Planning and Building
Or Rehabilitating Highways
Each year, the Illinois Department of Transportation
(IDOT) develops a multi-year highway program which the
governor presents to the General Assembly for approval.
The program specifies improvements IDOT intends to make
on the state highway system over a five-year period.
The complexity of individual improvements will determine
the amount of time a project remains "in the stream"
from conceptualization to the beginning of construction.
The funded highway project process can involve
as many as 55 steps and take many years to finish.
A major construction project
involving a new highway,
for instance, can take from five to 20 years to complete
all the steps. (See chart that follows.)
Rehabilitating a highway may take up to five years, or
more. Completion of a project is dependent upon
reviews by various federal, state and local governmental
agencies, as well as public and private organizations,
with which IDOT cooperates to complete various work
The example on the other side of this brochure
illustrates the process for completing a major highway
rehabilitation project. Engineering work is
produced by IDOT engineers or outside consultants.
Actual construction is carried out by private
construction companies, with oversight by IDOT
The publication of the highway program provides the
public and media with the opportunity to review and
respond to the listed projects. Illinois citizens
can express their opinion about construction projects at
public hearings or by submitting comments at other times
to state officials. All public comments are taken
into consideration and balanced with the need to improve
safety, reduce congestion and support economic