Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Impoundment Spot Inspection
Sunol Aggregates · 04018591.8 on-site hours reported
Regular Safety and Health Inspection
Texas Quarry · 180000925.5 on-site hours reported
Safety defects; examination, correction and records.
Black Rock Quarry & Plant · 030001130 CFR 56.14100(b) · $151.00 proposed penalty
Provision and maintenance of self-rescue devices.
Fort Dodge Mine · 130003230 CFR 57.15030 · $151.00 proposed penalty
Spot Inspection
Petersburg Sand · 15168955.5 on-site hours reported
Escapeways and refuges.
Kentucky Avenue Mine · 120176230 CFR 57.11050(a) · $4,383.00 proposed penalty
Horns and backup alarms.
Bridgeport Stone Plant · 410000730 CFR 56.14132(a) · $151.00 proposed penalty
Spot Inspection
Sanger Aggregate Plant · 040579911.5 on-site hours reported
Regular Safety and Health Inspection
Barnhart Quarry · 230246915.5 on-site hours reported
Records of training.
Sanger Aggregate Plant · 040579930 CFR 46.9(b)(2) · $151.00 proposed penalty
Training plans.
Sanger Aggregate Plant · 040579930 CFR 46.3(b)(1) · $151.00 proposed penalty
Horns and backup alarms.
Sanger Aggregate Plant · 040579930 CFR 56.14132(b)(1)(i) · $193.00 proposed penalty
Safety defects; examination, correction and records.
Barnhart Quarry · 230246930 CFR 56.14100(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Barnhart Quarry · 230246930 CFR 56.14100(b) · $151.00 proposed penalty
Unguarded conveyors with adjacent travelways.
FAIRFIELD GRAVEL · 330139630 CFR 56.14109(a) · $151.00 proposed penalty
Moving machine parts.
Bridgeport Stone Plant · 410000730 CFR 56.14107(a) · $151.00 proposed penalty
Requirement for container labels.
Bridgeport Stone Plant · 410000730 CFR 47.41(a) · $151.00 proposed penalty
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Bridgeport Stone Plant · 410000730 CFR 50.30(a) · $151.00 proposed penalty
Warning signs.
Bridgeport Stone Plant · 410000730 CFR 56.4101 · $151.00 proposed penalty
Identification of power switches.
Granite Canyon Quarry · 480001830 CFR 56.12018 · $245.00 proposed penalty
Conveyor start-up warnings.
Granite Canyon Quarry · 480001830 CFR 56.14201(b) · Significant and substantial (S&S) · $549.00 proposed penalty
Moving machine parts.
Granite Canyon Quarry · 480001830 CFR 56.14107(a) · $151.00 proposed penalty
Machinery
Hunter Stone · 4105230Days restricted activity only
Accident narrative
Employee cutting underneath of catwalk on CAT 777 haul truck with 90 degree air die grinder cut top of left hand. Cut resulted in five stitches.
Regular Safety and Health Inspection
Durham Mine & Mill · 130122553.3 on-site hours reported
Regular Safety and Health Inspection
Burlington Quarry · 310004215.0 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.