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County engineer lays out safety measures for Canfield‑Butte intersection; double stop signs, striping to be installed
Summary
After a fatality and public concern about the Canfield and Butte intersection, the county engineer presented crash data and recommended immediate low‑cost changes — four 36‑inch LED stop signs, additional stop‑ahead signage, and striping — and said more extensive options will await further study.
Black Hawk County’s engineer briefed the board July 1 on crash data and near‑term safety measures for the Canfield and Butte Road intersection, which ranked among the county’s top five intersections by crash rate over the prior 10 years.
Kathleen Klis, county engineer, said the county requested a road safety audit that included state traffic‑safety staff, local law enforcement and technical assistance personnel. The audit recommended several spot improvements, and Klis told supervisors the county will install doubled 36‑inch LED stop signs (one on each side of the stop bar on the north and south approaches), additional stop‑ahead signs and improved skip‑stripe pavement markings to tighten the intersection’s visual footprint. Klis said crews expected to install the signing and marking work within a week or two after the holiday.
Klis also outlined the county’s approach to prioritizing intersection work: examining 10 years of DOT crash data, looking at millions of entering vehicles to produce crash‑rate rankings, and treating corridor improvements separately from spot intersections. She said Highway 63 at Cedar Wapsi has a higher crash metric and is under study by the Iowa DOT and its consultants; the county will await that study before making larger changes there.
Why it matters: the county emphasized layered interventions — engineering, enforcement and education — to reduce crashes. Supervisors discussed enforcement challenges tied to distracted driving and noted that some measures, such as four‑way stops or roundabouts, require further traffic studies before adoption.
