Safety bulkhead in south heading of tunnel during construction, Waterworks Park, Detroit water supply system
Grab
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."