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Built during 1970s

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10th Street Bridge (St. Clair County, Illinois)
Built 1972
Steel stringer bridge over I-64 on 10th Street (IL 203)
Open to traffic

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

155th Street Bridge (Cedar County, Iowa)
Built 1976
Pony truss bridge over Yankee Run on 155th Street
Open to traffic

1st Street Bridge (Le Sueur County, Minnesota)
Built 1978
Stringer bridge over Cannon River on 1st Street in Waterville
Open to traffic

245th Street Bridge (Fayette County, Iowa)
Built 1973
Pony truss bridge over an unnamed creek on 245th Street (245th St)
Open to traffic

4th Street Ramp (Bowie County, Texas)
Built 1975
Ramp from Texas Viaduct NB to W 4th St
Open to one-lane traffic above and below

9th St Bridge (St. Clair County, Illinois)
Built 1972
Steel stringer bridge over I-64 on 9th St/ Fau 9214
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

Adolph Whitaker Road Bridge (Holmes County, Florida)
Built 1971; rehabilitated 2000
Truss bridge over Wrights Creek on Adolph Whitaker Road
Open to traffic

Alameda Street Bridge (Santa Fe County, New Mexico)
Built 1979
Concrete arch bridge over Santa Fe River on Alameda Street in Santa Fe
Open to traffic

Albert Lea Lake Interstate Bridge (Freeborn County, Minnesota)
Built 1970
Stringer bridge over Albert Lea Lake on I 35
Open to traffic

Alder Point Road Bridge (Humboldt County, California)
Built 1972
Steel stringer bridge over Eel River and NWP RR tracks on Alderpoint Road
Open to 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

Ames Road Bridge (Linn County, Missouri)
Built ca. 1970; replaced 2006
Pony truss bridge over Parsons Creek on Ames Road
Replaced by new bridge

Amite River LA 22 Bridge (Livingston Parish, Louisiana)
Built 1974
Swing bridge over Amite River on LA 22 at Clio
Open to traffic

Arkansas Union Bridge (Washington County, Arkansas)
Built 1971
Concrete tee beam bridge over Over SH 873 (Garland Ave) in Fayetteville
Open to pedestrians above, bus traffic below

Atchafalaya Basin Bridge (St. Martin Parish, Louisiana)
Built 1971
Pair of 16+ mile bridges over the Atchafalaya Basin on I-10
Open to traffic

Atchafalaya River Bridge (St. Martin Parish, Louisiana)
Built 1972
Girder bridge over Atchafalaya River on I-10
Open to traffic

Atchafalaya River LA 1 Bridge (Avoyelles Parish, Louisiana)
Built 1971
Cantilevered Warren through truss bridge over Atchafalaya River on LA 1 at Simmesport in Simmesport
Open to traffic

Atchafalaya River US 190 Bridge (St. Landry Parish, Louisiana)
Built 1973 and 1988
Pair of through truss bridges over Atchafalaya River on US 190 at Krotz Springs
Open to traffic

Atchafalaya River US 90 Bridge (St. Mary Parish, Louisiana)
Built 1975
Through truss bridge over Atchafalaya River on US 90 between Berwick and Morgan City
Open to traffic

Atsfrr & Sand Creek Bridge (Harvey County, Kansas)
Built 1975; demolished 2012-13
Lost Steel stringer bridge over Atsfrr & Sand Creek on Us 50 Hwy
No longer exists

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

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

Bailwick Road Bridge (Fairfield County, Connecticut)
Built 1970
Concrete arch bridge over Byram River on Bailwick Road in Greenwich
Open to traffic

Bakers Creek Bridge (Pope County, Arkansas)
Built 1970
Lost Pony truss bridge over Bakers Creek on AR-7
Replaced by a new bridge

Barton Bridge (Clackamas County, Oregon)
Built 1970
Steel tied arch bridge over Clackamas River on Bakers Ferry Road
Open to traffic

Baughmans Creek Bridge (Cass County, Iowa)
Built 1979
Pony truss bridge over Baughmans Creek on 560th Street
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 Blue Pontoon Bridge (Lafourche Parish, Louisiana)
Built 1972
Swing bridge over Intracoastal Waterway (Bayou Blue) on LA 316
Open to traffic

Bayou Boeuf/Kraemer Bridge (Lafourche Parish, Louisiana)
Built 1976
Vertical lift bridge over Bayou Boeuf on LA 307
Open to traffic

