Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Identification of power switches.
Mill Creek · 340128530 CFR 56.12018 · $151.00 proposed penalty
Hand-held power tools.
Mill Creek · 340128530 CFR 56.14116(a) · $151.00 proposed penalty
Machinery, equipment, and tools.
Clifton Plant · 410001330 CFR 56.14205 · $226.00 proposed penalty
Controls and switches.
Clifton Plant · 410001330 CFR 56.12002 · $226.00 proposed penalty
Parking procedures for unattended equipment.
Martin Marietta Merkel Plant · 410384830 CFR 56.14207 · $151.00 proposed penalty
Electrical conductors.
Webberville S&G · 410436330 CFR 56.12004 · $245.00 proposed penalty
Insulation and fittings for power wires and cables.
Webberville S&G · 410436330 CFR 56.12008 · $245.00 proposed penalty
Roll-over protective structures (ROPS) and seat belts.
Granite Canyon Quarry · 480001830 CFR 56.14130(i) · $1,431.00 proposed penalty
Regular Safety and Health Inspection
Tidewater Oakland Marine Aggregate · 04030022.8 on-site hours reported
Spot Inspection
Moore Quarry · 13021880.5 on-site hours reported
Regular Safety and Health Inspection
Fountain Quarry · 310006526.0 on-site hours reported
Regular Safety and Health Inspection
CLARKS QUARRY · 310200918.0 on-site hours reported
Regular Safety and Health Inspection
Mill Creek · 340128515.0 on-site hours reported
Regular Safety and Health Inspection
Old Charleston Sand · 38007023.3 on-site hours reported
Regular Safety and Health Inspection
Forks of the River Quarry · 400161026.3 on-site hours reported
Examination of working places.
Moore Quarry · 130218830 CFR 56.18002(a) · $818.00 proposed penalty
Construction and maintenance of guards.
Bowling Green South Quarry · 150002530 CFR 56.14112(a)(1) · $151.00 proposed penalty
Construction and maintenance of guards.
Bowling Green South Quarry · 150002530 CFR 56.14112(a)(1) · $151.00 proposed penalty
Stationary grinding machines.
CLARKS QUARRY · 310200930 CFR 56.14115(b) · $151.00 proposed penalty
Brakes.
CLARKS QUARRY · 310200930 CFR 56.14101(a)(2) · $245.00 proposed penalty
Locking transformer enclosures.
Clifton Plant · 410001330 CFR 56.12068 · $336.00 proposed penalty
Machinery, equipment, and tools.
Clifton Plant · 410001330 CFR 56.14205 · $226.00 proposed penalty
Inspection and cover plates.
Clifton Plant · 410001330 CFR 56.12032 · $226.00 proposed penalty
Slip or fall of person
Irwindale Aggregates · 0401838Dys awy frm wrk & restrctd act
Accident narrative
Employee fell while descending from 988k loader
Regular Safety and Health Inspection
Alabaster Mill · 01031750.0 on-site hours reported
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.