Mining Incidents

TENSLEEP MINE: 135 MSHA citations Metal/Non-Metal

Tensleep, Washakie County, WY  ·  Active
MSHA Mine ID: 4800954

TENSLEEP MINE has $29K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at TENSLEEP MINE.

Fatalities
0
Total incidents
25
Years on record
1991–2026
Latest incident
Feb 2026
Compliance record
MSHA citations since 2000
135
citations
33
significant & substantial
$28,507
proposed penalties
$26,914
paid to date
94% of proposed penalties paid to date, a $1,593 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
86
inspections on record
1,263
inspection hours
10.7
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
135 citations across 1,263 inspection hours.
Source: MSHA inspections data, updated weekly.

TENSLEEP MINE has $29K in proposed MSHA penalties and $0 outstanding across 2 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$29K
proposed penalties
$27K
current assessed
$27K
paid to date
$0
outstanding
127 assessments are final orders; 2 contested dockets.
Of $6K in penalties contested before the Commission, $3K was upheld in final decisions.
As of the most recent assessment on 2026-06-16.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
25.4%
significant & substantial
6.9%
high negligence or reckless
24.6%
reasonably likely or greater
40.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.8% none, 6.9% low, 85.4% moderate, 6.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
5 citations taken to the federal commission · 4% of citations on record
  • Settled 3 · 60%
  • Stood as issued 1 · 20%
  • Vacated or withdrawn 1 · 20%
75%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 4 decided S&S contests · industry: 79%
52%
Penalty reduction in decided contests
$6K proposed, $3K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2022-07-13.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEST 2022-0159 Settlement McCarthy 2022 $4K → $3K
WEST 2022-0275 Dismissal Miller 2022 $2K → $0
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2025-07-30
0%
of limit-tested samples over the exposure limit
25
samples
5
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg13
  • Quartz, respirable, >1% Qtz6
  • Cristobalite, respirable3
  • Unlisted Particulate, respirable, <1% Qtz3
Show the individual readings (25)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-07-30 Respirable dust, <.1mg 0 Bulldozer Operator
2024-03-13 Quartz, respirable, >1% Qtz 0.13 0.6 0.22 Scraper Operator
2024-03-13 Respirable dust, <.1mg 0 Road Grader Operator
2024-03-13 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2024-03-13 Respirable dust, <.1mg 0 Bulldozer Operator
2024-03-13 Quartz, respirable, >1% Qtz 0.15 Scraper Operator
2022-04-08 Respirable dust, <.1mg 0 Scraper Operator
2022-04-08 Respirable dust, <.1mg 0 Bulldozer Operator
2018-10-24 Cristobalite, respirable 0 Scraper Operator
2018-10-24 Respirable dust, <.1mg 0 Scraper Operator
2018-10-24 Unlisted Particulate, respirable, <1% Qtz 0.15 Bulldozer Operator
2018-10-24 Cristobalite, respirable 0.15 Bulldozer Operator
2018-10-24 Unlisted Particulate, respirable, <1% Qtz 0 Scraper Operator
2018-10-24 Cristobalite, respirable 0 Scraper Operator
2014-11-05 Respirable dust, <.1mg 0 Tractor Operator
2014-11-05 Unlisted Particulate, respirable, <1% Qtz 0.12 Bulldozer Operator
2010-01-12 Respirable dust, <.1mg 0 Scraper Operator
2010-01-12 Respirable dust, <.1mg 0 Bulldozer Operator
2009-08-04 Quartz, respirable, >1% Qtz 0.16 0.98 0.16 Bulldozer Operator
2005-06-16 Quartz, respirable, >1% Qtz 0.27 0.81 0.33 Scraper Operator
2005-06-16 Quartz, respirable, >1% Qtz 0.26 1.17 0.22 Bulldozer Operator
2005-06-16 Respirable dust, <.1mg 0 Scraper Operator
2001-06-05 Respirable dust, <.1mg 0 Scraper Operator
2001-06-05 Quartz, respirable, >1% Qtz 0.37 1.17 0.32 Bulldozer Operator
2000-08-12 Respirable dust, <.1mg 0 Scraper Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

TENSLEEP MINE recorded 0.00 reportable injury cases per 100 full-time workers in 2024.

Injury rate, 2024
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 1.77 and the all-US-mining average was 2.08 cases per 100 workers.
In Wyoming, metal and nonmetal mining averaged 1.91 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2024 * 0.00 0.00 0.000
2013 * 0.00 0.00 0.000
2012 * 0.00 0.00 0.000
2009 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Kaycee Bentonite Corp 1950 to 1986
  2. Black Hills Bentonite 1987 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 11
2025 9
2024 9
2023 8
2022 8
2021 7
2020 8
2019 7
2018 6
2017 7
2016 6
2015 8
2014 8
2013 9
2012 9
2011 9
2010 9
2009 8
2008 8
2007 8
2006 7
2005 7
2004 6
2003 5
2002 6
2001 4
2000 4
Source: MSHA quarterly employment and production, updated weekly.

