Tunnel forms, Waterworks Park, Detroit water supply system
Description:
View of ribs for forms for transition section of tunnel at foot of stop log shafts, 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. 16. Date: 6-16-30. Photo by Manning Brothers." Typed on back: "Fourteen foot tunnel. Ribs for forms for transition section of tunnel at foot of stop-log shafts."