Loyalsock Creek Bridge (Sullivan County, Pennsylvania)
Built 1941; rehabilitated 1983
Pony truss bridge over Loyalsock Creek on PA 87
Open to traffic

Loyalsock Creek Bridge (Sullivan County, Pennsylvania)
Built 1935; rehabilitated 1986
Through truss bridge over Loyalsock Creek on PA 87
Open to traffic

Lynn Avenue Bridge (Northampton County, Pennsylvania)
Built 1928
Through truss bridge over Conrail yard on Lynn Avenue in Bethlehem
Open to traffic

Mace Creek Bridge (Andrew County, Missouri)
Built ca. 1925
Through truss bridge over Mace Creek on CR 392
Open to traffic

Mahanoy Creek Bridge (Northumberland County, Pennsylvania)
Built 1940; rehabilitated 2001
Through truss bridge over Mahanoy Creek on PA 3006
Open to traffic

Mahoning River Bridge (Lawrence County, Pennsylvania)
Built 1932
Through truss bridge over Mahoning River on TR 395 (Old PA 18) in New Castle
Open to traffic

Marais des Cygnes River Bridge (Franklin County, Kansas)
Parker through truss bridge over Marais des Cygnes River on Burlington Northern Santa Fe Railroad
Open to traffic

Marion Memorial Bridge (Marion County, Tennessee)
Built 1929; tolls removed 1947; rehabilitated 1966
Through truss bridge over Nickajack Lake (Tennessee River) on US 41/US 64/US 72/TN 2 (Dixie Highway)
Open to two-lane traffic

Marmaton River Bridge (Bourbon County, Kansas)
Parker through truss bridge over Marmaton River on Abandoned Railroad Grade
Closed to all traffic

Marsh Creek Bridge (Tioga County, Pennsylvania)
Built 1940; rehabilitated 1983
Pony truss bridge over Marsh Creek on PA 287
Open to traffic

Martin Bridge (Ouachita County, Arkansas)
Lost swing through truss bridge over Ouachita River at Camden
Replaced in 1947 by the Ben Laney Bridge

Mason Bridge (Texas County, Missouri)
Built 1926
Closed through truss bridge over Big Piney River on Mason Road (Old MO 32) west of Licking
Closed to all traffic

Massie Creek Katy Trail Bridge (Warren County, Missouri)
Pony truss bridge over Massie Creek on the Katy Trail just off MO 94
Open to pedestrians and bicyclists only

Mcardle Viaduct (Allegheny County, Pennsylvania)
Built 1933; rehabilitated 1960
Through truss bridge over the Norfolk Southern Railroad on Mcardle Roadway in Pittsburgh
Open to traffic

McKeesport-Duquesne Bridge (Allegheny County, Pennsylvania)
Built 1927 by the American Bridge Co.
Through truss bridge over the Monogahela River on PA 2114 at Duquesne in North Versailles
Open to traffic

Medicine Creek Route PP Bridge (Sullivan County, Missouri)
Built 1955
Pony truss bridge over East Fork Medicine Creek on Route PP
Open to traffic

Mehoopany Creek Bridge (Wyoming County, Pennsylvania)
Built 1932; rehabilitated ca. 1980
Through truss bridge over Mehoopany Creek on PA 87
Open to traffic

Mercer Street Bridge (Crawford County, Pennsylvania)
Built 1936; rehabilitated 1984
Through truss bridge over French Creek on Mercer Street in Meadville
Open to traffic

Meshoppen Creek Bridge (Wyoming County, Pennsylvania)
Built 1934; rehabilitated ca. 1985
Through truss bridge over Meshoppen Creek on PA 267 in Meshoppen
Open to traffic

Middle Creek Bridge (Snyder County, Pennsylvania)
Built 1949; rehabilitated 1987
Pony truss bridge over Middle Creek on US 522 in Kreamer
Open to traffic

Middle Fork CR 4 Bridge (Highland County, Ohio)
Built 1940; rehabilitated 1969
Pony truss bridge over Middle Fork on CR 4
Open to traffic

Mile Corner Road Bridge (Cooper County, Missouri)
Replaced by new bridge in 1989
Abandoned through truss bridge over Petite Saline Creek on Mile Corner Road
Replaced by new bridge, but allowed to remain standing

Mill Run Bridge (Fayette County, Pennsylvania)
Built 1930; rehabilitated 1980
Through truss bridge over Indian Creek Reservoir on PA 381
Open to traffic

Milltown High Street Bridge (Warren County, Pennsylvania)
Built 1937; rehabilitated 1982
Pony truss bridge over Tionesta Creek on PA 2002 (High Street) in Milltown
Open to traffic

