Crews managed to remove the burned hulks and abandoned rigs on Thursday but flames continued to burn along the edge of the road in some areas, fire spokesman Brandon Vacarro said. No injuries have been reported, but evacuations have been issued on both sides of I-5 north of Lakehead to the Shasta-Siskiyou county line.
The fire had burned more than 34 square miles (89 square kilometers) of timber and brush and prompted evacuation orders for scattered homes and buildings in three counties in and around the Shasta-Trinity National Forest.
Caltrans said I-5 north of Lakehead remains closed and there is no estimated time of reopening at this time.
The blaze Thursday along Interstate 5 has blackened 23 square miles (60 square kilometers), prompting mandatory evacuations.
Smoke will exist over portions of the fire, especially in the lower drainages, through much of the morning hours.
The California Interagency Incident Management Team assumed command over the Delta wildfire as of Wednesday.
The Delta Fire was just reported on September 5 at almost 1 p.m. near the Vollmers exit on I-5 north of Lakehead, California.
The Legislature budgets for firefighting based on the historical average costs.
The AP reported that Cal Fire has requested additional funding in seven of the past 10 years.
Dozens of miles of Interstate 5 have been shut down in California this week due to a major wildfire ravaging the trees on both side of the interstate.
Officials said the blaze was human-caused but didn't indicate whether it was arson or an accident.
Fire trucks pass the Delta Fire burning in the Shasta-Trinity National Forest, Calif., on Wednesday, Sept. 5, 2018.
A representative from the Shasta County Sheriff's Office could not immediately be reached for comment. As a result, Amtrak temporarily suspended its Coast Starlight passenger train service between Sacramento, California, and Klamath Falls, Oregon.
The Hirz Fire northeast of Redding is the largest fire still burning in California. I-5 is California's largest freeway and runs north-south from the OR border through San Diego.
'It isn't a lot of people, ' he said.
The Delta fire broke out around 25 miles south of where the Carr Fire had raged for six weeks earlier in the season, killing eight people - including six firefighters - and scorching 229,000 acres.
Farther north, an evacuation warning was in effect for the town of Dunsmuir, advising some 1,600 residents to be ready to flee at a moment's notice.