Built 1921
Sagg Road Bridge (Suffolk County, New York)
Built 1921; rehabilitated 2003
Wooden bridge over LIRR Montauk Branch on Sagg Road in Wainscott
Open to traffic
Built 1921; rehabilitated 2003
Wooden bridge over LIRR Montauk Branch on Sagg Road in Wainscott
Open to traffic
Sand Creek Bridge (Bryan County, Oklahoma)
Built 1921
Pony truss bridge over Sand Creek on 0716C
Open to traffic
Built 1921
Pony truss bridge over Sand Creek on 0716C
Open to traffic
Sans Bois Creek Bridge (Haskell County, Oklahoma)
Built 1921
Pony truss bridge over Sans Bois Creek on N4350
Open to traffic
Built 1921
Pony truss bridge over Sans Bois Creek on N4350
Open to traffic
Scajaquada Creek Bridge (Erie County, New York)
Built 1921
Stone arch bridge over Scajaquada Creek on NY 5 in Buffalo
Open to traffic
Built 1921
Stone arch bridge over Scajaquada Creek on NY 5 in Buffalo
Open to traffic
Schoonover Road Bridge (Adams County, Washington)
Built 1921; rehabilitated 1955
Concrete arch bridge over a dry wash on Schoonover Road
Open to traffic
Built 1921; rehabilitated 1955
Concrete arch bridge over a dry wash on Schoonover Road
Open to traffic
Schuylkill River Bridge (Schuylkill County, Pennsylvania)
Built 1921
Concrete arch bridge over Schuylkill River on PA 443 in Schuylkill Haven
Open to traffic
Built 1921
Concrete arch bridge over Schuylkill River on PA 443 in Schuylkill Haven
Open to traffic
Schwartz Road Bridge (Erie County, New York)
Built 1921; rehabilitated 1984
Concrete arch bridge over Cayuga Creek on Schwartz Road
Open to traffic
Built 1921; rehabilitated 1984
Concrete arch bridge over Cayuga Creek on Schwartz Road
Open to traffic
Seaton Bridge (Whitfield County, Georgia)Built 1921 by the Champion Bridge Co.
Steel stringer bridge over Mills Creek on Seaton Loop Road east of Cohutta, GA
Open to traffic
Second Mill Creek Bridge (Reynolds County, Missouri)Built 1921
Concrete slab bridge with ballusters on CR 360 (Old MO 21) east of Lesterville
Open to traffic with a 5 ton weight limit
Sees Creek CR 240 Bridge (Marion County, Missouri)
Built 1921
Pony truss bridge over Sees Creek on CR 240
Open to traffic
Built 1921
Pony truss bridge over Sees Creek on CR 240
Open to traffic
Shawsheen River Bridge (Essex County, Massachusetts)
Built 1921
Concrete arch bridge over Shawsheen River on MA 133 (Haverhill Street) in Andover
Open to traffic
Built 1921
Concrete arch bridge over Shawsheen River on MA 133 (Haverhill Street) in Andover
Open to traffic
Shinn Run Bridge (Harrison County, West Virginia)
Built 1921
Concrete arch bridge over Shinn Run on CR 6
Open to traffic
Built 1921
Concrete arch bridge over Shinn Run on CR 6
Open to traffic
Shipetaukin Creek Bridge (Mercer County, New Jersey)
Built 1921
Concrete arch bridge over Shipetaukin Creek on Carter Road (CR 569)
Open to traffic
Built 1921
Concrete arch bridge over Shipetaukin Creek on Carter Road (CR 569)
Open to traffic
Simmons Creek US 40 Bridge (Henry County, Indiana)
Built 1921; rehabilitated 1944
Concrete arch bridge over Simmons Creek on US 40
Open to traffic
Built 1921; rehabilitated 1944
Concrete arch bridge over Simmons Creek on US 40
Open to traffic
Skaneateles Creek Bridge (Onondaga County, New York)
Built 1921
Concrete arch bridge over Skaneateles Creek on NY 31C in Elbridge
Closed to all traffic
Built 1921
Concrete arch bridge over Skaneateles Creek on NY 31C in Elbridge
Closed to all traffic
Skunk Creek Bridge (Monona County, Iowa)
Built 1921
Concrete arch bridge over Skunk Creek on IA 141
Open to traffic
Built 1921
Concrete arch bridge over Skunk Creek on IA 141
Open to traffic
Skunk River Bridge (Hamilton County, Iowa)
Built 1921
Pony truss bridge over Skunk River on a local road
Open to traffic
Built 1921
Pony truss bridge over Skunk River on a local road
Open to traffic
Smoky Hill River Bridge (McPherson County, Kansas)
Built 1921; replaced 2005
