List of Interstate Highways in Iowa
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Highway markers for I-80, I-380, and I-35 Bus. Loop
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| System information | |
|---|---|
| Formed: | August 14, 1957 |
| Highway names | |
| Interstates: | Interstate X (I-X) |
| Business Loops: | Interstate X Business (I-X Bus.) |
| System links | |
Interstate Highways in Iowa form a network of freeways that cross the state.
I-29 crossing over the mouth of the Floyd River
I-35 approaching exit 182
Exit 68 to Iowa Highway 5 on I-35 south of West Des Moines
The Interstate 74 Bridge carrying I-74 across the Mississippi River
I-80 in western Iowa near Walnut
Traffic congestion on I‑35 / I‑80 during the Iowa flood of 2008
I‑235 crossing the Des Moines River in Des Moines, Iowa
The Edna M. Griffin Memorial Bridge carrying I‑235 across the Des Moines River
The I‑480 bridge over the Missouri River between Council Bluffs, Iowa and Downtown Omaha, Nebraska
I‑280 crosses the Mississippi River over the Baker Bridge.
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