14th Avenue South Bridge (King County, Washington)
Built 1931
Bascule bridge over Duwamish River on 14th Avenue South in Seattle
Open to traffic

18th Street Bridge (Black Hawk County, Iowa)
Built 1931; rehabilitated 1980; replaced 2003
Lost through truss bridge over Cedar River on W. 18th Street in Waterloo
No longer exists

233rd Street Bridge (Bronx County, New York)
Built 1931
Rainbow arch bridge over Bronx River Parkway on E. 233rd Street in New York
Open to traffic

28th Street Bridge (Allegheny County, Pennsylvania)
Built 1931; rehabilitated 1974
Through truss bridge over Conrail tracks on 28th Street in Pittsburgh
Open to traffic

Agate Creek Bridge (Elbert County, Colorado)
Built 1931
Wooden bridge over Agate Creek on US 40
Open to traffic

Androscoggin River Bridge (Cumberland County, Maine)
Built 1931; rehabilitated 1985
Through truss bridge over Androscoggin River on US 201 in Brunswick
Open to traffic

Angeles Crest Highway over Slide Canyon (Los Angeles County, California)
Built 1931
Concrete arch bridge over Slide Canyon on CA 2 in Angeles National Forrest
Open to traffic

Anthony Wayne Bridge (Lucas County, Ohio)
Built 1931 by the McClintic-Marshall Co.; rehabilitated 1961
Suspension bridge over Maumee River on OH 2 in Toledo
Open to traffic

Ash Creek Bridge (Muskogee County, Oklahoma)
Built 1931
Through truss bridge over Ash Creek on US 64
Open to traffic

Asheville Highway Bridge (Knox County, Tennessee)
Built 1931
Through truss bridge over Holston River on U.S. 11-E, U.S. 25-W (State Highway 9)
DEMOLISHED, replaced by a concrete steel I-Beam bridge

Ashtabula River OH 193 Bridge (Ashtabula County, Ohio)
Built 1931 by C.P. Smith and D.H. Overman
Arch bridge over Ashtabula River on OH 193
Open to traffic

Atlantic Blvd over the Los Angeles River (Los Angeles County, California)
Built 1931
Concrete arch bridge over Los Angeles River on Atlantic Blvd. in Vernon
Open to traffic

Au Sable River Bridge (Iosco County, Michigan)
Built 1931
Truss bridge over Au Sable River on M-65
Open to traffic

Austins Run Bridge (Buckingham County, Virginia)
Built 1931
Concrete arch bridge over Austins Run on VA 60
Unknown status

Back River Bridge (Lincoln County, Maine)
Built 1931; rehabilitated 1983
Swing bridge over Back River on SA 5 in Boothbay
Open to traffic

Baltimore Street Bridge (Baltimore, Maryland)
Built 1931
Concrete arch bridge over Gwynns Falls on Baltimore Street in Baltimore
Open to traffic

Bannister Road Bridge (Jackson County, Missouri)
Built 1931; replaced ca. 2004
Lost pony truss bridge over Little Blue River on Bannister Road in Kansas City
Replaced by a new bridge

Bayonne Bridge (Hudson County, New Jersey)
Built 1931
Steel through arch bridge over Kill Van Kull between Bayonne and Staten Island
Toll bridge open to traffic

Bayou Manchac LA 73 Bridge (East Baton Rouge Parish, Louisiana)
Built 1931
Pony truss bridge over Bayou Manchac on LA 73
Open to traffic

Bayville Bridge (Nassau County, New York)
Built 1931 by the Phoenix Bridge Co.
Bascule bridge over Mill Neck Creek on West Shore Road at Bayville
Open to traffic

Bear River Bridge (Franklin County, Idaho)
Built 1931
Through truss bridge over Bear River on a county road
Open to traffic

Beaver Creek Bridge (Shelby County, Tennessee)
Built 1931
Pony truss bridge over West Beaver Creek on NFA C010
Open to traffic

Beaver Creek Bridge (Valley County, Montana)
Built 1931
Through truss bridge over Beaver Creek on CR 416
Open to traffic

Beaver Creek Bridge (Washington County, Maryland)
Built 1931; rehabilitated 1949
Stone arch bridge over Beaver Creek on US 40 ALT
Open to traffic

Beckleysvlle Road Bridge (Baltimore County, Maryland)
Built 1931; rehabilitated 1986
Through truss bridge over Pretty Boy Resevoir on Beckleysvlle Road
Open to traffic

