Built during 1970s
11th Street Viaduct (Minnehaha County, South Dakota)Built 1971; rehabilitated 1986
Steel stringer bridge over 3rd Ave, Big Sioux R & RR on 11th Street in Sioux Falls
Open to traffic
Ackerman Ditch CR 342 Bridge (Butler County, Missouri)Built 1976
Wooden bridge over Ackerman Ditch on CR 342
Open to one-lane traffic
Allen's Bridge (Greene County, Tennessee)Covered Bridge destroyed by flood 1901, Iron Truss Bridge demolished 1976
Concrete deck girder bridge over Nolichucky (Nolachucky) River
Open to traffic
Auburn-Forest Hill Bridge (Placer County, California)Built 1972
Deck truss bridge over North Fork American River on Auburn-Forest Hill Road in North Auburn
Open to traffic
B&O Overpass (St. Clair County, Illinois)Built 1976, replacing an earlier railroad overpass.
Pony/through plate girder bridge over Scott-Troy Road on B&O Rr
Open to traffic
Barton Bridge (Clackamas County, Oregon)Built 1970
Steel through arch bridge over Clackamas River on Bakers Ferry Road
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
Bear Creek Bridge (Searcy County, Arkansas)Built 1971
Wooden bridge over Bear Creek on CR 278
Open to one-lane traffic
Big Creek Ditch AR 349 Bridge (Craighead County, Arkansas)Built 1971; replaced 2006
Lost pony truss bridge over Big Creek Ditch on AR 349
Replaced by new bridge
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
Boone Pond Ditch Bridge (Stoddard County, Missouri)Built 1971
Wooden deck bridge over Boone Pond Ditch on CR 250
Open to one-lane traffic
Cairo I-57 Bridge (Alexander County, Illinois)Built 1978
Steel through arch bridge carrying I-57 over the Mississippi River at Cairo
Open to four lanes of traffic
Campus Drive Bridge (Racine County, Wisconsin)Built 1970
Concrete arch bridge over Wind Point Creek on Campus Drive in Wind Point
Open to traffic
Cane Creek CR 408 Bridge (Butler County, Missouri)Built 1972
Wooden deck bridge over Cane Creek on CR 408 just north of CR 410
Open to one-lane traffic
Cape County Road 274 Bridge (Cape Girardeau County, Missouri)Built 1978
Two-span stringer bridge with wooden deck over a drainage ditch on CR 274 at the Cape-Stoddard county line
Replaced by a new bridge
Caruthersville Bridge (Pemiscot County, Missouri)Built 1976; rehabilitated 1987
Continuous through truss over the Mississippi River on I-155, southeast of Caruthersville
Open to four lanes of traffic
Cedar Creek Bridge Route M (Washington County, Missouri)Built 1972
Steel stringer bridge over Cedar Creek on Route M
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
Cox Bridge (Jackson County, Minnesota)Built 1979. Previous bridge was a 6-panel Pratt through truss bridge with A-frame portal bracings and 45° heel strut bracings. Built in 1900
Steel stringer bridge over Des Moines River on Twp 131
Open to traffic
Daniel Webster Hoan Memorial Bridge (Milwaukee County, Wisconsin)Built 1974, Approach Span Failure Repaired 2001
Pair of steel through arch bridges over Milwaukee River on I-794 in Milwaukee
Open to traffic
Eight Mile Creek Bridge (Butler County, Kansas)Built 1974
Pony truss bridge over Eight Mile Creek, 1.8 mi. west and 2.0 mi. south of Douglass
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
Front Street Bridge (Freeborn County, Minnesota)Built 1976 as part of the Front Street Development Project
Stringer bridge over Shell Rock River on Front Street in Albert Lea
Open to traffic
Glen Carbon Covered Bridge (Madison County, Illinois)Built 1976, replacing an original 1934 covered bridge. Rebuit in 2007.
Modern covered bridge over Judy Branch on Main Street in Glen Carbon. Replaced a 1934 covered bridge that had a lower clearence. Rebuit in 2007 to be higher and wider than the previous one.
