(605 ILCS 5/4-206)
(from Ch. 121, par. 4-206)
When advisable to serve traffic needs, any State highway route
in or through a municipality may be relocated upon other streets in the
municipality and the jurisdiction, maintenance and control of the streets
upon the abandoned route shall be assumed by the city, town, village, park
district or other municipal corporation. If any municipal corporation
notifies the Department that it is about to construct a subway for railway
or motor vehicle transportation along and under any street upon which any
State highway route is located and that its use as a State highway route
will interfere with such construction, the Department shall relocate such
route or such portion thereof as is necessary to prevent such interference.
Except as allowed by Sections 4-407, 4-408 and this Section no State
highway route shall be relocated except to better serve traffic demands and
the route abandoned must be left in reasonable condition for traffic.
(Source: Laws 1959, p. 1189