Plant 4 Metal/Non-Metal

Mickelsen Construction, Inc. · Surface

Controlled by Delwyn L Mickelsen

Blackfoot, Bonneville County, ID · Intermittent

MSHA Mine ID: 1002187

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Compliance record

MSHA citations since 2010

citations

significant & substantial

$5,117

proposed penalties

$4,876

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	817	0	0	0.0
2025 Q3	1,067	2	1	1874.4
2025 Q2	679	0	0	0.0
2025 Q1	609	0	0	0.0
2024 Q4	1,223	0	0	0.0
2024 Q3	1,270	3	0	2362.2
2024 Q2	788	0	0	0.0
2024 Q1	102	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.

1 on file

November 19, 2025 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS

Mickelsen Construction, Inc. · Caught in, under or between a moving and a stationary object

The miner was working on changing a cone liner on a crusher. Daylight hours, no precipitation. 0-7 mph w winds