92 Ill. Adm. Code 554.505
Width Exceeding 14 Feet 6 Inches
Section 554
Section 554.505 Width
Exceeding 14 Feet 6 Inches
a) In the interest of safety, the movement of vehicles or objects
exceeding this width is restricted. Construction activity or other highway
conditions may result in lengthy delays in the issuance of a permit or may
preclude issuance altogether.
b) Movement of vehicles or objects exceeding 18 feet wide will
generally only be authorized on Interstate and other multilane controlled
access highways. All the movements on these highways must be able to maintain
any minimum posted speeds, except at locations where the permit requires
reduced speeds.
c) Permits may be issued to move a vehicle or load over 14 feet 6
inches in width, provided:
1) Roadway data maintained by the Permit Office disclosed that
the movement can be made without seriously jeopardizing other traffic or
highway facilities. If these data are inadequate, a District investigation
shall be conducted.
2) The movement will not delay emergency vehicles that may need
to travel on the proposed routing.
3) The move is not one of many to be made in the course of
regular operations.
d) Movements shall be confined to a single traffic lane and shall
be made in such a manner that the rest of the roadway will be open at all times
so the flow of other traffic will not unnecessarily be obstructed. Whenever
the width of the object or the roadway conditions require the use of more than
a single traffic lane, other traffic will be given the right-of-way over this
movement. The driver shall remove the vehicle from the roadway when necessary
to allow an accumulation of traffic to pass or when so directed by a police
officer.
e) Moves of vehicles or objects over 16 feet in width require a
District investigation. A District investigation will not be required for each
of several identical moves provided they are all completed within 30 days of
the initial investigation. If a District investigation is required and the permittee
does not request issuance of the permit again within 3 weeks after the
effective date on the original permit, the Permit Office will resubmit the requested
movement to all of the Districts for reconsideration.