Waddell & Hardesty

Cairo Mississippi River Bridge (Alexander County, Illinois)
Consulting Engineers, 1929
Cantilevered through truss bridge over the Mississippi River on U. S. Highway 60 / 62 between Birds Point, MO, and Cairo, IL
Open to traffic

Highlands Bridge (4th) (Monmouth County, New Jersey)
Design, 1932
Bascule bridge over Shrewsbury River on NJ 36 in Highlands
Replaced by a new bridge

John P. Grace Memorial Bridge (Charleston County, South Carolina)
Design, 1928
Lost cantilevered truss bridge over the Cooper River on US 17
Replaced by Arthur J Ravenel Bridge in 2005

Pasquotank River Bridge (Pasquotank County, North Carolina)
Designer, 1931
Bascule bridge over Pasquotank River on US 158 in Elizabeth City
Open to traffic,