Belknap Mountain Road Bridge (Belknap County, New Hampshire)
Built 1931; rehabilitated 1983
Wooden bridge over Gunstock Brook on Belknap Mountain Road in Gilford
Open to traffic

Benbow Bridge (Humboldt County, California)
Stone road bridge that was built in 1931 as part of the Benbow Inn Resort. Bypassed by a Hwy 5 freeway bridge. Still used but a dead end.
Bridge over Eel River
Open to traffic

Bennett Road Bridge (Ulster County, New York)
Built 1931; rehabilitated 1993
Pony truss bridge over Rondout Creek on Bennett Road
Open to traffic

Berlin Court Ditch US 6 Bridge (Elkhart County, Indiana)
Built 1931; rehabilitated 1986
Concrete arch bridge over Berlin Court Ditch on US 6 in Nappanee
Open to traffic

Berry Creek Bridge (Williamson County, Texas)
Built 1931
Pony truss bridge over Berry Creek on CR 219
Closed to all traffic

Big Blackfoot River Bridge (Powell County, Montana)
Built 1931
Pony truss bridge over Big Blackfoot River on CR 104
Open to traffic

Big Brook Bridge (Oneida County, New York)
Built 1931; rehabilitated 1991
Pony truss bridge over Big Brook on NY 274
Open to traffic

Big Creek Bridge (Lane County, Oregon)
Built 1931
Rainbow arch bridge over Big Creek on US 101
Open to traffic

Big Piney Creek Bridge (Johnson County, Arkansas)
Built 1931
Through truss bridge over Big Piney Creek on AR 123 near Fort Douglas
Open to one-lane traffic with a weight limit

Big Walnut Creek US 231 Bridge (Putnam County, Indiana)
Built 1931; rehabilitated 1969
Concrete arch bridge over Big Walnut Creek on US 231
Open to traffic

Birch Creek IN 59 Bridge (Clay County, Indiana)
Built 1931; rehabilitated 1960
Concrete arch bridge over Birch Creek on IN 59
Open to traffic

Black Bear Creek Bridge (Noble County, Oklahoma)
Built 1901
Through truss bridge over Black Bear Creek on US 77
Open to traffic

Black Creek Bridge (Monroe County, New York)
Built 1931; rehabilitated 1963
Pony truss bridge over Black Creek on NY 386
Open to traffic

Black Hawk Bridge (Allamakee County, Iowa)
Built 1931; rehabilitated 1955
Cantilevered through truss bridge over the Mississippi River on IA 9 at Lansing
Open to two-lane traffic

Black's Fork River Bridge (Uinta County, Wyoming)
Built 1931
Truss bridge over Black's Fork River on CN19-233
Open to traffic

Black's Fork River Bridge (Uinta County, Wyoming)
Built 1931
Truss bridge over Black's Fork River on CN19-233
Open to traffic

Bonds Creek Bridge (Ritchie County, West Virginia)
Built 1931
Concrete arch bridge over Bonds Creek on CR 50/34
Open to traffic

Borden Road Bridge (Erie County, New York)
Built 1931; rehabilitated 1976
Concrete arch bridge over Cayuga Creek on Borden Road in Cheektowaga
Open to traffic

Borden Road Bridge (Erie County, New York)
Built 1931; rehabilitated 2002
Concrete arch bridge over Buffalo Creek on Borden Road in West Seneca
Open to traffic

Boston Bridge (Allegheny County, Pennsylvania)
Built 1931; rehabilitated 1989
Through truss bridge over Youghiogheny River on Walnut Street
Open to traffic

Boulder Creek Bridge (Santa Cruz County, California)
Built 1931
Concrete arch bridge over Boulder Creek on CA 9 in Boulder Creek
Open to traffic

Boulder River Bridge (Sweet Grass County, Montana)
Built 1931; rehabilitated 1991
Pony truss bridge over Boulder River on CR 102
Open to traffic

Boulder River Bridge (Sweet Grass County, Montana)
Built 1931; rehabilitated 1991
Pony truss bridge over Boulder River on CR 102
Open to traffic

Boyer River Bridge (Sac County, Iowa)
Built 1931
Pony truss bridge over Boyer River on Local)
Open to traffic

Bradley Road Bridge (Monterey County, California)
Built 1931; rehabilitated 1954
Deck truss bridge over Salinas River on Bradley Road
Open to traffic

Branch Chappaqua Brook Bridge (Westchester County, New York)
Built 1931
Concrete arch bridge over a branch of Chappaqua Brook on Saw Mill River Parkway in Chappaqua
Open to traffic

