Safety bulkhead in south heading of tunnel during construction, Waterworks Park, Detroit water supply system
Description:
View of safety bulkhead in 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. 76. Date: 2-23-31. Photo by Manning Brothers." Typed on back: "Safety bulkhead in south heading of 14 ft. tunnel. Placed at south of south stop-log shaft at north end of curve. Purpose to provide a place behind which men may retreat in case of trouble when going under canal."
