MSHA urges mine operators to inspect impoundments after heavy rain

Highlighting weather-related hazards across the mining industry, the Mine Safety and Health Administration (MSHA) issued a safety alert urging mine operators to ensure the safety of impoundment structures following heavy rainfall and flooding.

Heavy rainfall and flooding can weaken embankments and raise water levels in impoundments, which can lead to failure. MSHA recommends that impoundments be examined by qualified personnel after significant rain/snowmelt events, and signs of instability should be reported and corrected immediately. Additionally, mine operators should:

• Document and photograph all findings.
• Ensure spillways, drains, and emergency overflow channels are clear and functioning.
• Evaluate freeboard levels and adjust water management practices as needed.
• Update their Emergency Action Plan and review it with all personnel.

The full alert can be found at msha.gov.