Travel is permitted during daylight hours from sunrise to sunset, Saturday from sunrise until noon. Travel not permitted on Sunday, or the following holidays: New Year's Day, Memorial Day, Independence Day, Labor Day, and Thanksgiving Day, and Christmas Day. Except during the holiday periods listed above, movement under permit in urbanized areas is authorized 7 days a week only during the following time periods: 3 a.m. to 7:30 a.m., 9 a.m. to 4 p.m., 7 p.m. to sunset, 9 a.m. to 4 p.m. through the Fort Pitt, Squirrel Hill or Liberty Tunnels in Allegheny County.
Clean yellow warning signs at least 7 feet wide by at least 18 inches high and containing only the words ‘‘OVERSIZE LOAD’’ in black letters at least 10 inches high with a 2-inch letter stroke, shall be mounted on the front of the permitted oversize vehicle and on the rear of the permitted oversize vehicle or load, unless otherwise specified in the permit.
Points of excessive length (including an overlength vehicle or combination or a load extending more than 4 feet beyond the rear of a combination) and width, including an overwidth vehicle or a load extending beyond one or both sides of a vehicle or combination, shall be marked with clean, plain, red or fluorescent orange warning flags, at least 18 inches square.
When an oversize movement is made within an urbanized area between 3 a.m. and sunrise, the permitted vehicle and load shall be illuminated with additional lighting on all sides so as to be clearly visible from 1,000 feet in all directions. Headlamps and rear lights of permitted vehicle are to be illuminated when moving.
Dimensions: Width: 8' 6" (8' on other roads) Height: 13' 6" Semi Trailer Length: 56' Maximum Length: 80' Overhang: Rear 6'