Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Moving machine parts.
VANCE QUARRY · 010302230 CFR 56.14107(a) · $151.00 proposed penalty
Requirements for written safety program.
AMES MINE · 130001430 CFR 57.23003(b) · $151.00 proposed penalty
Electrical conductors.
Durham Mine & Mill · 130122530 CFR 57.12004 · $151.00 proposed penalty
Brakes.
Fort Calhoun Underground Mine · 250130030 CFR 57.14101(a)(2) · $151.00 proposed penalty
Safe access.
Matthews Quarry · 310208430 CFR 56.11001 · $755.00 proposed penalty
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
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
Construction and maintenance of guards.
Troy West Quarry · 230232430 CFR 56.14112(b) · $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.
Machinery, equipment, and tools.
Granite Canyon Quarry · 480001830 CFR 56.14205 · $245.00 proposed penalty
Regular Safety and Health Inspection
Noblesville Sand & Gravel · 120199410.5 on-site hours reported
Regular Safety and Health Inspection
Grantville Quarry · 14014726.0 on-site hours reported
Regular Safety and Health Inspection
Loamy Sand and Gravel · 38007217.0 on-site hours reported
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Sully Mine · 130006330 CFR 50.30(a) · $151.00 proposed penalty
Examination of working places.
Sully Mine · 130006330 CFR 57.18002(d) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Mill Creek · 340128530 CFR 56.14100(b) · $151.00 proposed penalty
Regular Safety and Health Inspection
Sully Mine · 130006326.5 on-site hours reported
Regular Safety and Health Inspection
Granite Canyon Quarry · 480001838.8 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.