Atchafalaya River US 190 Bridge (St. Landry Parish, Louisiana)
Built 1973
Through truss bridge over Atchafalaya River on US 190 at Krotz Springs in Krotz Springs
Open to traffic

Cache River Bridge (Jackson County, Arkansas)
Built 1973
Wooden bridge over Cache River on CR 51
Open to traffic

Clark Lane Bridge (Union County, Illinois)
Built 1973; rehabilitated 1986; replaced 2005
Lost wooden deck bridge over Dutch Creek on Clark Lane (TR 72), 1 mi. southwest of Jonesboro
Replaced by modern bridge

Cliff Avenue Bridge (Minnehaha County, South Dakota)
Built 1973
Bridge over Big Sioux Rv on Cliff Avenue S of E 12th Street in Sioux Falls
Open to traffic

Cowlitz River Bridge (Cowlitz County, Washington)
Built 1973
Through truss bridge over Cowlitz River on WA 432 in Kelso
Open to traffic

East Biscayne Bay Bridge (Miami-Dade County, Florida)
Built 1973
Pair of bascule bridges over East Biscayne Bay on FL 934 in Miami Beach
Open to traffic

Elkhorn Creek Bridge (Audubon County, Iowa)
Built 1973
Pony truss bridge over Elkhorn Creek on a local road
Open to traffic

Fox River Bridge (Brown County, Wisconsin)
Built 1973
Bascule bridge over Fox River on Mason Street (WI 54) in Green Bay
Open to traffic

Fox River Bridge (Winnebago County, Wisconsin)
Built 1973
Bascule bridge over Fox River on US 45 (S. Main Street) in Oshkosh
Open to traffic

Fremont Bridge (Multnomah County, Oregon)
Built 1973
Steel through arch bridge over Willamette River on I-405 in Portland
Open to traffic

Goose Creek Bridge (Lawrence County, Indiana)
Built 1973; rehabilitated 1996
Arch bridge over Goose Creek on CR 400 West
Open to traffic

Holly Hills Drive Bridge (St. Louis, Missouri)
Built 1973
Modern steel arch bridge over the railroad on Holly Hills Drive at Carondelet Park in St. Louis
Open to traffic

Intracoastal Waterway Bridge (Palm Beach County, Florida)
Built 1973
Pair of bascule bridge over Intracoastal Waterway on FL 802 (Lake Avenue) in Lake Worth
Open to traffic

J. Fred Patton Garrison Bridge (Sebastian County, Arkansas)
Built 1973
Girder bridge over Arkansas River & Arkansas-Missouri RR on US 64
Open to traffic

Menominee River Bridge (Marinette County, Wisconsin)
Built 1973
Bascule bridge over Menominee River on Ogden Street in Marinette
Open to traffic

Mississippi River I-40 Bridge (Shelby County, Tennessee)
Built 1973
Two-span steel through arch bridge over the Mississippi River on I-40 at Memphis
Open to traffic

Paducah Bridge (McCracken County, Kentucky)
Built 1973
Two-span tied-arch bridge on Interstate 24 over the Ohio River between Paducah, KY, and Metropolis, IL
Open to four lanes of traffic

Petit Caillou Bayou Bridge (Terrebonne Parish, Louisiana)
Built 1973
Vertical lift bridge over Petit Caillou Bayou on a local road
Open to traffic

Plum Island Turnpike Bridge (Essex County, Massachusetts)
Built 1973
Bascule bridge over Plum Island River on Plum Island Turnpike in Newbury
Open to traffic

Rum River Bridge at CSAH 16 (Mille Lacs County, Minnesota)
Built 1973
Timber stringer bridge over Rum River on Csah 16
Open to traffic

Stoddard County Road 772 Bridge No. 2 (Stoddard County, Missouri)
Built 1973
Wooden deck bridge over a drainage ditch on CR 772
Open to traffic

Unnamed Creek Bridge (Fayette County, Iowa)
Built 1973
Pony truss bridge over an unnamed creek on a local road
Open to traffic

Unnamed Creek Bridge (Monona County, Iowa)
Built 1973
Pony truss bridge over an unnamed creek on a local road
Open to traffic

Vicksburg I-20 Bridge (Warren County, Mississippi)
Built 1973
Cantilevered through truss over the Mississippi River on I-20 at Vicksburg
Open to traffic

Wallace Tunnel (Mobile County, Alabama)
Built 1973
Tunnel under Mobile River on I-10 in Mobile
Open to traffic

West Nodaway River Bridge (Cass County, Iowa)
Built 1973
Pony truss bridge over West Nodaway River on a local road
Open to traffic