Lost pony truss bridge over Smoky Hill River on Smoky Valley Road, 0.4 mi. south and 2.0 mi. west of Marquette
No longer exists
Built 1921; replaced 2005
Lost pony truss bridge over Smoky Hill River on Smoky Valley Road, 0.4 mi. south and 2.0 mi. west of Marquette
No longer exists
Snake River Bridge (Gooding County, Idaho)
Built 1921
Through truss bridge over Snake River on a county road
Open to traffic
Built 1921
Through truss bridge over Snake River on a county road
Open to traffic
Snake River Bridge (Pine County, Minnesota)
Built 1921
Pony truss bridge over Snake River on CR 112 in Grasston
Open to traffic
Built 1921
Pony truss bridge over Snake River on CR 112 in Grasston
Open to traffic
Snipe Creek Bridge (Jasper County, Iowa)
Built 1921
Pony truss bridge over Snipe Creek on a local road
Open to traffic
Built 1921
Pony truss bridge over Snipe Creek on a local road
Open to traffic
Snoqualmie River Bridge (King County, Washington)
Built 1921
Truss bridge over Snoqualmie River on 394 Place SE
Open to traffic
Built 1921
Truss bridge over Snoqualmie River on 394 Place SE
Open to traffic
Souhegan River Bridge (Hillsborough County, New Hampshire)
Built 1921; rehabilitated 1934
Stone arch bridge over Souhegan River on US 3 in Merrimack
Open to traffic
Built 1921; rehabilitated 1934
Stone arch bridge over Souhegan River on US 3 in Merrimack
Open to traffic
South Branch Humbug Creek Bridge (Stanton County, Nebraska)
Built 1921
Pony truss bridge over South Branch Humbug Creek on a county road, 4.7 mi. west and 2.1 mi. north of Pilger
Open to traffic
Built 1921
Pony truss bridge over South Branch Humbug Creek on a county road, 4.7 mi. west and 2.1 mi. north of Pilger
Open to traffic
South Paluxy River Bridge (Erath County, Texas)
Built 1921
Through truss bridge over South Paluxy River on FM 1188
Closed to all traffic
Built 1921
Through truss bridge over South Paluxy River on FM 1188
Closed to all traffic
South Side Avenue Bridge (Westchester County, New York)
Built 1921; rehabilitated 1968
Pony truss bridge over railroad tracks on South Side Avenue in Hastings-on-Hudson
Unknown status
Built 1921; rehabilitated 1968
Pony truss bridge over railroad tracks on South Side Avenue in Hastings-on-Hudson
Unknown status
South Yuba River Bridge (Nevada County, California)
Built 1921
Concrete arch bridge over South Yuba River on a pedestrian walkway
Built 1921
Concrete arch bridge over South Yuba River on a pedestrian walkway
Spring Street Bridge (Auglaize County, Ohio)
Built 1921 by the Roberts Supply Co.
Arch bridge on Spring Street over the Miami & Eric Canal in St. Marys
Open to traffic
Built 1921 by the Roberts Supply Co.
Arch bridge on Spring Street over the Miami & Eric Canal in St. Marys
Open to traffic
Spring Valley Branch Bridge (Walla Walla County, Washington)
Built 1921
Concrete arch bridge over Spring Valley Branch on WA 125
Open to traffic
Built 1921
Concrete arch bridge over Spring Valley Branch on WA 125
Open to traffic
Stony Creek Bridge (Shenandoah County, Virginia)
Built 1921
Concrete arch bridge over Stony Creek on VA 1419 in Edinburg
Open to traffic
Built 1921
Concrete arch bridge over Stony Creek on VA 1419 in Edinburg
Open to traffic
Sugar Creek Bridge (Bradford County, Pennsylvania)
Built 1921; rehabilitated 1952
Concrete arch bridge over Sugar Creek on TR 532
Open to traffic
Built 1921; rehabilitated 1952
Concrete arch bridge over Sugar Creek on TR 532
Open to traffic
Sugar Creek Bridge (Muscatine County, Iowa)
Built 1921
Through truss bridge over Sugar Creek on a local road
Closed to all traffic
Built 1921
Through truss bridge over Sugar Creek on a local road
Closed to all traffic
Sulphur Creek Bridge (Bryan County, Oklahoma)
Built 1921
Pony truss bridge over Sulphur Creek on E2090
Open to traffic
Built 1921
Pony truss bridge over Sulphur Creek on E2090
Open to traffic
Sunny Creek Lane Bridge (Marion County, Indiana)
Built 1921
