CSS is relatively new to the State of Illinois. It became official policy for the Department of Transportation in August of 2005. The previous sections of Route 51 (Panal on north to Rockford) did not utilize CSS.
US 51 Environmental Impact Statement
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CSS is relatively new to the State of Illinois. It became official policy for the Department of Transportation in August of 2005. The previous sections of Route 51 (Panal on north to Rockford) did not utilize CSS.