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Built during 1970s
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11th Street Viaduct (Minnehaha County, South Dakota)
Built 1971; rehabilitated 1986Steel stringer bridge over 3rd Ave, Big Sioux R & RR on 11th Street in Sioux FallsOpen to traffic
155th Street Bridge (Cedar County, Iowa)
Built 1976Pony truss bridge over Yankee Run on 155th StreetRemoved
1st Street Bridge (Le Sueur County, Minnesota)
Built 1978Stringer bridge over Cannon River on 1st Street in WatervilleOpen to traffic
245th Street Bridge (Fayette County, Iowa)
Built 1973Pony truss bridge over an unnamed creek on 245th Street (245th St)Open to traffic
36th Street Bridge (Kanawha County, West Virginia)
Built 1975Deck plate girder bridge over Kanawha River on 36th Street SE (CR 60/62)Open to traffic
7th Street Footbridge (Hancock County, Iowa)
Relocated here and narrowed 1976Warren pony truss bridge over Winnebago River on 7th Street FootpathOpen to pedestrians only
A. Frederick Oberlin Bridge (New Haven County, Connecticut)
Built 1979 by students of the Eli Whitney Technical School.Town lattice truss bridge over Mill River on White Trail Footpath in Whitneyville.Open to pedestrians only
Adolph Whitaker Road Bridge (Holmes County, Florida)
Built 1971; rehabilitated 2000Bailey Truss bridge over Wrights Creek on Adolph Whitaker RoadOpen to traffic
Alder Point Road Bridge (Humboldt County, California)
Built 1972Steel stringer bridge over Eel River and NWP Railroad on Alderpoint RoadOpen to traffic
Allegany Bridge (1973) (Cattaraugus County, New York)
Stringer bridge over ALLEGHENY RIVER on FIVE MILE RDOpen to traffic
Allen's Bridge (Greene County, Tennessee)
Covered Bridge destroyed by flood 1901, Iron Truss Bridge demolished 1976Concrete deck girder bridge over Nolichucky (Nolachucky) RiverOpen to traffic
Alley Spring Branch Bridge (Shannon County, Missouri)
Built 1975; rehabilitated 1983Steel stringer bridge over Alley Spring Branch on Service RoadIntact but closed to all traffic
Amite River LA 22 Bridge (Livingston Parish, Louisiana)
Built 1974Swing bridge over Amite River on LA 22 at ClioOpen to traffic
Antioch Bridge (1978) (Contra Costa County, California)
The current bridge was completed and opened to traffic in 1978. It measures 1.8 miles (2.9 km). It replaced the original structure that was built in 1926 by Aven Hanford and Oscar Klatt, who went on to build the original span of the Carquinez Bridge.Concrete deck girder bridge over San Joaquin River on CA-160Open to traffic
Arbogast Road Bridge (1972) (Branch County, Michigan)
Built 1972; closed 2009; replaced 2016Lost Bridge over St. Joseph River on Arbogast RoadReplaced by a new bridge
Archie Stevenot Memorial Bridge (Tuolumne County, California)
Built 1976Concrete segemental box girder bridge over Stanislaus River (New Melones Reservoir) on Golden Chain Highway (CA 49)Open to traffic
Atchafalaya Basin Bridge (St. Martin Parish, Louisiana)
Built 1971Pair of 16+ mile bridges over the Atchafalaya Basin on I-10Open to traffic
Atchafalaya River LA 1 Bridge (Avoyelles Parish, Louisiana)
Built 1971Cantilevered Warren through truss bridge over Atchafalaya River on LA 1 at Simmesport in SimmesportOpen to traffic
Atchafalaya River US 190 Bridge (St. Landry Parish, Louisiana)
Built 1973 (WB) and 1988 (EB)Pair of through truss bridges over Atchafalaya River on US 190 at Krotz SpringsOpen to traffic
ATSF - Limit Street Overpass (Leavenworth County, Kansas)
Concrete box beam bridge over Limit Street on AT&SF RRBridge removed and not replaced
Auburn-Foresthill Bridge (Placer County, California)
