Rock surface in tunnel, Lake Huron Station, Detroit water supply system
Description:
View of rock surface in tunnel, Lake Huron Station, Detroit water supply system. Printed on front: "Detroit Metropolitan Water Services. HUD Project no. WS 289. Contract no. LH-6B. Low lift shaft and tunnel. Lake Huron Station. Greenfield & Associates, contractors. Photo no: 121. Date: 7-2-70. Photo by Don & Pearl Stickney, Plymouth, Mich." Handwritten on back: "121. Close up of rock after spalling at shear plane."