Rebuilt in 2007
Highland Avenue Bridge (Campbell County, Kentucky)Built 1977
Steel arch bridge over I-471 on Highland Avenue in Fort Thomas
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
Illinois River I-474 Bridge (Peoria County, Illinois)Built 1975
Pair of cantilevered through truss bridges over the Illinois River on I-474 south of Peoria in Bartonville
Open to four lanes of traffic
Leeville Bridge (Lafourche Parish, Louisiana)Built 1970
Vertical lift bridge over Bayou Lafourche on LA 1 at Leeville
Open to traffic
Lilleberg Bridge (Jackson County, Minnesota)Built 1976. Previous span was 8-panel pin-connected Pratt through truss bridge with A-frame portals. That was built in 1911 by Central States Bridge Co. of Indianapolis
Stringer bridge over Des Moines River on Csah 16
Open to traffic
Meridian Bridge (Sutter County, California)Built 1977
Swing bridge over Sacramento Riv(Meridian) on CA 20
Open to traffic
Michigan Street Bridge (Milwaukee County, Wisconsin)Built 1978
Vertical lift bridge over Milwaukee River on Michigan Street in Milwaukee
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
N. 50th Street Menomonee River Bridge (Milwaukee County, Wisconsin)Built 1976
Pony truss bridge over Menomonee River on N. 50th Street in Milwaukee
FOUND! This elusive bridge is well hidden but extant behind private property.
New River Gorge Bridge (Fayette County, West Virginia)Opened Oct. 22, 1977
Massive steel arch bridge over New River on US 19
Open to traffic
Ohio River I-275 Bridge (Campbell County, Kentucky)Built 1979
Through truss bridge over Ohio River on I-275
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
Perrine Bridge (Twin Falls County, Idaho)Built 1976
Steel arch bridge over Snake River on US 93 at Twin Falls
Open to traffic
Peyton Bridge (Jackson County, Oregon)Built 1975
Deck truss bridge over Rogue River on OR 62
Open to traffic
Pleasant Street Bridge (Milwaukee County, Wisconsin)Built 1972; improvements made in 1990
Bascule bridge over Milwaukee River on E. Pleasant Street in Milwaukee
Open to traffic
Ramsour Road Bridge (Ashley County, Arkansas)Built 1972
Wooden bridge over Coffee Creek Relief on Ramsour Road (CR 11) at Mill Pond southwest of Crossett in West Crossett
Open to one-lane 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
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
Selah Creek Bridge (Yakima County, Washington)Built 1971
Concrete arch bridge over Selah Creek on I-82
Open to traffic
Sixth Street Bridge (Minnehaha County, South Dakota)Built 1975
Bridge over Big Sioux Rv on Sixth Street E of Phillips Ave. in Sioux Falls
Open to traffic
Spencer Creek Covered Bridge (St. Charles County, Missouri)Built 1976 by Roger Adams
Replica covered bridge over Spencer Creek at Spencer Creek Subdivision in St. Peters
Open to traffic
Tennessee River I-24 Bridge (Marshall County, Kentucky)Built 1974
Pair of steel through arch bridges over the Tennessee River on I-24
Open to traffic
Twelfth Avenue Bridge (Linn County, Iowa)Built 1974
Five-span open-spandrel arch bridge over Cedar River on 12th Avenue in Cedar Rapids
Open to traffic
US 41/45 Pedestrian/Bicycle Overpass (Waukesha County, Wisconsin)Built 1970; First Cable-stayed bridge built in the United States
Cable-stayed bridge over US 41-US 45 on Water St. in Menomonee Falls
Open to pedestrians/bicycles
Vicksburg I-20 Bridge (Warren County, Mississippi)Built 1973
Cantilevered through truss over the Mississippi River on I-20 at Vicksburg
Open to traffic
Viet Nam Veterans Memorial Bridge (Ohio County, West Virginia)Built 1978
Steel through arch bridge over Ohio River on Interstate 470
Open to traffic
Wisconsin Avenue Bridge (Milwaukee County, Wisconsin)Built 1975
Vertical lift bridge over Milwaukee River on Wisconsin Avenue in Milwaukee
Open to traffic