McGilvray Road Bridge No. 4 (La Crosse County, Wisconsin)
Built 1907 by the the La Crosse Bridge & Steel Co.
Two-span bowstring truss bridge over a tributary of Black River on Old McGilvray Road in Van Loon Wildlife Area
Open to pedestrians only

McGilvray Road Bridge No. 6 (La Crosse County, Wisconsin)
Built 1905 by the the La Crosse Bridge & Steel Co.
Bowstring truss bridge over a tributary of Black River on Old McGilvray Road in Van Loon Wildlife Area
Open to pedestrians only

Meeting House Bridge (York County, Maine)
Replaced 1995
Lost Howe pony truss bridge over Boston & Maine Road on Sinnott Road
Replaced by new bridge

Mengo Bridge (Butler County, Missouri)
Built 1906 by the American Bridge Co.
Two-span through truss bridge over Black River on the Union Pacific Railroad, between Poplar Bluff and Hilliard
Still in use

Middle Creek Bridge (Miami County, Kansas)
Built 1907
Through truss bridge over Middle Creek on 379th Street, 1.5 mi. south and 1.8 mi. west of New Lancaster
Open to traffic

Middle Creek Road Bridge (Lancaster County, Pennsylvania)
Built 1909; rehabilitated 1925
Pony truss bridge over Cocalico Creek on Middle Creek Road in Rothsville
Closed to all traffic

Middle River Route 774 Bridge (Augusta County, Virginia)
Built 1903
Through truss bridge over Middle River on Route 774
Open to traffic

Middle River Route 775 Bridge (Augusta County, Virginia)
Built 1903
Through truss bridge over Middle River on Route 775
Open to one-lane traffic

Middle River VA 256 Bridge (Augusta County, Virginia)
Built 1907 by the Champion Bridge Co.
Three-span through truss bridge over Middle River on VA 256
Closed to all traffic

Midland Fredericktown Road Bridge (Columbiana County, Ohio)
Built 1900; rehabilitated 2004
Through truss bridge over North Fork Little Beaver Creek on Midland Fredericktown Road (TR 1038) in Calcutta
Open to traffic

Milford Bridge (Somerset County, Pennsylvania)
Built 1900
Pratt pony truss bridge over Coxes Creek on Abandoned TR486
Open to pedestrians

Mill Creek Covered Bridge (Parke County, Indiana)
Built 1907 by D.M. Brown
Covered bridge over Mill Creek on CR N550W
Open to traffic

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

Mill Street C&NW Bridge (Sheboygan County, Wisconsin)
Built 1907
Pony/through plate girder bridge over Wis 67/Mill Street on C&NW (abandoned) in Plymouth
Closed to all traffic

Mill Street Milwaukee Road Bridge (Sheboygan County, Wisconsin)
Built 1907
Pony/through plate girder bridge over WI 67-Mill Street on Wisconsin & Southern Railroad in Plymouth
Open to traffic

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 CR 469
Replaced by a new bridge

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

Minnow Slough Bridge (Crawford County, Illinois)
Built 1909
Wooden deck bridge over Minnow Slough on TR 163, 1 mi. east of Palestine
Open to traffic

Minnow Slough Bridge No. 2 (Crawford County, Illinois)
Built 1909; rehabilitated 1982
Wooden deck bridge over Minnow Slough on TR 169A, 1.5 mi. NE Palestine
Open to traffic

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

Missouri and North Arkansas Tunnel (Carroll County, Arkansas)
Chartered in 1899 and finished in 1906 by the M & NA Railway
Collapsed tunnel under under a hill 7 miles northeast of Eureka Springs on former Arkansas & Ozarks Railway
Collapsed

Mollys Run Bridge (Jefferson County, Indiana)
Built 1905
Pony truss bridge over Mollys Run on Brooksburg Manville Road (CR 260N)
Open to one-lane traffic

Monegaw Creek NW 1001 Bridge (St. Clair County, Missouri)
Built ca. 1910 by the Standard Bridge Co.
Pony truss bridge over Monegaw Creek on CR NW 1001
Open to traffic

