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Table 5. Weather Event: FREEZING RAINSTORM <br /> Calcium Magnesium Acetate 25% <br /> Magnesium Chloride 27% <br /> Pre-wet Aggregate/Magnesium Chloride <br /> ~isl is/ ~ isl is/ <br />Above 32 F, *Monitor pavement temperature closely <br /> <br /> steady and N/R N/R See N/R N/R See *Treat icy patches if needed w-ith pre-wet <br /> rising comments comments aggregate as needed for traction <br /> enhancement <br /> 32 F, <br />or below is N/R N/R Apply N/R N/R Reapply *Apply pre-wet aggregate for traction <br />imminent enhancement <br />20 to 32 F, <br />remaining in N/R N/R Apply N/R N/R Reapply *Apply pre-wet aggregate for traction <br />range enhancement <br />15 to 20 F, <br />remaining in N/R N/R Apply N/R N/R Reapply *Apply pre-wet aggregate for traction <br />range enhancement <br />Below 15 F, <br />steady or N/R N/R Apply N/R N/R Reapply *Apply pre-wet aggregate for traction <br />falling enhancement <br /> <br /> CHEMICAL APPLICATIONS: These application rates are starting points. Local experience should refine these <br /> recommendations. Time chemical applications to prevent deteriorating conditions or development of packed and bonded snow-. <br /> Monitor temperature and humidity to determine application timing. <br /> <br /> PLOWING: Before applying any ice control chemical, the road surf:ace should be clear of as much snow- and ice as possible. <br /> <br /> CHEMICAL RATES: The recommended snow- and ice control material application rates depend on atmospheric and pavement <br /> conditions at the time of treatment and on how- these conditions are expected to change over the time period (window) between the <br /> current treatment and the next anticipated treatment. <br /> <br /> <br />