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ID <br />• <br />• <br />Application Rate Guidelines <br />Deicing Application Rate Guidelines <br />24' of pavement (typical two -lane road) <br />These rates are not fixed values, but rather the middle of a range to be selected and adjusted <br />by an agency according to its local conditions and experience. <br />*Dry salt is not recommended. It is likely to blow off the oad before it melts ice. <br />* *A blend of 6 — 8 gal /ton MgC12 or CaCl2 added to NaCI can melt ice as low as -10 °. <br />17 <br />Lbs /two -lane mile <br />Pavement <br />Weather <br />Maintenance <br />Salt <br />Salt <br />Dry Salt* <br />Winter Sand <br />Temp. ( °F) <br />and Trend <br />Condition <br />Actions <br />Prewetted/ <br />Pretreated <br />Prewetted/ <br />Pretreated <br />(abrasives) <br />(ti) <br />With Salt <br />With Other <br />Brine <br />Blends <br />>30° j <br />Snow <br />Plow, treat <br />intersections <br />only <br />80 <br />70 <br />100* <br />Not <br />recommended <br />Frz. rain <br />Apply chemical <br />80 —160 <br />70 —140 <br />100 — 200* <br />Not <br />recommended <br />30° j <br />Snow <br />Plow & apply <br />chemical <br />80 —160 <br />70 —140 <br />100 — 200* <br />Not <br />recommended <br />Frz. rain <br />Apply chemical <br />150 — 200 <br />130 —180 <br />180 — 240* <br />Not <br />recommended <br />25 - 30° j <br />Snow <br />Plow & apply <br />chemical <br />120 —160 <br />100 —140 <br />150 — 200* <br />Not <br />recommended <br />Frz. rain <br />Apply chemical <br />150 — 200 <br />130 —180 <br />180 — 240* <br />Not <br />recommended <br />25 - 30° j <br />Snow <br />Plow & apply <br />chemical <br />120 —160 <br />100 —140 <br />150 — 200* <br />Not <br />recommended <br />Frz. rain <br />Apply chemical <br />160 — 240 <br />140 — 210 <br />200 — 300* <br />400 <br />20 - 251 <br />Snow or <br />frz. rain <br />Plow & apply <br />chemical <br />160 —240 <br />140 — 210 <br />200 — 300* <br />400 <br />20 - 25° j <br />Snow <br />Plow & apply <br />chemical <br />200 — 280 <br />175 — 250 <br />250 — 350* <br />Not <br />recommended <br />Frz. rain <br />Apply chemical <br />240 — 320 <br />210 — 280 <br />300 — 400* <br />400 <br />15 - 20° j <br />Snow <br />Plow & apply <br />chemical <br />200 — 280 <br />175 — 250 <br />250 — 350* <br />Not <br />recommended <br />Frz. rain <br />Apply chemical <br />240 — 320 <br />210 — 280 <br />300 — 400* <br />400 <br />15 - 20° 1 <br />Snow or <br />Frz. rain <br />Plow & apply <br />chemical <br />240 — 320 <br />210 — 280 <br />300 — 400* <br />500 for frz. rain <br />0 to 15° 1-1 <br />Snow <br />Plow, treat <br />Not <br />300 — 400 <br />Not <br />500 — 750 spot <br />with blends, <br />recommended <br />recommended <br />treat as needed <br />sand hazardous <br />areas <br />- <br />< 0° <br />Snow <br />Plow, treat <br />Not <br />400 — 600 ** <br />Not <br />500 — 750 spot <br />with blends, <br />sand hazardous <br />areas <br />recommended <br />recommended <br />treat as needed <br />*Dry salt is not recommended. It is likely to blow off the oad before it melts ice. <br />* *A blend of 6 — 8 gal /ton MgC12 or CaCl2 added to NaCI can melt ice as low as -10 °. <br />17 <br />