor or worse-than-poor condition due to deterioration or damage, or (2) the adequacy of the waterway opening the bridge provides is determined to be insufficient to the point of causing intolerable traffic interruptions due to high water. That a bridge is structurally deficient does not mean it is unsafe.

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 (Cherokee County, Iowa)
Built 1917
Through truss bridge over Mill Creek on L Avenue
Open to traffic

Mill Creek Bridge (Hendricks County, Indiana)
Built ca. 1930; rehabilitated 1979
Concrete arch bridge over Mill Creek on CR 475 West in Amo
Open to traffic

Mill Creek Bridge (Wabaunsee County, Kansas)
Built ca. 1935
Two-span pony truss bridge over Mill Creek on Kuenzli Creek Road, 1.5 mi. east and 0.5 mi. south of McFarland
Replaced by a new bridge

Mill Creek Bridge (Cape May County, New Jersey)
Built 1901
Pony truss bridge over Mill Creek on CR 632
Closed to all traffic

Mill Creek Bridge (Union County, Ohio)
Built 1913; rehabilitated 1994
Pony truss bridge over Mill Creek on TR 99
Replaced by a modern, non-historic covered bridge

Mill Creek Bridge (Jackson County, West Virginia)
Built 1926
Through truss bridge over Mill Creek on WV 87
Replaced by a new bridge

Mill Creek Bridge (Washington County, Missouri)
Built 1935
Concrete tee beam bridge over Mill Creek on Route M
Open to traffic

Mill Creek Bridge (Putnam County, Indiana)
Built 1925; rehabilitated 1985
Pony truss bridge over Mill Creek on CR 450 South
Open to traffic

Mill Creek Bridge (Decatur County, Indiana)
Built ca. 1930; replaced 1993
Lost pony truss bridge over Mill Creek on US 421 at 725N-675W
Replaced by new bridge

Mill Creek Bridge (Lawrence County, Indiana)
Built 1915; replaced 1996
Lost pony truss bridge over Mill Creek on 830 South
Replaced by new bridge

Mill Creek Bridge (Lincoln County, Missouri)
Built 1887 by the St. Louis Bridge & Iron Co.; replaced 1995
Lost wrought iron pony truss bridge over Mill Creek on S. Mill Creek Road
Replaced by new bridge

Mill Creek Bridge (Tuscaloosa County, Alabama)
Built 1900; Reconstructed 1987
3 wood bridges over Mill Creek on Deason Road
Open to traffic

Mill Creek Bridge (Kent County, Delaware)
Built 1936; Rehabilitated 1970; Replaced 1996
Lost Slab bridge over Mill Creek on Sr 6 (Woodland Beach Road)
Replaced by a new bridge

Mill Creek Covered Bridge 14-61-29 (Parke County, Indiana)
Built 1907
Covered bridge over Mill Creek on CR550W
Open to traffic

Mill Creek CR 321 Bridge (Holt County, Missouri)
Built ca. 1920
Pony truss bridge over Mill Creek on CR 321
Open to traffic

Mill Creek CR 399 Bridge (Andrew County, Missouri)
Built 1925
Pony truss bridge over Mill Creek on CR 399
Open to traffic

Mill Creek MO 47 (Washington County, Missouri)
Built 1964
Steel stringer bridge over Mill Creek on Mo 47 S
Open to traffic

Mill Creek Old US 36 Bridge (Caldwell County, Missouri)
Built 1922
Pony truss bridge over Mill Creek on Old US 36
Open to traffic

Mill Creek SR 234 Bridge (Fountain County, Indiana)
Built 1931; rehabilitated 1974; replaced 1996
Lost pony truss bridge over Mill Creek on IN 234
Replaced by new bridge

Mill Creek-Fox Road Bridge (Washington County, Kansas)
Built ca. 1910
Pony truss bridge over Mill Creek on G-10.5 81, 0.5 mi. north and 2.5 mi. east of Haddam
Open to traffic

Mill Hill Road Bridge (Luzerne County, Pennsylvania)
Built 1907-11 by Penn Bridge Co.
Pony truss bridge over Nescopeck Creek on Mill Hill Road (TR 336)
No longer exists; rep[laced by new UECB?

