UPDATE 8:30 AM, MARCH 9
Crews have begun their hike up the hillside in Glenwood Canyon and will begin rock scaling by around 10:00 A.M. They will start scaling above the unstable rock and work towards it with the goal of prying it loose and/or gaining a better understanding of its stability. The rock is approximately 20 feet in diameter. Please check www.coloradodot.info/news/media-room.html periodically for news posts and photos.
UPDATE 6:37 PM, MARCH 8
CDOT crews are completing work for the night – conditions are now too dark. I-70 will remain closed overnight.
CDOT geologists have determined that the rock above the highway is too unstable to remain in place. Early tomorrow morning, Tuesday March 9, rock scaling crews will be meeting to determine how best to mitigate the rock.
CDOT maintenance crews made great progress breaking up and clearing away the boulders today. We will send notice as soon as we receive details of the mitigation work. Crews are working fast and making every effort to get traffic safely flowing through the canyon again.
UPDATE SENT 3 PM, MARCH 8
CDOT geologists are on site and are in the process of assessing a rock that appears to be unstable. The assessment requires a two-hour hike up the mountain, inspection and a two-hour hike back down. If the rock is determined to be unstable, CDOT will not reopen any lanes of I-70 until rockfall mitigation can be conducted. Since the assessment will take several hours to complete, mitigation work will not take place until tomorrow as it will be unsafe to conduct the work at night. In the meantime, crews continue to blast the large boulders into smaller pieces for removal (photo attached). So far, crews have blasted three rocks and have several more to blast apart. This work will continue this afternoon.
I-70 remains closed in both directions between Glenwood Springs (mm 116) and at Dotsero (mm 133). Motorists can take US 40 to SH 13 as an alternate route. US 50 to the south is now closed over Monarch pass due to adverse conditions.
More information will be released following inspection of the rockfall site. | 
