National Register of Historic Places

Melan Bridge

Rock Rapids, Lyon County, Iowa
Listed
October 17, 1974
Type
Structure
Period
Industrial
Ref No.
74000797

About this property

The Melan Bridge is located in Emma Sater Park on the east side of Rock Rapids, Iowa, United States. The 30-by-16-foot (9.1 by 4.9 m) structure is believed to be the third reinforced concrete arch span built in the country. Austrian engineer Josef Melan developed a new system of concrete reinforcement for bridge construction in the early 1890s. A fellow Austrian, Fritz von Emperger, introduced the system in the United States, and obtained a patent for it in 1893. Von Emperger designed this bridge the same year to span a crossing over Dry Creek south of Rock Rapids. John Olsen, a builder from Rock Rapids, was contracted to build the structure. William S. Hewett of Minnesota was the construction supervisor. The cement for the bridge was imported from Germany for $3.25 per barrel. It was mixed with sand and crushed jasper. The reinforcing is composed of five 4-inch (10 cm) beams that are embedded in a concrete rib that narrows to 6 inches (15 cm) at the crown. The spandrels are faced with Sioux Falls Jasper. The total cost for the project was $830. The narrow roadway made the bridge unfit for automobile traffic, and it was removed in the early 1960s. Due to local public sentiment, the county and the state highway commission moved the historic structure to the park in 1964. It was listed on the National Register of Historic Places in 1974. The Melan Bridge has been featured in the Cornell Civil Engineer, Modern Concrete Magazine, Concrete Industry News, and The Central Contractor. Because of its significance and authenticity, a model of the bridge has been on display at the Smithsonian Institution in Washington, D.C.

Location

Rock Rapids, Lyon County, Iowa
43.43021, -96.15553

Categories

ENGINEERING
National Register nomination ›
Sources

Property data from the National Register of Historic Places, National Park Service (public domain).

Description adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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Nearby Historic Sites

Burlington, Cedar Rapids, and Northern Railroad-Rock Rapids Station, Railroad Track and Bridge
Industrial
0.6 mi
Lyon County Courthouse
Industrial
0.6 mi
First Methodist Church
Industrial
0.8 mi
Reynolds, Charles B., Round Barn
Industrial
8.8 mi
Duncan-Duitsman Farm Historic District
Listed
11.3 mi

Questions about this property

When was Melan Bridge listed on the National Register?

Melan Bridge was listed on the National Register of Historic Places on October 17, 1974.

What type of historic resource is Melan Bridge?

Melan Bridge is classified as a structure in the National Register of Historic Places.

What is the period of significance for Melan Bridge?

The period of significance for Melan Bridge is recorded as the industrial era.

Can I research the history near Melan Bridge?

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