Key Takeaway
BUILDEX CLAY PIT is a active surface mine producing Nonmetal, located in Dearborn, Platte County, MO. It has 541 violations on record (177 S&S) and $365K in proposed penalties. Operated by N R Hamm Quarry LLC.
BUILDEX CLAY PIT
Operator: N R Hamm Quarry LLC
Controller: Summit Materials LLC
Location: Dearborn, Platte County, MO
Employees: 26
Recent Violations
View all 541 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/18/2026 | 56.11003 | Non-S&S | ModNegligence | $0 |
| 02/18/2026 | 56.14107(a) | Non-S&S | ModNegligence | $0 |
| 02/18/2026 | 56.11012 | Non-S&S | ModNegligence | $0 |
| 09/24/2025 | 50.20-1 | Non-S&S | HighNegligence | $151 |
| 06/10/2025 | 56.14206(b) | Non-S&S | ModNegligence | $151 |
| 06/09/2025 | 56.12008 | Non-S&S | LowNegligence | $151 |
| 06/09/2025 | 56.4201(a)(1) | Non-S&S | ModNegligence | $151 |
| 06/09/2025 | 56.20003(a) | Non-S&S | ModNegligence | $151 |
| 06/09/2025 | 56.11004 | Non-S&S | ModNegligence | $151 |
| 02/12/2025 | 56.12019 | Non-S&S | ModNegligence | $151 |
| 02/11/2025 | 56.12032 | Non-S&S | ModNegligence | $209 |
| 02/11/2025 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 11/26/2024 | 56.14205 | S&S | ModNegligence | $3,448 |
| 06/17/2024 | 56.14112(b) | Non-S&S | ModNegligence | $260 |
| 06/17/2024 | 56.14132(a) | Non-S&S | LowNegligence | $147 |
| 02/21/2024 | 56.14110 | Non-S&S | LowNegligence | $147 |
| 02/21/2024 | 56.11027 | Non-S&S | LowNegligence | $147 |
| 06/22/2023 | 56.20003(a) | S&S | ModNegligence | $439 |
| 06/22/2023 | 56.14107(a) | Non-S&S | ModNegligence | $143 |
| 06/21/2023 | 56.14107(a) | Non-S&S | LowNegligence | $143 |
Accidents & Injuries
View all 85 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 04/11/2025 | POWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/18/2024 | POWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 07/21/2024 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 03/29/2022 | FIRE | ACCIDENT ONLY | None |
| 12/03/2021 | HANDLING OF MATERIALS | PERM TOT OR PERM PRTL DISABLTY | None |
| 10/30/2020 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 82d restricted |
| 04/02/2019 | OTHER | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 03/15/2018 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 42d restricted |
| 07/26/2017 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 2d restricted |
| 06/05/2017 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
Inspections
View all 116 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/17/2026 | 02/19/2026 | 35.00 | 1 |
| 09/22/2025 | 09/24/2025 | 8.00 | 1 |
| 06/09/2025 | 06/12/2025 | 39.00 | 1 |
| 02/11/2025 | 02/13/2025 | 23.75 | 1 |
| 12/02/2024 | 12/05/2024 | 6.50 | 1 |
| 11/25/2024 | 11/26/2024 | 13.75 | 1 |
| 06/16/2024 | 06/17/2024 | 1.50 | 1 |
| 06/16/2024 | 06/17/2024 | 24.50 | 1 |
| 02/26/2024 | 02/26/2024 | 6.50 | 1 |
| 02/20/2024 | 02/22/2024 | 25.50 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does BUILDEX CLAY PIT have?
BUILDEX CLAY PIT has 541 MSHA violations on record, of which 177 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $365K.
What type of mine is BUILDEX CLAY PIT?
BUILDEX CLAY PIT is a Surface mine producing Nonmetal, located in Dearborn, Platte County, MO. It currently has 26 employees.
Has anyone been injured or killed at BUILDEX CLAY PIT?
According to MSHA records, BUILDEX CLAY PIT has 85 reported accident/injury records and 0 fatalities on file.
Who operates BUILDEX CLAY PIT?
BUILDEX CLAY PIT is operated by N R Hamm Quarry LLC and controlled by Summit Materials LLC. MSHA Mine ID: 2300319.