Big Rock Creek Quarry Metal/Non-Metal
Granite Construction Company
· Surface
Controlled by
Granite Construction Inc
Littlerock,
Los Angeles County,
CA
·
Active
MSHA Mine ID: 0405946
Big Rock Creek Quarry has $2K in proposed MSHA penalties and $302 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2020
17
citations
3
significant & substantial
$2,426
proposed penalties
$2,124
paid to date
88% of proposed penalties paid to date, a $302 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2020
16
inspections on record
217
inspection hours
n/a
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Rate withheld: 217 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Big Rock Creek Quarry has $2K in proposed MSHA penalties and $302 outstanding across 0 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$302
outstanding
15 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-12.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 7,994 | 0 | 0 | 0.0 |
| 2025 Q3 | 9,628 | 0 | 0 | 0.0 |
| 2025 Q2 | 9,547 | 0 | 0 | 0.0 |
| 2025 Q1 | 9,016 | 0 | 0 | 0.0 |
| 2024 Q4 | 8,435 | 3 | 0 | 355.7 |
| 2024 Q3 | 8,274 | 2 | 1 | 241.7 |
| 2024 Q2 | 9,430 | 0 | 0 | 0.0 |
| 2024 Q1 | 8,891 | 0 | 0 | 0.0 |
Show 15 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 11,149 | 4 | 1 | 358.8 |
| 2023 Q3 | 7,709 | 0 | 0 | 0.0 |
| 2023 Q2 | 9,071 | 0 | 0 | 0.0 |
| 2023 Q1 | 11,021 | 0 | 0 | 0.0 |
| 2022 Q4 | 8,025 | 1 | 0 | 124.6 |
| 2022 Q3 | 9,132 | 0 | 0 | 0.0 |
| 2022 Q2 | 8,317 | 0 | 0 | 0.0 |
| 2022 Q1 | 9,006 | 2 | 0 | 222.1 |
| 2021 Q4 | 7,838 | 0 | 0 | 0.0 |
| 2021 Q3 | 9,950 | 0 | 0 | 0.0 |
| 2021 Q2 | 9,351 | 0 | 0 | 0.0 |
| 2021 Q1 | 9,318 | 0 | 0 | 0.0 |
| 2020 Q4 | 7,929 | 2 | 0 | 252.2 |
| 2020 Q3 | 6,106 | 1 | 1 | 163.8 |
| 2020 Q2 | 4,181 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.
For insurers, brokers, and safety consultants
The full compliance file on Big Rock Creek Quarry
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.