TENSLEEP MINE sits in Washakie County, Wyoming, where the Census mining category is 2.3% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Washakie County, Wyoming · Population 7,708
2.3%
Mining share of county employment
$62,648
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2026 Q2 4,736 0 0 0.0
2026 Q1 5,752 1 0 173.9
2025 Q4 4,775 0 0 0.0
2025 Q3 5,313 2 0 376.4
2025 Q2 4,833 0 0 0.0
2025 Q1 4,150 0 0 0.0
2024 Q4 4,301 3 2 697.5
2024 Q3 6,696 2 1 298.7
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,409 0 0 0.0
2024 Q1 4,838 5 1 1033.5
2023 Q4 4,421 0 0 0.0
2023 Q3 5,708 4 0 700.8
2023 Q2 4,546 0 0 0.0
2023 Q1 4,621 6 2 1298.4
2022 Q4 3,685 0 0 0.0
2022 Q3 5,024 0 0 0.0
2022 Q2 4,411 7 4 1586.9
2022 Q1 3,429 0 0 0.0
2021 Q4 3,610 7 2 1939.1
2021 Q3 5,936 0 0 0.0
2021 Q2 3,178 0 0 0.0
2021 Q1 3,032 1 0 329.8
2020 Q4 3,482 0 0 0.0
2020 Q3 6,152 1 0 162.5
2020 Q2 4,121 3 0 728.0
2020 Q1 3,262 2 0 613.1
2019 Q4 2,600 0 0 0.0
2019 Q3 4,244 0 0 0.0
2019 Q2 3,844 2 0 520.3
2019 Q1 3,882 0 0 0.0
2018 Q4 2,811 2 0 711.5
2018 Q3 3,248 1 0 307.9
2018 Q2 2,895 0 0 0.0
2018 Q1 2,684 0 0 0.0
2017 Q4 3,428 0 0 0.0
2017 Q3 4,846 0 0 0.0
2017 Q2 4,045 0 0 0.0
2017 Q1 3,415 0 0 0.0
2016 Q4 2,868 1 0 348.7
2016 Q3 3,348 0 0 0.0
2016 Q2 2,857 0 0 0.0
2016 Q1 2,705 0 0 0.0
2015 Q4 3,302 1 0 302.8
2015 Q3 5,128 5 2 975.0
2015 Q2 4,861 0 0 0.0
2015 Q1 4,116 0 0 0.0
2014 Q4 3,378 6 0 1776.2
2014 Q3 5,740 2 0 348.4
2014 Q2 6,541 0 0 0.0
2014 Q1 3,776 0 0 0.0
2013 Q4 3,354 3 0 894.5
2013 Q3 6,442 2 2 310.5
2013 Q2 8,105 0 0 0.0
2013 Q1 4,246 2 2 471.0
2012 Q4 4,993 0 0 0.0
2012 Q3 7,038 0 0 0.0
2012 Q2 5,892 0 0 0.0
2012 Q1 5,225 0 0 0.0
2011 Q4 4,242 0 0 0.0
2011 Q3 6,529 0 0 0.0
2011 Q2 4,458 2 0 448.6
2011 Q1 4,168 0 0 0.0
2010 Q4 3,677 0 0 0.0
2010 Q3 5,761 2 0 347.2
2010 Q2 4,468 0 0 0.0
2010 Q1 3,998 1 0 250.1
2009 Q4 4,380 0 0 0.0
2009 Q3 7,035 7 1 995.0
2009 Q2 5,272 0 0 0.0
2009 Q1 4,206 0 0 0.0
2008 Q4 3,454 3 0 868.6
2008 Q3 5,435 0 0 0.0
2008 Q2 4,225 0 0 0.0
2008 Q1 3,908 4 0 1023.5
2007 Q4 3,103 0 0 0.0
2007 Q3 2,862 0 0 0.0
2007 Q2 5,110 1 1 195.7
2007 Q1 4,058 0 0 0.0
2006 Q4 3,907 0 0 0.0
2006 Q3 5,331 0 0 0.0
2006 Q2 4,473 1 0 223.6
2006 Q1 3,766 5 1 1327.7
2005 Q4 2,688 0 0 0.0
2005 Q3 4,473 0 0 0.0
2005 Q2 3,138 4 0 1274.7
2005 Q1 3,182 0 0 0.0
2004 Q4 2,899 2 1 689.9
2004 Q3 4,570 0 0 0.0
2004 Q2 3,650 1 0 274.0
2004 Q1 3,250 0 0 0.0
2003 Q4 2,479 0 0 0.0
2003 Q3 3,293 0 0 0.0
2003 Q2 2,464 4 1 1623.4
2003 Q1 3,768 0 0 0.0
2002 Q4 2,618 0 0 0.0
2002 Q3 3,027 2 0 660.7
2002 Q2 3,026 0 0 0.0
2002 Q1 2,919 1 0 342.6
2001 Q4 2,418 0 0 0.0
2001 Q3 2,344 0 0 0.0
2001 Q2 2,346 10 5 4262.6
2001 Q1 2,361 0 0 0.0
2000 Q4 653 0 0 0.0
2000 Q3 2,341 3 0 1281.5
2000 Q2 2,304 0 0 0.0
2000 Q1 1,946 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

