Work to repair a power line that feeds three sets of traffic lights on U.S. Highway 30 led to two crashes Wednesday morning, according to police reports.
The crashes happened within a span of 20 minutes at the highway's intersection with Quint Avenue on the city's west side.
The first, at about 8:40 a.m., happened while workers were preparing to cut power to the lights but already had placed temporary stop signs at the intersection.
Monica Nellesen, 65, of Carroll, was eastbound in a car when she entered the intersection with a green light but then noticed the stop sign and braked hard. Her car was struck in the rear by a pickup truck driven by Jason Verschoor, 49, of Odebolt.
Nellesen was not cited for a traffic violation because of the conflicting traffic controls, a crash report said. No one was injured.
Then at about 9 a.m., Daniel Clark, 63, of Glidden, was westbound on Highway 30 and saw a temporary stop sign late and braked hard. He also was struck from behind by a compact sport-utility vehicle driven by Kelsey Powell, 28, of Carroll.
Again, no one was injured.
The utility work stemmed from construction near Dupaco Community Credit Union on Monday morning that damaged an underground electrical line about 11:30 a.m.
MidAmerican Energy restored power to the traffic signals Monday in about two hours. Workers sought to make further repairs to the line Wednesday.
Construction in the area has damaged the lines twice, said Randy Krauel, public works director for Carroll.