(605 ILCS 5/4-405)
(from Ch. 121, par. 4-405)
The Department shall maintain all highways in the State highway system
either with its own forces or pursuant to an agreement or contract entered
into pursuant to this Code.
In the course of its other maintenance work, the Department shall paint
and maintain a line not less than 2 1/2 inches in width on the edges of
uncurbed roadways of all State highways having an Illinois or U.S. route
traffic marking and which carry an average daily traffic of more than 1000
vehicles. The Department may paint and maintain such lines on such other
State highways as it deems desirable.
(Source: P.A. 78-283