Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Martin Marietta, LLC
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL13586
MINE PORTFOLIO
3 of 3 mines and facilities
2025-01-01 – 2026-10-13. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Brierfield Quarry0100004 · Active6/8 quarters reported | Bibb, ALSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 89,963 | 1 | 1 | 38.8 |
| Montevallo Quarry & Mill0100040 · Active6/8 quarters reported | Shelby, ALSurface · MSHA: Lime | 0 | 294,931 | 13 | 6 | 114.3 |
| O'Neal Quarry & Mill0100003 · Active6/8 quarters reported | Shelby, ALSurface · MSHA: Lime | 0 | 315,301 | 23 | 8 | 168.5 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
3 of 3 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Brierfield Quarry33.03806, -86.96333Open map ↗
- Montevallo Quarry & Mill33.16556, -86.62694Open map ↗
- O'Neal Quarry & Mill33.17778, -86.75889Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 3 mines listed under this operator were checked; 3 have reports in the available quarters. Totals use current ownership.
Hours worked
700,195reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 110,480 | 0.00 | 217 | 3/3 mines reporting |
| 2025 Q2 | 0 | 110,904 | 0.00 | 221 | 3/3 mines reporting |
| 2025 Q3 | 0 | 123,678 | 0.00 | 229 | 3/3 mines reporting |
| 2025 Q4 | 0 | 111,032 | 0.00 | 203 | 3/3 mines reporting |
| 2026 Q1 | 0 | 121,580 | 0.00 | 218 | 3/3 mines reporting |
| 2026 Q2 | 0 | 122,521 | 0.00 | 236 | 3/3 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
375 significant & substantial (S&S)
Accident records
150 records classified as fatality
Proposed penalties · USD
6,927.0031 of 37 violations with amounts
On-site inspection hours
321.5015 inspections · 15 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 3 | 0 | 615.00 | 2 | 0 | 1 | 29.5 |
| 2025-Q2 | 6 | 1 | 1,382.00 | 2 | 0 | 3 | 49.0 |
| 2025-Q3 | 3 | 1 | 894.00 | 0 | 0 | 4 | 79.5 |
| 2025-Q4 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q1 | 17 | 2 | 3,692.00 | 5 | 0 | 3 | 110.5 |
| 2026-Q2 | 0 | 0 | — | 4 | 0 | 1 | 4.0 |
| 2026-Q3 | 8 | 1 | 344.00 | 2 | 0 | 3 | 49.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- O'Neal Quarry & Mill · 0100003
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
After dumping the Vac truck at the quarry lime cells, the employee started the re-enter the truck. As EE started to climb back into the truck, EE stated that EE slipped and fell to the ground. We have video evidence the leads us to believe that the employee was injured prior to the alleged fall at the lime cell area.
- Montevallo Quarry & Mill · 0100040
56.11001
- Montevallo Quarry & Mill · 0100040
56.20003(a) · S&S
- Montevallo Quarry & Mill · 0100040
56.11003
- Montevallo Quarry & Mill · 0100040
56.14132(a)
- Montevallo Quarry & Mill · 0100040
56.14112(b)
- Montevallo Quarry & Mill · 0100040
56.13011
- Montevallo Quarry & Mill · 0100040
Regular Safety and Health Inspection · 23.3 on-site hours
- Brierfield Quarry · 0100004
Regular Safety and Health Inspection · 7.8 on-site hours
- O'Neal Quarry & Mill · 0100003
50.30(a) · $151.00 proposed
- Brierfield Quarry · 0100004
56.14130(g) · $193.00 proposed
- O'Neal Quarry & Mill · 0100003
POWERED HAULAGE · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
A miner pulled up in company pickup to the sign at the back gate that is used to communicate when blasting is in process or no Blasting in process that day. Employee left vehicle in drive while correcting the sign and as they pulled away from sign the bottom of the sign struck their left thumb causing a laceration to their Left Thumb, closest joint to tip of left thumb.
- O'Neal Quarry & Mill · 0100003
Regular Safety and Health Inspection · 18.0 on-site hours
- Montevallo Quarry & Mill · 0100040
Verbal Hazard Complaint Inspections · 4.0 on-site hours
- O'Neal Quarry & Mill · 0100003
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
EE was climbing on to the bumper of a dump truck to access the engine compartment. While climbing EE heard and felt a pop in EE's left knee.
- O'Neal Quarry & Mill · 0100003
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
While working on bottom of the scaffold deck the employee asked another employee on the scaffold deck above EE for a drill. As the employee looked up to retrieve the tool, EE felt something enter EE's eye.
- O'Neal Quarry & Mill · 0100003
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Demo in the preheater and the lime got behind gloves causing irritation to skin
- O'Neal Quarry & Mill · 0100003
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
While moving an electric motor to a cart, the motor shift, smashing the tip of the IW's left thumb resulting in a abrasion and a fracture.
- Montevallo Quarry & Mill · 0100040
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
EE had clocked out and was in the contractor parking lot at EE's car. EE removed EE's boots and banged them together to shake off excess mud, dirt, and lime, which got into EE's left eye.
- Brierfield Quarry · 0100004
Regular Safety and Health Inspection · 7.5 on-site hours
- Montevallo Quarry & Mill · 0100040
56.20003(a) · $151.00 proposed
- O'Neal Quarry & Mill · 0100003
56.20003(a) · $151.00 proposed
- O'Neal Quarry & Mill · 0100003
56.16005 · $151.00 proposed
- O'Neal Quarry & Mill · 0100003
56.12002 · $151.00 proposed
- O'Neal Quarry & Mill · 0100003
56.14112(b) · S&S · $642.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
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.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.