This rule establishes the maximum number of vehicles in
combination and size of vehicles allowed when moving an over-dimensional
(1) The combination must not
exceed two vehicles, the towing vehicle and the unit being
lengths are as follows:
overall length of the combination must:
Not exceed 85 feet on State highways;
(B) Not exceed 95 feet on Group 1 highways;
Not exceed 110 feet on
Interstate highways, multilane highways or highways approved for the longer
length as authorized by a single trip permit or as authorized by written order
of the Chief Engineer or the Administrator of the Commerce and Compliance
Division as authorized in OAR 734-070-0010
The mobile home being towed must not
exceed 80 feet, including the tongue, except as provided in OAR
maximum widths are as follows:
(a) Units must
not exceed 14 feet overall width, unless a single trip permit or a limited
duration permit is issued;
Units transported under a single trip permit or limited duration permit are
subject to the following:
(A) The unit must
not exceed 16 feet at the base except as described in subsection (e);
(B) The overall width must not, except as
described in subsection (e), exceed 18 feet.
Except as prohibited by paragraph (b)(B)
of this section, a unit may have an eave, provided the eave does not extend
beyond either side by:
(A) More than 30 inches
for units with a base width of less than 16 feet; or
(B) More than 16 inches for units with a base
width of 16 feet or more.
(d) External appurtenances such as doorknobs,
window fasteners, eave cap, clearance lights and load securement devices may
exceed the width of the unit by a distance not greater than two inches on each
(e) A unit that exceeds 16
feet wide at the base may be allowed if the Administrator of CCD determines
that the public interest requires the impending movement and the movement can
be performed safely.
Except as provided in subsection (5) the maximum height for the combination,
while in transit, must not exceed 14 feet unless proper route clearance has
been obtained and is so indicated on the single trip permit.
(5) A continuous trip permit may be issued
for a combination height up to 14 feet six inches over specifically authorized
consisting of a truck-tractor or toter towing a manufactured home, mobile home
or modular building unit chassis, which may include axles and tires attached to
each chassis hauled, may operate on a 30-day multiple trip permit under the
(a) Chassis length
including the tongue must not exceed 80 feet;
(b) The chassis must not be loaded end to end
but may be staggered lengthwise for transport;
(c) Overhang must not extend more than five
feet off the rear of the chassis transporting the load;
Overall length of the combination must
(A) 105 feet on interstate and
multilane highways; and
(B) 95 feet
on two-lane green and brown routes shown on Route Map 7.
(e) The chassis transporting the load must be
equipped with brakes and lights that meet the requirements of CFR 49 Part
Or. Admin. R.
HC 1287, f. 3-14-73; 1
OTC 19a, f. & ef. 1-24-74; 1 OTC 9-1978(Temp), f. & ef. 7-19-78; 1 OTC
11-1979(Temp), f. & ef. 6-20-79; 1 OTC 12-1979(Temp), f. & ef. 6-20-79;
1 OTC 13-1979(Temp), f. & ef. 6-20-79; 1 OTC 24-1979, f. & ef.
10-24-79; 2 HD 7-1982(Temp), f. & ef. 11-22-82; 2HD 15-1983, f. & ef.
8-18-83; HWY 4-1988(Temp), f. & cert. ef. 6-23-88; HWY 4, 1989, f. &
cert. ef. 5-23-89; HWY 6-1990, f. & cert. ef. 3-13-90; HWY 5-1992, f. &
cert. ef. 3-25-92; HWY 7-1996, f. & cert. ef. 12-19-96; TO 2-1998, f.
3-10-98, cert. ef. 4-1-98; TO 3-1999, f. & cert. ef. 10-13-99; TO 2-2001,
f. & cert. ef. 6-14-01; HWD 3-2008(Temp), f. & cert. ef. 4-24-08 thru
10-21-08; HWD 9-2008, f. & cert. ef. 9-11-08; HWD 5-2009, f. & cert.
ef. 3-20-09; HWD 6-2011, f. & cert. ef. 6-21-11; HWD 3-2012, f. & cert.
ef. 1-27-12; HWD 2-2013, f. & cert. ef. 5-16-13;
29-2020, minor correction filed 05/27/2020, effective
Statutory/Other Authority: ORS
Statutes/Other Implemented: ORS