Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Records of training.
TIN TOP SAND AND GRAVEL PLANT · 410285230 CFR 46.9 · $151.00 proposed penalty
Regular Safety and Health Inspection
Black Rock Quarry & Plant · 030001112.0 on-site hours reported
Regular Safety and Health Inspection
Noblesville Stone · 120217626.5 on-site hours reported
Regular Safety and Health Inspection
AMES MINE · 130001461.3 on-site hours reported
Regular Safety and Health Inspection
Durham Mine & Mill · 130122529.3 on-site hours reported
Verbal Hazard Complaint Inspections
Sunflower Quarry · 140155610.8 on-site hours reported
Regular Safety and Health Inspection
Troy West Quarry · 230232421.5 on-site hours reported
Regular Safety and Health Inspection
Fort Calhoun Underground Mine · 250130050.3 on-site hours reported
Regular Safety and Health Inspection
BELGRADE QUARRY · 310006419.0 on-site hours reported
Regular Safety and Health Inspection
Matthews Quarry · 310208423.0 on-site hours reported
Compliance Follow-up Inspection
Mill Creek · 34012850.5 on-site hours reported
Regular Safety and Health Inspection
Davis Quarry · 340129910.3 on-site hours reported
Regular Safety and Health Inspection
WATAUGA QUARRY · 400012418.5 on-site hours reported
Regular Safety and Health Inspection
Smyrna Quarry & Mill · 400294031.0 on-site hours reported
Regular Safety and Health Inspection
Beckmann Quarry · 410133512.8 on-site hours reported
Regular Safety and Health Inspection
TIN TOP SAND AND GRAVEL PLANT · 410285210.5 on-site hours reported
Safety defects; examination, correction and records.
Sunflower Quarry · 140155630 CFR 56.14100(b) · $245.00 proposed penalty
Safety defects; examination, correction and records.
Sunflower Quarry · 140155630 CFR 56.14100(b) · $245.00 proposed penalty
Operators stations.
Sunflower Quarry · 140155630 CFR 56.14103(a) · $151.00 proposed penalty
Gauges and regulators.
North East Quarry · 180041730 CFR 56.4602 · $151.00 proposed penalty
Construction and maintenance of guards.
Troy West Quarry · 230232430 CFR 56.14112(b) · $151.00 proposed penalty
Storage facilities.
Smyrna Quarry & Mill · 400294030 CFR 56.4430(a)(3) · Significant and substantial (S&S) · $245.00 proposed penalty
Use of ladders.
Beckmann Quarry · 410133530 CFR 56.11011 · $151.00 proposed penalty
Electrical conductors.
Beckmann Quarry · 410133530 CFR 56.12004 · $151.00 proposed penalty
Slip or fall of person
Weeping Water Mine · 2500998Dys awy frm wrk & restrctd act
Accident narrative
Employee was injured when they fell walking to the troop carrier. Injury became reportable on 11-18-25 when an orthopedic specialist diagnosed a left shoulder partial rotator cuff tear and left shoulder proximal humerus fracture. Physical therapy was also ordered.
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.