San Bernardino County (Calif)

Traffic was at a standstill for hours on a portion of I-15 near Baker, Calif., after a truck carrying lithium batteries overturned and caught fire.Drivers were stuck in traffic in 109-degree heat on a California highway on Saturday for hours as the authorities struggled to extinguish a fire involving a truck carrying lithium ion batteries that had overturned on Friday.Emergency services received calls around 6:30 a.m. local time about a truck that had crashed near Baker, Calif., in the northbound lanes of I-15, a major highway that leads travelers to Las Vegas.The northbound lanes were closed beginning at 8:30 a.m., and the southbound lanes at 9 a.m. The southbound lanes reopened shortly after 2:30 p.m. on Friday, according to the California Highway Patrol.The northbound lanes remained closed as of 5 p.m. on Saturday, according to the California Department of Transportation.The California Highway Patrol said it had cleared the backlog of stuck vehicles on the closed highway by rerouting them to I-40. But that, in turn, had caused “extremely heavy” traffic on that highway, which the agency described as “the only alternative” because of the location of the closure on I-15.“Multiple attempts were made to move the container from the freeway shoulder to open land using heavy equipment,” the San Bernardino County Fire Protection District said on social media on Saturday. “However, the container’s weight, exceeding 75,000 pounds, has made these efforts unsuccessful so far.”The fire district said it was monitoring the air quality “due to the hazardous materials and chemicals involved.”Emergency responders were checking for hydrogen cyanide, chlorine and sulfur dioxide, the district said, adding, “These chemicals pose significant health risks at elevated levels, with hydrogen cyanide and chlorine being particularly dangerous even at low concentrations.”Lithium ion batteries, which are used in many electronic devices, including e-bikes and electric cars, contain highly flammable materials. If ignited, the batteries burn hot and are very difficult to put out.The fire district noted on social media that lithium ion battery fires “can escalate to thermal runaway, needing massive amounts of water to extinguish.”Videos posted on social media from drivers on the highway traveling in the opposite direction showed long lines of vehicles at a complete stop.The California Highway Patrol did not provide an estimate of how long drivers had been stuck on I-15, noting that travel patterns vary, nor was it clear how many drivers had been stranded.But some on social media said they had been stopped in traffic for six hours and expressed concern about running out of gas or electric cars running out of charge.“The closure of the northbound side was moved further south,” the California Highway Patrol said in an email, adding that this move “allowed motorists to utilize alternate routes.”Saturday was an exceptionally hot day in Baker, with temperatures reaching the triple digits.The fire district, which could not be immediately reached for comment, advised people to travel with plenty of water and to “ensure you have enough supplies, fuel and charge in your vehicle.” More