U.S. Route 52 in Iowa

U.S. Highway 52
Route information
Maintained by Iowa DOT
Length:	166.409 mi (267.809 km)
Existed:	1935 – present
Major junctions
South end:	US 52 / IL 64 at Savanna, Ill.
	US 67 near Sabula US 61 / US 151 at Dubuque US 18 at Postville
North end:	US 52 near Burr Oak
Location
Counties:	Jackson Dubuque Clayton Allamakee Winneshiek
Highway system
United States Numbered Highway System List Special Divided Replaced Iowa Primary Highway System Interstate U.S. State Secondary Scenic ← Iowa 51 Iowa 56 →

Iowa Highway 946
Location:	Dubuque
Length:	0.927 mi (1.492 km)
Existed:	1990s–present

U.S. Highway 52 (US 52) is a 166-mile-long (267 km) United States highway in northeast Iowa. The route begins at the Savanna–Sabula Bridge over the Mississippi River between Sabula and Savanna, Illinois. From Sabula, it heads north along the Mississippi towards Bellevue and Dubuque. At Dubuque, US 52 briefly shares an expressway with U.S. Route 61 and U.S. Route 151.

North of Dubuque, the route follows the course of the river and turns to the west. At Luxemburg, it turns to the north towards Guttenberg. It then heads northwest where it overlaps U.S. Route 18 for 15 miles (24 km). At Calmar, US 52 turns to the north towards Decorah. US 52 crosses into Minnesota north of Burr Oak.

Despite its even number, US 52 is signed as a north–south route. According to the layout of the U.S. Highway System, even-numbered routes are generally signed as east–west routes.

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Wikipedia