North stop log shaft excavation, Waterworks Park, Detroit water supply system
Grab
Description
View of north stop log shaft excavation, 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. 106. Date: 4-29-31. Photo by Manning Brothers." Typed on back: "14 ft. tunnel; north stop log shaft, excavating transition between shaft and 12 ft. tunnel stub."