Mining Incidents

Portable Plant #7 Metal/Non-Metal

Strata Corporation · Surface
Controlled by Knife River Corporation
Cheyenne, Grand Forks County, ND  ·  Intermittent
MSHA Mine ID: 3200807

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Fatalities
0
Total incidents
2
Years on record
2015
Latest incident
Aug 2015
Compliance record
MSHA citations since 2012
21
citations
6
significant & substantial
$4,705
proposed penalties
$20,805
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 3,399 0 0 0.0
2025 Q1 0 0 0
2024 Q3 0 0 0
2024 Q2 4,128 0 0 0.0
2023 Q4 1,604 0 0 0.0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 1,766 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

2 on file

2015 · 2 incidents

August 12, 2015 ND · Metal/Non-Metal miner, prospector, nec DISORDERS (PHYSICAL AGENTS)
Strata Corporation · Contact with heat

Employees were pulling water line on site in hot weather conditions. Employee went into the gen set, sat down and felt dizzy, light headed and complained of both arms hurting.

June 13, 2015 ND · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman DISORDERS (PHYSICAL AGENTS)
Strata Corporation · Contact with heat

Employee was shoveling dirt to smooth a walkway and evidently fainted. The supervisor found him lying on the ground, called his name, the employee woke up but had no recollection of what happened.