Built 1977

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Back Creek Bridge (Monroe County, West Virginia)
Built 1977
Metal arch bridge over Back Creek on CR 23/5
Open to traffic

Bay Road Bridge (Pope County, Illinois)
Built or relocated here in 1977
Pony truss bridge over Bay Creek on Bay Road (TR 137), 2.5 mi. west of Homberg
Open to two-lane traffic

Bayou du Large LA 315 Bridge (Terrebonne Parish, Louisiana)
Built 1977
Bascule bridge over Bayou du Large on LA 315 in Houma
Open to traffic

Benton MacKaye Trail Toccoa River Bridge (Fannin County, Georgia)
Built 1977
Wire suspension bridge over Toccoa River on Benton MacKaye Train
Open to pedestrians

Big Mac Bridge (Hamilton County, Ohio)
Constructed started 1971; opened to limited traffic 1977; dedicated 1981; entire I-471 project completed 1985
Pair of tied-arch bridges over the Ohio River on I-471 in Cincinnati
Open to eight total lanes of traffic

Big Spring Bridge (Carter County, Missouri)
Built 1977, replacing an earlier wooden bridge
Wooden bridge over Spring Branch on MO 103 at Big Spring Park
Open to traffic

Blind River Bridge (St. James Parish, Louisiana)
Built 1977
Slab bridge over Blind River on US-61 NB
Open to traffic

Bunker Hill Road Bridge (Jones County, Iowa)
Built 1977
Pony truss bridge over Bears Creek on Bunker Hill Road
Replaced by gravel and pipes

Caddo Creek Bridge (Carter County, Oklahoma)
Built 1977
Pony truss bridge over Caddo Creek on N3190
Open to traffic

Carroll C. Cropper Bridge (Dearborn County, Indiana)
Built 1977
Steel through arch bridge over Ohio River on I-275
Open to traffic

CR 4 Bridge No. 1 (McKinley County, New Mexico)
Built 1977
Pony truss bridge over Big House Canyon on CR 4
Open to traffic

Crooked Creek Bridge (Cass County, Iowa)
Built 1977
Pony truss bridge over Crooked Creek on Crooked Creek Road
Open to traffic

East Nodaway River Bridge (Adams County, Iowa)
Built 1977
Pony truss bridge over East Nodaway River on 190th Street
Open to traffic

East River Bridge (Taylor County, Iowa)
Built 1977
Pony truss bridge over East River on 160th Street
Open to traffic

Hackberry Bridge (Cameron Parish, Louisiana)
Built 1977
Swing bridge over Kelso Bayou on LA 27 at Hackberry
Open to traffic

Harms Road Bridge (Klickitat County, Washington)
Built 1977, Replaced 2009
Lost pony truss bridge over Swale Creek on Harms Road
Replaced by a pre-cast girder bridge in 2009

Intracoastal Waterway LA 27 Bridge (Calcasieu Parish, Louisiana)
Built 1977
Vertical lift bridge over the Intracoastal Waterway on LA 27
Open to traffic

Jennings Randolph Memorial Bridge (Hancock County, West Virginia)
Built 1977
Through truss bridge over the Ohio River on US 30
Open to traffic

Meridian Bridge (Sutter County, California)
Built 1977
Swing bridge over Sacramento Riv(Meridian) on CA 20
Open to traffic

Middle Lick Creek CR 472 Bridge (Audrain County, Missouri)
Built 1977; replaced 2005
Lost pony truss bridge over Middle Lick Creek on CR 472
No longer exists

New River Gorge Bridge (Fayette County, West Virginia)
Opened on October 22, 1977
Massive steel arch bridge over New River on US 19 east of Fayette
Open to traffic

Nishnabotna River Bridge (Audubon County, Iowa)
Built 1977
Pony truss bridge over Nishnabotna River on Lark Avenue
Open to traffic

North Fork Salt River Bridge (Monroe County, Missouri)
Built 1977
Steel stringer bridge over North Fork Salt River on Mo 107
Open to traffic

Nose Rock Wash Bridge (McKinley County, New Mexico)
Built 1977
Pony truss bridge over Nose Rock Wash on CR 43
Open to traffic

Odd Fellows Park Road (Sonoma County, California)
Built 1977; rehabilitated 2008
Steel stringer bridge over Russian River on Odd Fellows Park Road
Open to traffic

Paradise Creek Bridge (Crawford County, Iowa)
Built 1977; rehabilitated 1993
Pony truss bridge over Paradise Creek on N Avenue
Open to traffic

Pleasant Hill Rd Kishwaukee River Bridge (De Kalb County, Illinois)
Built 1977
Beam bridge over S Br Kishwaukee Rv on Pleasant Hill Road
Open to traffic

Rose Creek Bridge (Cass County, Iowa)
Built 1977
Pony truss bridge over Rose Creek on 620th Street
Open to traffic

Rulo Railroad Bridge (Richardson County, Nebraska)
Built 1887; truss sections replaced with new trusses in 1977 but retaining original piers
Warren through truss bridge over Missouri River on BNSF Railroad in Rulo
Open to traffic

Second Clark Lane Bridge (Union County, Illinois)
Built 1977
Wooden deck bridge over a branch of Dutch Creek on Clark Lane (TR 72)
Open to one-lane traffic with a 7 ton weight limit

South Branch Rock Creek Bridge (Somerset County, Maryland)
Built 1977
Wooden bridge over South Branch Rock Creek on MD 363
Open to traffic

South Fork Salt River Bridge (Monroe County, Missouri)
Built 1977
Steel stringer bridge over South Fork Salt River on Mo 107
Open to traffic

St. Marys Bridge (Pleasants County, West Virginia)
Cantilevered through truss bridge over Ohio River on WV 807 at St. Marys
Open to traffic

Summer Crossing Bridge (Sonoma County, California)
Built 1977, seasonal, removed in winter.
Steel stringer bridge over Russian River on Vacation Beach Road
Open to traffic

Tolt River Bridge (King County, Washington)
Built 1977
Through truss bridge over Tolt River on WA 203 in Carnation
Open to traffic

Tony Creek Bridge (Comanche County, Oklahoma)
Built 1977
Pony truss bridge over Tony Creek on Tony Creek Rd. (N2620 Rd.)
Open to traffic

Troublesome Creek Bridge (Cass County, Iowa)
Built 1977
Pony truss bridge over Troublesome Creek on 640th Creek
Open to traffic

Union Pacific 84th Street Bridge (Douglas County, Nebraska)
Originally built as a "tunnel", replaced c. 1980 with bridge.
Bridge over 84th Street on Union Pacific Railroad
Open to traffic

Wagner Road Bridge2 (Ogle County, Illinois)
Built 1977
Beam bridge over Branch Mud Creek on Wagner Road
Open to traffic

West Nodaway River Bridge (Cass County, Iowa)
Built 1977
Pony truss bridge over West Nodaway River on 710th Avenue
Open to traffic