Key Takeaway
iRock Crusher is a active surface mine producing Stone, located in Beckwourth, Plumas County, CA. It has 90 violations on record (17 S&S) and $30K in proposed penalties. Operated by Sierra Cascade Aggregate & Asphalt Products, Inc..
iRock Crusher
Operator: Sierra Cascade Aggregate & Asphalt Products, Inc.
Controller: Caleb Holland
Location: Beckwourth, Plumas County, CA
Employees: 4
Recent Violations
View all 90 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 01/29/2026 | 56.14107(a) | Non-S&S | LowNegligence | $0 |
| 01/29/2026 | 56.14112(a)(2) | Non-S&S | LowNegligence | $0 |
| 01/29/2026 | 56.4230(c) | Non-S&S | LowNegligence | $0 |
| 05/21/2025 | 56.11004 | Non-S&S | ModNegligence | $177 |
| 05/21/2025 | 56.16005 | Non-S&S | ModNegligence | $177 |
| 05/21/2025 | 56.20003(a) | Non-S&S | ModNegligence | $177 |
| 05/21/2025 | 56.14100(b) | S&S | ModNegligence | $883 |
| 05/21/2025 | 56.11001 | S&S | ModNegligence | $883 |
| 05/21/2025 | 56.12016 | Non-S&S | ModNegligence | $592 |
| 01/30/2025 | 56.14112(b) | Non-S&S | LowNegligence | $151 |
| 01/30/2025 | 56.14107(a) | Non-S&S | ModNegligence | $267 |
| 01/30/2025 | 41.12 | Non-S&S | ModNegligence | $151 |
| 09/10/2024 | 56.18002(a) | Non-S&S | ModNegligence | $147 |
| 09/09/2024 | 56.4101 | Non-S&S | ModNegligence | $161 |
| 09/09/2024 | 56.4101 | Non-S&S | ModNegligence | $161 |
| 09/09/2024 | 56.12002 | Non-S&S | ModNegligence | $161 |
| 09/09/2024 | 56.14112(b) | Non-S&S | ModNegligence | $161 |
| 09/09/2024 | 56.15007 | S&S | HighNegligence | $3,944 |
| 09/06/2024 | 56.4601 | Non-S&S | ModNegligence | $161 |
| 09/06/2024 | 56.12002 | Non-S&S | ModNegligence | $161 |
Inspections
View all 19 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 01/29/2026 | 01/29/2026 | 11.25 | 1 |
| 06/16/2025 | 06/18/2025 | 16.50 | 1 |
| 05/20/2025 | 05/29/2025 | 49.75 | 1 |
| 01/29/2025 | 01/30/2025 | 26.00 | 1 |
| 09/05/2024 | 09/10/2024 | 33.00 | 1 |
| 08/08/2024 | 08/13/2024 | 0.25 | 1 |
| 04/29/2024 | 04/30/2024 | 16.75 | 1 |
| 03/20/2024 | 03/26/2024 | 42.50 | 1 |
| 09/14/2023 | 09/19/2023 | 13.00 | 1 |
| 10/16/2022 | 10/19/2022 | 12.25 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does iRock Crusher have?
iRock Crusher has 90 MSHA violations on record, of which 17 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $30K.
What type of mine is iRock Crusher?
iRock Crusher is a Surface mine producing Stone, located in Beckwourth, Plumas County, CA. It currently has 4 employees.
Has anyone been injured or killed at iRock Crusher?
According to MSHA records, iRock Crusher has 0 reported accident/injury records and 0 fatalities on file.
Who operates iRock Crusher?
iRock Crusher is operated by Sierra Cascade Aggregate & Asphalt Products, Inc. and controlled by Caleb Holland. MSHA Mine ID: 0405914.