Grout hole in tunnel, Lake Huron Station, Detroit water supply system
Grab
Description
View of grout hole in tunnel, Lake Huron Station, Detroit water supply system. Printed on front: "Detroit Metro Water Department. Contracts LH-6B & LH-6D. Raw water intake, tunnel & shafts. Lake Huron Project. Grout hole mark toward west Sta. 396+85. Photo no. H10N1. Date: 12-14-71. Win Brunner, photographer."