Highway 36 will be closed during daylight hours for the next several days as crews work to clean up a major gasoline spill from a rolled tanker near Lyons that resulted in an extensive fish kill.

The tanker rolled aboiut noon Tuesday on Highway 36 between Lyons and Estes Park. It was hauling 8,000 gallons of gasoline, with 500 to 1,000 gallons spilling into the environment, according to the Environmental Protection Agency.

The highway will be closed at Apple Valley Road. Personal vehicles can use Apple Valley Road to go around the closure, but commercial vehicles must take Highway 7 or Highway 34, the Colorado Department of Transportation said. 

The EPA will be cleaning the spilled gasoline on the site during the closure. The EPA said an unknown amount of the spilled gasoline drained into the North Saint Vrain Creek, resulting in extensive fish kill.

Officials: Drowsy driver caused major crash, 36-hour-plus closure of I-25

Anyone with photos or videos of dead fish, or who collected and saved dead fish, is asked to contact Colorado Parks and Wildlife at LyonsFishInfo@state.co.us.

The water supply for Lyons and Longmont was diverted at the Longmont Dam and has not been impacted, city officials said.

The Colorado State Patrol, CPW, EPA and city agencies are continuing to investigate the crash and its environmental impact.

According to CSP, the tanker driver’s speed is being investigated as a possible factor in the crash. The driver was hospitalized with minor injuries and is expected to be OK.