Built 1972Deck truss bridge over North Fork American River on Auburn-Foresthill Road in North AuburnOpen to traffic
Bachmayer Park--Ellis Park Bridge (Lenawee County, Michigan)
Built 1977-1978; rehabilitated and handicap-accessible ramps added 2018Timber arch bridge over River Raisin on Pedestrian pathOpen to pedestrians only
Barge Basin PA 28 Bridge (Allegheny County, Pennsylvania)
Built 1971; rehabilitated 2004Girder bridge over Barge Basin on PA 28Open to traffic
BART/MUNI - Market Street Subway (San Francisco County, California)
Originally built 1973 for Bay Area Rapid Transit, San Francisco Municipal Railway connection added in 1980Tunnel on Bay Area Rapid Transit & San Francisco Municipal RailwayOpen to traffic
Barton Bridge (Clackamas County, Oregon)
Built 1970 using main span from Eagle Creek Bridge BH 45564Steel tied arch bridge over Clackamas River on Bakers Ferry RoadOpen to traffic
Bay Road Bridge (Pope County, Illinois)
Built or relocated here in 1977; replaced 2007Lost pony truss bridge over Bay Creek on Bay Road (TR 137), 2.5 mi. west of HombergReplaced by a new bridge
Bayou Bonfouca LA 433 Bridge (St. Tammany Parish, Louisiana)
Built 1976Swing bridge plate girder over Bayou Bonfouca on LA 433Open to traffic
Bayou Dulac LA 57 Bridge (Terrebonne Parish, Louisiana)
Built 1971Swing bridge over Bayou Dulac on LA 57 in DulacOpen to traffic
Bayou Lafourche Bridge (Assumption Parish, Louisiana)
Built 1976Slab bridge over Bayou Lafourche @ Munson on La0402Open to traffic
Bayou Lafourche Bridge (Assumption Parish, Louisiana)
Built 1977Stringer bridge over Bayou Lafourche on LA 70 SpurOpen to traffic
Bayou Teche LA 322 Bridge (St. Mary Parish, Louisiana)
Built 1971Swing bridge over Bayou Teche on LA 322 in FranklinOpen to traffic
Bayview Bridge (Door County, Wisconsin)
Built 1978Bascule bridge over Sturgeon Bay on WI 42/WI 57 in Sturgeon BayOpen to traffic
Bear Creek Bridge (Searcy County, Arkansas)
Built 1971Wooden bridge over Bear Creek on CR 278Open to one-lane traffic
Betsy Ross Bridge (Philadelphia County, Pennsylvania)
Built 1973Truss bridge on NJ 90 over Delaware River, Richmond Street, River Road, Hedley StreetOpen to traffic
Bicentennial Bridge (Berrien County, Michigan)
Built 1976; repaired 2002Deck girder bridge over Benton Harbor on Main Street (Business Loop I-94)Open to traffic
Big Creek Ditch AR 349 Bridge (Craighead County, Arkansas)
Built 1971; replaced 2006Lost pony truss bridge over Big Creek Ditch on AR 349Replaced by new bridge
Big Mac Bridge (Hamilton County, Ohio)
Constructed started 1971; opened to limited traffic 1977; dedicated 1981; entire I-471 project completed 1985Pair of tied-arch bridges over the Ohio River on I-471 in CincinnatiOpen to eight total lanes of traffic
Big Muddy River Bridge (Jackson County, Illinois)
Built 1980Bridge over Big Muddy River on Reed Station RoadOpen to traffic
Big Shoal Creek Bridge (Logan County, Arkansas)
Built 1970Beam bridge over Big Shoal Creek on CR 125Open to traffic
Big Spanish Channel Bridge (Monroe County, Florida)
Built 1972Stringer bridge over Big Spanish Channel on Sr-5 (Us-1) NbOpen to traffic
Big Spring Bridge (Carter County, Missouri)
Built 1977; demolished 2019Lost wooden bridge over Spring Branch on Pea Vine Road beyond the end of MO 103 at Big SpringReplaced by a new bridge
Biloxi Back Bay Bridge (Harrison County, Mississippi)
Built 1973Bridge over Biloxi Back Bay on I-110Open to traffic
Birmingham Bridge (Allegheny County, Pennsylvania)
Built 1969-77Steel through arch bridge over Monongahela River in PittsburghOpen to traffic
Black Bayou Bridge (Calcasieu Parish, Louisiana)
Built 1979Pontoon Swing bridge over the Intracoastal Waterway on LA 384Open to traffic
