https://www.9news.com/article/news/local/fiber-line-damage-colorado-811-outa... Construction crew hits underground fiber line, causes outage of 'call before you dig' hotline Through the 811 hotline you can call to have utility lines marked before doing any digging. DENVER — It looks like someone may have forgotten to call before they started digging and now others are unable to do so due to an outage of the Colorado 811 hotline caused by a busted fiber line. A message on the Colorado 811 website says there's an outage in the communication system. It says an underground fiber line was damaged and it's causing "significant" outages in the Denver area. Construction activity caused underground damage, according to the website. Crews are working to repair the damage, but repairs are not expected to be completed until around 8 p.m. Tuesday. [...]