MARSHALLTOWN, Iowa – July 2, 2026 – If you are driving on U.S. 6 in Jasper County in the coming months you will need to be aware of a culvert replacement project that could slow down your trip beginning at 6 a.m. Friday, July 10, until October 2026, weather permitting, according to the Iowa Department of Transportation’s (DOT) Marshalltown construction office.
When the roadway is closed, drivers will be detoured around the work zone using Iowa 14, Interstate 80, and Iowa 146.
Changes could be made to detour routes during the construction season. Please visit 511ia.org for current detour route information before traveling through this construction zone and pay attention to detour signing and messages boards while driving.
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 Iowa DOT’s 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.
Subscribe to Your 511 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 more information about this project, contact Dustin Skogerboe, Iowa DOT Marshalltown construction office, at 641-752-4657 or dustin.skogerboe@iowadot.us.
1308 Iowa Ave. W.
Marshalltown, IA 50158