Worker in tunnel during construction, Waterworks Park, Detroit water supply system
Grab
Description
View of worker in tunnel during construction, Waterworks Park, Detroit water supply system. Printed on front: "City of Detroit. Department of Water Supply. Land tunnel and structures. Contract RC 12. Dravo Contracting Co., contractors. Photo no. 69. Date: 2-6-31. Photo by Manning Brothers." Typed on back: "14-ft diameter tunnel. North heading at shaft; view of man lock and door of material lock."