ACTIVE / 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

7 of 7 mines and facilities

2025-01-01 – 2026-10-18. Active 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
UNION BRIDGE MD1800017 · Active6/8 quarters reportedCarroll, MDFacility · MSHA: Cement0518,335868324.3

LOCATION

Portfolio map

7 of 7 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

2,381.75

107 inspections · 107 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 Q3518.75
  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-Q320048538,119.009025518.8
2026-Q4 *91—00115.0

Most cited CFR sections

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

Safety activity

  1. violation5010464
    Logansport Cement Plant · 1200065

    56.4200(b)(2) · $432.00 proposed

  2. violation5010463
    Logansport Cement Plant · 1200065

    56.12019 · $432.00 proposed

  3. violation5010462
    Logansport Cement Plant · 1200065

    56.12008 · $1,431.00 proposed

  4. violation5010114
    Logansport Cement Plant · 1200065

    56.20003(a) · $755.00 proposed

  5. violation5010113
    Logansport Cement Plant · 1200065

    56.12018 · $193.00 proposed

  6. violation9785845
    Mitchell Plant · 1200063

    56.20003(b) · $267.00 proposed

  7. violation9785844
    Mitchell Plant · 1200063

    56.20003(b) · $592.00 proposed

  8. violation9780732
    Mitchell Plant · 1200063

    56.14107(a) · S&S · $8,315.00 proposed

  9. violation5113751
    Mason City Plant · 1300095

    50.20(a) · $151.00 proposed

  10. violation9780731
    Mitchell Plant · 1200063

    56.14107(a) · $1,126.00 proposed

  11. inspectionF03F349
    Mason City Plant · 1300095

    Non-Fatal Accident Investigation · 6.5 on-site hours

  12. inspectionF03F348
    Mason City Plant · 1300095

    103 (g) Written Notification Hazard Complaint Inspectio · 9.0 on-site hours

  13. violation9785843
    Mitchell Plant · 1200063

    56.20003(b) · $267.00 proposed

  14. violation9780730
    Mitchell Plant · 1200063

    56.9101 · S&S · $209.00 proposed

  15. violation9780729
    Mitchell Plant · 1200063

    56.9315 · $592.00 proposed

  16. violation9780728
    Mitchell Plant · 1200063

    56.20003(b) · $267.00 proposed

  17. violation9780727
    Mitchell Plant · 1200063

    56.9101 · S&S · $1,320.00 proposed

  18. inspectionF021D24
    Mitchell Plant · 1200063

    Regular Safety and Health Inspection · 85.3 on-site hours

  19. inspectionF03C235
    Mason City Plant · 1300095

    Compliance Follow-up Inspection · 1.8 on-site hours

  20. accident220260980002
    Mitchell Plant · 1200063

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    UNDER THE SILOS IS A TIGHT SPACE. WAS USING A WALK BEHIND SKID STEER. MOBILITY WAS LIMITED, OPERATOR WAS GOING IN REVERSE WITH A LIMITED FIELD OF VIEW

  21. accident220260990029
    Mason City Plant · 1300095

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    EE fell down an undetermined amount of stairs below the kiln feed area. The worker received multiple lacerations to head and nose requiring extensive care. Also informed late evening at the ER that there was a crack on one or both sides of vertebrae.

  22. inspectionF0393DE
    Nazareth Plant I · 3600190

    Compliance Follow-up Inspection · 0.8 on-site hours

  23. inspectionF0369C3
    Nazareth Plant I · 3600190

    103 (g) Written Notification Hazard Complaint Inspectio · 9.0 on-site hours

  24. inspectionF02AF90
    Mason City Plant · 1300095

    Compliance Follow-up Inspection · 10.5 on-site hours

  25. inspectionF03EFD6
    UNION BRIDGE MD · 1800017

    Compliance Follow-up Inspection · 1.8 on-site hours

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.