Timbering of south heading of tunnel during construction, Waterworks Park, Detroit water supply system
Description:
View of timbering of south 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. 91. Date: 3-30-31. Photo by Manning Brothers." Typed on back: "14-ft. tunnel south heading. View of timbering in last 18 ft. of tunnel at screen chamber and complete tunnel joining this section. Concrete forms still in place. Note copper water stop."
