North heading of tunnel during construction, Waterworks Park, Detroit water supply system
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."