25 on file

2026 · 1 incident

February 27, 2026 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

EE said the scraper seat was loose all day and jostled EE as EE drove it during EE's entire shift. EE complained of lower back pain.

2023 · 1 incident

March 17, 2023 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

Haul Truck operator was hauling dirt to the dump site, when they got too close to the edge of the haul road and ran up on the berm, flipping the bed of the haul truck over onto the road.

2022 · 2 incidents

June 12, 2022 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer STRIKING OR BUMPING
Black Hills Bentonite · Struck against stationary object

Employee stepped on the hitch of a fuel tank and hit EE's tailbone on the jack when stepping down. Reported to supervisor and kept working until 6/20/22. Went to Doctor on 6/20/22 and was excused from work for one week after a follow up appointment.

May 26, 2022 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

Employee had improperly adjusted their seat belt, and was driving over rough terrain in the mine site while operating a 627G Scraper. The jarring resulted in the employee bouncing up and striking the right side of their head against the climate controls. The employee suffered a cut on the right side of their head and received stitches at the Medical Center.

2021 · 3 incidents

November 9, 2021 WY · Metal/Non-Metal scraper-loader operator POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

Employee was stripping topsoil in a Cat 627G scraper when they over travelled the cut area and drove onto a steeper incline, lower in the pit and the scraper tipped over. Initial 2 visits to doctor cleared the employee for work. Different clinic diagnosed EE with a mild concussion and prescribed a steroid on 11/11/21. Employee will be able to return to work on 11/18/2021.

July 28, 2021 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Black Hills Bentonite · Over-exertion (Not Elsewhere Classified)

Employee was attempting to bolt a tire back on a tractor and was stabilizing the tire with left arm, when the tire shifted and jarred shoulder.

February 8, 2021 WY · Metal/Non-Metal scraper-loader operator OTHER
Black Hills Bentonite · Caught in, under or between a moving and a stationary object

EE was exiting scraper, when the wind caught the door & slammed it on EE's rt hand. Hand was caught between door & door jam. EE continued to work, & on 2/11/21, informed supervisor they wanted to get hand x-rayed. Hand was put in cast & EE given full work release. After working till 2/15/21 EE went back to dr & instructed to stay home till 3/4/21 when injury will be re-evaluated.

2020 · 1 incident

March 9, 2020 WY · Metal/Non-Metal scraper-loader operator POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

Scraper operator was push pulling, and upon disconnecting from the front scraper, ran over a rock and jarred their back.

2017 · 1 incident

July 12, 2017 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Black Hills Bentonite · Struck by flying object

The miner was pounding a pin out on a bulldozer, when they felt a pain in the left thigh, though there was minor bleeding the employee disregarded it as a scratch, and continued working. On 7/19/2018 the employee went to the doctor and had an x-ray performed, which revealed a sliver of metal embedded in the thigh that had to be surgically removed.

2015 · 1 incident

August 4, 2015 WY · Metal/Non-Metal scraper-loader operator HANDTOOLS (NONPOWERED)
Black Hills Bentonite · Caught in, under or between a moving and a stationary object

Employee pinched his hand while performing maintenance on a tractor used for field drying. He had his hand in between a pin and a hammer he was using to fix the machinery with. He needed 3 stitches in his hand!

2014 · 1 incident

September 13, 2014 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

EE drove scraper too close to edge of pile which caused it to slide down angle of repose for about 60 feet then roll completely over and land upright. The supervisor witnessed the event. The operator who was belted in was taken to the hospital for a full set of diagnostics and was released at about 10:30 with no suspected problems. He has not missed any work.

2011 · 2 incidents

October 5, 2011 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Black Hills Bentonite · Fall from machine

EE was exiting Cat 627G scraper when he missed his footing and fell to the ground, injuring his left shoulder, back and hip. He was taken to hospital for observation via company vehicle. His injuries were primarily bruising.