Branch Maquoketa River Bridge (Dubuque County, Iowa)
Built 1931
Concrete arch bridge over a branch of Maquoketa River on US 52/IA 3
Open to traffic

Branch Mill Creek US 42 Bridge (Hamilton County, Ohio)
Built 1931; rehabilitated 1931
Arch bridge over a branch of Mill Creek on US 42 (Reading Road) in Reading
Open to traffic

Brecksville-Northfield High Level Bridge (Cuyahoga County, Ohio)
Built 1930-31 under the supervision of A.M. Felgate and W.S. Hindman; rehabilitated 1989
Five-span open-spandrel arch bridge over the Cuyahoga River on OH 82
Open to two-lane traffic

Broadway Bridge (Sedgwick County, Kansas)
Built 1931; rehabilitated 1996
Eight-span rainbow arch bridge over the Arkansas River on S. Broadway (Southbound) in Wichita
Open to two lanes of southbound traffic

Browns Bridge (Palo Alto County, Iowa)
Built 1931, replacing a 1919 trestle bridge
Pony truss bridge over Old Channel Des Moines River on 490th Street west of West Bend
Open to traffic

Buffalo Creek Bridge (Logan County, West Virginia)
Built 1931
Pony truss bridge over Buffalo Creek on WV 10 in Man
Open to traffic

Buffalo Creek Bridge (Harper County, Oklahoma)
Built 1931
Pony truss bridge over Buffalo Creek on US 64
Open to traffic

Butlers Run IN 1 Bridge (Franklin County, Indiana)
Built 1931; rehabilitated 1961
Concrete arch bridge over Butlers Run on IN 1
Open to traffic

Buttonwood Street Bridge (Berks County, Pennsylvania)
Built 1931; rehabilitated 1972
Open-spandrel arch bridge over the Schuylkill River on Buttonwood Street in Reading
Open to traffic

Cape Creek Bridge (Lane County, Oregon)
Built 1931. It was designed by Conde McCullough and opened in 1932.
Concrete arch bridge over Cape Creek on US 101
Open to traffic

Cape Creek Tunnel (Lane County, Oregon)
Built 1931
Tunnel on US 101
Open to traffic

Capital Blvd. Bridge (Ada County, Idaho)
Built 1931; rehabilitated 1992
Concrete arch bridge over Boise River on Capital Blvd. in Boise
Open to traffic

Caroga Creek Bridge (Montgomery County, New York)
Built 1931; rehabilitated 2002
Rainbow arch bridge over Caroga Creek on CR 48 (Wagners Hollow Road)
Open to traffic

Case Road Bridge (Onondaga County, New York)
Built 1931; rehabilitated 1961
Wooden bridge over Skaneateles Creek on Case Road
Open to traffic

Castor River Route K Bridge (Stoddard County, Missouri)
Built 1931
Wooden bridge over Castor River on Route K
Open to one-lane traffic

Catfish Creek Bridge (Oswego County, New York)
Built 1931; rehabilitated 1952
Concrete arch bridge over Catfish Creek on CR 64 (Hurlbut Road)
Open to traffic

Cattaraugus Creek Bridge (Chautauqua County, New York)
Built 1931; rehabilitated 1979
Through truss bridge over Cattaraugus Creek on NY 5
Open to traffic

Cedar Creek Bridge (Polk County, Georgia)
Built 1931; rehabilitated 1960
Concrete arch bridge over Cedar Creek on Old GA 6 in Cedartown
Open to traffic

Center Street Bridge (Marshall County, Indiana)
Built 1931; rehabilitated 1969
Concrete arch bridge over Armey Ditch on Center Street in Bremen
Open to traffic

Chehalis River Bridge (Lewis County, Washington)
Built 1931
Concrete arch bridge over Chehalis River on WA 6 in Pe Ell
Open to traffic

Cherry River Bridge (Nicholas County, West Virginia)
Built 1931
Truss bridge over Cherry River on WV 20
Open to traffic

Chicopee River Bridge (Hampden County, Massachusetts)
Built 1931
Concrete arch bridge over Chicopee River on MA 116 (Springfield Street) in Chicopee
Open to traffic

Chippewa Road Bridge (Summit County, Ohio)
Built 1931 by A.M. Felgate and W.S. Hindman; rehabilitated 1989
Open-spandrel arch bridge on OH 82 (Chippewa Road) in Brecksville
Open to traffic

