2008 Midwest States’ 2008 Midwest States’ Meeting Meeting

April 22-23, 2008April 22-23, 2008

IDOT 2007-2008 Statistics:

42,872 Lane Miles 1,153 Snow Routes 1,748 Trucks

836,761 Tons of Salt (5 Yr Avg. = 427,172 Tons)

Total Annual Cost = $86,111,168 (5 Yr Avg. = $39,965,844)

Blending/Injection System

Shaker Wipers

Heated Wiper Fluid

Alaska PlowAlaska Plow

14’ Plow14’ Plow

14’ Plow14’ PlowPlow Width Plow Angle/Clearing

Path

At 0° 35° 25°20°

10 8.2 9.19.4

11 9.0 10.010.3

12 9.8 10.911.3

14 11.5 12.713.2

Advantages:

Reduce the number of trips:

Reduce the # of salt application opportunities.

Saves fuel and wear on equipment.

Safer!

Less exposure to traffic

Don’t have to crowd centerline

Keep truck on the pavement

Plow without Plow without treating in first lane.treating in first lane.

Plow should be on Plow should be on the centerline.the centerline.

12’ plow will leave 12’ plow will leave approximately 1’ of approximately 1’ of unplowed pavement unplowed pavement on the outside.on the outside.

2’

Dual SpinnersDual Spinners

Increased Prewet AmountsIncreased Prewet Amounts

Increased PrewetIncreased PrewetAmountsAmounts

Weather ForecastingWeather Forecasting