Manchester, Iowa – April 3, 2025 – If you drive on southbound I-380 and use the exit or entrance ramps at Boyson Road (exit 25) in Hiawatha you need to be aware of an upcoming exit closure that may slow down your trip.
Beginning on Tuesday, April 8, until Memorial Day, weather permitting, crews will close the exit and entrance ramps so work can begin on the Boyson Road interchange project.
The southbound entrance ramp will remain closed until July 4.
When Exit 25 is closed you will be directed to exit on Blairs Ferry Road and follow a marked detour route that leads you east on Blairs Ferry Road to Center Point Road, then north on Center Point Road to reach Boyson Road.
When the southbound entrance ramp will be detoured to Center Point Road, then south to Blairs Ferry. Then enter SB I-380 from Blairs Ferry.
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 on our 511 Social Media Sites page); 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.
For general information about this project, contact Hugh Holak, Iowa DOT Manchester construction office, at 563 927-2397 or hugh.holak@iowadot.us.