Bayou Bonfouca LA 433 Bridge (St. Tammany Parish, Louisiana)
Built 1976
Swing bridge over Bayou Bonfouca on LA 433
Open to 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

Bayou Dulac LA 57 Bridge (Terrebonne Parish, Louisiana)
Built 1971
Swing bridge over Bayou Dulac on LA 57 in Dulac
Open to traffic

Bayou Teche LA 322 Bridge (St. Mary Parish, Louisiana)
Built 1971
Swing bridge over Bayou Teche on LA 322 in Franklin
Open to traffic

Bear Creek Bridge (Searcy County, Arkansas)
Built 1971
Wooden bridge over Bear Creek on CR 278
Open to one-lane traffic

Beaver Creek Bridge (Comanche County, Oklahoma)
Built 1974
Pony truss bridge over Beaver Creek on IRR E1640
Open to traffic

Beloit Bridge (Lyon County, Iowa)
Built 1971 replacing a one-span pin-connected Pennsylvania through truss bridge built in 1897
Steel stringer bridge over Big Sioux River on Bridge Street (IA)/ 283rd Street (SD)
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

Betsy Ross Bridge (Philadelphia County, Pennsylvania)
Built 1973
Truss bridge on NJ 90 over Delaware River, Richmond Street, River Road, Hedley Street
Open to 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 Creek Overflow Bridge (Henry County, Missouri)
Built 1978
Steel stringer bridge over Big Creek Overflow on Mo 7 S
Open to traffic

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 Shoal Creek Bridge (Logan County, Arkansas)
Built 1970
Beam bridge over Big Shoal Creek on CR 125
Open to 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

Big Walker Mountain Tunnel (Bland County, Virginia)
Built 1972
Tunnel under Big Walker Mountain on I-77
Open to traffic

Biloxi Back Bay Bridge (Harrison County, Mississippi)
Built 1973
Bridge over Biloxi Back Bay on I-110
Open to traffic

Birmingham Bridge (Allegheny County, Pennsylvania)
Built 1976
Steel through arch bridge over Monongahela River in Pittsburgh
Open to traffic

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

BNSF RR Bridge (Greene County, Missouri)
Built 1974: rehabilitated 2010
Steel stringer bridge over BNSF RR on Route D
Open to traffic

Bogue Chitto River Bridge (Washington Parish, Louisiana)
Built 1970
Steel stringer bridge over Bogue Chitto River on LA-437
Open to traffic

Boone Pond Ditch Bridge (Stoddard County, Missouri)
Built 1971; replaced 2007
Lost wooden deck bridge over Boone Pond Ditch on CR 250
Replaced by new bridge

Boyer River Bridge (Crawford County, Iowa)
Built 1971
Pony truss bridge over Boyer River on Deloit Blvd/G Avenue
Open to traffic

Boyer River Bridge (Crawford County, Iowa)
Built 1971
Pony truss bridge over Boyer River on 400th Street
Open to traffic

Boynton Inlet Bridge (Palm Beach County, Florida)
Built 1975
Steel stringer bridge over Boynton Inlet on Sr A1a
Open to traffic

Branch Beaver Creek Bridge (St. Croix County, Wisconsin)
Built 1975
Steel arch bridge over Branch Beaver Creek on 100th Avenue
Open to traffic

Branch Des Moines River Bridge (Van Buren County, Iowa)
Built 1971
Pony truss bridge over a branch of Des Moines River on 270th Street
Open to traffic

Branch East Nishnabotna River Bridge (Audubon County, Iowa)
Built 1972
Pony truss bridge over a branch of East Nishnabotna River on Lark Avenue
Open to traffic

Branch Fabius Creek Bridge (Davis County, Iowa)
Built 1974
Pony truss bridge over a branch of Fabius Creek on 289th Tr
Open to traffic

Branch Laughery Creek Bridge (Ripley County, Indiana)
Built 1974
Arch bridge over a branch of Laughery Creek on CR 350 North
Open to traffic

Branch White River Bridge (Owen County, Indiana)
Built ca. 1970
Arch bridge over a branch of White River on CR 175 West
Open to traffic

Brandon Road Bridge (Will County, Illinois)
Built 1972
Steel stringer bridge over Des Plaines River on Brandon Road
Open to traffic

Bread Springs Wash Bridge (McKinley County, New Mexico)
Built 1976
Pony truss bridge over Bread Springs Wash on CR 2
Open to traffic

