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Pioneer Mountains Scenic Byway frost heave prevention and results

April 1, 2016

Abstract The Pioneer Mountains Scenic Byway, located about 30 miles (48km) west of Dillon, Mont., seasonally experiences frost heave problems over a 20-mile (30-km) stretch of road. The road is closed to winter traffic and typically re-opens in May. Longitudinal full-section depth cracks form during the spring thaw. One location, in the high alpine meadows …