Thanks to specialized precision-calibration equipment installed on Johnson County Public Works dump trucks, we are able to prevent over-salting on our roadways. This technology ensures we use exactly what is needed to melt ice—no more, no less. ❄️ Our trucks typically spread 200 lbs of salt per lane mile—a rate that scales down to roughly 12–16 ounces for an average residential driveway. 🧂 When it's snowing hard, our crews focus on treating hills, intersections and curves. If we were to treat a