Forced air duct, Springwells Station treatment plant during construction, Detroit water supply system
Description:
View of forced air duct for boiler, Springwells Station treatment plant during construction, Detroit water supply system. Printed on front: "City of Detroit. Department of Water Supply. Springwells Station. Power plant piping systems. Contract P.C. 81. Freyn Brothers of Mich. Inc., contractors. 85% magnesia blocks in place on forced air duct, boiler #2. No. 26. Date: 4-15-32. Photo by Manning Brothers."