Monongahela Connecting Railroad Bridge (Allegheny County, Pennsylvania)
Built 1904; converted to vehicular use in 2000
Through truss bridge over Monongahela River on Gateway Blvd. in Pittsburgh
Open to traffic

Morris Spur I&M Canal Bridge (Grundy County, Illinois)
Through truss bridge over Illinois and Michgan Canal on Rock Island Railroad
Open to railroad traffic

Morse Near Bridge (Oceana County, Michigan)
Replaced 1998
Lost Warren pony truss bridge over North Branch Pentwater River on 96th Avenue
Replaced by new bridge

Morton's Highway Crossing (Kalamazoo County, Michigan)
Built 1904; Replaced 1992
Lost Concrete through arch bridge over Amtrak/Conrail Railroad on O Avenue in Near Oshtemo
Replaced by new bridge

Mount Si Road Bridge (King County, Washington)
Built 1904; rehabilitated 1955, Replaced 2008-09
Through truss bridge over Middle Fork Snoqualmie River on Mount Si Road in Tanner
Replaced by a NEW THROUGH TRUSS bridge in 2008

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

Mud Creek Bridge (Livingston County, Illinois)
Built 1901
Pony truss bridge over Mud Creek on TR 52A
Open to traffic

Mullet River Rail Bridges (Sheboygan County, Wisconsin)
Built 1902
Deck plate girder bridges over Mullet River on Wisconsin & Southern Railroad (Formerly Milwaukee Road) and C&NW in Plymouth
Open to traffic

Multon Falls Tunnel (Clark County, Washington)
Built in 1901 by the Portland, Vancouver and Yakima Railroad
Tunnel on Chelatchie Prairie Railroad
Open to traffic

Murray Bridge (Humboldt County, Iowa)
Built 1905 by A.H. Austin; rehabilitated 1982; damaged in car wreck during 2004
Through truss bridge over West Fork Des Moines River on 190th Street, southeast of Bradgate
Closed to traffic

Muscoot Reservoir Bridge (Westchester County, New York)
Built 1904
Steel deck arch bridge over Muscoot Reservoir on Lakeside Road
Closed to all traffic

Muskingum River Stillwell Rd. bridge (Muskingum County, Ohio)
Through truss bridge over Muskingum River on Stillwell Road
Closed to all traffic

Myrtle Creek Railroad Bridge (Douglas County, Oregon)
Built 1906
Pratt through truss bridge over South Umpqua River on Central Oregon and Pacific Railroad in Myrtle Creek
Open to traffic

Nachitoch Bluff Bridge (Clark County, Arkansas)
Built 1908 by the Morava Construction Co.; rehabilitated 1980; closed to traffic ca. 1996
Derelict two-span through truss over Little Missouri River, just upstream from I-30
Abandoned, with deck partially missing

Neet Bridge (Parke County, Indiana)
Built 1904 by J.J. Daniels
Burr arch-truss bridge over Little Raccoon Creek on CR 200E (Bridgeton Road)
Open to pedestrians

Nelson Street Bridge (Fulton County, Georgia)
Built 1906
Concrete tee beam bridge over Southern Railroad on Nelson Street in Atlanta
Closed to all traffic

Neosho River Bridge (Neosho County, Kansas)
Built 1908
Through truss bridge over Neosho River, 2.4 mi. west of Erie
Closed to all traffic

Nepesta Bridge (Pueblo County, Colorado)
Built 1905-06 by the Pueblo Bridge Co.; replaced 1989
Lost two-span through truss bridge over Arkansas River on Nepesta Road (CR 613) southeast of Boone
Replaced by a new bridge

New Bedford-Fairhaven Middle Bridge (Bristol County, Massachusetts)
Swing span built 1897-99
Through truss swing bridge over Acushnet River on US 6 at New Bedford
Open to traffic

New Croton Reservoir Bridge (Westchester County, New York)
Built 1904
Through truss bridge over New Croton Resvervoir
Open to traffic

