Parsons, Brinkerhoff, Hall & Macdonald

of New York City, New York
Arroyo Colorado Bridge (Cameron County, Texas)
Built 1953
Vertical lift bridge over Arroyo Colorado on FM 106 in Rio Hondo
Open to traffic

George P. Coleman Memorial Bridge (York County, Virginia)
Engineer, 1952
Swing bridge over York River on US 17 in Gloucester Point
Open to traffic

Walnut Street Bridge (New Castle County, Delaware)
Built 1954-1957
Bascule bridge over Christina River on Walnut St. in Wilmington
Open to traffic