Concrete arch bridge over Indian Creek on Sunny Creek Lane in Indianapolis
Open to traffic
Built 1921
Concrete arch bridge over Indian Creek on Sunny Creek Lane in Indianapolis
Open to traffic
Swatara Creek Bridge (Dauphin County, Pennsylvania)
Built 1921; rehabilitated 1978
Three-span concrete arch bridge over Swatara Creek on PA 2003 in Hummelstown
Open to traffic
Built 1921; rehabilitated 1978
Three-span concrete arch bridge over Swatara Creek on PA 2003 in Hummelstown
Open to traffic
Sycamore Canyon Creek Bridge (Santa Barbara County, California)
Built 1921
Stone arch bridge over Sycamore Canyon Creek on CA 192 in Santa Barbara
Open to traffic
Built 1921
Stone arch bridge over Sycamore Canyon Creek on CA 192 in Santa Barbara
Open to traffic
Ten Mile River Bridge (Providence County, Rhode Island)
Built 1921; rehabilitated 1931
Concrete arch bridge over Ten Mile River on US 1A in East Providence
Open to traffic
Built 1921; rehabilitated 1931
Concrete arch bridge over Ten Mile River on US 1A in East Providence
Open to traffic
Tevebaugh Creek Bridge (Marion County, West Virginia)
Built 1921
Concrete arch bridge over Tevebaugh Creek on CR 44
Open to traffic
Built 1921
Concrete arch bridge over Tevebaugh Creek on CR 44
Open to traffic
Thomas Road Bridge (Allen County, Ohio)
Built 1921; rehabilitated 1982
Pony truss bridge over Sugar Creek on TR 87 (Thomas Road)
Open to traffic
Built 1921; rehabilitated 1982
Pony truss bridge over Sugar Creek on TR 87 (Thomas Road)
Open to traffic
Thompson River 3rd Street Bridge (Grundy County, Missouri)Built 1921
Two-span through truss bridge over Thompson River on 3rd Street (Old MO 6) west of Trenton
Open to traffic
Thompson River Overflow 3rd Street Bridge (Grundy County, Missouri)
Built 1921
Three-span Baltimore through truss bridge over Thompson River Overflow on 3rd Street (Old MO 6) west of Trenton
Closed to all traffic
Built 1921
Three-span Baltimore through truss bridge over Thompson River Overflow on 3rd Street (Old MO 6) west of Trenton
Closed to all traffic
Tobyhanna Creek Bridge (Monroe County, Pennsylvania)
Built 1921
Stone arch bridge over Tobyhanna Creek on PA 4008
Open to traffic
Built 1921
Stone arch bridge over Tobyhanna Creek on PA 4008
Open to traffic
Tongue River Bridge (Pembina County, North Dakota)
Built 1921
Pony truss bridge over Tongue River on a county road, 6 mi. east and 1 mi. north of Bathgate in Pembina Township
Open to traffic
Built 1921
Pony truss bridge over Tongue River on a county road, 6 mi. east and 1 mi. north of Bathgate in Pembina Township
Open to traffic
Trout Brook Bridge (St. Lawrence County, New York)
Built 1921; rehabilitated 1950
Concrete arch bridge over Trout Brook on CR 35
Open to traffic
Built 1921; rehabilitated 1950
Concrete arch bridge over Trout Brook on CR 35
Open to traffic
Ulsterville Road Bridge (Ulster County, New York)
Built 1921; rehabilitated 1991
Pony truss bridge over Shawangunk Kill on Ulsterville Road in Pine Bush
Open to traffic
Built 1921; rehabilitated 1991
Pony truss bridge over Shawangunk Kill on Ulsterville Road in Pine Bush
Open to traffic
Unnamed Creek Bridge (Hughes County, Oklahoma)
Built 1921
Pony truss bridge over an unnamed creek on E1270
Open to traffic
Built 1921
Pony truss bridge over an unnamed creek on E1270
Open to traffic
Unnamed Creek Bridge (Hughes County, Oklahoma)
Built 1921
Arch bridge over an unnamed creek on N3920
Open to traffic
Built 1921
Arch bridge over an unnamed creek on N3920
Open to traffic
Unnamed Creek Bridge (Hamilton County, Iowa)
Built 1921
Pony truss bridge over an unnamed creek on a local road
Open to traffic
Built 1921
Pony truss bridge over an unnamed creek on a local road
Open to traffic
Unnamed Creek Bridge (Kingfisher County, Oklahoma)
Built 1921
Arch bridge over an unnamed creek on E0850
Open to traffic
Built 1921
Arch bridge over an unnamed creek on E0850
Open to traffic