Cimarron River Bridge (Logan County, Oklahoma)
Built 1931; replaced 2005
Lost pony truss bridge over Cimarron River on OK 33
No longer exists

Clarendon Bridge (Monroe County, Arkansas)
Built 1931
Cantilevered through truss bridge over White River on US 79 in Clarendon
Open to traffic

Clark Creek Bridge (Geary County, Kansas)
Built 1931; replaced 2000
Lost pony truss bridge over Clark Creek on K-57
No longer exists

Clark Memorial Bridge (McCracken County, Kentucky)
Built 1931
Three-span through truss bridge over Tennessee River on US 60 in Ledbetter
Open to traffic

Clinch River US 70 Bridge (Roane County, Tennessee)
Built 1929-31; demolished 2006
Lost four-span through truss bridge over Clinch River on US 70/TN 1 in Harriman
No longer exists

Cloud Creek Bridge (Muskogee County, Oklahoma)
Built 1931; replaced 2005
Lost pony truss bridge over Cloud Creek on US 62
No longer exists

Cloud Creek Bridge (Muskogee County, Oklahoma)
Built 1931; replaced 2005
Lost pony truss bridge over Cloud Creek on US 62
No longer exists

CO 120 Viaduct (Fremont County, Colorado)
Built 1931
Tee beam bridge over the Union Pacific Railroad on CO 120
Open to traffic

Cohansey River Bridge (Cumberland County, New Jersey)
Built 1931; rehabilitated 1970
Wooden bridge over Cohansey River on CR 733 (Beal's Mill Road)
Open to traffic

Cohocton River Bridge (Steuben County, New York)
Built 1931; rehabilitated 1986
Through truss bridge over Cohocton River on NY 415
Open to traffic

Columbia Bridge (Caldwell Parish, Louisiana)
Built 1931; Replaced 2007
Vertical lift bridge over Ouachita River on US 165 at Columbia
Lost 2007 by implodsion

Conway Scenic Railroad Bridge (Carroll County, New Hampshire)
Built 1931
Wooden bridge over River Road on Conway Scenic Railroad in Conway
Open to traffic

Coon Bridges Road Bridge (Jefferson County, New York)
Built 1931; rehabilitated 1997
Pony truss bridge over Indian River on Coon Bridges Road
Open to traffic

Coosa River Bridge (Elmore County, Alabama)
Built 1931
Rainbow arch bridge over Coosa River on AL 111 in Wetumpka
Open to traffic

Cottonwood Creek Bridge (Carter County, Montana)
Built 1931
Pony truss bridge over Cottonwood Creek on CR 090
Open to traffic

CR 33 Bridge (Wabasha County, Minnesota)
Built 1931
Concrete arch bridge over an unnamed creek on CR 33 in Wabasha
Open to traffic

CR 62 Bridge (Union County, Ohio)
Built 1931 by the Brookville Bridge Co.; rehabilitated 1998
Pony truss bridge on CR 62
Open to traffic

CR 84 Bridge (Union County, Ohio)
Built 1931 by the Brookville Bridge Co.; rehabilitated 1997
Pony truss bridge on CR 84
Open to traffic

Crawford Avenue Bridge (Cook County, Illinois)
Built 1931; rehabilitated 1971
Through truss bridge over Cal Sag Channel on Crawford Avenue in Chicago
Open to traffic

Creek Bridge (McHenry County, North Dakota)
Built 1931; rehabilitated 1956
Wooden bridge over an unnamed creek on ND 14
Open to traffic

Cripe Run US 421 Bridge (Clinton County, Indiana)
Built 1931
Concrete arch bridge over Cripe Run on US 421
Open to traffic

Crooked Creek Bridge (Washington County, Iowa)
Built 1931; replaced 2000
Lost pony truss bridge over Crooked Creek on IA 114
No longer exists

Crow River Bridge (Hennepin County, Minnesota)
Built 1931
Pony truss bridge over Crow River on CR 116 in St. Michael
Open to traffic

Cummings Creek Bridge (Lane County, Oregon)
Built 1931
Concrete arch bridge over Cummings Creek on US 101
Open to traffic

Curtis Creek Bridge (Steuben County, New York)
Built 1931; rehabilitated 1990
Wooden bridge over Curtis Creek on CR 4
Open to traffic

Cut Bank Creek Bridge (Bottineau County, North Dakota)
Built 1931
Wooden bridge over Cut Bank Creek on a county road, 6 mi. west and 1 mi. south of Maxbass in Mount Rose Township
Open to traffic