Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Handrails and toeboards.
Boonsboro Quarry · 180002430 CFR 56.11002 · $151.00 proposed penalty
Insulation and fittings for power wires and cables.
Midlothian Quarry · 440376730 CFR 56.12008 · $151.00 proposed penalty
Regular Safety and Health Inspection
Boonsboro Quarry · 180002416.5 on-site hours reported
Regular Safety and Health Inspection
MN Portable #4 · 21032875.5 on-site hours reported
Regular Safety and Health Inspection
CAYCE QUARRY · 380001616.0 on-site hours reported
Regular Safety and Health Inspection
Midlothian Quarry · 440376718.3 on-site hours reported
Flying or falling materials.
AMES MINE · 130001430 CFR 57.14110 · $151.00 proposed penalty
Construction and maintenance of guards.
Fort Calhoun Underground Mine · 250130030 CFR 57.14112(b) · $151.00 proposed penalty
Identification of power switches.
Fort Calhoun Underground Mine · 250130030 CFR 57.12018 · $151.00 proposed penalty
Abandoned electric circuits.
Fort Calhoun Underground Mine · 250130030 CFR 57.4011 · $151.00 proposed penalty
Parking procedures for unattended equipment.
CAYCE QUARRY · 380001630 CFR 56.14207 · $209.00 proposed penalty
Correction of hazardous conditions.
Crab Orchard Mine and Mill · 400008730 CFR 57.3200 · $151.00 proposed penalty
Regular Safety and Health Inspection
O'Neal Quarry · 01030764.8 on-site hours reported
Regular Safety and Health Inspection
Castle Hayne Quarry · 310006319.0 on-site hours reported
Regular Safety and Health Inspection
Benson Quarry · 310197918.8 on-site hours reported
Regular Safety and Health Inspection
Anderson Mine and Mill · 400002228.0 on-site hours reported
Regular Safety and Health Inspection
Crab Orchard Mine and Mill · 400008748.3 on-site hours reported
Brakes.
AMES MINE · 130001430 CFR 57.14101(a)(2) · $151.00 proposed penalty
Regular Safety and Health Inspection
ELIZABETHTON QUARRY · 400307512.5 on-site hours reported
Inspection and cover plates.
Noblesville Stone · 120217630 CFR 57.12032 · Significant and substantial (S&S) · $2,712.00 proposed penalty
Examination of working places.
Rio Medina · 410359430 CFR 56.18002(c) · $151.00 proposed penalty
Examination of working places.
Rio Medina · 410359430 CFR 56.18002(b) · $151.00 proposed penalty
Parking procedures for unattended equipment.
Rio Medina · 410359430 CFR 56.14207 · $151.00 proposed penalty
Regular Safety and Health Inspection
HOMER QUARRY · 09009588.5 on-site hours reported
Regular Safety and Health Inspection
Carmel Sand & Gravel · 120212414.8 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.