92 Ill. Adm. Code 554.504
Overwidth up to 14 Feet 6 Inches Wide
Section 554
Section 554.504 Overwidth up
to 14 Feet 6 Inches Wide
a) Permits may be issued for widths up to the practical maximum
of 14 feet 6 inches, except for toll highways and certain expressways in the
Chicago area.
b) Movement of loads exceeding practical maximum weights (see
Section 554.604), 12 feet in width or 13 feet 6 inches in height are prohibited
on the expressways in Cook County; except Interstate 55 north of Exit 277,
Interstate 57 south of US 6 (159
th
St.), and Interstate 290 north of
toll road Interstate 294.
c) Separate permits must be obtained from the Illinois State Toll
Highway Authority (630/241-6800, Extension 3822 or 3847) for travel on Illinois
toll roads. The maximum height permitted on the toll roads is 14 feet 6
inches, the maximum width permitted on these toll roads is 10 feet, except a
width of 12 feet is allowed on the sections of the tollroad system that carry
Interstate Route 80 and US Route 51.
d) Loads exceeding 14 feet 6 inches in width will generally be
routed over multilane highways whenever possible even though additional travel
distance may result. An alternate routing could be approved if, for example,
the traffic volumes on the proposed two-lane routing were low and the highway
geometrics were sufficient to allow the unit to move without disrupting traffic
flow.