Key Takeaway
Norris Quarries Plant # 1 is a active surface mine producing Stone, located in Rolla, De Kalb County, MO. It has 92 violations on record (29 S&S) and $19K in proposed penalties. Operated by Con-Agg Companies, LLC.
Norris Quarries Plant # 1
Operator: Con-Agg Companies, LLC
Controller: Summit Materials LLC
Location: Rolla, De Kalb County, MO
Employees: 9
Recent Violations
View all 92 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 09/15/2025 | 56.3200 | S&S | ModNegligence | $818 |
| 09/15/2025 | 56.9300(d) | Non-S&S | LowNegligence | $151 |
| 09/15/2025 | 56.4203 | Non-S&S | LowNegligence | $151 |
| 09/15/2025 | 56.7002 | S&S | HighNegligence | $0 |
| 07/08/2025 | 56.14105 | Non-S&S | ModNegligence | $177 |
| 07/08/2025 | 56.12032 | Non-S&S | LowNegligence | $151 |
| 07/08/2025 | 56.12004 | Non-S&S | ModNegligence | $177 |
| 03/10/2025 | 56.9300(a) | Non-S&S | LowNegligence | $151 |
| 04/10/2024 | Non-S&S | $0 | ||
| 06/27/2023 | 56.14112(a)(1) | Non-S&S | LowNegligence | $143 |
| 07/13/2022 | 56.5001(a)/56.5005 | S&S | ModNegligence | $321 |
| 03/19/2021 | 56.12023 | Non-S&S | LowNegligence | $125 |
| 03/19/2021 | 56.14100(b) | S&S | LowNegligence | $136 |
| 03/19/2021 | 56.14100(b) | S&S | LowNegligence | $136 |
| 06/16/2020 | 56.4201(a)(2) | Non-S&S | ModNegligence | $123 |
| 01/15/2020 | 56.15005 | S&S | ModNegligence | $199 |
| 01/15/2020 | 56.14132(b)(1)(i) | Non-S&S | ModNegligence | $135 |
| 12/11/2019 | 56.15003 | Non-S&S | ModNegligence | $123 |
| 12/11/2019 | 56.4230(a)(1) | Non-S&S | LowNegligence | $123 |
| 12/11/2019 | 56.14100(b) | S&S | ModNegligence | $123 |
Accidents & Injuries
View all 13 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 06/25/2024 | IGNITION OR EXPLOSION OF GAS OR DUST | ACCIDENT ONLY | None |
| 10/03/2023 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 11/17/2007 | POWERED HAULAGE | INJURIES INVOLVNG NONEMPLOYEES | None |
| 11/17/2007 | POWERED HAULAGE | INJURIES INVOLVNG NONEMPLOYEES | None |
| 11/04/2004 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 16d restricted |
| 10/28/2004 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 38d restricted |
| 07/28/2004 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 94d lost, 45d restricted |
| 06/12/2003 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 04/26/2003 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 6d lost, 15d restricted |
| 08/27/2002 | OTHER | DAYS AWAY FROM WORK ONLY | 37d lost |
Inspections
View all 71 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 09/15/2025 | 09/30/2025 | 19.50 | 1 |
| 07/08/2025 | 07/10/2025 | 21.25 | 1 |
| 03/10/2025 | 03/10/2025 | 14.00 | 1 |
| 06/26/2024 | 06/26/2024 | 8.00 | 1 |
| 04/10/2024 | 05/13/2024 | 22.75 | 1 |
| 04/03/2024 | 04/03/2024 | 7.00 | 1 |
| 11/13/2023 | 11/13/2023 | 9.50 | 1 |
| 06/27/2023 | 06/27/2023 | 11.00 | 1 |
| 06/07/2023 | 06/08/2023 | 8.00 | 1 |
| 01/18/2023 | 01/24/2023 | 15.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Norris Quarries Plant # 1 have?
Norris Quarries Plant # 1 has 92 MSHA violations on record, of which 29 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $19K.
What type of mine is Norris Quarries Plant # 1?
Norris Quarries Plant # 1 is a Surface mine producing Stone, located in Rolla, De Kalb County, MO. It currently has 9 employees.
Has anyone been injured or killed at Norris Quarries Plant # 1?
According to MSHA records, Norris Quarries Plant # 1 has 13 reported accident/injury records and 0 fatalities on file.
Who operates Norris Quarries Plant # 1?
Norris Quarries Plant # 1 is operated by Con-Agg Companies, LLC and controlled by Summit Materials LLC. MSHA Mine ID: 2301929.