On March 9, 2018 a “limited breach” of the tailings dam at the North Tailings Facility of the Cadia Mine tailings impoundment occurred in New South Wales, Australia. The area of the failure is approximately 270 m across, with a back-scarp of about 100 m. The runout was about 370 m. All things considered, it could have been worse. The mine owner, Newcrest Mining Limited, has ceased mining operations while they deal with the issue, and has begun radar monitoring. No additional movement had been detected as of last week. More information can be found in the briefing given to shareholders, and in the initial press release. Image: Newcrest Mining Limited
A colleague of mine sent me an amazing video of a culvert failure and subsequent road collapse in Freeport Maine during a storm. The culvert was unable to accommodate the high volume of water, and it was backing up behind the roadway embankment like a dam, and spilling out onto the roadway. In a span of about 3 minutes, the entire section of road collapsed and was washed downstream. I don’t know the exact date the video was taken, but it appears to be in August of 2008. Click through for the video.