Cowley Bridge (Lincoln County, Tennessee)
Built by the King Iron Bridge Co. in 1878. Placed on the National Register of Historic Places in 1983.
Bowstring through truss bridge over Elk River on West Stevens Creek Road
Open to traffic

CR 51 Bridge (Scott County, Minnesota)
Built 1878
Stone arch bridge over an unnamed creek on CR 51
Closed to all traffic

Easton Avenue Bridge (Middlesex County, New Jersey)
Built 1878; rehabilitated 2004
Stone arch bridge over Mile Run Brook on Easton Avenue in New Brunswick
Open to traffic

Fox Hollow Road Bridge (Lancaster County, Pennsylvania)
Built 1878; rehabilitated 1992
Covered bridge over Pequea Creek on Fox Hollow Road
Open to traffic

Freeport Bridge (Winneshiek County, Iowa)
Originally built 1878 by the Wrought Iron Bridge Co. over Upper Iowa River on a county road; relocated 1989
Relocated bowstring through truss bridge at Trout Run Park in Decorah
Open to pedestrians only

Harra Covered Bridge (Washington County, Ohio)
Built 1878 by Rolla Merydith
Covered bridge over South Branch Wolf Creek on TR 172
Open to pedestrians only

Harvey Railroad Bridge (Marion County, Iowa)
Built 1878 by the American Bridge Co. for the CB&Q Railroad; converted for vehicular use in 1938
Four-span wrought-iron through truss bridge over the old channel of the Des Moines River on Harvey Island Road
Open to one-lane traffic on a minimum-maintenance road

Hills Covered Bridge (Washington County, Ohio)
Built 1878 by the Hocking Valley Bridge Works (A. Borneman)
Covered bridge over Little Muskingum River on CR 333
Open to pedestrians only

Jackson Sawmill Covered Bridge (Lancaster County, Pennsylvania)
Built 1878; reconstructed 1985
Covered bridge over West Octoraro Creek on Mt. Pleasant Road (TR 696)
Open to traffic

Laughery Creek Bridge (Dearborn County, Indiana)
Built 1878 by the Wrought Iron Bridge Co.
Closed triple-Whipple through truss bridge over Laughery Creek on Old IN 56
Closed to all traffic

New Hope Covered Bridge (Brown County, Ohio)
Built 1878 by Josiah Bryant
Covered bridge over Whiteoak Creek on Bethel New Hope Road
Open to pedestrians only

Pine Street Bridge (Cortland County, New York)
Built 1878; rehabilitated 1988
Pony truss bridge over West Branch Tioughnioga River on Pine Street in Homer
Open to traffic

Raven Rock Road Bridge (Hunterdon County, New Jersey)
Built 1878
Through truss bridge over Lockatong Creek on Raven Rock Road
Open to traffic

River Street Bridge (Essex County, New York)
Built 1878
Through truss bridge over AuSable River on River Street in Keeseville
Closed to all traffic

Root Covered Bridge (Washington County, Ohio)
Built 1878 by Rolla Merydith; rehabilitated 2001
Covered bridge over South Branch Wolf Creek on CR 6
Open to pedestrians only

Stonelick Covered Bridge (Clermont County, Ohio)
Built 1878; rehabilitated 1971
Covered bridge over Stonelick Creek on Stonelick Williams Corner Road (CR 116)
Open to traffic

Stoney Creek Bridge (Montgomery County, Pennsylvania)
Built 1878
Stone arch bridge over Stoney Creek on US 202 in Norristown
Open to traffic

Sudbury River Bridge (Middlesex County, Massachusetts)
Built 1878; rehabilitated 1952
Pony truss bridge over Sudbury River on Main Street in Framingham
Closed to all traffic

Swartz Covered Bridge (Wyandot County, Ohio)
Built 1878 by Moses Weymouth; rehabilitated 1994
Covered bridge over Sandusky River on CR 130A
Open to traffic

Ten Mile Creek Bridge (Greene County, Pennsylvania)
Built 1878 by the Massillon Bridge Co.
Through truss bridge over Ten Mile Creek on TR 597
Open to traffic

Tunkhannock Creek Bridge (Wyoming County, Pennsylvania)
Built 1878
Lenticular through truss bridge over Tunkhannock Creek on PA 1029
Closed to all traffic

Upper Bluffton Bridge (Winneshiek County, Iowa)
Built 1878 by the Wrought Iron Bridge Co.
Through truss bridge over Upper Iowa River on W. Ravine Road
Open to one-lane traffic

Wall Street Bridge (Cortland County, New York)
Built 1878; rehabilitated 1988
Pony truss bridge over West Branch Tioughnioga River on Wall Street in Homer
Open to traffic

Washington Avenue Bridge (New Haven County, Connecticut)
Built 1878 by the Berlin Iron Bridge Co.; rehabilitated 1982
Lenticular pony truss bridge over Mad River on Washington Avenue in Waterbury
Open to traffic

Washington Mill Bridge (Dubuque County, Iowa)
Built 1878 by the Massillon Bridge Co.
Bowstring truss bridge over Lytle Creek on Creek Branch Lane, east of Bernard
Open to traffic on a dead-end road

Waterloo Road Bridge (Culpeper County, Virginia)
Built 1878
Through truss bridge over Rappahannock River on Waterloo Road (Route 613)
Open to traffic

Watts Mill Road Bridge (Beaver County, Pennsylvania)
Built 1878 by the West Penn Bridge Co.
Two-span pony truss bridge over Little Beaver Creek on Watts Mill Road
Open to traffic

Wawona Bridge (Mariposa County, California)
Built in 1878 this bridge is located in the south part of Yosemite National Park. Just down the hill from historic Wawona Hotel.
Bridge over South Fork of Merced River
Open to pedestrians

Weaver's Mill Covered Bridge (Lancaster County, Pennsylvania)
Built 1878
Covered bridge over Big Conestoga River on Weaverland Road (TR 773)
Open to traffic