Parsons, Klapp, Brinckerhoff & Douglas

of New York City, New York
Detroit-Windsor Tunnel (Wayne County, Michigan)
Built 1930
Tunnel under Detroit River on US I-375/M-10 & Former Canada 3B in Windsor, Ontario Canada and Detroit
Open to traffic

MC - Cape Cod Canal Railroad Bridge (Barnstable County, Massachusetts)
Design, 1935
Through truss vertical lift bridge over Cape Cod Canal on the Mass Coastal Railroad at Buzzards Bay
Open to traffic