Caltrans is urging motorists to avoid a stretch of Interstate 15 after a fire destroyed an under-construction bridge near the Cajon Pass and closed all lanes to traffic.
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The bridge is near Hesperia, California, on the main route between Southern California and Las Vegas. The freeway has been closed since about 1:30 p.m. Monday.
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San Bernardino County Fire Capt. Josh Wilkins says a blowtorch being used by a construction worker ignited the wooden support structure of an overpass that was under construction.
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Wilkins said the Cajon Pass will be "a nightmare for the next 24 to 48 hours at least."
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Dozens of firefighters were battling the blaze in windy conditions, with limited access to water.
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One worker suffered from smoke inhalation. (AP)
