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Built during 1970s

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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 Subdivision
Open to traffic

BNSF - Tunnel 1.5 (Skamania County, Washington)
Built 1977
Tunnel on BNSF
Open to traffic

BNSF - US 59 Overpass (Shelby County, Iowa)
Built 1970
Steel stringer bridge over US 59 on BNSF
Open to traffic

BNSF Route D Bridge (Greene County, Missouri)
Built 1974: rehabilitated 2010
Steel stringer bridge over BNSF RR on Route D
Open 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 scrapped
Abandoned concrete stringer bridge over West Fork Fourteenmile Creek and Concord Road on Abandoned Marble Hill Line
Derelict/abandoned

Boca Ciega Bay Bridge (Old) (Pinellas County, Florida)
Built 1971; Replaced 2008-2010
Pair of bascule bridges over Johns Pass Boca Ciega Bay on FL 699 (Gulf Blvd.) in Madeira Beach
Replaced by a new bridge

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

Boulevard Park Footbridge (Whatcom County, Washington)
Built 1979
Lost Through truss bridge over BNSF Railway on Pedestrian Path
Removed but not replaced

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
Warren 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

Brickell Key Bridge (Miami-Dade County, Florida)
Built 1973
Stringer bridge over Brickell Bay on Se 8th 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

BridgeStreet-Branch Frankford Creek Bridge (Replacement) (Philadelphia County, Pennsylvania)
Built 1970
Culvert bridge over Branch Frankford Creek on Bridge Street
Open to traffic

Brisco Bridge (Center Way Arch Replacement) (Steuben County, New York)
Stringer bridge over CHEMUNG RIVER on RTE 414
Open to traffic

Broadway Bridge (Replacement) (Branch County, Michigan)
Beam bridge over ST JOSEPH RIVER on BROADWAY STREET
Open to traffic

Broken Kettle Creek Bridge (Plymouth County, Iowa)
Built or relocated here 1976
Lost pony truss bridge over Broken Kettle Creek on CR K18
Replaced by a new bridge

Bronco Street Bridge (Macon County, Missouri)
Built ca. 1970
Lost steel stringer bridge over Little Brush Creek on Bronco Street
Replaced by a new bridge

Brookdale Avenue Bridge (Columbiana County, Ohio)
Built 1973 by the Ohio Bridge Corp., rehabilitated 2011
Modern pony truss bridge over Penn Central Railroad on Hunston Road (CR 443) in East Palestine
Open to traffic

Bruckner Boulevard - Westchester Creek Bridge (Bronx County, New York)
Built 1971
Bridge over Westchester Creek on Bruckner Boulevard
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

BSNF - Rulo 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

Buck Creek Bridge (Audubon County, Iowa)
Built or relocated 1975
Pony truss bridge over Buck Creek on 330th Street
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

Buckeye Creek Bridge (Jackson County, Ohio)
built 1971, rehabilitated 200
pony truss bridge over Buckeye Creek on CR 85 in Jackson
open to traffic

Bunker Hill Road Bridge (Jones County, Iowa)
Built 1977
Pony truss bridge over Bears Creek on Bunker Hill Road
Open to traffic; Doomed

Bunker Hill Road Bridge (Lincoln County, Missouri)
Bridge over Mill Creek on Bunker Hill Road
Open to traffic

Buquet Bridge (Terrebonne Parish, Louisiana)
Built 1976
Vertical lift bridge over Grand Caillou Bayou on Falgout Canal Road
Open 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 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

C.B. Robinson Memorial Bridge (Hamilton County, Tennessee)
Built 1976
Girder bridge over Tennessee River on Tennessee State Route 319
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; Replaced 2010
Wooden bridge over Cache River on CR 51
Replaced by a new bridge

Caddo Creek Bridge (Carter County, Oklahoma)
Built 1977; replaced 2015
Lost pony truss bridge over Caddo Creek on N3190
Replaced by a new bridge

Campus Drive Bridge (Racine County, Wisconsin)
Built 1970
Concrete arch bridge over Wind Point Creek on Campus Drive in Wind Point
Open to traffic

Canacadea Street-Canacadea Creek Bridge (Allegany County, New York)
Built 1973
Steel stringer bridge with open grate deck over Canacadea Creek on Canacadea Street
Open to traffic

Caņada Del Refugio Bridge (Santa Barbara County, California)
Built 1974
Culvert bridge over Caņada Del Refugio on Refugio Beach Road
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, replaced 2007
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, Alaska)
Built 1976
Cable-stayed bridge over Captain William Moore Creek on Klondike Highway in Skagway
Open to traffic

Carlin Highway Tunnel (Elko County, Nevada)
Tunnel on IH-80
Open

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

Carrollton Pike I-77 (NB) Bridge (Carroll County, Virginia)
Built 1978
Steel rigid frame bridge over Carrollton Pike/US 58/US 221 on I-77 (NB)
Open to traffic

Carrollton Pike I-77 (SB) Bridge (Carroll County, Virginia)
Built 1978
Steel rigid frame bridge over Carrollton Pike/US58/US221 on I-77 (SB)
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

Castle Bridge (Ida County, Iowa)
Built 1971
Wire suspension bridge over Odebolt Creek on Pedestrian Pathway
Open to pedestrians only

Cedar Creek Bridge Route M (Washington County, Missouri)
Built 1972
Steel stringer bridge over Cedar Creek on Route M
Open to traffic

