Black Hawk County imposes temporary 55 mph limit on paved county roads while engineers study Senate File 378 effects

Jun 30, 2026

Following state action that raises default paved‑road speed limits to 60 mph on July 1, the board approved a temporary 55 mph countywide limit on paved roads pending engineering and traffic studies; the county engineer and sheriff's office said the pause is needed to review signage, sight‑distance and other safety infrastructure.

The full story

The Black Hawk County Board of Supervisors on June 30 approved a temporary county resolution keeping paved secondary county roads at 55 mph while county engineers and the sheriff’s office evaluate where a 60 mph posted limit is safe and appropriate under Senate File 378.

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