Bonanza Mines safety activity
MSHA violations, accident reports and inspections.
Safety activity
Safety belts and lines.
30 CFR 57.15005 · Significant and substantial (S&S) · $336.00 proposed penalty
Regular Safety and Health Inspection
31.5 on-site hours reported
Correction of hazardous conditions.
30 CFR 57.3200 · $151.00 proposed penalty
Slip or fall of person
Days restricted activity only
Accident narrative
A miner was removing ice from a shaft wall when the miner slipped and fell catching self with their right arm. The miner was evaluated and given a full release with no restrictions. On Tuesday February 11, 2025, the miner was reevaluated and given a work release with restrictions pending an MRI. MRI results showed a partial tendon tear and small fracture in the right shoulder.
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.