Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Alden Quarry and Shop · 13002289.8 on-site hours reported
Regular Safety and Health Inspection
New Miami Plant · 33043830.0 on-site hours reported
Combustible waste.
Walstrum Quarry · 050393530 CFR 56.4104(b)
Brakes.
Alden Quarry and Shop · 130022830 CFR 56.14101(a)(2)
Identification of power switches.
Alden Quarry and Shop · 130022830 CFR 56.12018
Examination of working places.
Fort Calhoun Underground Mine · 250130030 CFR 57.18002(a)
Verbal Hazard Complaint Inspections
Benson Quarry · 31019792.5 on-site hours reported
Warning signs.
Walstrum Quarry · 050393530 CFR 56.4101
Warning signs.
Fort Calhoun Underground Mine · 250130030 CFR 57.4101
Escape routes.
Fort Calhoun Underground Mine · 250130030 CFR 57.11051(b)
Regular Safety and Health Inspection
Walstrum Quarry · 05039350.0 on-site hours reported
103 (g) Written Notification Hazard Complaint Inspectio
Walstrum Quarry · 05039350.0 on-site hours reported
Regular Safety and Health Inspection
Fort Calhoun Underground Mine · 25013000.0 on-site hours reported
Regular Safety and Health Inspection
Junction City Quarry · 090102912.0 on-site hours reported
Regular Safety and Health Inspection
Carmel Sand & Gravel · 12021240.0 on-site hours reported
Unguarded conveyors with adjacent travelways.
Junction City Quarry · 090102930 CFR 56.14109(a)
Inspection and cover plates.
Junction City Quarry · 090102930 CFR 56.12032
Inspection.
Junction City Quarry · 090102930 CFR 56.4201(a)(2)
Audiometric testing.
Waverly Sand & Gravel · 120203830 CFR 62.170
Horns and backup alarms.
Carmel Sand & Gravel · 120212430 CFR 56.14132(a) · Significant and substantial (S&S)
Handling of materials
O'Neal Quarry & Mill · 0100003Days away from work only
Accident narrative
While clearing bridged rams on a kiln preheater, hot material blew back through a porthole and burned the employee.
Regular Safety and Health Inspection
Snyder · 340165113.0 on-site hours reported
Parking procedures for unattended equipment.
Lotawana Quarry · 230188930 CFR 56.14207
Electrical conductors.
Snyder · 340165130 CFR 56.12004
Safety defects; examination, correction and records.
Snyder · 340165130 CFR 56.14100(b)
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.