Mill Pond Bridge (Elk County, Pennsylvania)
Built 1928
Concrete tee beam bridge over Mill Pond on Sr 1005
Open to traffic

Mill Road Bridge (Darke County, Ohio)
Built 1881 by the Massillon Bridge Co.
Through truss bridge over Greenville Creek on TR 385 in Gettysburg
Open to pedestrians only

Mill Road Bridge (Carroll County, Illinois)
Built 1920, replaced 2015
Timber stringer bridge over BNSF on Mill Road
Intact but closed to all 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 Road Bridge Buckingham Township, PA (Bucks County, Pennsylvania)
Built 1912
Concrete deck girder bridge over Watson Creek on Mill Road in Buckingham Township (near Doylestown,) PA -Bucks County Bridge #50
Open to traffic

Mill Road Bridge in Evansburg State Park (Montgomery County, Pennsylvania)
Built ca. 1895; rehabilitated ca. 1985
Pony truss bridge over Skippack Creek on PA 4005 (Mill Road) in Evansburg State Park
Open to traffic

Mill Shoals Bridge (White County, Illinois)
Through truss bridge over Skillet Fork west of Mill Shoals on CR 2500 (FAS 878), 0.5 mi. west of Mill Shoals
Closed to all traffic

Mill Stream Bridge (Knox County, Maine)
Built 1929
Slab bridge over Mill Stream on Payson Road
Open to traffic

Mill Street Bridge (Tama County, Iowa)
Built 1911; Replaced 2013
Through truss bridge over Wolf Creek on Mill Street in Traer
Replaced by a new bridge

Mill Street Bridge (Miami County, Kansas)
Built ca. 1920, Demolished Ca. 2017.
Through truss bridge over Marias Des Cygnes River on 347th Street, 1.3 mi. east of Osawatomie
Lost

Mill Street Bridge (Washington County, Pennsylvania)
Built 1908 by American Bridge Co.
Pony truss bridge over Norfolk Southern Railway on Mill Street (Old PA 88) in Fredericktown-Millsboro
Derelict/abandoned

Mill Street Bridge (Androscoggin County, Maine)
Built 1926
Concrete tee beam bridge over Sabattus Stream on Mill Street
Open to traffic

Miller Bridge (York County, Pennsylvania)
Built 1899
Stone arch bridge over Yellow Breeches Creek on T955 Slatehill Road
Open to all traffic

Miller Bridge (Pike County, Indiana)
Built ca. 1920
Through truss bridge over Patoka River on CR 500 West (Miller Bridge Road)
Open to traffic

Miller Creek Bridge (Alexander County, Illinois)
Built 1933
Pony truss bridge over Miller Creek on Old Illinois Route 3 northeast of Thebes, 1 mi. north of Thebes
Open to two-lane traffic

Miller Creek Bridge (St. Louis County, Minnesota)
Built 1927
Concrete arch bridge over Miller Creek on MN 361 (10th Street) in Duluth
Open to traffic

Miller Creek Stone Bridge (Wayne County, Missouri)
Built ca. 1930; replaced 2015
Lost low-water bridge with stone masonry foundations on CR 417 over Miller Creek beyond the end of Route JJ
Replaced by a new bridge

Miller Ditch Bridge (Knox County, Indiana)
Built 1905; replaced 1991
Lost pony truss bridge over Miller Ditch on CR 300N
Replaced by new bridge

Miller Ford Bridge (Gentry County, Missouri)
Built 1907 by the St. Joseph Bridge & Iron Co.; replaced 1997
Lost through truss bridge over Grand River on Old Havana Trail (CR 469)
Replaced by a new bridge

Miller Road Bridge (Clinton County, New York)
Steel Stringer built 1940; Concrete slab built 1950; Closed c.1990
Steel stringer bridge over North Branch Great Chazy River on Abandonded Road
Road has been abandoned. Looks like its used for pedestrian crossings however

Millers Bridge (Butler County, Missouri)
Built 1924; replaced 2012
Lost pony truss bridge over Cane Creek on Route PP (Old US 60) west of Poplar Bluff
Replaced by a new bridge

Millertown Bridge (Jackson County, Iowa)
Built ca. 1940
Through truss bridge over South Fork Maquoketa River on 30th Avenue
Replaced by a new bridge

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.

Millport Route M Bridge (Knox County, Missouri)
Built 1954 to replace the collapsed Millport Covered Bridge; replaced 2012
Lost pony truss on Route M near Millport over Middle Fork Fabius River
Replaced by a new bridge

Milroy Street Bridge (Allegheny County, Pennsylvania)
Built 1986
Steel stringer bridge over I-279 (Parkway North) on Milroy Street
Open to traffic

Milton Bridge (Wayne County, Indiana)
Built 1881; replaced 1997
Lost through truss bridge over Whitewater River on Milton Road
Replaced by new bridge

Milton Road Bridge (Wood County, Ohio)
Removed 2008
Unusual pony truss bridge over Needles Creek on Milton Road
Gone - Disposition unknown

Miltonsburg-Calais Road Bridge (Monroe County, Ohio)
Built 1927 by the Luten Bridge Co. of York, Pa.
Closed-spandrel arch bridge (ribbed) on Miltonsburg & Calais Road
Open to traffic

Milwaukee Avenue Viaduct (Monroe County, Wisconsin)
Built 1939; rehabilitated 1990
Deck truss bridge over Milwaukee Ave/Farmers Valley Creek/CP Rwy on WI 16/WI 71 in Sparta
Open to traffic

