Interstate 880 eastbound in Neola Township, Iowa. 06/17/15
Interstate 880 in Pottawattamie County, Iowa was established by the Iowa Department of Transportation along the east-west leg of I-680. Approved by the AASHTO Special Committee on U.S. Route Numbering on October 5, 2019, the designation was meant to alleviate motorist confusion during closures of I-29 and I-680 due to flood waters from the Missouri River.3 With the need to differentiate the closures on I-29 and I-680 more accurately, communicating closures for local and regional travelers arose as an issue during the Spring 2019 flooding events. Renumbering the northern segment of I-680 as I-880 will eliminate the confusion.2
The freeway for I-880 opened to traffic in its entirety along with Interstate 80 west from U.S. 59 on December 13, 1966.4 It was marked as Interstate 80N until 1973, when it was incorporated into an extension of I-680 northeast from Crescent.
Heavy rainfall over Nebraska and South Dakota in September 2019 resulted in another round of flooding from the Missouri River. Marking the third closure of I-29 and I-680 near Council Bluffs in 2019, all lanes of I-680 between the Mormon Bridge and Interstate 29 near Crescent, Iowa, and I-29 between N 25th Street in Council Bluffs and the north split with I-680 (Exit 71) near Missouri Valley were shuttered on September 21.5,6