March 10, 2011 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

Two scrapers were engaged in push-pull operation when lead machine hit a rock, causing it to stop before rear machine could hook-up. Rear machine then ran into back of lead machine. Operator of rear machine strained back muscles.

2010 · 1 incident

July 19, 2010 WY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Black Hills Bentonite · Struck by... (Not Elsewhere Classified)

The employee had the hood on his semi pulled. While leaning into the engine compartment the wind came up. It caused the hood to close and the employee was struck in the back of the head. His head was pushed forward, knocking out his front teeth and causing all but three to be loose. All but three teeth were removed at a dental appointment.

2007 · 1 incident

June 8, 2007 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Black Hills Bentonite · Struck against a moving object

Employee was running dozer in reverse, resting right arm on rest when a rock fell in behind track, causing jolt to right shoulder as machine raised then came down hard. He thought shoulder would get better, waited a couple of weeks, a torn rotator cuff was verified-requiring surgery on July 9, 2007.

2006 · 1 incident

August 25, 2006 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

When leaving pit, employee thought he had hit button for cushion hitch, but scraper began to bounce uncontrollably. He hit his head on the left side window, twisted his back and had the wind knocked out of him. Back discomfort caused him to miss days at work. Seatbelt was being worn.

2005 · 2 incidents

September 21, 2005 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
Black Hills Bentonite · Struck against a moving object

While running a push-pull scraper operation in pit, the operator of the pull scraper pulled up a rock that the push scraper hit, causing the operator of the push scraper to be bounced, hitting his head on the roof of the machine.

August 21, 2005 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Black Hills Bentonite · Fall from machine

Employee was climbing onto a dozer tractor when the hand-hold he was using broke, causing him to fall back down to the ground on his already troubled left hip. An MRI revealed a fractured pelvic region. He will miss the remainder of the drying season, about mid September.

2004 · 1 incident

October 18, 2004 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Black Hills Bentonite · Fall onto or against objects

When dismounting D8R dozer the operator lost his balance and grabbed a hold of area beneath the step; which had sharp metal, causing him to slice left pinky finger. It required about four stitches to close. This accident did not require any missed time from work.

2002 · 1 incident

February 13, 2002 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Black Hills Bentonite · Over-exertion (Not Elsewhere Classified)

WHILE REMOVING A HYDRAULIC LINE FROM BENEATH THE FLOOR BOARD OF THE D8R DOZER, EE WAS LYING ON HIS STOMACH. HE REACHED UP TO GRAB A RAG AND HAVING TO TWIST A LITTLE TO HIS LEFT, HE PINCHED A N ERVE IN THE LEFT SIDE OF HIS NECK.

2000 · 1 incident

July 18, 2000 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Black Hills Bentonite · Over-exertion in lifting objects

EMPLOYEE BENT OVER TO PICK UP A CULVERT TO PUT INTO TRUCK. AS HE BEGAN TO LIFT, A SUDDEN PAIN OCCURRED IN HIS LOWER BACK, CAUSING HIM TO DROP IT TO THE GROUND.

1997 · 1 incident

May 9, 1997 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Black Hills Bentonite · Caught in, under or between a moving and a stationary object

WHEN ATTEMPTING TO SET CULVERT WITH DOZER, EMPLOYEE STEPPED OVER CULVERT AND SLIPPED IN A HOLE UNDER THE DOZER. THE DOZER SETTLED IN SOFT DIRT AND PINCHED FOOT.

1992 · 2 incidents

September 4, 1992 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

THE BRAKES ON A FRONT END LOADER THE EMPLOYEE WAS DRIVING FAILED GOING DOWN A HILL CAUSING THE DRIVER TO GO OVER A BANK. THE LOADER DID NOT TURN OVER BUT DID JOLT THE OPERATOR. OPERATOR WAS WE ARING A SEAT BELT AT THE TIME OF ACCIDENT.

February 18, 1992 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Black Hills Bentonite · Struck against a moving object

EMPL BACKED A D-8 CAT TOO FAR TO THE EDGE OF A NEW MINING OPERATION.THE MACHINE LOST FOOTING AND FELL OVER THE EDGE OF MINE SITE.MACHINE ROLLED AND LANDED ON ITS TOP WITH OCCUPANT FOUND WITH H EAD THROUGH BACK WINDOW.EMPL SUFFERED LACERATIONS TO HEAD AND NECK.

1991 · 1 incident

February 28, 1991 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Black Hills Bentonite · Struck against a moving object

CUTTING NEW PIT FOR MINING SCRAPER FELL OVER EDGE