Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
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
Construction and maintenance of guards.
Bridgeport Stone Plant · 410000730 CFR 56.14112(b) · $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
Slip or fall of person
Fort Calhoun Underground Mine · 2501300Days restricted activity only
Accident narrative
Employee rolled their left ankle while getting out of a pickup. The injury became reportable after a doctor placed employee on restrictions on 02/26/2025
Handling of materials
Martin Marietta - Woodville Lime & Stone · 3300156Dys awy frm wrk & restrctd act
Accident narrative
Maintenance repairman performing non routine tasks, improperly moved object.
Regular Safety and Health Inspection
Jones Mill Quarry · 030158622.0 on-site hours reported
Regular Safety and Health Inspection
HATTON QUARRY · 030161419.0 on-site hours reported
Regular Safety and Health Inspection
North Indianapolis Quarry & Mill · 120000214.8 on-site hours reported
Regular Safety and Health Inspection
Iron Mountain Quarry · 23002108.8 on-site hours reported
Impoundment Spot Inspection
Plant #65 · 23019221.0 on-site hours reported
Regular Safety and Health Inspection
Apex Quarry and Plant · 260008129.5 on-site hours reported
Regular Safety and Health Inspection
I-75 QUARRY · 400124717.0 on-site hours reported
Regular Safety and Health Inspection
Bridgeport Stone Plant · 410000737.8 on-site hours reported
Safety defects; examination, correction and records.
HATTON QUARRY · 030161430 CFR 56.14100(b) · $151.00 proposed penalty
Air receiver tanks.
HATTON QUARRY · 030161430 CFR 56.13011 · $151.00 proposed penalty
Brakes.
HATTON QUARRY · 030161430 CFR 56.14101(a)(2) · $151.00 proposed penalty
Handtools (nonpowered)
Clifton Plant · 4100013No dys awy frm wrk,no rstr act
Accident narrative
The employee was installing brackets for form scaffolding. While EE was trying to shift an alignment rail, EE had to loosen the alignment bolt. While hitting the bolt, the hammer ricocheted off the bolt and into EE's left hand EE had placed on a 4x4 form brace.
Requirement for container labels.
Sanger Aggregate Plant · 040579930 CFR 47.41(a)(1) · $226.00 proposed penalty
Inspection and cover plates.
Sanger Aggregate Plant · 040579930 CFR 56.12032 · $226.00 proposed penalty
Regular Safety and Health Inspection
Sanger Aggregate Plant · 040579910.8 on-site hours reported
Regular Safety and Health Inspection
Platte Sand and Gravel · 05044184.8 on-site hours reported
Compliance Follow-up Inspection
Fort Dodge Mine · 13000321.3 on-site hours reported
Inspection and cover plates.
Sanger Aggregate Plant · 040579930 CFR 56.12032 · $288.00 proposed penalty
Inspection and cover plates.
Sanger Aggregate Plant · 040579930 CFR 56.12032 · $288.00 proposed penalty
Mine Idle Activity
Huntsville Quarry · 23020040.8 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.