Colorado interstate closed indefinitely following mudslides After a mudslide stranded over 100 motorists overnight and indefinitely shutdown a major interstate in Colorado on Thursday, the state is preparing to issue a state and federal disaster declaration. Crews are still cleaning up the impacted area of I-70 near the Hanging Lake Tunnel in Glenwood Canyon where the mudslides occurred, and there is currently no estimate as to when the section of the interstate will reopen. "The monsoon weather patterns means this threat is ongoing," Colorado Gov. Jared Polis said during a press conference on Monday. "Today's hail and rain could potentially do additional slides and we're not out of the woods yet with regards to additional damage." He added that they won't know the extent of the damage until the debris is cleared and that there were some areas that were under 10 feet or more of mud. Due to the extent of the damage, the state would also be seeking aid at a federal level. "We are also readying a state disaster declaration and a request for a federal declaration with the Biden administration," Polis announced on Monday in an update on the damage. "Glenwood Canyon is majestic, but its majestic nature makes for challenges when it comes to infrastructure, especially in the face of catastrophic climate change affecting states across the West. We have extensive damage to I-70 in multiple locations in Glenwood Canyon, and the monsoon weather pattern means this threat is ongoing." The mudslide occurred on Thursday night amid heavy rainfall and thunderstorms. A flash flood warning had previously been issued for the area earlier in the evening, closing the interstate. However, it reopened when the warning expired at 6 p.m., local time, according to an operational report from the Colorado Department of Transportation (CDOT). (More on the link) .