Minersville-Johnstown Bridge (Cambria County, Pennsylvania)
Built 1914; rehabilitated 1985
Through truss bridge over Conemaugh River on PA 3039 in Johnstown
Open to traffic

Montezuma Bridge (Parke County, Indiana)
Built 1949; rehabilitated 1987
Six-span through truss bridge over Wabash River on US 36 at Montezuma
Open to two-lane traffic

Montoursville Bridge (Lycoming County, Pennsylvania)
Built 1931; rehabilitated 1994
Three-span through truss bridge over Loyalsock Creek on PA 2014 in Montoursville
Open to traffic

Morrilton Bridge (Conway County, Arkansas)
Lost swing through truss bridge over Arkansas River on AR 9 at Morrilton
No longer exists

Moshannon Creek Bridge (Centre County, Pennsylvania)
Built 1938
Pony truss bridge over Moshannon Creek on PA 53
Open to traffic

Moshannon Creek Bridge (Clearfield County, Pennsylvania)
Built 1940; rehabilitated 1971
Pony truss bridge over Moshannon Creek on TR 680 in Chester Hill
Open to traffic

Mount Carmel Bridge (Wabash County, Illinois)
Built 1932; rehabilitated 1987
Through truss bridge over Wabash River on IL 15/IN 64 in Mount Carmel
Open to traffic

Moxadarla Road Bridge (Muskingum County, Ohio)
Pony truss bridge over Moxahala Creek on Moxadarla Road
Open to traffic

Muddy Creek Bridge (Greene County, Pennsylvania)
Built 1903
Pony truss bridge over Muddy Creek on TR 634
Open to traffic

Muddy Fork TR 1550 Bridge (Ashland County, Ohio)
Built 1932
Pony truss bridge over Muddy Fork on Township Road 1550
Open to traffic

Mulberry River AR 23 Bridge (Franklin County, Arkansas)
Built 1935 by McEachin and McEachin, Inc., of Little Rock
Three-span pony truss bridge over Mulberry River on AR 23
Open to traffic

Muncy Creek Bridge (Sullivan County, Pennsylvania)
Built 1939; rehabilitated 1980
Pony truss bridge over Muncy Creek on PA 2002
Open to traffic

Murphysboro Bridge (Jackson County, Illinois)
Built 1942; replaced 2000
Lost through truss bridge over Big Muddy River on Town Creek Road (CH 5/FAS 917) at Murphysboro
Replaced by a new bridge

Muscatatuck River IN 256 Bridge #2 (Jackson County, Indiana)
Built 1941
Parker through truss bridge over Muscatatuck River on IN 256
Open to traffic

Muskingum River CR 203 Bridge (Morgan County, Ohio)
Built 1913 by the Oregonia Bridge Co. of Lebanon, Oh.; rehabilitated 1991
Through truss bridge over Muskingum River on County Road 203 in McConnelsville
Open to traffic

Nebraska Bridge (Forest County, Pennsylvania)
Built 1933; rehabilitated 1999
Through truss bridge over Tionesta Dam Creek on PA 3004
Open to traffic

Neosho River Bridge (Neosho County, Kansas)
Abandoned parker through truss bridge over Neosho River
Abandoned

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

Neosho River Bridge (Lyon County, Kansas)
Parker through truss bridge over Neosho River on Atchison, Topeka, and Santa Fe (ATSF) Railroad
Open to traffic

Nescopeck Creek Bridge (Luzerne County, Pennsylvania)
Built 1936; rehabilitated 1986
Pony truss bridge over Nescopeck Creek on PA 93
Open to traffic

Neshannock Creek Bridge (Lawrence County, Pennsylvania)
Built 1917; rehabilitated 1982
Through truss bridge over Neshannock Creek on Mill Street in New Castle
Open to traffic

New Harmony Bridge (Posey County, Indiana)
Built 1932
Closed four-span through truss toll bridge over Wabash River on IL 14 at New Harmony, Indiana
Closed to all traffic

New Kensington Bridge (Allegheny County, Pennsylvania)
Built 1927; rehabilitated ca. 1988
Three-span through truss bridge over Allegheny River on PA 1038 in New Kensington
Open to traffic

Norfolk Southern Railroad Bridge (Blair County, Pennsylvania)
Built 1939; rehabilitated 1992
Through truss bridge over Norfolk Southern Railroad on Business US 220 (PA 4027)
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

North Boat Ditch US 67 Bridge (Clark County, Arkansas)
Built 1931 by the Virginia Bridge & Iron Co. of Roanoke, Virginia
Pony truss bridge over North Boat Ditch of Terre Noire Creek on US 67
Open to traffic

North River Road Bridge (Wood County, Ohio)
Built before 1900; rehabilitated 1981
Pony truss bridge over North Branch Portage River on North River Road (CR 257A)
Closed to all 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

