Department of Transportation, Highway Division, Chapter 734
Rule Caption: Maximum allowed tow length for mobile homes
Adm. Order No.: HWD 2-2013
Filed with Sec. of State: 5-16-2013
Certified to be Effective: 5-16-13
Notice Publication Date: 4-1-2013
Rules Amended: 734-075-0010, 734-075-0011
Subject: These rules describe the transportation of mobile homes and modular building units on highways under the authority of the Oregon Department of Transportation. A petition for rulemaking was received from the Oregon Manufactured Housing Association requesting a revision to OAR 734-075-0010 and 734-075-0011 to extend the lengths mobile homes from 75 feet to 80 feet (including the tongue). Nevada, California, Idaho and Washington recently extended permit actions that authorize the movement of mobile homes, not to exceed 80 feet in length. The amended rules follows suit with Oregon’s neighbors to extend the length to 80 feet and will promote administrative efficiency and the efficiency of movement of manufactured building through Oregon and the adjacent states. In addition, the amendments grant the Administrator of MCTD the same authority granted the Chief Engineer with regard to oversight of the movement of oversized loads or vehicles.
Rules Coordinator: Lauri Kunze—(503) 986-3171
Vehicle Combinations and Maximum Size Limitations
This rule establishes the maximum number of vehicles in combination and size of vehicles allowed when moving an over-dimensional unit:
(1) The combination must not exceed two vehicles, the towing vehicle and the unit being transported.
(2) The maximum lengths are as follows:
(a) The maximum overall length of the combination must:
(A) Not exceed 85 feet on State highways;
(B) Not exceed 95 feet on Group 1 highways; and
(C) 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 Motor Carrier Transportation Division as authorized in OAR 734-070-0010.
(b) The mobile home being towed must not exceed 80 feet, including the tongue, except as provided in OAR 734-075-0011.
(3) The 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;
(b) 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.
(c) 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 side;
(e) A unit that exceeds 16 feet wide at the base may be allowed if the Administrator of MCTD determines that the public interest requires the impending movement and the movement can be performed safely.
(4) 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 routes.
(6) A combination 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 following conditions:
(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;
(d) Overall length of the combination must not exceed:
(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 393.
Stat. Auth.: ORS
184.616, 184.619, 810.060, 810.060 & 823.011
Stats. Implemented: ORS 818.200 & 818.220
Hist.: 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
Authority to Approve Greater Length
(1) The Chief Engineer or the Administrator of the Motor Carrier Transportation Division is authorized to issue permits, on an individual basis, to allow transportation of a unit into or through the State when the length exceeds that specified in OAR 734-075-0010.
(2) In issuing permits under this rule, the Chief Engineer or the Administrator of the Motor Carrier Transportation Division will determine the following:
(a) The safety of other highways users is not impaired; and
(b) The adjacent states through which the mobile home is transported also permit the movement.
Stat. Auth.: ORS
184.616, 184.619, 810.060 & 823.011
Stats. Implemented: ORS 818.200 & 818.220
Hist.: HWY 6-1990, f. & cert. ef. 3-13-90; HWY 5-1992, f. & cert. ef. 3-25-92; HWD 3-2012, f. & cert. ef. 1-27-12; HWD 2-2013, f. & cert. ef. 5-16-13
Oregon State Archives • 800 Summer St. NE • Salem, OR 97310