Unnamed Creek Bridge (Scott County, Iowa)
Built 1921
Pony truss bridge over an unnamed creek on a local road
Open to traffic
Built 1921
Pony truss bridge over an unnamed creek on a local road
Open to traffic
Unnamed Creek Bridge (Canadian County, Oklahoma)
Built 1921
Through truss bridge over an unnamed creek on E0900
Open to traffic
Built 1921
Through truss bridge over an unnamed creek on E0900
Open to traffic
Unnamed Creek TR 929 Bridge (Columbiana County, Ohio)
Built 1921
Stone arch bridge over unnamed creek on TR 929
Open to traffic
Built 1921
Stone arch bridge over unnamed creek on TR 929
Open to traffic
Upper Run Bridge (Doddridge County, West Virginia)
Built 1921
Concrete arch bridge over Upper Run on CR 19/6
Open to traffic
Built 1921
Concrete arch bridge over Upper Run on CR 19/6
Open to traffic
Walnut Creek Bridge (Montgomery County, Iowa)
Built 1921
Through truss bridge over Walnut Creek on a local road
Open to traffic
Built 1921
Through truss bridge over Walnut Creek on a local road
Open to traffic
Washington Bridge (New Haven County, Connecticut)
Built 1921; rehabilitated 1990
Bascule bridge over Housatonic River on US 1 in Milford
Open to traffic
Built 1921; rehabilitated 1990
Bascule bridge over Housatonic River on US 1 in Milford
Open to traffic
West Beaver Creek Lincoln Highway Bridge (Greene County, Iowa)Built 1921
Concrete bridge over West Beaver Creek on a local road
Open to traffic
West Fork of Fish Creek Bridge (Wetzel County, West Virginia)
Built 1921
Concrete arch bridge over West Fork of Fish Creek on CR 250/9
Open to traffic
Built 1921
Concrete arch bridge over West Fork of Fish Creek on CR 250/9
Open to traffic
West Swan River Bridge (St. Louis County, Minnesota)
Built 1921
Pony truss bridge over West Swan River on CR 965
Open to traffic
Built 1921
Pony truss bridge over West Swan River on CR 965
Open to traffic
Westfield River Bridge (Hampshire County, Massachusetts)
Built 1921
Concrete arch bridge over Westfield River on MA 112 (Worthington Road) in Huntington
Open to traffic
Built 1921
Concrete arch bridge over Westfield River on MA 112 (Worthington Road) in Huntington
Open to traffic
Whitebridge Road Bridge (Morris County, New Jersey)
Built 1921
Pony truss bridge over Passaic River on Whitebridge Road
Open to traffic
Built 1921
Pony truss bridge over Passaic River on Whitebridge Road
Open to traffic
Whittier Boulevard over the Rio Hondo in Montebello (Los Angeles County, California)Built 1921; rehabilitated 1927
Deck truss bridge over Rio Hondo on Whittier Boulevard (CA 72) in Montebello
Open to traffic
Wilby Creek Bridge (Butler County, Missouri)Built 1921
Concrete slab bridge over Wilby Creek on Route O (formerly US 67)
Open to traffic
Willowgrove Road Bridge (Lawrence County, Pennsylvania)
Built 1921
Concrete through arch bridge over Hickory Run on Willowgrove Road in New Castle
Closed to all traffic
Built 1921
Concrete through arch bridge over Hickory Run on Willowgrove Road in New Castle
Closed to all traffic
Wohler Road Bridge (Sonoma County, California)
Built 1921
Through truss bridge over Russian River on Wohler Road
Open to traffic
Built 1921
Through truss bridge over Russian River on Wohler Road
Open to traffic
Wurts Street Bridge (Ulster County, New York)
Built 1921; rehabilitated 1974
Suspension bridge over Rondout Creek on Wurts Street in Kingston
Open to traffic
Built 1921; rehabilitated 1974
Suspension bridge over Rondout Creek on Wurts Street in Kingston
Open to traffic
Yellowstone River Bridge (Park County, Montana)
Built 1921; rehabilitated 1958
Concrete arch bridge over Yellowstone River on MT 540
Open to traffic
Built 1921; rehabilitated 1958
Concrete arch bridge over Yellowstone River on MT 540
Open to traffic
Youngs Bay Bridge (Clatsop County, Oregon)
Built 1921
Bascule bridge over Youngs Bay on HWY 105
Open to traffic
Built 1921
Bascule bridge over Youngs Bay on HWY 105
Open to traffic