Noser Mill Bridge (Franklin County, Missouri)
Built 1902; bypassed 1975
Lost through truss bridge over Bourbeuse River on MO 185
Removed

Nyberg Bridge (Pueblo County, Colorado)
Built 1925; replaced 2005
Lost through truss bridge over the Arkansas River on CR 442 near Avondale
No longer exists

Occoquan River Bridge (Prince William County, Virginia)
Parker through truss bridge over Occoquan River on Richmond, Fredericksburg and Potomac Railroad
Open to traffic

OH 7 Bridge (Lawrence County, Ohio)
Built 1933; rehabilitated 1990
Through truss bridge over Symmes Creek on OH 7 in Chesapeake
Open to traffic

Ohio Brush Creek OH 348 Bridge (Adams County, Ohio)
Built 1924 by the Champion Bridge Co.; rehabilitated 1996
Through truss bridge over Ohio Brush Creek on OH 348
Closed to all traffic

Old Brownsville Bridge (Washington County, Pennsylvania)
Built 1913; rehabilitated 1987
Through truss bridge over Monongahela River in West Brownsville
Open to traffic

Old Camp Nelson Bridge (Garrard County, Kentucky)
Built 1927 and replaced the Camp Nelson Covered Bridge. However, in turn, it was replaced by the new (US 27) Camp Nelson Bridge in 1972.
Parker Truss bridge over Kentucky River on Old Lexington Road
Closed to all traffic

Old TN 100 Bridge (Davidson County, Tennessee)
Parker through truss bridge over South Harpeth River on Old Harding Rd. (Old TN 100) in Nashville
Closed to all traffic

Old US 14 Bridge (Sheridan County, Wyoming)
Bridge made obselete by new bridge in 1994, and is now a pedestrian bridge.
Parker pony truss bridge over Tongue River on Old US 14 in Dayton
Open to pedestrians

Old Yankton Road Bridge (Minnehaha County, South Dakota)
Built 1895 by S.M. Hewett
Through truss bridge over Big Sioux River on Old Yankton Road in Sioux Falls
Open to pedestrians only

Oldham Bridge (Somerset County, Pennsylvania)
Built 1908
Pony truss bridge over Clear Shade Creek on TR 816 (Crum Road)
Open to traffic

Olentangy River CR 141E Bridge (Marion County, Ohio)
Built 1937; rehabilitated 1987
Through truss bridge over Olentangy River on County Road 141E
Open to traffic

Onion Creek Bridge (Montgomery County, Kansas)
Built 1911 by the Western Bridge Co.
Through truss bridge over Onion Creek just south of US 166 near Coffeyville
May or may not still be standing

Ouachita River AR 27 Bridge (Montgomery County, Arkansas)
Lost through truss bridge over the Ouachita River on AR 27
No longer exists

Packsaddle Bridge (Roger Mills County, Oklahoma)
Built 1929-30; replaced 1985
Lost 26-span through truss bridge over South Canadian River on US 283
Replaced by a modern bridge

Paris Landing Bridge (Henry County, Tennessee)
Built 1927; replaced 1992
Lost through truss bridge over Tennessee River on TN 76
No longer exists

Paris Railroad Bridge (Monroe County, Missouri)
Through truss bridge over Middle Fork Salt River on the Norfolk Southern Railroad in Paris
Open to railroad traffic

Parker Bridge (Armstrong County, Pennsylvania)
Built 1934
Four-span through truss bridge over Allegheny River on PA 368 at Parker
Open to traffic

Parkin Bridge (Cross County, Arkansas)
Lost swing through truss bridge over St. Francis River on US 64 at Parkin
Replaced by a new bridge in 1954

Pearl City Bridge (Lincoln County, Tennessee)
Built 1919
Abandoned parker through truss bridge over Elk River on Dyer Road
Abandoned

Penns Creek Bridge (Union County, Pennsylvania)
Built 1904 by the Owego Bridge Co.; rehabilitated 1949
Through truss bridge over Penns Creek on TR 309
Open to traffic

Penns Creek Bridge (Centre County, Pennsylvania)
Built 1938; rehabilitated 1974
Pony truss bridge over Penns Creek on PA 2011 in Coburn
Open to traffic

Penns Creek Bridge (Centre County, Pennsylvania)
Built 1937
Pony truss bridge over Penns Creek on PA 45 in Spring Mills
Open to traffic

Perry Bridge (Jefferson County, Kansas)
Built 1926 by the Midland Bridge Co.
Through truss bridge over Delaware River on Bridge Street (Old US 24) just west of Perry in Perry
Open to two-lane traffic

Peshtigo River WI 64 Bridge (Marinette County, Wisconsin)
Built 1931; rehabilitated 1979
Through truss bridge over Peshtigo River on WI 64
Open to traffic

