Favorite this☆ Worker sanding concrete pavement, Ambassador Bridge during construction Description: View of a worker sanding concrete pavement, Ambassador Bridge during construction. Printed on front: "156, 7-20-29. Detroit River Bridge, McClintic-Marshall Co., engineer & contractor." Stamped on back: "American Commercial Photo Co., 25 Parsons St., Detroit, Mich. Glendale 7152." Details Resource ID: bh024501 Creator: American Commercial Photo Co. Subject: Ambassador Bridge (Detroit, Mich., and Windsor, Ont.) Suspension bridges--Design and construction Concrete roads--Design and construction Road construction workers McClintic-Marshall Construction Company Photographers--Michigan--Detroit Photographic prints Date Issued: 1929-07-20 Format: 1 photographic print mounted on fabric ; 7.5 x 9.5 in. Member of: Burton Historical Collection Filing Location: D/Bridges-Ambassador-Construction-July/August 1929 Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.