Mining Incidents

Knife River Portable Plant SD-1 Metal/Non-Metal

Controlled by Knife River Corporation
Sioux Falls, Minnehaha County, SD  ·  Active
MSHA Mine ID: 3900292

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Fatalities
0
Total incidents
2
Years on record
2005
Latest incident
Aug 2005
Compliance record
MSHA citations since 2001
10
citations
1
significant & substantial
$1,139
proposed penalties
$1,454
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 1,779 0 0 0.0
2025 Q2 3,122 0 0 0.0
2025 Q1 1,488 0 0 0.0
2024 Q2 41 0 0 0.0
2023 Q4 43 0 0 0.0
2023 Q3 48 0 0 0.0
2023 Q2 58 0 0 0.0
2022 Q4 1,720 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

2005 · 2 incidents

August 23, 2005 SD · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Knife River - South Dakota · Over-exertion in pulling or pushing objects

Pulling hose and fill tubes, hurt back.

July 5, 2005 SD · Metal/Non-Metal outside foreman, leadman MACHINERY
Knife River - South Dakota · Struck by falling object

Employee was removing the cutting edge bolts with an air wrench. One of the bolts dropped out of the sq. slot. He pushed the bolt back up into the sq slot-when he used the air wrench to remove the nut & bolt, nut & air wrench dropped. The head of the bolt dropped down out of the sq slot and cut through his glove and cut tip of left index finger.