Highway 175 Quarry
MSHA mine ID 0405336 · Lake County, CA
- Operator
- Granite Construction Co
- Controller
- Granite Construction Inc
- Mine status
- Active since Aug 13, 2023
- Mine type
- Surface
- Primary commodity
- Construction Sand and Gravel
- Citations issued
- Mar 3, 2025 to Oct 13, 2026
Past 24 months at a glance
- Inspections
- 8
- Citations and orders
- 4
- Marked S&S by MSHA
- 1
- Assessed penalties
- $865
2 of 4 citations have an MSHA assessment so far, first proposed at $865. 0 are marked contested.
Citations by standard
The 30 CFR section MSHA cited, most cited first.
| Standard | Citations | Assessed |
|---|---|---|
| 56.11001 | 1 | $714 |
| 56.14112(a)(1) | 1 | $151 |
| 56.16012 | 1 | $0 |
| Not listed | 1 | $0 |
Latest citations
| Issued | Assessed |
|---|---|
| Oct 13, 2026 No. 5102659 56.16012 | Not yet assessed |
| Dec 17, 2025 No. 5102601 56.14112(a)(1) | $151 Closed |
| Mar 3, 2025 No. 9680414 56.11001 | $714 Closed |
| Mar 3, 2025 No. 9680413 Standard not listed | Not yet assessed |
Latest inspections
Regular Safety and Health Inspection
Event F036E05
Oct 13, 2026
Regular Safety and Health Inspection
Event F012E39
Mar 30, 2026 to Apr 2, 2026
Regular Safety and Health Inspection
Event F023BAC
Dec 16, 2025 to Dec 17, 2025
Verbal Hazard Complaint Inspections
Event F0299E0
Sep 10, 2025
Spot Inspection
Event F0299DF
Sep 9, 2025 to Sep 11, 2025
Impoundment Spot Inspection
Event F023B98
Aug 26, 2025 to Aug 27, 2025
Regular Safety and Health Inspection
Event F0299CC
Jun 11, 2025 to Jun 12, 2025
Regular Safety and Health Inspection
Event F011116
Mar 3, 2025 to Mar 4, 2025
Get an alert when MSHA cites Highway 175 Quarry again
MineCitation checks MSHA data every day and emails new citations, S&S violations, penalties and ownership changes in the states and mine types you choose.
About this record
These figures come from public Mine Safety and Health Administration (MSHA) open government data on mines, inspections, violations and assessed violations. MineCitation copies them as published and does not add findings of its own.
A citation records a condition an MSHA inspector found. Operators can contest citations and penalties, and amounts can change after review. MineCitation is not legal advice.
See something that does not match MSHA's records? Email support@minecitation.com with the mine ID and we will check it against the source data.