Black River Bridge (Georgetown County, South Carolina)
Built 1974Stringer bridge over Black River on Sc 51Open to traffic
Blue Heron Bridge (Palm Beach County, Florida)
Built 1976Stringer bridge over Intracoastal Waterway on Sr A1aOpen to traffic
BNSF - 7th Street Bridge (Burleigh County, North Dakota)
Built 1979Steel stringer bridge over 7th Street (ND-1804) on BNSF RailwayOpen to traffic
BNSF - Flathead Tunnel (Lincoln County, Montana)
Built 1970Tunnel on BNSF Kootenai River SubdivisionOpen to traffic
BNSF - Hartson Avenue Overpass (Spokane County, Washington)
Built 1972 during line relocations due to the Burlington Northern merger in 1970. Replaced a previous bridge.Steel stringer bridge over Hartson Avenue on BNSF Columbia River SubdivisionOpen to traffic
BNSF - Indian Canyon Bridge (Spokane County, Washington)
Built 1971-72 as part of railroad line relocations in Spokane before EXPO '74 resulting from Burlington Northern merger in 1970. Replaced a large fill, which was then removed.Beam bridge over Indian Creek on BNSF Columbia River SubdivisionOpen to traffic
BNSF - Kickapoo Creek Bridge #8 (Peoria County, Illinois)
Built 1976, South Approach Built 1921Pony/through plate girder bridge over Kickapoo Creek on BNSF RailwayOpen to traffic
BNSF - Larkin-Williams Road Overpass (St. Louis County, Missouri)
Built in 1978 on a new Frisco line to the Chrysler Plant.Bridge over Larkin-Williams Road on BNSF RailroadOpen to traffic
BNSF - Latah Creek Viaduct (Spokane County, Washington)
Built 1972 during line relocations due to the Burlington Northern merger in 1970. Built to tie 3 rail lines together: The Great Northern line to Seattle, the Northern Pacific line to Sandpoint, and the SP&S line to Pasco.Deck girder bridge over Latah Creek, I90 on BNSFOpen to traffic
BNSF - Sand Creek Bridge (Bonner County, Idaho)
Built 1972 during line relocations due to the Burlington Northern merger in 1970. Built to tie Great Northern line on west side of Sand Creek to Northern Pacific line on east side of Sand Creek.Deck plate girder bridge over Sand Creek, US 2, & US 95 on BNSF Kootenai SubdivisionOpen to traffic
BNSF - Snake River Bridge (Franklin County, Washington)
Built 1971Vertical lift bridge over Snake River on Burlington Northern - Santa Fe RailroadOpen to traffic
BNSF - Spokane River Bridge (Spokane County, Washington)
Built 1972 during line relocations due to the Burlington Northern merger in 1970. Built to tie former Great Northern line to former Northern Pacific line across the Spokane River.Deck plate girder bridge over Spokane River on BNSF Chewelah SubdivisionOpen to traffic
BNSF - Tunnel 1.5 (Skamania County, Washington)
Built 1977Tunnel on BNSFOpen to traffic
BNSF - US 59 Overpass (Shelby County, Iowa)
Built 1970Steel stringer bridge over US 59 on BNSFOpen to traffic
BO - West Fork Fourteenmile Creek and Concord Road Bridge (Scott County, Indiana)
Built for the Marble Hill Nuclear Plant in 1977 abandoned in 1984 when the Plant was scrappedAbandoned concrete stringer bridge over West Fork Fourteenmile Creek and Concord Road on Abandoned Marble Hill LineDerelict/abandoned
Bob Brugmann Suspension Bridge (Rutland County, Vermont)
Wire suspension bridge over Mill River on Appalachian Trail/Long TrailOpen to pedestrians only
Boca Ciega Bay Bridge (1971) (Pinellas County, Florida)
Built 1971; Replaced 2008-2010Pair of bascule bridges over Johns Pass Boca Ciega Bay on FL 699 (Gulf Blvd.) in Madeira BeachReplaced by a new bridge
Boone Pond Ditch Bridge (Stoddard County, Missouri)
Built 1971; replaced 2007Lost wooden deck bridge over Boone Pond Ditch on CR 250Replaced by new bridge
