Iowa 1

Iowa Highway 1
Route information
Maintained by Iowa DOT
Length:	119.312 mi (192.014 km)
Existed:	ca. 1926 – present
Major junctions
South end:	Iowa 2 near Keosauqua
	US 34 / Iowa 163 at Fairfield Iowa 92 in Washington Iowa 22 in Kalona US 218 / Iowa 27 at Iowa City US 6 in Iowa City I-80 at Iowa City US 30 at Mount Vernon
North end:	US 151 / CR E34 near Anamosa
Location
Counties:	Van Buren Jefferson Keokuk Washington Johnson Linn Jones
Highway system
Iowa Primary Highway System Interstate U.S. State Secondary Scenic ← Iowa 965 Iowa 2 →

Iowa Highway 1 (Iowa 1) is a state highway in the U.S. state of Iowa that extends from Keosauqua to Anamosa. It travels nearly 120 miles (190 km), mainly through rich farmland and small communities. Iowa 1 provides an important link to Iowa City and the University of Iowa as it passes through campus. Portions of the route today date back to the late 1830s, when Martin Van Buren was president, making Iowa 1 one of the oldest routes in the state, pre-dating the current primary highway system by nearly eighty years. The highway was seriously damaged by the Cedar River in the Iowa flood of 2008, which closed the highway for seven weeks.

Iowa 1 begins at a T-intersection with Iowa 2 in rural Van Buren County, south of Keosauqua. It passes through gently rolling farmland for ten miles (16 km) before entering the Des Moines River valley adjacent to Lacey-Keosauqua State Park. The highway crosses the Des Moines River and enters Keosauqua along Main Street. At Broad Street, Iowa 1 turned north and headed out of town. Between Keosauqua and the southern junction with Iowa 16, the highway runs parallel to the Des Moines River, the river's course bending sharply around Keosauqua. South of Birmingham, Iowa 1 briefly overlaps Iowa 16 for two miles (3.2 km). The next seven miles (11 km) run due north passing through Birmingham, before the highway crosses Cedar Creek south of Fairfield.

...
Wikipedia