85% of proposed penalties paid to date, a $55,469 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
549
inspections on record
14,708
inspection hours
6.8
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.
1,005 citations across 14,708 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘDifferences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$375K
proposed penalties
$324K
current assessed
$320K
paid to date
$4K
outstanding
973 assessments are final orders; 43 contested dockets.
As of the most recent assessment on 2026-04-22.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
January 30, 2023MO · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techFatality · SLIP OR FALL OF PERSON
Martin Marietta Kansas City, LLC · Fall from scaffolds, walkways, platforms
An employee was fatally injured when they fell from an opening in an elevated catwalk.
September 28, 2005MO · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techFatality · POWERED HAULAGE
Martin Marietta Kansas City, LLC · Struck against stationary object
Employee was driving a Superior Bowen's (Contractor) water truck down the slope into mine and lost control, impacting a dome out (located at 2N- 0 E/W) at the bottom of slope resulting in ramping up of truck over and through to other side.
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