Miners were attempting to remove an old pump discharge pipe. The upstream valve had been isolated. While loosening the 4-inch Victaulic fitting, the pipe separated due to tension within the line, causing one of the pipes to swing toward the employee, striking EE in the right lower chest.
Twin UndergroundMetal/Nonmetal
- Fatalities
- 0
- Total incidents
- 10
- Years on record
- 2013–2026
- Latest incident
- Feb 2026
Reportable incidents
10 on file2026 · 1 incident
2021 · 3 incidents
Employee was changing out steel on a bolter when they lost footing and fell back. Employee denied medical attention initially. November they requested to see a doctor, employee was taken to an urgent care and referred to a specialist. Employee was put on RD by the specialist pending surgery.
Employee lost consciousness due to a medical incident not related to work. EE fell forward and struck EE's face on a bolt plate causing a laceration to EE's cheek.
A ground fall occurred post blast at Vista Underground-Turquoise Ridge at the 1N3960 level. No ventilation or access was restricted. No injuries sustained.
2020 · 2 incidents
Employee was driving down the decline. The employee passed another operator and applied the engine break through the turn and the front left bed corner struck the pillar rib of the muckbay causing the employees face to make contact with the truck radio resulting in a laceration on right cheek and nostril.
On April 24 a back shot was taken on 112 stope. Upon inspection it was noticed that the back had broken past the designed stope towards the access. SMD notified the Vista Underground engineering team. Chief Engineer Ben Gunn inspected the site and determined the rock had broken beyond primary ground support and MSHA was notified.
2019 · 1 incident
Employee was riding in the back of a tractor. The tractor hit a hole and the employee bounced up and back down striking the bottom of their foot on a hose that was on the floor. Their foot flexed up against the metatarsal boot causing a fracture.
2017 · 1 incident
Miner had a piece of rock come off approximately 6ft from the r- rib hitting the right tip of EE's middle finger. The injury resulted in 5 stitches at the end of EE's finger.
2013 · 2 incidents
Loading face round when a rock fell from face hit employee ankle.