Milwaukee River Parkway, Lincoln Park, North Branch (Milwaukee County, Wisconsin)
Built 1940
Bridge over North Branch Milwaukee River on Milwaukee River Parkway
Open to traffic

Milwaukee River Parkway, Lincoln Park, South Branch (Milwaukee County, Wisconsin)
Built 1940
Lost earthen filled arch bridge over South Branch Milwaukee River on Milwaukee River Parkway
Demolished; Replaced by a new bridge

Milwaukee Street Bridge (Jefferson County, Wisconsin)
Built 1930
Lost concrete arch bridge over Rock River on Milwaukee Street in Watertown
Demolished, replaced by UCEB 2008

Milwaukee Street Bridge (Rock County, Wisconsin)
Built 1913
Concrete arch bridge over Rock River on Milwaukee Street in Janesville
Open to traffic

Mine Kill Bridge (Schoharie County, New York)
Built 1931; rehabilitated 1973
Open-spandrel arch bridge over Mine Kill on NY 30
Open to traffic

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

Mineral Bluff (Hwy. 60) Bridge (Fannin County, Georgia)
Built 1942; Replaced in 1992
Lost Steel stringer bridge over Hemptown Creek on Sr 60
Replaced by new bridge

Mineral Springs Rd.-Greens Fork Bridge (Wayne County, Indiana)
Lost concrete beam bridge over Greens Fork on Mineral Springs Road
Replaced by a new bridge

Minersville Bridge (Cambria County, Pennsylvania)
Built 1914; rehabilitated 1985
Through truss bridge over Conemaugh River on PA 3039 (4th Ave) connecting Cambria City to Minersville and Cambria Iron's Lower Works
Open to traffic

Minerva Creek Bridge (Marshall County, Iowa)
Built ca. 1920
Through truss bridge over Minerva Creek on Jessup Avenue
Open to traffic

Minerva Creek Bridge (Marshall County, Iowa)
Built 1919
Pony truss bridge over Minerva Creek on Davidson Avenue
Open to traffic

Minerva Creek Bridge (Marshall County, Iowa)
Built 1917
Concrete stringer bridge over Minerva Creek on Local
Open to traffic

Minnehaha Creek Bridge (Hennepin County, Minnesota)
Built 1890
Stone arch bridge over Minnehaha Creek on Minnehaha Avenue in Minneapolis
Open to traffic

Minnesota River Bridge (Sibley County, Minnesota)
Built 1934
Lost 3-span Parker through truss bridge over Minnesota River on MN 25 in Belle Plaine
This bridge was demolished and replaced in 2005.

Minnetonka Boulevard Bridge (Hennepin County, Minnesota)
Built 1939, Removed 2015
Concrete deck girder bridge over MN-100 on Minnetonka Blvd
No longer exists

Mishawaka Avenue Bridge (St. Joseph County, Indiana)
Built 1924; rehabilitated 1987
Concrete arch bridge over St. Joseph River on Mishawaka Avenue in Mishawaka
Open to traffic

Mission Creek Bridge (Brown County, Kansas)
Built 1905
Lost Bedstead pony truss bridge over Mission Creek in Horton
Lost

Mission Creek-Carlson Rd. Bridge (Shawnee County, Kansas)
Built ca. 1910; Replaced 2015
Through truss bridge over Mission Creek on Carlson Road
Replaced by a new bridge

Mississippi County Road 307 Bridge (Mississippi County, Missouri)
Built 1921
Pony truss on CR 307 (Old US 60) near Birds Point over a drainage ditch emptying into Brewer Lake
Intact but closed to all traffic

Mississippi County Road 310 Bridge (Mississippi County, Missouri)
Built ca. 1922; relocated here 1966
Destroyed pony truss bridge over a drainage ditch on CR 310
Destroyed by flooding in May 2011

Mississippi County Road 314 Bridge (Mississippi County, Missouri)
Built 1922 as part of a bridge with at least two spans; relocated here in 1965
Pony truss bridge over Ditch 29 on CR 314, just off MO 77 south of Wyatt
Open to traffic

Mississippi County Road 319 Bridge (Mississippi County, Missouri)
Built 1922 as part of a bridge with at least two spans; relocated here 1965
Pony truss bridge over Ditch 29 on CR 319 just off MO 77
Open to traffic

Mississippi County Road 325 Bridge (Mississippi County, Missouri)
Built 1922; relocated here in 1966
Pony truss bridge over Spillway Ditch on CR 325 southeast of Charleston
Open to traffic on a gravel road

Mississippi County Road 518 Bridge (Mississippi County, Missouri)
Built ca. 1922; relocated here 1965; replaced Summer 2005
Lost pony truss bridge over Four Mile Pond Drainage Ditch on CR 518 just east of MO 102
Replaced by a new bridge

