Workers constructing north stop log shaft, Waterworks Park, Detroit water supply system
Description:
View of workers constructing north stop log shaft, 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. 19. Date: 6-30-30. Photo by Manning Brothers." Typed on back: "North stop log shaft. Forms and reinforcing steel in place for first section of concrete."