GRIMES, Iowa – Sept. 17, 2025 – Crews from the Iowa Department of Transportation’s Grimes field office will be closing the southbound Iowa 5 ramp to southbound U.S. 65/U.S. 65 in Polk County from 9 a.m. to 3 p.m. on Thursday, Sept. 18, weather permitting, so one of the lights on the ramp can be repaired.
When the ramp is closed, you will use the loop ramps in the interchange to detour around the closure.
The Iowa DOT reminds motorists to drive with caution, obey the posted speed limit and other signs in the work area, and be aware that traffic fines for moving violations are at least double in work zones. As in all work zones, drivers should stay alert, allow ample space between vehicles, and wear seat belts.
The latest traveler information is available anytime through our 511 system. Visit 511ia.org; call 511 (within Iowa) or 800-288-1047 (nationwide); stay connected with 511 on Facebook or X (find links at https://iowadot.gov/travel-tools/iowa-511/511-social-media-sites); or download the free app to your mobile device.
It’s easy to subscribe to Your 511 and sign up to receive email/text alerts. Visit https://new.511ia.org/#login to sign up. For instructions and help with this feature, visit https://www.511ia.org/help/section/how-to-create-and-manage-a-511-account.html.
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For general questions about this project contact Scott Smyth, District 1 operations manager, at 515-986-5470 or scott.smyth@iowadot.us.