Breton Creek Bridge (Washington County, Missouri)
Built 1972
Bridge over Breton Creek on Lead Street in Potosi
Open to traffic

Breton Creek Bridge (Washington County, Missouri)
Built 1975
Bridge over Breton Creek on Mine Street
Open to traffic

Bridge over Incline (Hamilton County, Tennessee)
Built 1970
Beam bridge over Lookout Mountain Incline Railway on Lookout Mountain Scenic Hwy. / Tenn. 148
Open to traffic

Broken Kettle Creek Bridge (Plymouth County, Iowa)
Built 1976
Pony truss bridge over Broken Kettle Creek on CR K18 (K18)
Open to traffic

Brookdale Avenue Bridge (Columbiana County, Ohio)
Built 1973 by the Ohio Bridge Co.
Modern pony truss bridge over Penn Central Railroad on Hunston Road (CR 443) in East Palestine
Open to traffic

Brush Creek Bridge (Benton County, Missouri)
Built 1974; Rehabilitated 2010
Steel stringer bridge over Brush Creek on Route C
Open to traffic

Brushy Creek Bridge (Guthrie County, Iowa)
Built 1976
Through truss bridge over Brushy Creek on Kopeck Avenue
Open to traffic

Bryant Bridge (Santa Rosa County, Florida)
Built 1975
Steel stringer bridge over Blackwater River on Bryant Bridge Road
Open to traffic

Buck Creek Bridge (Audubon County, Iowa)
Built 1975
Pony truss bridge over Buck Creek on 330th Street
Open to traffic

Buck Creek Bridge (Cass County, Iowa)
Built 1974
Through truss bridge over Buck Creek on Chicago Road
Open to traffic

Buck Creek Bridge (Cass County, Iowa)
Built 1974
Pony truss bridge over Buck Creek on Eastland Street
Open to traffic

Buck Creek Bridge (Cass County, Iowa)
Built 1979
Pony truss bridge over Buck Creek on a Fairview Road
Open to traffic

Buckeye Campground Bridge (Mono County, California)
Built 1978; rehabilitated 1988
Pony truss bridge over Buckeye Creek on Buckeye Campground
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

Burns Park Covered Bridge (Pulaski County, Arkansas)
Replica covered bridge over East Fork White Oak Bayou in Burns Park, North Little Rock
Open to one lane of traffic

Butler Creek Bridge (Goodhue County, Minnesota)
Built 1979
Timber beam bridge over Butler Creek on County 14
Open to traffic

C&O Canal Bridge (Washington County, Maryland)
Built 1973; rehabilitated 1984
Steel stringer bridge over C&O Canal on Fort Frederick Acc
Open to traffic

Cable Creek Road Bridge (Umatilla County, Oregon)
Built 1975
Kingpost pony truss bridge over Camas Creek on Cable Creek Road
Open to traffic

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

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

Caney Creek Bridge (Little River County, Arkansas)
Built 1970
Bridge over Caney Creek on AR 41
Open to traffic

Caney Creek Relief Bridge (Little River County, Arkansas)
Built 1970
Bridge over Caney Creek Relief on Sh 41 Sec. 02
Open to traffic

Caney River Bridge (Washington County, Oklahoma)
Built in 1971 to bypass the open-spandrel arch bridge right next to it
Stringer bridge over Caney River on SE Adams Blvd
Open to traffic

Canon Del Camino Bridge (Sandoval County, New Mexico)
Built 1975
Deck truss bridge over Canon Del Camino on CR S-35
Open to 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

Captain William Moore Bridge (Skagway-Hoonah-Angoon Census Area, Alaska)
Built 1976
Cable-stayed bridge over Captain William Moore Creek on Klondike Highway in Skagway
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

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

Center Avenue Bridge (Allegheny County, Pennsylvania)
Built 1973
Steel deck arch bridge over Lowries Run on Center Avenue
Open to traffic

Centervilla Bridge (St. Mary Parish, Louisiana)
Built 1972
Bridge over Bayou Teche on Local road
Open to traffic

Chariton River Bridge (Lucas County, Iowa)
Built ca. 1970
Pony truss bridge over Chariton River on a local road
Open to traffic

Charlton street overpass (Jefferson County, Kentucky)
Built 1974
Pony/through plate girder bridge over Charlton Street on Csx Railroad (formerly L&N railroad)
Open to traffic

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