Cedar Grove Ravine Bridge (Sierra County, California)
Built 1975
Steel stringer bridge over Cedar Grove Ravine on Port Wine Ridge Rd
Open to traffic

Cedar Key Bridge (Levy County, Florida)
Built 1974
Concrete tee beam bridge over Havens Creek (Cedar Key Channel #4) on Florida State Route 24
Open to traffic

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

Centerville Bridge (St. Mary Parish, Louisiana)
Built 1972
Swing bridge over Bayou Teche on Centerville Bridge Road
Open to traffic

Central Avenue - Salt River Bridge (New) (Maricopa County, Arizona)
Concrete stringer bridge over Salt River on Central Avenue
Open to traffic

CFNR - Brazos Drawbridge (Napa County, California)
Built 1979; Rendered inoperable by copper theives 2007; Reopened for traffic 2009
Bridge over Napa River on California Northern Railroad (CFNR)
Bridge is open to rail traffic with ongoing repairs

Chapel Road Bridge (Ohio County, West Virginia)
Built 1972
Steel rigid frame bridge over I-470 on CR 6 (Chapel Road)
Open to traffic

Chariton River Bridge (Lucas County, Iowa)
Built ca. 1970
Pony truss bridge over Chariton River on a 410th Street
Open to traffic

CHAT - Columbia Railroad Bridge (Houston County, Alabama)
Built mid-1970s to replace swing span immediately downstream
Warren through truss with sub-panels bridge over Chattahoochee River on Chattahoochee Bay Railroad
Open to traffic

Cheat Lake Bridge (Monongalia County, West Virginia)
Built 1976
Deck truss bridge over Cheat Lake on I-68
Open to traffic

Chesock Road (3) - Little Loyalsock Creek (Sullivan County, Pennsylvania)
Beam bridge over LITTLE LOYALSOCK CREEK on CHERRY TWP.T-359


Chippewa River Bridge (Chippewa County, Wisconsin)
Built 1971
Steel through arch bridge over Chippewa River on Bridge Street (WI 64) in Cornell
Open to traffic

Chisholm Creek Bridge (Oklahoma County, Oklahoma)
Built 1975; replaced 2012
Lost pony truss bridge over Chisholm Creek on N.W. 234th St. in Edmond
Replaced by a new bridge

Chokosna Bridge (Valdez-Cordova Census Area, Alaska)
Built 1973
Warren pony truss bridge over Chokosna River on Edgerton/Mccarthy
Open to traffic

Church Street Bridge (Linn County, Oregon)
Built 1976
Polygonal Warren pony truss bridge over North Santiam River on Church Street in Idanha
Open to traffic

Church Street-Susquehanna River Bridge(Replacement) (Wyoming County, Pennsylvania)
Built 1974
Steel stringer bridge over Susquehanna River on Sr 3001
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

Clarno Bridge (Wasco County, Oregon)
Built 1975
Steel through arch bridge over John Day River on OR 218
Open to traffic

Clay Wade Bailey Bridge (Hamilton County, Ohio)
Built 1974
Through truss bridge over Ohio River on US 25/US 42/US 127 in Cincinnati
Open to traffic

Clear Creek Bridge (Cattaraugus County, New York)
Built 1970
Pony truss bridge over Clear Creek on Bray Road
Open to traffic

Clear Spring Creek Bridge (Jackson County, Indiana)
Built 1972
Arch bridge over Clear Spring Creek on CR 75 South
Open to traffic

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

Cliff Drive Bridge (Taney County, Missouri)
Built 1973
Steel rigid frame bridge over US Hwy 65 on Cliff Drive in Branson
Open to traffic

CMR - Woodson Road Overpass (St. Louis County, Missouri)
Built 1973;
Pony plate girder bridge over Woodson Rd. on former Rock Island
Open to traffic

CN - 4th Street Overpass (Sangamon County, Illinois)
Built 1975
Deck plate girder bridge over S. 4th Street on Canadian National Rwy
Open to traffic

CN - Calumet River Bridge (Cook County, Illinois)
Built 1974
Warren through truss bridge over Calumet River on Elgin, Joliet & Eastern Ry (now CNRR)
Open

CN - Galena River Bridge (Jo Daviess County, Illinois)
built 1976
Pony/through plate girder bridge over Galena River on Canadian National in Galena
Open to traffic

CN - Ridge Road Overpass (Grundy County, Illinois)
Built 1974
Pony/through plate girder bridge over Ridge Road in Minooka on EJ&E Ry (now CN)
Open to traffic

CN - US51 Overpass (Alexander County, Illinois)
Built 1974
Steel stringer bridge over Us 51 on Icg Rr


Coal Creek 25th Place Bridge (Marion County, Iowa)
Steel stringer bridge over Coal Creek on 25th Place
Open to traffic

Cole Creek Bridge (Allegany County, New York)
Steel stringer bridge over Cole Creek on Hooker Road/Dodge Creek Road
Intact but closed to all traffic

College Street Bridge (1971) (Johnson County, Iowa)
Built 1971
Concrete rigid frame bridge over Ralston Creek & Parking Lot on College Street
Open to traffic

Colonial Parkwy - Hummelsine Parkway SR 199 Bridge (James City County, Virginia)
Built 1976
Deck arch bridge over Colonial Parkway on Hummelsine Parkway/Route 199
Open to traffic

Commodore Barry Bridge (Gloucester County, New Jersey)
Built 1974
Cantilevered through truss bridge over Delaware River on US 322
Open to traffic