Coal canal, Waterworks Park, Detroit water supply system
Description:
View of coal canal showing piling protecting compressed air line, Waterworks Park, Detroit water supply system. Crane in background. Printed on front: "City of Detroit. Department of Water Supply. Land tunnel and structures. Contract RC 12. Dravo Contracting Co., contractors. Photo no. 22. Date: 6-30-30. Photo by Manning Brothers." Typed on back: "Coal canal showing piling protecting the compressed air line crossing on bottom of canal to stop-log shafts on the west side of canal."