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Iowa DOT Updates Southwest Mixmaster Overnight Closures: October 23 Closure Canceled, More Set for October 25–27

Friday, October 23, 2026 · States · GSM News

The Iowa Department of Transportation's District 1 office issued an updated notice on October 22 adjusting the schedule of overnight construction closures around the Southwest Mixmaster in southwest Des Moines — the interchange of I-35, I-80 and I-235 — and advised drivers passing through West Des Moines to plan ahead.

Under the updated schedule, four ramps were closed from 9 p.m. Thursday, October 22, to 5 a.m. the next morning: westbound I-235 to southbound I-35, northbound I-35 to westbound I-235, westbound I-235 to northbound I-35, and westbound I-235 to 50th Street. The closure originally planned for Friday night, October 23, has been canceled, so Friday-night travel will not be affected by this round of work. Next, the eastbound Valley West Drive entrance and exit ramps will close from 9 p.m. to 5 a.m. on Sunday, October 25, and Monday, October 26; and from 10 p.m. to 4 a.m. on October 26 and 27, eastbound I-235 will be fully closed between the southbound I-35 exit ramp and the westbound I-80/southbound I-35 entrance ramp.

The DOT reminded drivers that traffic fines at least double in work zones and urged them to slow down, keep their distance and buckle up. Current road conditions are available at 511ia.org, by calling 511 in-state or 800-288-1047 nationwide, and through the 511 mobile app, with email and text alerts also available. The update changes only the closure schedule, not the construction work itself.

Published by GSM · USA (original Chinese edition)

Photo: 图:得梅因市区与河流。摄影:Carl Wycoff from Nevada, USA,CC BY 2.0(Wikimedia Commons)。Photo: Downtown Des Moines, Iowa. Photo by Carl Wycoff from Nevada, USA, CC BY 2.0 (Wikimedia Commons).

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