Mining Incidents

Roadrunner Screen: 18 MSHA citations Metal/Non-Metal

Controlled by Summit Materials LLC
Rupert, Minidoka County, ID  ·  Abandoned
MSHA Mine ID: 1001916

Roadrunner Screen has $2K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2000
18
citations
1
significant & substantial
$1,587
proposed penalties
$1,507
paid to date
95% of proposed penalties paid to date, a $80 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
19
inspections on record
273
inspection hours
n/a
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.
Rate withheld: 273 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Roadrunner Screen has $2K in proposed MSHA penalties and $0 outstanding across 1 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
18 assessments are final orders; 1 contested dockets.
Of $400 in penalties contested before the Commission, $320 was upheld in final decisions.
As of the most recent assessment on 2009-09-22.
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.
5.6%
significant & substantial
5.6%
high negligence or reckless
5.6%
reasonably likely or greater
38.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 16.7% low, 77.8% moderate, 5.6% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
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
WEST20030286M Settlement Barbour 2003 $400 → $320
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: 2005-06-14, 21 years ago
0%
of limit-tested samples over the exposure limit
5
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg3
  • Quartz, respirable, >1% Qtz1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2005-06-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-10-09 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-10-09 Quartz, respirable, >1% Qtz 0.42 2.33 0.18 Front-end Loader Operator
2002-01-24 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-01-24 Unlisted Particulate, respirable, <1% Qtz 0.22 Front-end Loader 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.
Ownership history
  1. Triple C Concrete Inc 1995 to 2011
  2. Triple C Concrete Inc 2011 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2013 1
2011 2
2010 2
2009 2
2008 2
2007 2
2006 2
2005 2
2004 2
2003 2
2002 2
2001 2
2000 1
Source: MSHA quarterly employment and production, updated weekly.

Roadrunner Screen sits in Minidoka County, Idaho, where the Census mining category is 0.0% 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.
Minidoka County, Idaho · Population 21,922
0.0%
Mining share of county employment
$70,060
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
2013 Q4 0 0 0
2013 Q2 82 0 0 0.0
2011 Q1 205 0 0 0.0
2010 Q4 568 0 0 0.0
2010 Q3 592 0 0 0.0
2010 Q2 632 0 0 0.0
2010 Q1 536 0 0 0.0
2009 Q4 544 0 0 0.0
Show 39 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2009 Q3 490 1 0 2040.8
2009 Q2 610 0 0 0.0
2009 Q1 513 0 0 0.0
2008 Q4 670 2 0 2985.1
2008 Q3 566 0 0 0.0
2008 Q2 1,009 0 0 0.0
2008 Q1 420 2 0 4761.9
2007 Q4 976 0 0 0.0
2007 Q3 887 0 0 0.0
2007 Q2 701 0 0 0.0
2007 Q1 583 0 0 0.0
2006 Q4 618 1 0 1618.1
2006 Q3 589 0 0 0.0
2006 Q2 675 0 0 0.0
2006 Q1 501 0 0 0.0
2005 Q4 643 2 0 3110.4
2005 Q3 692 0 0 0.0
2005 Q2 599 0 0 0.0
2005 Q1 580 0 0 0.0
2004 Q4 809 0 0 0.0
2004 Q3 784 0 0 0.0
2004 Q2 666 0 0 0.0
2004 Q1 718 0 0 0.0
2003 Q4 920 0 0 0.0
2003 Q3 819 0 0 0.0
2003 Q2 637 0 0 0.0
2003 Q1 676 0 0 0.0
2002 Q4 643 2 1 3110.4
2002 Q3 740 0 0 0.0
2002 Q2 599 0 0 0.0
2002 Q1 69 1 0 14492.8
2001 Q4 565 0 0 0.0
2001 Q3 782 0 0 0.0
2001 Q2 620 0 0 0.0
2001 Q1 724 1 0 1381.2
2000 Q4 526 0 0 0.0
2000 Q3 696 0 0 0.0
2000 Q2 622 0 0 0.0
2000 Q1 659 6 0 9104.7

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.