Favorite this☆ Tunnel heading, Waterworks Park, Detroit water supply system Description: View of tunnel heading, Waterworks Park, Detroit water supply system. Handwritten on front: "Tunnel heading. Relocation of intake for coal shed bridge. 1908-11-17." Details Resource ID: bh017249 Subject: Tunnels--Michigan--Detroit Detroit (Mich.). Department of Water Supply Waterworks--Michigan--Detroit Photographic prints Date Issued: 1908-11-17 Format: 1 photographic print mounted on stock ; image 7 x 7.75 in. Member of: Burton Historical Collection Filing Location: MS/Detroit Archives. Water Board. Waterworks Park. Miscellaneous, 1908-1909, 1 of 3, 12:1 Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.