Crusher #43517 Metal/Non-Metal

Northstar Materials Inc dba Knife River Materials · Surface

Controlled by Knife River Corporation

Bemidji, Beltrami County, MN · Intermittent

MSHA Mine ID: 2103185

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Compliance record

MSHA citations since 2000

citations

significant & substantial

$2,054

proposed penalties

$2,054

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	2	0	0	0.0
2025 Q3	2	0	0	0.0
2025 Q2	1,587	0	0	0.0
2024 Q4	1,143	0	0	0.0
2024 Q3	2,076	0	0	0.0
2024 Q2	2	0	0	0.0
2024 Q1	2	0	0	0.0
2023 Q4	581	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

June 6, 2023 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY

Northstar Materials Inc dba Knife River Materials · Struck by... (Not Elsewhere Classified)

Carrying tools and hand held grinder, hit start stop trigger on grinder, grinder cut arm