Built 1978

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175th Street Bridge (Taylor County, Iowa)
Built 1978
Pony truss bridge over West Branch 1 Hundred and 2 River on 175th Street (175th St)
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

Antioch Bridge (Sacramento 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 State Route 160
Open to traffic

Bayview Bridge (Door County, Wisconsin)
Built 1978
Bascule bridge over Sturgeon Bay on WI 42/WI 57 in Sturgeon Bay
Open to traffic

Big Creek Overflow Bridge (Henry County, Missouri)
Built 1978
Steel stringer bridge over Big Creek Overflow on Mo 7 S
Open to traffic

Broadway Bridge (Replacement) (Branch County, Michigan)
Bridge
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

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

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

CSX - Cooper River Bridge (Berkeley County, South Carolina)
Built 1978
Warren through truss bridge over Cooper River on CSX RR
Open to traffic

Curtis Creek Bridge (Baltimore, Maryland)
Built 1978; rehabilitated 2003
Bascule bridge over Curtis Creek on I-695 Inner Lanes in Baltimore
Open to traffic

Deer Creek Bridge (Henry County, Missouri)
Built 1978: Rehabilitated 2010
Steel stringer bridge over Deer Creek on Mo 7
Open to traffic

Dry Brook Road Over Dry Brook Scio NY (Allegany County, New York)
Bridge
Open to traffic

Ed Hendler Bridge (Benton County, Washington)
Built 1978
Cable-stayed bridge over Columbia River on WA 397 in Kennewick
Open to traffic

Endom Bridge (Ouachita Parish, Louisiana)
Built 1978; Repalced 2003
Swing bridge over Ouachita River on LA 3280 in Monroe
Replaced by a new bridge

General W.K. Wilson, Jr. Bridge (Mobile County, Alabama)
Built 1978
Through arch bridge over Mobile River on I-65
Open to traffic

Humiston Park Swing Bridge (Livingston County, Illinois)
Built 1978
Wire suspension bridge over Vermillion River on Pedestrian Path
Open to pedestrians only

I-57 Cairo 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

Markland Dam Bridge (Gallatin County, Kentucky)
Built 1978
Girder bridge over Ohio River on KY 1039 and IN 101
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

Middle Falls Bridge (Replacement) (Washington County, New York)
Bridge
Open to traffic

MN77 Minnesota River Bridge (Hennepin County, Minnesota)
Built 1978
Steel through arch bridge over Minnesota R & Black Dog on MN 77 N& S bounds
Open to traffic

MO 79 S over BOBS CR (Lincoln County, Missouri)
Bridge over Bob's Creek on MO 79 S
Open to traffic

National Ditch Bridge (Mississippi County, Arkansas)
Built 1978
Steel stringer bridge over National Ditch on Sh 158
Open to traffic

Oregon Avenue Bridge (Taylor County, Iowa)
Built 1978
Pony truss bridge over Branch East Fork One Hundred and Two River on Oregon Avenue
Open to traffic

Parkersburg-Belpre Bridge (Wood County, West Virginia)
Built 1978
Cantilever through truss bridge over Ohio River on OH 32/WV 618 (formerly US 50)
Open to traffic

Pine River Bridge (St. Clair County, Michigan)
Built 1978
Bridge over Pine River on Riverside Avenue
Open to traffic

Rockpile Road Bridge (Sonoma County, California)
Built 1978
Warren Deck truss bridge over Warm Springs Creek on Rockpile Road
Open to traffic

Rustad Bridge (Jackson County, Minnesota)
Built 1978 replacing 100 ft. long Pratt through truss bridge with W-frame portal bracings built in 1913
Stringer bridge over Heron Lake Outlet on Cr 86
Open to traffic

Sandy Creek Bridge (Jefferson County, New York)
Built 1978
Pony truss bridge over Sandy Creek on So Skinner Road
Open to traffic

Seven Mile Creek Bridge (Cass County, Iowa)
Built 1978
Pony truss bridge over Seven Mile Creek on Wichita Road
Open to traffic

Shellpot Creek Bridge (New Castle County, Delaware)
built in 1978
Pony truss bridge over Shellpot Creek on Hay Road
scheduled for demolition

South Fork Clanton Creek Bridge (Madison County, Iowa)
Built 1978
Pony truss bridge over South Fork Clanton Creek on Limestone Avenue
Open to traffic

Turkey Creek Bridge (Cass County, Iowa)
Built 1978
Pony truss bridge over Turkey Creek on 700th Street
Open to traffic

UP - College Avenue Bridge (Madison County, Illinois)
Built 1978
Pony/through plate girder bridge over College Avenue on Union Pacific Railroad
Open to traffic

US Hwy. 14 Bridge (eastbound) (Brookings County, South Dakota)
Built 1978
Bridge over Big Sioux Rv on US Hwy. 14
Open to traffic

US18 Big Sioux River Bridge (Lyon County, Iowa)
Built 1978
Steel stringer bridge over Big Sioux River on US 18
Open to traffic

Vietnam Veterans Memorial Bridge (Ohio County, West Virginia)
Built 1978
Steel through arch bridge over Ohio River on Interstate 470
Open to traffic

West Branch Nezinscot Riber Bridge Buckfield (Replacement) (Oxford County, Maine)
Bridge
Open to traffic

West Lilac Road Bridge (San Diego County, California)
Built 1978
Beam bridge over Route 15 on West Lilac Road
Open to traffic

West Nodaway River Bridge (Cass County, Iowa)
Built 1978
Pony truss bridge over West Nodaway River on 740th Street in Massena
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