Iowa 3

Iowa Highway 3
American Veterans Memorial Highway
Iowa 3 highlighted in red
Route information
Maintained by Iowa DOT
Length:	326.163 mi (524.908 km)
Major junctions
West end:	SD 50 west of Westfield
	US 75 at Le Mars US 71 near Truesdale US 169 at Humboldt I-35 near Latimer US 218 / Iowa 27 at Waverly US 63 near Denver US 52 / Iowa 136 at Luxemburg
East end:	US 52 / US 61 / US 151 at Dubuque
Location
Counties:	Plymouth Cherokee Buena Vista Pocahontas Humboldt Wright Franklin Butler Bremer Fayette Clayton Delaware Dubuque
Highway system
Iowa Primary Highway System Interstate U.S. State Secondary Scenic ← Iowa 2 Iowa 4 →

Iowa Highway 3 is a state highway that runs from east to west across the state of Iowa. Highway 3 is the longest state highway in Iowa, at 327.81 miles (527.56 km) long. Iowa 3 begins at the South Dakota state line where it continues as South Dakota Highway 50 and ends at an interchange with U.S. Route 61 / U.S. Route 151. 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 begins at the Big Sioux River where it continues west into South Dakota as South Dakota Highway 50. 1.5 miles (2.4 km) into Iowa, Iowa 3 intersects and overlaps Iowa Highway 12 for 5 miles (8.0 km). At Akron, Iowa 3 turns east towards Le Mars. At Le Mars, Iowa 3 intersects U.S. Route 75 and, for 1 mile (1.6 km), is overlapped by U.S. Route 75 Business. Iowa 3 continues east towards Remsen and Marcus meeting Iowa Highway 140 and Iowa Highway 143 in each respective town. At Cherokee, Iowa 3 intersects U.S. Route 59 and skirts the northeastern edge of town. East of Cherokee, Iowa 3 formerly intersected the unsigned Iowa Highway 977, which served as a shortcut to southbound US 59 for westbound Iowa 3 traffic. North of Aurelia, Iowa 3 meets Iowa Highway 7. Northeast of Truesdale, Iowa 3 intersects U.S. Route 71. 25 miles (40 km) east of Truesdale, Iowa 3 intersects Iowa Highway 4 in Pocahontas. Between Pocahontas and Gilmore City, Iowa 3 meets Iowa Highway 15. Iowa 3 intersects U.S. Route 169 in Humboldt.