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Built during 1970s

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West Portage Avenue Bridge (Chippewa County, Michigan)
Built 1970
Steel arch bridge over Edison Power House Canal on West Portage Avenue
Open to traffic

West Rock Road-Threemile Run Bridge (Replacement) (Bucks County, Pennsylvania)
Built 1979
Beam bridge over Threemile Run on West Rock Road
Open to traffic

Westover Bridge (Replacement) (Monongalia County, West Virginia)
Girder bridge carrying US 19 over Monongahela River
Open to traffic

Westport Bridge (Lincoln County, Maine)
Built 1974
Haunched steel stringer bridge over Cowsweag Narrows on Route 144; Westport Bridge Road; Main Road
Open to traffic

Whiskey Bay Channel Bridge (Iberville Parish, Louisiana)
Built 1972
Girder bridge over Whiskey Bay Channel on I-10
Open to traffic

White River & MoPAC Railroad Bridge (Baxter County, Arkansas)
Built 1972
Steel stringer bridge over White River & MoPacRailroad on SH 341
Open to traffic

Whites Bridge (Rt209)-Wisconisco Creek Replacement (Dauphin County, Pennsylvania)
Bridge
Open to traffic

Wildcat Creek Bridge (Yell County, Arkansas)
Built 1979
Steel stringer bridge over Wildcat Creek on Sh 307
Open to traffic

Wilderness Retreat Road Bridge (Union County, Illinois)
Built 1973
Timber stringer bridge over You-Be Hollow on Wilderness Retreat Road
Open to traffic

William T. Marler Memorial Bridge (Okaloosa County, Florida)
Original span built 1971; identical twin span added 1979
Concrete tee beam bridge over East Pass on U.S. Route 98
Open to traffic

Willow Creek Bridge (Monona County, Iowa)
Built 1978
Through truss bridge over Willow Creek on 285th Street (285th St)
Open to traffic

Wills Creek Bridge (Allegany County, Maryland)
Built 1977; rehabilitated 1998
Pony truss bridge over Wills Creek on Forest Grove Road
Open to traffic

Winter Clove Inn hiking trail covered bridge 32-20-a (Greene County, New York)
Built 1976 by Alfred S. Clark
Bridge over Winter Clove Stream on Hiking trail
Open to pedestrians (hiking trail)

Wisconsin Avenue Bridge (Milwaukee County, Wisconsin)
Built 1975
Vertical lift bridge over Milwaukee River on Wisconsin Avenue in Milwaukee
Open to traffic

WNYP RR- Madison Avenue Bridge (Allegany County, New York)
Built 1970
Beam bridge over WNYP RR on Madison Street
Open to traffic

Wolf Creek Bridge (Mono County, California)
Built 1979; rehabilitated 1988
Pony truss bridge over Wolf Creek on FR 62
Open to traffic

Wolf Creek Bridge (Comanche County, Oklahoma)
Built 1975
Pony truss bridge over Wolf Creek on S.W. Sheridan Rd. in Lawton
Open to traffic

Wolf Creek CR367 Bridge (Benton County, Arkansas)
Built 1976
Bridge over Wolf Creek on CR367
Good condition

Woodbridge Drive Bridge (Lewis and Clark County, Montana)
Built 1975
Deck arch bridge over Drainage 002 on Woodbridge Drive
Open to traffic

Wrights Ferry Bridge (Lancaster County, Pennsylvania)
Built 1972; rehabilitated 2013
Deck girder bridge over Susquehanna River on US 30 (Lincoln Highway)
Open to traffic

WV41 Overpass (Fayette County, West Virginia)
Built 1974; rehabilitated 1994
Steel stringer bridge over Csx Railroad on Wv 41
Open to traffic

Youghiogheny River Bridge (Fayette County, Pennsylvania)
Built 1975
Steel stringer bridge over Youghiogheny River on Sr 0381
Open to traffic

Yukon River Bridge (North Slope Borough, Alaska)
Built 1975
Bridge over Yukon River on Dalton Highway
Open to traffic

Zehnder's Covered Bridge 22-73-02 (Saginaw County, Michigan)
Built 1979
Town lattice truss bridge over Cass River on Covered Bridge Lane
Open to traffic