Interstate 580 through the MacArthur Maze reopened at 8:40 p.m. Thursday -- just 26 days after a gasoline-fueled inferno caused it to collapse. The first vehicles rolled east on I-580 from the Bay Bridge toll plaza and passed over the 165-foot stretch of newly laid freeway. A short time earlier, workers ripped canvas and plastic blankets from the concrete roadway poured Sunday afternoon, spritzed the deck with curing compounds, applied lane stripes and gave it a good sweeping. "First of all we want to thank everyone for their patience,'' said Bob Haus, spokesman for Caltrans after the reopening. Asked why...