Iowa DOT News

Road construction on Iowa 1/Iowa 78 in Washington County begins on Wednesday, March 20

FAIRFIELD, Iowa – March 8, 2024 – If you travel on Iowa 1/Iowa 78 in Washington County you need to be aware of an upcoming road construction project that may slow down your trip.

Beginning on Wednesday, March 20 until late August, weather permitting, Iowa 1/Iowa 78 from the entrance to Lake Darling to the west side of Brighton will be closed so crews can replace a culvert and reconstruct the road.

While the roadway is closed, you will follow marked detour routes using Iowa 1, Iowa 92, Washington County roads W-38 and G-38, Keokuk County Road W-15, and Oak Street through Richland (see map). Access to Lake Darling State Park and private properties within the work zone will be always maintained during the project.

Help keep everyone on the road safer. 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, you should stay alert, allow ample space between vehicles, and wear seat belts. 

The latest traveler information is available anytime through our 511 system. Visit; call 511 (within Iowa) or 800-288-1047 (nationwide); stay connected with 511 on Facebook or Twitter (find links at; or download the free app to your mobile device. 

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For general information about this project contact, Iowa DOT Fairfield construction office, at 641-469-4062 or [email protected]


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