OAR 734-076-0155: Maximum Dimensions for Continuous Trip Permit Operations

(1) Width: No disabled unit, including load, will exceed eight feet-six inches in width with the exception of: (a) When initially operating under a permit authorizing a greater width issued to the disabled vehicle, the allowances granted and restrictions imposed by that permit will apply only to movement over highway routes described in the permit; or (b) Where collision has resulted in a width greater than eight feet-six inches, but not exceeding 10 feet in width. In that event, during daylight hours the extreme width must be marked by red or fluorescent orange flags not less than 18 inches square visible to the front and rear, and during the hours of darkness the extreme width must be illuminated by clearance lights or markers as described in ORS Chapter 816. (c) Rear View Mirrors — Towing vehicles or load recovery vehicles transporting overwidth units must be equipped with rear-view mirrors capable of affording the operator a view to the rear of the disabled unit or load. Such mirrors must be retracted to legal width when an overwidth disabled unit is not being transported. (2) Length: (a) Except as described in subsection (d) of this section, Class A, B, and C tow vehicles must not exceed 40 feet. Class D tow vehicles must not exceed 45 feet; (b) When operating under a single-trip permit, rotator tow vehicles must not exceed 45 feet; (c) The length of any towed vehicle must not exceed the length established by statute or rule unless authorized by a transportation permit issued in accordance with OAR Chapter 734 to the vehicle. Combination length of towed vehicles may be temporarily extended when towing provided the combination was of legal length prior to the incident; (d) A log truck or full log truck “towing vehicle” must not exceed 40 feet in length. A log truck or full log truck “towing vehicle” must not tow a loaded log truck and pole trailer combination that exceeds the lengths established by OAR 734-071-0010; and (e) When a Class B or C tow vehicle is using a towing device to tow another vehicle, the length of the tow vehicle and towing device must not exceed 55 feet in total length and the distance between the rear bumper of the towing vehicle and the front or foremost point of the towed vehicle must not exceed five feet. (3) Height: No disabled unit, including load, may exceed 14 feet in height with the exception of: (a) When initially operating under a permit issued in accordance with OAR Chapter 734 authorizing a greater height issued to the disabled vehicle, the allowances granted and restrictions imposed by that permit will apply only to movement over highway routes described in the permit; or (b) A continuous trip permit may be issued for a combination height up to 14 feet six inches over specifically authorized routes.