Washington Administrative Code › Title 468 - Transportation, Department of (See Title 88) › Chapter 468-38 - Vehicle size and weight-Highway restrictions-Equipment › Section 468-38-175 - Highway travel restrictions - Days, times and highway use

Current through Register Vol. 24-14, July 15, 2024
What restrictions are imposed on vehicles operating under
				special permit relative to days, times and use of the highway?
Day, time
				and highway use are divided into the following categories:
(1)
Days when travel is
			 restricted:
Vehicles operating under special permit for
			 overweight/overdimensional, except as provided for in WAC
			 468-38-075, may be restricted
			 from the state highways on the holidays of New Year's Day, Memorial Day,
			 Independence Day, Labor Day, Thanksgiving Day and the day after Thanksgiving,
			 Christmas Day, and commencing at noon of the day preceding said
			 holidays.
(2)
Commuter
			 traffic restrictions:
Vehicles operating under special permit for
			 overweight/overdimensional, except as provided for in WAC
			 468-38-075, may be restricted
			 from specified sections of state highways having excessive volumes of traffic
			 during morning and afternoon commuting hours. The department shall identify and
			 publish on the internet, and as an addendum to the special permit, specific
			 areas, hours and vehicle widths relating to the restrictions.
(3)
Nighttime travel:
Vehicles
			 or combinations operating under a special permit for overweight/overdimensional
			 may be permitted to move at night on state highways subject to department
			 preferred hours and routes of travel. "Night movement approved" must be stated
			 on the permit, except as provided for in WAC
			 468-38-075. Overdimensional moves
			 authorized to move at night must have lighting equipment that complies with the
Code of Federal Regulation
,  49 C.F.R., Part 393.11 . No
			 movements shall be made when visibility is reduced to five hundred feet or when
			 hazardous roadway conditions exist (including, but not limited to: Snow, ice,
			 mudslide, wind or water flooding over roadway). It is the responsibility of the
			 vehicle operator to discontinue the move and exit the highway to a safe
			 location when any of the above conditions exist.
(4)
Reversible lane use:
Trucks
			 carrying flammable liquid cargoes, as described in chapter 470-12 WAC, are
			 restricted from using the reversible lanes on SR 5, Seattle freeway, between
			 James Street and 110th Street N.E. The term flammable liquid as applied to this
			 rule shall be as defined in
			 RCW
			  46.04.187. This rule applies to all vehicles,
			 whether operating under special permit or not.
(5)
Speed limits:
Speed of
			 travel must comply with the following:
(a)
			 Unless otherwise stated, maximum speed for a vehicle(s) under special permit
			 shall be the same speed limit posted for trucks.
(b) When travel on the roadway shoulder is
			 required on a two-lane highway to allow overtaking traffic to pass, the speed
			 must not exceed twenty-five miles per hour.
(c) If a speed limit is stated on the special
			 permit, it becomes one of the conditions under which the permit was issued.
			 This stated speed must not be exceeded; however, if a lower speed is posted, it
			 shall take precedence. Violation of the speed limit stated on the permit shall
			 render the permit null and void.