Wide load: B-1 bomber hits the road to Wash.

Wide load: B-1 bomber hits the road to Wash. »Play Video

PORTLAND, Ore. – A giant B-1 bomber hit the road Friday night in Portland.

Washington State Patrol is escorting the bomber to Boeing Field in Seattle this weekend.

The bomber is 131 feet long, 29 feet wide and 15 feet high.

It headed north on Interstate 205 at 11:30 p.m. and then took Interstate 5 to the Nisqually weigh station just north of Olympia, Wash.

It will complete the final leg of the trip Saturday night.

The fuselage is owned by Boeing. It arrived in Portland from Arizona last November and has been in a hangar since then.

•    Watch a Boeing video about the 25th anniversary of the plane.

Current B-1 bombers, known as B1-B Lancers, have top speeds of about Mach 1.25 (about 900mph).