Iowa Highway 3

Iowa Highway 3 (Iowa 3) is a state highway that runs from east to west across the state of Iowa. It is the longest state highway in Iowa, at 323 miles (520 km) long. Iowa 3 begins at the South Dakota state line where it continues as South Dakota Highway 50 and ends at the Northwest Arterial at the Dubuque city limits. It is designated the American Veterans Memorial Highway for its entirety. It is located approximately halfway between Interstate 80 and Interstate 90.

Iowa Highway 3

American Veterans Memorial Highway
Iowa 3 highlighted in red
Route information
Maintained by Iowa DOT
Length323.102 mi (519.982 km)
Existed1945–present
Major junctions
West end SD 50 west of Westfield
Major intersections
East endNorthwest Arterial at Dubuque
Location
CountryUnited States
StateIowa
Counties
Highway system
Iowa 2 Iowa 4
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