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Home > Iowa > Rock Rapids vicinity > Melan Arch Bridge, Emma Slater Park (Moved from Dry Run Creek), Rock Rapids, Lyon County, IA



B&W Photos
Elevation From South
HB407303
Elevation From South
Barrel View From West
HB407304
Barrel View From West
3/4 View From Southwest
HB407305
3/4 View From Southwest
Detail Of Southwest Corner, From Southeast
HB407306
Detail Of Southwest Corner, From Southeast
Detail Of Builders Plate, From North
HB407307
Detail Of Builders Plate, From North


Data Pages


Drawings


Photo Caption Pages


Item Title


Location
Emma Slater Park (Moved from Dry Run Creek), Rock Rapids vicinity, IA

Find maps of Rock Rapids, IA


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER IA-15
Unprocessed field note material exists for this structure (N214).
Building/structure dates: 1893 initial construction
National Register Number: 74000797
Significance: One of the first reinforced concrete bridges built in the United States, it is located in Lyon County, 4-1/2 miles southeast of Rock Rapids, Iowa. It was built in 1893 by Frederick Von Emberger, famous Austrian designer, who was at that time the official representative of Joseph Melan, Vienese engineer. Melan was granted an American patent for his method of bridge reinforcement using concrete. The span is thirty feet. The rise of the arch is three feet and the roadway sixteen feet. The thickness of the arch at the crown is six inches. The reinforcing is of the style known as the Melan System and, in this case, consists of five 4" I-beams. The side walls are faced with Sioux Falls jasper. The hand rail is of gas pipe. The cement used was imported from Germany and cost $3.25 per barrel. The mixture of one part cement to two parts sand to four part broken jasper. The bridge cost $830.00.

Related Names
Von Emberger


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. ELEVATION FROM SOUTH
2. BARREL VIEW FROM WEST
3. 3/4 VIEW FROM SOUTHWEST
4. DETAIL OF SOUTHWEST CORNER, FROM SOUTHEAST
5. DETAIL OF BUILDERS PLATE, FROM NORTH


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