Mining Incidents

RUDOLPH-PIT #2 Metal/Non-Metal

Mantle Mining Company · Surface
Controlled by Justin R Dudenhoeffer
Rolla, Gasconade County, MO  ·  Abandoned
MSHA Mine ID: 2302102

MSHA record for RUDOLPH-PIT #2 (mine ID 2302102). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Inspection activity
MSHA inspections since 2000
5
inspections on record
21
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: 21 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
  1. Mantle Mining Company 1994 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2004 0
2003 1
2002 2
2001 3
2000 3
Source: MSHA quarterly employment and production, updated weekly.

RUDOLPH-PIT #2 sits in Gasconade County, Missouri, where the Census mining category is 0.5% 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.
Gasconade County, Missouri · Population 14,774
0.5%
Mining share of county employment
$65,096
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
2004 Q1 0 0 0
2003 Q4 0 0 0
2003 Q3 0 0 0
2003 Q2 390 0 0 0.0
2003 Q1 684 0 0 0.0
2002 Q4 520 0 0 0.0
2002 Q3 952 0 0 0.0
2002 Q2 130 0 0 0.0
Show 9 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2002 Q1 703 0 0 0.0
2001 Q4 312 0 0 0.0
2001 Q3 1,021 0 0 0.0
2001 Q2 967 0 0 0.0
2001 Q1 459 0 0 0.0
2000 Q4 1,222 0 0 0.0
2000 Q3 1,222 0 0 0.0
2000 Q2 1,117 0 0 0.0
2000 Q1 1,374 0 0 0.0

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.