Walstrum Quarry
Active
Surface
Stone
Operator: Martin Marietta Materials
Controller: Martin Marietta Materials Inc
Location: Idaho Springs, Clear Creek County, CO
Employees: 35
233
Violations
53
S&S Violations
26
Accidents
$118K
Penalties
Recent Violations
View all 233 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/15/2025 | 56.16006 | Non-S&S | LowNegligence | $151 |
| 10/14/2025 | 56.4201(a)(1) | Non-S&S | LowNegligence | $151 |
| 07/21/2025 | 56.4101 | Non-S&S | LowNegligence | $151 |
| 07/21/2025 | 56.4601 | Non-S&S | LowNegligence | $151 |
| 07/16/2025 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 07/15/2025 | 47.41(a) | Non-S&S | ModNegligence | $151 |
| 01/14/2025 | 56.11012 | S&S | ModNegligence | $549 |
| 01/14/2025 | 56.12032 | Non-S&S | ModNegligence | $245 |
| 01/08/2025 | 56.20003(a) | S&S | NoNegligence | $432 |
| 01/08/2025 | 56.14101(a)(3) | Non-S&S | ModNegligence | $151 |
| 01/08/2025 | 47.41(a)(1) | Non-S&S | ModNegligence | $245 |
| 07/08/2024 | Non-S&S | $0 | ||
| 07/08/2024 | 56.11001 | S&S | ModNegligence | $1,220 |
| 07/08/2024 | 46.11(b)(4) | S&S | LowNegligence | $1,220 |
| 07/08/2024 | 47.41(a) | Non-S&S | ModNegligence | $147 |
| 07/03/2024 | 56.14201(b) | Non-S&S | ModNegligence | $147 |
| 01/26/2024 | 56.14107(a) | Non-S&S | ModNegligence | $147 |
| 01/25/2024 | 56.4200(b)(2) | Non-S&S | ModNegligence | $147 |
| 01/24/2024 | 56.11003 | Non-S&S | HighNegligence | $221 |
| 01/24/2024 | 56.14101(a)(3) | Non-S&S | ModNegligence | $147 |
Accidents & Injuries
View all 26 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 05/05/2025 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 09/12/2024 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 102d restricted |
| 12/14/2023 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
| 08/10/2023 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 32d restricted |
| 06/14/2023 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 27d lost |
| 05/04/2023 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 64d lost |
| 12/08/2022 | POWERED HAULAGE | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/06/2022 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 44d lost, 14d restricted |
| 09/07/2022 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 2d lost, 155d restricted |
| 08/23/2022 | MACHINERY | DAYS RESTRICTED ACTIVITY ONLY | 43d restricted |
Inspections
View all 78 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/09/2025 | 10/23/2025 | 38.75 | 1 |
| 07/15/2025 | 07/21/2025 | 21.00 | 1 |
| 01/07/2025 | 01/15/2025 | 33.50 | 1 |
| 07/16/2024 | 07/17/2024 | 6.00 | 1 |
| 07/02/2024 | 07/08/2024 | 43.75 | 1 |
| 01/24/2024 | 01/26/2024 | 21.25 | 1 |
| 05/31/2023 | 06/02/2023 | 28.75 | 1 |
| 05/17/2023 | 05/17/2023 | 1.75 | 1 |
| 12/05/2022 | 12/07/2022 | 34.50 | 1 |
| 10/21/2022 | 10/21/2022 | 10.50 | 1 |
Mine Details
MSHA Mine ID0503935
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Granite
Employees35
Days/Week6.0
Hours/Shift12.0
Coordinates39.7463890, -105.4338890
Nearest TownIdaho Springs
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Frequently Asked Questions
How many MSHA violations does Walstrum Quarry have?
Walstrum Quarry has 233 MSHA violations on record, of which 53 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $118K.
What type of mine is Walstrum Quarry?
Walstrum Quarry is a Surface mine producing Stone, located in Idaho Springs, Clear Creek County, CO. It currently has 35 employees.
Has anyone been injured or killed at Walstrum Quarry?
According to MSHA records, Walstrum Quarry has 26 reported accident/injury records and 1 fatalities on file.
Who operates Walstrum Quarry?
Walstrum Quarry is operated by Martin Marietta Materials and controlled by Martin Marietta Materials Inc. MSHA Mine ID: 0503935.