Charles Macdonald

Atwells Avenue Bridge (Providence County, Rhode Island)
Built 1875
Pony truss bridge over Woonasquatucket River on Atwells Avenue, oldest surviving metal bridge in the state.
Open to traffic

Walkway Over The Hudson (Dutchess County, New York)
Designer, 1888
Cantilevered deck truss bridge over the Hudson River between Poughkeepsie and Highland
Open to pedestrians