ARCOSA LWFP, LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Machinery
Arcosa Frazier Park Plant# 1603 · 0400555Days away from work only
Accident narrative
Employee was welding and grinding inside the K3 Cooler with another maintenance technician on 9/19/26. On 9/21/26, employee told Foreman that they had irritation in their eye and thought it was flash burn from the work conducted previously. After going to the hospital on 9/21/26 they found a corneal abrasion in their left eye.
Housekeeping.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.20003(a) · $151.00 proposed penalty
Housekeeping.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.20003(a) · $151.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $151.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
Arcosa Frazier Park Plant# 1603 · 040055519.5 on-site hours reported
Compliance Follow-up Inspection
Arcosa Frazier Park Plant# 1603 · 04005551.5 on-site hours reported
Regular Safety and Health Inspection
Arcosa Frazier Park Plant# 1603 · 040055514.0 on-site hours reported
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $642.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $642.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $642.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $642.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $642.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · Significant and substantial (S&S) · $3,184.00 proposed penalty
Moving machine parts.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.14107(a) · $642.00 proposed penalty
Housekeeping.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.20003(a) · Significant and substantial (S&S) · $151.00 proposed penalty
Handrails and toeboards.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 56.11002 · Significant and substantial (S&S) · $288.00 proposed penalty
Other
Arcosa Frazier Park Plant# 1603 · 0400555Days restricted activity only
Accident narrative
Employee was working on replacing skirting on this particular conveyor. Employee was kneeling down when they stood up and turned, resulting in a knee strain. As of 8/15/25 employee has an MCL tear right knee.
Impoundment Spot Inspection
Arcosa Frazier Park Plant# 1603 · 04005551.3 on-site hours reported
New task training.
Arcosa Frazier Park Plant# 1603 · 040055530 CFR 46.7(d) · $775.00 proposed penalty
Regular Safety and Health Inspection
Arcosa Frazier Park Plant# 1603 · 040055511.0 on-site hours reported
Stepping or kneeling on object
Arcosa Frazier Park Plant# 1603 · 0400555Days restricted activity only
Accident narrative
Upper Pier on K4 Kiln welding retention blocks. Stepping down from ladder and stepped on things underneath the ladder causing employee to twist and strain back. As of 6/24/25 Modifications to desk duty by Medical professional.
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.