Boyer River Bridge (Crawford County, Iowa)
Built 1971Warren Pony truss bridge over Boyer River on 400th StreetOpen to traffic
Boyer River Bridge (Crawford County, Iowa)
Built 1971Pony truss bridge over Boyer River on Deloit Blvd/G AvenueOpen to traffic
Branch Fabius Creek Bridge (Davis County, Iowa)
Built 1974Pony truss bridge over a branch of Fabius Creek on 289th TrOpen to traffic
Branch White River Bridge (Owen County, Indiana)
Built ca. 1970Arch bridge over a branch of White River on CR 175 WestOpen to traffic
Brandon Road Bridge (Will County, Illinois)
Built 1972Steel stringer bridge over Des Plaines River on Brandon RoadOpen to traffic
Bread Springs Wash Bridge (McKinley County, New Mexico)
Built 1976Pony truss bridge over Bread Springs Wash on CR 2Open to traffic
Breton Creek Bridge (Washington County, Missouri)
Built 1975Bridge over Breton Creek on Mine StreetOpen to traffic
Breton Creek Bridge (Washington County, Missouri)
Built 1972Bridge over Breton Creek on Lead Street in PotosiOpen to traffic
Brickell Key Bridge (Miami-Dade County, Florida)
Built 1973Stringer bridge over Brickell Bay on Se 8th StreetOpen to traffic
Bridge over Incline (Hamilton County, Tennessee)
Built 1970Beam bridge over Lookout Mountain Incline Railway on Lookout Mountain Scenic Hwy. / Tenn. 148Open to traffic
Brisco Bridge (Steuben County, New York)
Stringer bridge over Chemung River on RT414Open to traffic
Brookdale Avenue Bridge (Columbiana County, Ohio)
Built 1973 by the Ohio Bridge Corp., rehabilitated 2011Modern pony truss bridge over Penn Central Railroad on Hunston Road (CR 443) in East PalestineOpen to traffic
Brushy Creek Bridge (Guthrie County, Iowa)
Built 1976Through truss bridge over Brushy Creek on Kopeck AvenueOpen to traffic
BSNF - Rulo Bridge (Richardson County, Nebraska)
Built 1887; truss sections replaced with new trusses in 1977 but retaining original piersWarren through truss bridge over Missouri River on BNSF Railroad in RuloOpen to traffic
Buck Creek Bridge (Audubon County, Iowa)
Built or relocated 1975Pony truss bridge over Buck Creek on 330th StreetOpen to traffic
Buquet Bridge (Terrebonne Parish, Louisiana)
Built 1976Vertical lift bridge over Grand Caillou Bayou on Falgout Canal RoadOpen to traffic
Burns Park Covered Bridge 04-60-A (Pulaski County, Arkansas)
Replica covered bridge over East Fork White Oak Bayou in Burns Park, North Little RockOpen to one lane of traffic
Butler Creek Bridge (Goodhue County, Minnesota)
Built 1979Timber beam bridge over Butler Creek on County 14Open to traffic
C&O Canal Bridge (Washington County, Maryland)
Built 1973; rehabilitated 1984Steel stringer bridge over C&O Canal on Fort Frederick AccOpen to traffic
C.B. Robinson Memorial Bridge (Hamilton County, Tennessee)
Built 1976Girder bridge over Tennessee River on Tennessee State Route 319Open to traffic
Cable Creek Road Bridge (Umatilla County, Oregon)
Built 1975Kingpost pony truss bridge over Camas Creek on Cable Creek RoadOpen to traffic
Campus Drive Bridge (Racine County, Wisconsin)
Built 1970Concrete arch bridge over Wind Point Creek on Campus Drive in Wind PointOpen to traffic
Canacadea Creek Bridge (Allegany County, New York)
Built 1973Steel stringer bridge with open grate deck over Canacadea Creek on Canacadea StreetOpen to traffic
Caņada Del Refugio Bridge (Santa Barbara County, California)
Built 1974Culvert bridge over Caņada Del Refugio on Refugio Beach RoadOpen to traffic
Cane Creek CR 408 Bridge (Butler County, Missouri)
Built 1972Wooden deck bridge over Cane Creek on CR 408 just north of CR 410Open to one-lane traffic
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