ALL STATUSES / OPERATOR PORTFOLIO

Heidelberg Materials US Cement LLC

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR IDL17551

MINE PORTFOLIO

15 of 15 mines and facilities

2025-01-01 – 2026-10-18. All statuses records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
EVANSVILLE PLANT3600185 · Active6/8 quarters reportedBerks, PAFacility · MSHA: Cement0413,6585111212.0
Leeds Plant0100043 · Active6/8 quarters reportedJefferson, ALFacility · MSHA: Cement0381,013703225.8
Logansport Cement Plant1200065 · Active6/8 quarters reportedCass, INFacility · MSHA: Cement0324,803575236.5
Mason City Plant1300095 · Active6/8 quarters reportedCerro Gordo, IAFacility · MSHA: Cement0439,6492677486.5
Mitchell Plant1200063 · Active6/8 quarters reportedLawrence, INSurface · MSHA: Cement0599,503417362.8
Nazareth Plant I3600190 · Active6/8 quarters reportedNorthampton, PAFacility · MSHA: Cement0542,3911809534.0
Oley #23604849 · IntermittentBerks, PASurface · MSHA: Crushed, Broken Limestone NEC——003.5
UNION BRIDGE MD1800017 · Active6/8 quarters reportedCarroll, MDFacility · MSHA: Cement0518,335868324.3
Glens Falls Plant3000585 · AbandonedWarren, NYFacility · MSHA: Cement——00—
Glens Falls Quarry3000044 · AbandonedSaratoga, NYSurface · MSHA: Crushed, Broken Limestone NEC——00—
NEW WINDSOR MD1800733 · AbandonedCarroll, MDSurface · MSHA: Crushed, Broken Limestone NEC——00—
Oley No 1 Quarry3600186 · AbandonedBerks, PAFacility · MSHA: Cement——00—
Richmond NO 5 Quarry3604407 · AbandonedBerks, PASurface · MSHA: Crushed, Broken Limestone NEC——00—
Speed Cement Plant1200066 · AbandonedClark, INFacility · MSHA: Cement——00—
TILBURY QUARRY4500011 · AbandonedWhatcom, WASurface · MSHA: Construction Sand and Gravel——00—

LOCATION

Portfolio map

14 of 15 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

752

165 significant & substantial (S&S)

  1. 2025 Q191
  2. 2025 Q2128
  3. 2025 Q339
  4. 2025 Q447
  5. 2026 Q1188
  6. 2026 Q250
  7. 2026 Q3200
  8. 2026 Q4 *9

Accident records

50

0 records classified as fatality

  1. 2025 Q112
  2. 2025 Q24
  3. 2025 Q33
  4. 2025 Q46
  5. 2026 Q18
  6. 2026 Q28
  7. 2026 Q39
  8. 2026 Q4 *0

Proposed penalties · USD

1,707,044.00

735 of 752 violations with amounts

  1. 2025 Q1156,964
  2. 2025 Q2258,728
  3. 2025 Q325,556
  4. 2025 Q495,419
  5. 2026 Q1417,884
  6. 2026 Q2214,374
  7. 2026 Q3538,119
  8. 2026 Q4 *—

On-site inspection hours

2,385.25

108 inspections · 108 with hours

  1. 2025 Q1215.50
  2. 2025 Q2461.75
  3. 2025 Q3145.25
  4. 2025 Q4232.25
  5. 2026 Q1512.50
  6. 2026 Q2280.75
  7. 2026 Q3522.25
  8. 2026 Q4 *15.00
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q19116156,964.0012011215.5
2025-Q212818258,728.004010461.8
2025-Q3391025,556.003011145.3
2025-Q4471095,419.006010232.3
2026-Q118849417,884.008021512.5
2026-Q25013214,374.008018280.8
2026-Q320048538,119.009026522.3
2026-Q4 *91—00115.0

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. inspectionF03EFD6
    UNION BRIDGE MD · 1800017

    Compliance Follow-up Inspection · 1.8 on-site hours

  2. accident220260890080
    Mitchell Plant · 1200063

    ENTRAPMENT · ACCIDENT ONLY

    Accident narrative

    Elevator was in the process of being test ran after previous repairs, during test run, elevator and one miner was stopped at the top landing unable to exit or move. Repairman was onsite and able to open the elevator and move to ground level. Miner was in the elevator for 33 minutes.

  3. inspectionF0393D7
    Nazareth Plant I · 3600190

    Compliance Follow-up Inspection · 21.8 on-site hours

  4. inspectionF0370A0
    Mason City Plant · 1300095

    Spot Inspection · 1.0 on-site hours

  5. inspectionF03709F
    Mason City Plant · 1300095

    Verbal Hazard Complaint Inspections · 2.5 on-site hours

  6. violation5114425
    Mason City Plant · 1300095

    56.18002(a) · S&S · $9,757.00 proposed

  7. violation5114424
    Mason City Plant · 1300095

    56.16002(c) · S&S · $9,757.00 proposed

  8. violation5077940
    Nazareth Plant I · 3600190

    56.4130(b) · $151.00 proposed

  9. inspectionF02E2C7
    Nazareth Plant I · 3600190

    Spot Inspection · 4.0 on-site hours

  10. inspectionF02AF86
    Mason City Plant · 1300095

    Compliance Follow-up Inspection · 0.5 on-site hours

  11. inspectionF025360
    EVANSVILLE PLANT · 3600185

    103 (g) Written Notification Hazard Complaint Inspectio · 6.3 on-site hours

  12. violation5114618
    Mason City Plant · 1300095

    56.5001(a)/56.5005 · $151.00 proposed

  13. violation5114617
    Mason City Plant · 1300095

    56.5001(a)/56.5005 · $883.00 proposed

  14. accident220260650006
    Nazareth Plant I · 3600190

    MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee was using a grinder with a wire wheel when EE stood up and accidentally hit the trigger of the grinder causing it to kick back and get bound up on EE's left forearm causing a laceration.

  15. violation5077931
    Nazareth Plant I · 3600190

    56.20003(a) · $267.00 proposed

  16. violation5077930
    Nazareth Plant I · 3600190

    56.14112(a)(1) · $177.00 proposed

  17. inspectionF0243C8
    Mitchell Plant · 1200063

    Verbal Hazard Complaint Inspections · 2.5 on-site hours

  18. violation5076858
    Nazareth Plant I · 3600190

    56.4201(a)(2) · $151.00 proposed

  19. violation5076857
    Nazareth Plant I · 3600190

    56.12028 · $398.00 proposed

  20. violation5071295
    Nazareth Plant I · 3600190

    56.5001(a)/56.5005 · $313.00 proposed

  21. violation5077929
    Nazareth Plant I · 3600190

    56.14107(a)

  22. violation5077925
    Nazareth Plant I · 3600190

    56.18002(a)(1)

  23. violation5076856
    Nazareth Plant I · 3600190

    56.14112(a) · $504.00 proposed

  24. violation5076855
    Nazareth Plant I · 3600190

    56.20003(a) · $366.00 proposed

  25. violation5114602
    Mason City Plant · 1300095

    47.41(a) · $697.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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.