INTERSTATE 280 (ILLINOIS-IOWA)

'Interstate 280' (abbreviated 'I-280') is a 26.95 mile-long highway that makes up the western and southern portions of the beltway around the Quad Cities of Illinois and Iowa. The freeway starts at I-80 near Davenport, Iowa and ends at I-80 near Colona, Illinois; its eastern part runs concurrent with I-74 to get back to I-80. I-280 forms the southern part of a circle around the Quad Cities as well as forming part of a bypass (along with I-80) for U.S. Highway 61 around Davenport.

Contents

Route description

Iowa

Illinois

History

Exit list

Iowa

Illinois

References

Route description

Interstate 280 runs through the following states:

Iowa

In Iowa, I-280 runs along a mostly rural area for 9.5 miles (15.3 km). The portion in Iowa begins at the junction with I-80 on the northwest side of Davenport, to the I-280 Bridge over the Mississippi River into Illinois. This segment runs mostly north-south, before turning southeast towards the Mississippi River.

Illinois

In Illinois, I-280 runs for about 18 miles (29 km). It runs southeast from the I-280 Bridge to Milan, where it parallels the Rock River. I-280 joins with I-74 at the Quad Cities International Airport; this concurrency continues for 9.4 miles (15.1 km) before terminating at the I-74/I-80 interchange.

History

Interstate 280 has been at the center of a few debates regarding its routing. In the early 1990s, the state of Illinois suggested, via AASHTO and ISTEA hearings, swapping the I-80 and I-280 designations around the Quad Cities. This was challeneged by the state of Iowa, and the idea was dropped.
One of the reasons Illinois pursued the matter was due to the configuration of the eastern terminus of I-280; as a simple cloverleaf interchange, through I-80 traffic (along the north and east branches) was required to exit on both directions. Thru I-74 traffic (along the west and south branches) is also required to exit on both directions. I-280 runs due west from the interchange.

Exit list

Iowa

County	Location	Mile	# Mapquest	Destinations	Notes
Scott	Rural Davenport	0.0	None	Interstate 80 — Des Moines, Chicago	Western terminus of I-280.
		1	1	U.S. Route 6 east, Scott County Road F58 west, Kimberly Road — Walcott
		4	4	Scott County Road F65, Locust Street/160th Street — St. Ambrose University
		6	6	U.S. Route 61, West River Drive — Muscatine
		8	8	Iowa Highway 22, Rockingham Road — Buffalo

Illinois

County	Location	Mile	# Illinois Highway Ends - I-280 Sarjeant, Charles	Destinations	Notes
Rock Island	Rock Island	11	11A-B	Illinois Route 92 — Andalusia, Rock Island
	Milan	15	15	Airport Road — Milan, U.S. Route 67
	Moline	18	18A-B	Interstate 74 U.S. Route 6 — Moline, Illinois, Quad City Airport	Eastbound I-74 overlaps I-280 eastbound, leaving the intersection eastbound. U.S. 6 crosses north-south through intersection. Westbound I-74 joins with U.S. 6 westbound, leaving the intersection northbound. Also goes to U.S. Route 150.
Henry	Colona	26.95	None	Interstate 74 — Peoria Interstate 80 — Des Moines, Iowa, Chicago	Eastern terminus of I-280. I-74 westbound overlaps I-280. I-74 forms southern portion of interchange, while I-80 forms north and eastern portions of interchange.

References

1. Route Log- Auxiliary Routes of the Eisenhower National System of Interstate and Defense Highways - Table 2