Newell Toll Bridge (Hancock County, West Virginia)
Built 1905; rehabilitated 1954
Private suspension bridge over the Ohio River on Golding Street Extension between Newell and East Liverpool
Open to toll traffic

Newville Road Bridge (Lancaster County, Pennsylvania)
Built 1900; rehabilitated 1960
Pony truss bridge over Amtrak on Newville Road
Closed to all traffic

Nickel Plate IMC Wildcat Creek Bridge (Howard County, Indiana)
Unknown builder, replaced covered bridge formerly at this location. This bridge survived the great flood of 1913 due to Lake Erie and Western Railroad loading bridge down with loaded coal cars.
Pratt through truss bridge over Wildcat Creek on Central Railroad of Indianapolis Railroad, soon possibly trail in Kokomo
Intact

Ninabuck Road Bridge (Dodge County, Wisconsin)
Built ca. 1907; Replaced 1996
Lost Pratt through truss bridge over Crawfish River on Ninabuck Road in Town of Elba
Unknown but it was replaced by new bridge

Norfolk Southern Railway Bridge (Davidson County, North Carolina)
Warren deck truss bridge over Yadkin River on Norfolk Southern Railway
Open to traffic

Norfork Railroad Bridge (Baxter County, Arkansas)
Built ca. 1909
Three-span through truss bridge over North Fork White River and Prospect Street on the railroad at Norfork
Open to railroad traffic

Norristown Farm Park Bridge (Montgomery County, Pennsylvania)
Built 1905
Wooden bridge over SEPTA Stony Creek Branch at dead end of Stanbridge Street in Norristown
Closed to all traffic

North Avenue Bridge (Cook County, Illinois)
Built 1907
Double-leaf bascule through truss bridge over North Branch Chicago River on North Avenue in Chicago
Open to two-lane traffic

North Fork Bridge (Marion County, Illinois)
Built ca. 1909
Pony truss bridge over North Fork on Shepherds lane
Open to traffic

North Fork Coal Creek Bridge (Fountain County, Indiana)
Built 1901
Through truss bridge over North Fork Coal Creek on CR 200 East
Open to traffic

North Fork Holston River CSX Railroad Bridge (Sullivan County, Tennessee)
Construction started in 1907 by the South and Western Railroad Co., and finished in 1908 by its successor, the Carolina, Clinchfield and Ohio Railroad Company (now CSX)
3-span Howe through truss railroad bridge over North Fork Holston River on CSX Railroad in Kingsport
Open to rail traffic

North Fork Little Maquoketa River Bridge (Dubuque County, Iowa)
Built 1901
Pony truss bridge over North Fork Little Maquoketa River on a local road
Open to traffic

North Halsted Street Bridge (Cook County, Illinois)
Built 1909
Bascule bridge over North Branch Chicago River Canal on N. Halsted Street in Chicago
Open to traffic

North Park Bridge (Kent County, Michigan)
Build 1903; Altered 1933; Replaced 1991
Lost Pratt through truss bridge over Grand River on North Park Street in Grand Rapids
Replaced by new bridge

North Railroad Street Bridge (Rush County, Indiana)
Built 1901 by the New Castle Bridge Co.
Through truss bridge over Little Flatrock River on North Railroad Street
Closed to all traffic

North Umpqua Railroad Bridge (Douglas County, Oregon)
Built 1906
Pratt through truss bridge over North Umpqua River on Central Oregon and Pacific Railroad in Winchester
Open to traffic

North Wea Creek Bridge (Miami County, Kansas)
Built 1905
Parker through truss bridge over North Wea Creek, 3.5 mi. south and 7.8 mi. west of Louisburg
Closed to all traffic

Nowland Avenue Bridge (Marion County, Indiana)
Built 1902
Stone arch bridge over Pogue's Run on Nowland Avenue
Closed to all traffic

Nugents Road Bridge (Linn County, Iowa)
Built 1904; rehabilitated 1990
Through truss bridge over Buffalo Creek on Nugents Road
Open to traffic

