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Best Practices for Dust Control in Minnesota
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2024-11-01
[PDF-548.75 KB]
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Abstract:More than 50 percent of the road network in the United States are gravel roads, underscoring their crucial role in the transportation system. However, one of the drawbacks and biggest complaints of gravel roads is the dust they generate when vehicles pass, causing inconvenience for residents from dust that settles on homes, yards, and parked cars. Dust can also reduce the safety for drivers due to impaired vision. To control the dust on gravel roads, local agencies apply various dust suppressants on their roadways. Over the years the Local Road Research Board (LRRB) has produced a few documents addressing dust control of aggregate roads in Minnesota: • Aggregate Roads Dust Control: A Brief Synthesis of Current Practices (2013) • Best Practices for Dust Control on Gravel Roads (2009) • Evaluation of Gravel Stabilizer Used on Gravel Roads and Gravel Shoulders (active, 2026 completion date) Recently, counties have received calls from residents inquiring about environmental, health and corrosion concerns with dust and dust control suppressants. This document investigates these additional questions as well as reviews and updates previous LRRB reports on dust control.
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