MAINE DOT - SALT APPLICATION RATES

Current Pavement	Anticipated Pavement	Precipitation:	Application Rate:	Recommended
Temperature Range (F)	Temperature Change (Higher or Lower)	Type / Severity	Pounds per Two Lane Mile	Treatment	Comments
ABOVE 32	Higher	4, 6, 8 / Light	None
	Lower	4, 6, 8/Moderate to Heavy	100 to 200	Initial Application, reapply as needed	Use Pre-wet System

	Higher	5, 6, 7, 8 / Light	200 to 300
25 to 32	Higher	5, 6, 7, 8/ Moderate to Heavy	200 to 300	Initial Application,	Pre-wet @ 6 gals per ton
	Lower	5, 6, 7, 8 / Light	200 to 400	Plow / Reapply
	Lower	5, 6, 7, 8/ Moderate to Heavy	200 to 400	as needed

	Higher	6, 7, 8 / Light	300 to 500
20 to 25	Higher	6, 7, 8/ Moderate to Heavy	300 to 500	Initial Application,	Pre-wet @ 8 gals per ton
	Lower	6, 7, 8 / Light	400 to 600	Plow / Reapply
	Lower	6, 7, 8/ Moderate to Heavy	400 to 600	as needed

	Higher	6, 7 / Light	500 to 700
15 to 20	Higher	6, 7/ Moderate to Heavy	500 to 700	Initial Application,	Pre-wet @ 10 gals per ton
	Lower	6, 7 / Light	700 to 800	Plow / Reapply
	Lower	6, 7/ Moderate to Heavy	700 to 800	as needed

15 or Below				Apply sand and Plow as needed	Monitor Pavement Temperature Switch to Salt if Rising above 15 Deg. F.

If snow is blowing off roadway and no hard pack exists, do not apply.

Weather Conditions