Sinking caisson of construction shaft for tunnel, Waterworks Park, Detroit water supply system
Grab
Description
View of sinking caisson of construction shaft for tunnel, Waterworks Park, Detroit water supply system. Workers in background. Printed on front: "City of Detroit. Department of Water Supply. Land tunnel and structures. Contract RC 12. Dravo Contracting Co., contractors. Photo no. 47. Date: 11-3-30. Photo by Manning Brothers." Typed on back: "Sinking caisson of construction shaft for 15 ft. 6" tunnel. One end of caisson loaded in effort to right it."