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Liberty Ranch Metal/Non-Metal

Martin Marietta Materials Southwest, LLC · Surface

Controlled by Martin Marietta Materials Inc

Hardin, Liberty County, TX · Active

MSHA Mine ID: 4105268

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Email me when a new MSHA incident is filed at Liberty Ranch.

Fatalities: 1
Total incidents: 1
Years on record: 2021
Latest incident: Dec 2021

Compliance record

MSHA citations since 2018

citations

significant & substantial

$18,159

proposed penalties

$6,600

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	Per 1M hrs
2025 Q4	1,610	0	0.0
2025 Q2	232	0	0.0
2025 Q1	1,355	0	0.0
2024 Q4	2,363	0	0.0
2024 Q2	4,946	0	0.0
2024 Q1	4,926	0	0.0
2023 Q4	6,259	0	0.0
2023 Q3	5,054	1	197.9

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

1 recorded

December 13, 2021 TX · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver Fatality · POWERED HAULAGE

Martin Marietta Materials Southwest, LLC · Caught in, under or between a moving and a stationary object

Customer truck driver pulled into tarping area behind another truck and failed to set parking brake before exiting the truck. The driver did not use wheel chocks as required. The customer truck driver was fatally injured when customer's truck moved forward and pinned customer truck driver against the other drivers truck.