Built during 1780s

John Seabrook Plantation Bridge (Charleston County, South Carolina)
Built 1782
Abandoned arch bridge over Branch of Wadmalaw River on Abandoned Road
Derelict/abandoned

Trinity Lane Bridge (Montgomery County, Pennsylvania)
Stone arch bridge over Gulph Mills Creek on Trinity Lane
Open to traffic

Uncle Tim's Bridge (Barnstable County, Massachusetts)
Built 1783; Restored 2008
Timber stringer bridge over Duck Creek
Open to pedestrians only

Valley View Ferry (Jessamine County, Kentucky)
Ferry Started 1785 by John Craig under charter from the Virgina Legislature. Oldest business in Kentucky.
Ferry across Kentucky River on KY 39
Open to traffic