Upper Iowa River Bridge
U.S. National Register of Historic Places
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Location	Mays Prairie Rd. over the Upper Iowa River
Nearest city	Dorchester, Iowa
Coordinates	43°25′57″N 91°24′43″W / 43.43250°N 91.41194°W / 43.43250; -91.41194
Built	1914
Built by	Clinton Bridge and Iron Works Chambers and Dobson
Architectural style	Pratt truss
MPS	Highway Bridges of Iowa MPS
NRHP reference No.	98000772[1]
Added to NRHP	May 15, 1998

The Upper Iowa River Bridge, also known as the Hartley Bridge, is a historic structure located southeast of Dorchester, Iowa, United States. It spans the Upper Iowa River for 122 feet (37 m).^[2] Allamakee County built the first permanent bridge at this location around 1870. By the early 1910s it had deteriorated to the point of needing to be replaced, and it was removed in 1913. At the time this was on the main road between Dorchester and New Albin. Chambers and Dobson of New Hampton, Iowa was awarded the $2,585 to build the concrete superstructure. The Clinton Bridge and Iron Works of Clinton, Iowa fabricated and erected the Pratt truss structure for $3,490.^[2] It was completed in July 1914, and was one of the last bridges erected in the state before the Iowa State Highway Commission standardize bridge designs for through truss bridges.^[2] It was listed on the National Register of Historic Places in 1998.^[1]

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