Petit Jean River AR 7 Bridge (Yell County, Arkansas)
Built 1930; replaced 1993
Lost pony truss bridge over Petit Jean River on AR 7
Replaced by a new bridge

Pigeon Creek Bridge (Washington County, Pennsylvania)
Built 1935
Pony truss bridge over Pigeon Creek on PA 481 in Monongahela
Open to traffic

Pikes Peak Bridge (Pulaski County, Missouri)
Built 1932
Through truss bridge over Gasconade River on MO 17 north of Waynesville
Open to two-lane traffic, but in very poor condition

Pine Creek Bridge (Tioga County, Pennsylvania)
Built 1937
Through truss bridge over Pine Creek on PA 3001
Open to traffic

Pine Street Bridge (Snyder County, Pennsylvania)
Built 1952; rehabilitated 1992
Three-span pony truss bridge over Penns Creek on E. Pine Street (PA 1011) in Selinsgrove
Open to traffic

Pocahontas Bridge (Randolph County, Arkansas)
Built 1934 by the Pittsburgh-Des Moines Steel Co., replacing an earlier through truss structure located closer to the railroad bridge. Parallel bridge built 1986.
Through truss bridge with a center swing span over Black River on US 67 at Pocahontas
Open to two lanes of westbound traffic; eastbound traffic is carried by a parallel deck girder bridge

Point Remove Creek AR 124 Bridge (Conway County, Arkansas)
Built 1957-58
Through truss bridge over West Fork Point Remove Creek on AR 124
Open to traffic

Pomme de Terre River Bridge (Polk County, Missouri)
Built 1914 by the Canton Bridge Co.
Through truss bridge over Pomme de Terre River on 117th Road, just beyond the end of Route NN
Open to traffic

Pomme de Terre River CR 273 Bridge (Hickory County, Missouri)
Through truss bridge over Pomme de Terre River on CR 273
Open to traffic

Poncha Springs Bridge (Chaffee County, Colorado)
Built 1938
Pony truss bridge over South Arkansas River on US 285 at Poncha Springs
Open to traffic

Pond Creek US 60 Bridge (Grant County, Oklahoma)
Built 1934
Pony truss bridge over Pond Creek on US 60
Open to traffic

Portage Creek Bridge (Cameron County, Pennsylvania)
Built 1933
Pony truss bridge over Portage Creek on PA 120 in Emporium
Open to traffic

Porter's Bluff Bridge (Benton County, Arkansas)
Built 1904; replaced 1963
Lost through truss over White River (now Beaver Lake) on AR 12 east of Rogers
Replaced by a modern bridge in conjunction with the creation of Beaver Lake

Poteau River Bridge (Le Flore County, Oklahoma)
Built 1952
Through truss bridge over Poteau River on E1395 (Old US 59) in Poteau
Open to traffic

Prairie River M-86 Bridge (St. Joseph County, Michigan)
Built 1923; rehabilitated 1938
Pony truss bridge over Prairie River on M-86
Open to traffic

Prospect Bridge (Marion County, Ohio)
Built 1913 by the Standard Engineering Co.; rehabilitated 1985
Through truss bridge over Scioto River on OH 47 in Prospect
Open to two-lane traffic

Purgatoire River US 350 Bridge (Las Animas County, Colorado)
Built 1937
Pony truss bridge over Purgatoire River on US 350
Open to two-lane traffic on a major state highway

R.H. Henry Bridge (Warren County, Mississippi)
Built 1929
Through truss bridge over Big Black River on Old US 80
Open to traffic

Rapps Mill Bridge (Lawrence County, Pennsylvania)
Built 1928
Through truss bridge over Connoquenessing Creek on Portersville Road
Open to traffic

Red Canyon Bridge (Eagle County, Colorado)
Built 1933; replaced 2001
Lost through truss bridge over Eagle River on US 6, 6.5 mi. east of Eagle
Replaced by a new bridge

Rinard Mills Road Bridge (Monroe County, Ohio)
Pony truss bridge over Little Muskingum River on Rinard Mills Road (CR 20)
Open to traffic

Rivaux Creek Katy Bridge (Callaway County, Missouri)
Built 1896 by the A&P Roberts Co. of Pencoyd, Pennsylvania
Pony truss bridge over Rivaux Creek on the Katy Trail (former MKT Railroad), just east of Wainwright
Open to pedestrians and bicyclists only

River Road Bridge (Greene County, Missouri)
Built during the 1920's; bypassed by new bridges on US 60 in 1953 and US 65 in 1960
Preserved through truss bridge over James River on River Road (Old US 60/65) in Springfield
Open to pedestrians only as part of a city walking trail, but could still handle vehicular traffic