Oconomowoc River CPRR Arch Bridge (Waukesha County, Wisconsin)
Built 1902 by The Milwaukee Road Railroad (CMStP&P RR)
Closed-spandrel arch bridge over Oconomowoc River on Canadian Pacific Railroad in Oconomowoc
Open to traffic

Okabena Creek Bridge (Jackson County, Minnesota)
Built 1905; relocated to this spot and rehabilitated 1938; closed to traffic in 1990
Pony truss bridge over Okabena Creek on CR 187
Closed to all traffic

Okmulgee Creek Bridge (Okmulgee County, Oklahoma)
Built 1909
Arch bridge over Okmulgee Creek on OK 56 in Okmulgee
Open to traffic

Old Cascade Tunnel (King County, Washington)
The Original Cascade Tunnel was finished in 1900 and was built to replace a series of 8 switchbacks used to get over the mountains. Deadliest avalanche in US history occurred March 1, 1910 at Wellington (western portal). 96 people killed.
Abandoned tunnel under the Cascade Mountains on former Great Northern Railway
Abandoned

Old Federal Road Underpass (Polk County, Tennessee)
Built 1906, modified sometime later
Beam bridge over Old Federal Road on CSX Railroad 347884v
Open to traffic

Old Little River Railroad Deck Truss Bridge at Ekmont (Sevier County, Tennessee)
Built in 1908 by Little River Lumber Co.
Deck truss bridge over Little River on road/railrad
Closed to all traffic

Old Railroad bridge at Panama (Le Flore County, Oklahoma)
Built 1903
Abandoned bridge. Originally carried Midland Valley Railroad, later carried county road, now abandoned in Panama. 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

Old Railroad Lane Cumberland River Bridge (Knox County, Kentucky)
Built 1905 for the Cumberland Railroad Company
Through truss bridge over Cumberland River on Old Railroad Lane
Open to traffic

Old Rusty Bridge (Clay County, Iowa)
Built 1901 by the Clinton Bridge & Iron Works; relocated here in 1915
Through truss bridge over Little Sioux River on 210th Avenue north of Spencer in Spencer
Open to one-lane traffic

Old Scotland Bridge (Boone County, Indiana)
Built 1901
Three-span stone arch bridge over Sugar Creek on CR 200E
Open to traffic

Old St. Charles Bridge (St. Charles County, Missouri)
Completed 1904; closed to traffic in 1992; finally dismantled in 1997
Lost four-span through truss bridge over the Missouri River at St. Charles
Replaced by a new bridge

Old US 42 Kentucky River Bridge (Carroll County, Kentucky)
Built 1900
Lost Parker through truss bridge over Kentucky River on US 42 in Carrollton
Replaced by new bridge

Old Wallace Thompson Road Bridge (Marshall County, Tennessee)
Built 1902 by the Youngstown Bridge Company, Youngstown, Ohio
Lost Pratt through truss bridge over Big Rock Creek on Wallace Thompson Road in Northern Marshall County
Replaced by new bridge

Only Bridge (Hickman County, Tennessee)
Built 1907 by the Nashville Bridge Co.; Bypassed by a new bridge in 1962.
Derelict through truss bridge over Duck River on TN 50 near Only
Derelict with deck and approaches removed

Oostanaula Bridge (Gordon County, Georgia)
The piers and stone abutments are from the 1840's, the trusswork is from the early 1900's
Deck girder bridge over Oostanaula River on CSX Railroad in Resaca


Opossum Creek ICRR Bridge (Shelby County, Illinois)
Built ca. 1900
Abandoned arch bridge over Opossum Creek on ICRR, 2 mi. north of Oconee
Abandoned

Orangeville Bridge (Orange County, Indiana)
Through truss bridge over Lost River on CR 520 West
Open to traffic

Oriental Covered Bridge (Juniata County, Pennsylvania)
Built 1908; rehabilitated 1987
Covered bridge over West Branch Mahantango Creek on PA 2023
Open to traffic

Ottawa Fox River Bridge (La Salle County, Illinois)
Abandoned railroad bridge over the Fox River
Abandoned deck plate girder bridge on Illinois Traction System in Ottawa
Abandoned but awaiting plans to convert into a pedestrian trail

