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Title
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Gateway Bridge crossing the Mississippi River, Clinton, Iowa, South Bridge
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Description
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Carrying U.S. Highway 30 connecting Illinois and Iowa, the beautiful bridge was opened to traffic on June 30, 1956. Built at a cost of $6,800,000, the main steel bridge is 4,150 ft long, overall length including approaches is 9,600 ft. The roadway is 72 ft. above normal river level and the steel towers are 175 ft. above water level. --verso. Number 6C-K1473. Series K-10.
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Date Created
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1956
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PID
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grinnell:14429
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Title
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Government Bridge and Roller Dam, Davenport, Iowa, Arsenal Bridge, Lock and Dam No. 15
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Description
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An aerial view of the Government Bridge and the Lock and Dam No. 15 with the city of Davenport, Iowa, in the background. The Lock and Dam No. 15, completed in 1933, spans the Mississippi River between Rock Island, Illinois and Davenport, Iowa. It is the largest roller dam in the world, its dam is 1,203 feet (366.7 m) long and consists of nine 109 feet (33.2 m) non-submersible, non-overflow roller gates and two 109 feet (33.2 m) non-submersible overflow roller gates. It was designed solely to form pools to make commercial river traffic possible and is not situated perpendicular to the flow of the river. It is also one of the few roller dams that features an auxiliary lock. It is listed in the National Register of Historic Places. 1940 postmark. Number 66735.
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Date Created
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1940
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PID
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grinnell:16954
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Title
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Looking west along the Walnut Street Bridge, Des Moines, Iowa
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Description
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Looking northwest at the closed-spandrel arch bridge over the Des Moines River. The bridge was built in 1911 by John Wheeler Construction Company of Geneva, Illinois and Marsh Engineering Company of Des Moines, Iowa. It's total length is 503.3 feet. Verso says: Des Moines, Iowa Looking West Along Walnut St. Bridge in Foreground, Locust St. Bridge in Background Showing Library, Post Office, Equitable Bldg., Television Towers, Hotels Kirkwood, Savery and Brown, YMCA, and Insurance Exchange Buildings. Number 70792.
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Date Created
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1945
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PID
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grinnell:18900