Dredge "New Jersey" approaching intake cofferdam, Detroit water supply system
View of the Dredge "New Jersey" approaching the intake cofferdam for the Detroit water supply system. Signs on boat read: "Great Lakes Dredge & Dock Co." and "Dredge New Jersey." Printed on front: "City of Detroit. Department of Water Supply. Intake system for additional supply. Intake lagoon. Contract RC-9. Dunbar & Sullivan Dredging Co., contractors. Photo no. 25. Date: 6-30-30. Photo by Manning Brothers." Typed on back: "Dredge New Jersey approaching intake cofferdam at lower end of lagoon excavation."