Sinking caisson of construction shaft for tunnel, Waterworks Park, Detroit water supply system
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."