North heading of tunnel during construction, Waterworks Park, Detroit water supply system
Grab
Description
View of north heading of 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. 89. Date: 3-30-31. Photo by Manning Brothers." Typed on back: "14 ft. tunnel, north heading. View from Sta. 51+00 during cleaning up. Core drilling machine in background at Sta. 54+52."