Owens Mill Bridge (Cedar County, Missouri)
Built 1906 by the Canton Bridge Co.; replaced 2008
Lost through truss bridge over Bear Creek on CR 1801
No longer exists

Owl Creek Bridge (Allen County, Kansas)
Built 1909
Pony truss bridge over Owl Creek, 3.4 mi. west of Humboldt
Open to traffic

Palm Tree Road Bridge (Fond du Lac County, Wisconsin)
Built in 1903; Repaired in 1950 by Francis Dreifuerst
Stone arch bridge over Sheboygan River on Palm Tree Road
Open to traffic

Paoli Trestle Monon Railroad (Orange County, Indiana)
Originally built of Wood construction and replaced, this bridge connected the Monon's mainline at Orleans with the resort towns of West Baden and French Lick. Abandoned in 1982 and removed. 85 feet high.
Lost Deck plate girder bridge over Lost River on former Family Lines (ex- Louisville and Nashville, Monon Railroad) in Paoli
Lost

Pape Bridge (St. Clair County, Missouri)
Built 1911 by the Standard Bridge Co.
Through truss bridge over Little Clear Creek on CR SW 400
Open to traffic

Paradise Creek Bridge (Russell County, Kansas)
Built 1901
Stone arch bridge over Paradise Creek
Open to traffic

Pecos River Flume (Eddy County, New Mexico)
Built ca. 1903
Four-span concrete arch aqueduct carrying Southern Main Canal over Pecos River at Carlsbad
Still carries water

Penobscot Bridge (Penobscot County, Maine)
Replaced 1997
Lost Pennsylvania through truss bridge over Penobscot River & Rr Yard on Route 15 in Bangor
Replaced by new bridge

Perry County Road 838 Bridge (Perry County, Missouri)
Built 1905; reconstructed 1986
Bedstead pony truss bridge over a branch of Saline Creek on CR 838
Open to traffic

Peterson Ford Bridge (Delaware County, Indiana)
Built 1902; rehabilitated 1985
Through truss bridge over Mississinewa River on CR 850 North
Open. Floor beams replaced and new metal deck installed. 3 Ton limit.

Phillips Covered Bridge (Parke County, Indiana)
Built 1909 by J.A. Britton
Covered bridge over Rocky Run on CR 450W, southeast of Montezuma
Open to traffic

Pigeon Creek Bridge (Iroquois County, Illinois)
Built 1904
Lost through truss bridge over Pigeon Creek on TR 146, 0.5 mi. east of Cissna Pk
Replaced by a new bridge

Pin Oak Bridge (Madison County, Illinois)
Built ca. 1901; rehabilitated 1968
Pony truss bridge over Silver Creek on TR 236 (Pin Oak Road), 4.0 mi. northwest of Marine
Open to traffic

Piney Branch Bridge (Randolph County, Illinois)
Built 1901; bypassed by new bridge in 2002
Derelict bedstead pony truss bridge over Piney Branch on Piney Creek Road
Still standing, but in terrible condition with deck removed

Pleasant Ridge Road Bridge (Caldwell County, Missouri)
Built 1904 by contractor John H. Sparks
Bedstead pony truss bridge over Cottonwood Creek on N.E. Pleasant Ridge Road
Open to traffic

Polecat Creek Bridge (Butler County, Kansas)
Built ca. 1901
Stone arch bridge over Polecat Creek, 1.4 mi. east and 5.0 mi. south of Rose Hill
Open to traffic

Polk Road Bridge (Jefferson County, Indiana)
Built 1905
Pony truss bridge over Little Creek on Polk Road (CR 100S)
Open to one-lane traffic

Polley Lane Bridge (Taylor County, Wisconsin)
Built 1908; Demolished 1987
Lost Pratt through truss bridge over Yellow River on Polley Lane in Town of Aurora
Replaced by new bridge

Poole's Mill Bridge (Forsyth County, Georgia)
See above. Now part of a county park.
Lattice through truss bridge over Settendown (Settingdown) Creek on Poole's Mill Road
Open to pedestrians