Tunnel forms, Waterworks Park, Detroit water supply system
Grab
Description
View of tunnel forms, 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. 52. Date: 11-12-30. Photo by Manning Brothers." Typed on back: "Section of forms for 15 ft. 6" tunnel."