Mississippi County Road 521 Bridge (Mississippi County, Missouri)
Built 1923; relocated here 1965; damaged by flooding in 2011; replaced 2014
Lost pony truss bridge on CR 521 over Wilkinson Drainage Ditch
Replaced by a new bridge

Mississippi River Slough Bridge (Buffalo County, Wisconsin)
Built 1955
Lost pony truss bridge over Mississippi River Slough on WI 25 in Nelson
Removed and replaced

Mistaken Creek Bridge (Grayson County, Kentucky)
Built ca. 1920
Lost Bedstead pony truss bridge over Mistaken Creek on Yeaman-Olaton Road
Replaced by a new bridge

Mitcham Road Railroad Bridge (Meriwether County, Georgia)
Built 1945
Timber stringer bridge over Csx Railroad on Mitcham Road
Open to traffic

Mitchell Creek Bridge (Frontier County, Nebraska)
Built 1905
Pony truss bridge over Mitchell Creek on Lake Road (Road 734), 4.5 mi. south and 7.2 mi. east of Stockville
Open to traffic

Mitchell River Bridge (Old) (Barnstable County, Massachusetts)
Built 1936; rehabilitated 1980 replaced 2014
Wooden bascule bridge over Mitchell River on Bridge Street in Chatham
Replaced by a new bridge

Mitchell Road Bridge (Wood County, Ohio)
Built ca. 1900; rehabilitated 1936
Pony truss bridge over North Branch Portage River on Mitchell Road
Bridge demolished

Mlk Blvd 2-2 Bridge (Cuyahoga County, Ohio)
Built 1943
Steel arch bridge over Doan Brook 2-2 on Mlk Blvd 2-2
Open to traffic

MN-7/CSAH-25 Overpass (Hennepin County, Minnesota)
Built 1939
Concrete deck girder bridge over MN 100 on MN 7 (CSAH 25)
Open to traffic

MN258 Cottonwood River Bridge (Brown County, Minnesota)
Built 1950; demolished and replaced 2012
Lost Parker through truss bridge over Cottonwood River on MN 258
Replaced by a new bridge

MO 215 Stockton Lake Bridge (Cedar County, Missouri)
Built 1966, Refurbished 2016
Steel deck girder bridge over Lake Stockton on MO 215
Open to traffic

MO 8 over Dry Fork Creek Bridge (Phelps County, Missouri)
Built 1948; rehabilitated 1985; replaced 2015
Lost steel stringer bridge over Dry Fork Creek on MO 8 and MO 68
Replaced by a new bridge

MO 96 Overpass (Jasper County, Missouri)
Built 1934; Replaced 2017
Concrete tee beam bridge over BNSF & MNA RR on MO 96 (Historic Route 66) in Carthage
Replaced by a new bridge

MO YY Bear Creek Bridge (Gentry County, Missouri)
Built 1927
Pony truss bridge over Bear Creek on Route YY (former MO 29)
Open to traffic

MO-H Roubidoux Creek Bridge (Pulaski County, Missouri)
Built 1955
Steel stringer bridge over Roubidoux Creek on Route H
Open to traffic

MO45 Bear Creek Bridge (Platte County, Missouri)
Built 1936; replaced 2009
Lost pony plate girder bridge over Bear Creek on MO 45
Replaced by a new bridge

Modock Creek Bridge (Ottawa County, Oklahoma)
Built ca. 1930
Pony truss bridge over Modock Creek on E0125
Closed to traffic, with rubble piles at each end.

Moenkopi Wash Bridge (Coconino County, Arizona)
Built 1915
Pony truss bridge over Moenkopi Wash on BIA Route N6731
Open to traffic

Moffett Mill Bridge (Beaver County, Pennsylvania)
Built 1929
Lost through truss bridge over Raccoon Creek on Moffet Mill Road
Replaced by a new bridge

Mohawk River Barge Canal Bridge (Montgomery County, New York)
Built 1932; rehabilitated 1993
Through truss bridge over Mohawk River Barge Canal on NY 80 in Nelliston
Open to traffic

Mohee Road Bridge (Blackford County, Indiana)
Built in 1894 by the Indiana Bridge Company, replaced in 1993.
Lost Warren Cantilever Bedstead pony truss bridge over Big Lick Creek on CR 350 W (Mohee Road)
Replaced by new bridge

Mokelumne River Bridge (San Joaquin County, California)
Built 1942; rehabilitated 1978
Swing bridge over Mokelumne River on CA 12
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

Mollys Run Bridge (Jefferson County, Indiana)
Built 1905
Pony truss bridge over Mollys Run on Brooksburg Manville Road (CR 260N)
Removed and replaced

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