Arcosa Boulder Plant #1604
Active
Surface
Nonmetal
Operator: ARCOSA LWB, LLC
Controller: Arcosa, Inc
Location: Boulder, Jefferson County, CO
Employees: 10
400
Violations
84
S&S Violations
38
Accidents
$313K
Penalties
Recent Violations
View all 400 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 10/30/2025 | 46.9(c)(4) | Non-S&S | LowNegligence | $151 |
| 10/29/2025 | 56.14100(b) | Non-S&S | HighNegligence | $2,133 |
| 10/28/2025 | 56.13011 | Non-S&S | LowNegligence | $288 |
| 10/28/2025 | 56.4130(b) | Non-S&S | ModNegligence | $642 |
| 10/28/2025 | 56.13011 | Non-S&S | LowNegligence | $288 |
| 10/28/2025 | 56.14100(b) | Non-S&S | ModNegligence | $1,431 |
| 10/27/2025 | 56.20003(a) | Non-S&S | ModNegligence | $1,968 |
| 10/27/2025 | 56.12025 | Non-S&S | LowNegligence | $642 |
| 10/27/2025 | 56.14107(a) | Non-S&S | ModNegligence | $642 |
| 10/27/2025 | 56.20003(a) | S&S | ModNegligence | $9,757 |
| 10/27/2025 | 56.11012 | Non-S&S | ModNegligence | $1,431 |
| 10/27/2025 | 56.14110 | Non-S&S | ModNegligence | $432 |
| 10/27/2025 | 56.14112(a)(1) | Non-S&S | ModNegligence | $642 |
| 10/27/2025 | 56.12030 | Non-S&S | ModNegligence | $1,431 |
| 10/27/2025 | 56.12030 | Non-S&S | ModNegligence | $1,431 |
| 10/27/2025 | 56.12030 | Non-S&S | ModNegligence | $1,431 |
| 10/27/2025 | 56.14107(a) | Non-S&S | ModNegligence | $642 |
| 06/26/2025 | 56.20003(a) | S&S | ModNegligence | $151 |
| 06/26/2025 | 46.3(b)(4) | Non-S&S | ModNegligence | $151 |
| 06/24/2025 | 56.13021 | Non-S&S | ModNegligence | $432 |
Accidents & Injuries
View all 38 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 02/16/2025 | OTHER | DYS AWY FRM WRK & RESTRCTD ACT | 5d lost, 217d restricted |
| 01/17/2025 | HANDLING OF MATERIALS | PERM TOT OR PERM PRTL DISABLTY | 29d lost, 63d restricted |
| 12/24/2024 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 02/07/2024 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 37d lost, 10d restricted |
| 08/29/2023 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 28d restricted |
| 08/23/2023 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 23d restricted |
| 08/21/2023 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 100d restricted |
| 06/15/2023 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 15d lost |
| 10/14/2022 | POWERED HAULAGE | PERM TOT OR PERM PRTL DISABLTY | 5d lost, 74d restricted |
| 08/27/2022 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 144d lost |
Inspections
View all 82 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 10/27/2025 | 11/06/2025 | 87.75 | 2 |
| 07/10/2025 | 07/10/2025 | 2.50 | 1 |
| 06/16/2025 | 06/27/2025 | 54.50 | 1 |
| 02/20/2025 | 02/20/2025 | 12.75 | 1 |
| 11/08/2024 | 11/08/2024 | 5.25 | 1 |
| 10/29/2024 | 11/05/2024 | 80.75 | 3 |
| 06/17/2024 | 06/17/2024 | 2.75 | 1 |
| 06/06/2024 | 06/07/2024 | 7.00 | 1 |
| 04/23/2024 | 04/23/2024 | 4.00 | 1 |
| 04/23/2024 | 05/01/2024 | 45.50 | 1 |
Mine Details
MSHA Mine ID0504415
Mine TypeSurface
StatusActive
CommodityNonmetal
SIC DescriptionCommon Shale
Employees10
Days/Week7.0
Hours/Shift12.0
Coordinates39.9088890, -105.2397220
Nearest TownBoulder
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Frequently Asked Questions
How many MSHA violations does Arcosa Boulder Plant #1604 have?
Arcosa Boulder Plant #1604 has 400 MSHA violations on record, of which 84 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $313K.
What type of mine is Arcosa Boulder Plant #1604?
Arcosa Boulder Plant #1604 is a Surface mine producing Nonmetal, located in Boulder, Jefferson County, CO. It currently has 10 employees.
Has anyone been injured or killed at Arcosa Boulder Plant #1604?
According to MSHA records, Arcosa Boulder Plant #1604 has 38 reported accident/injury records and 0 fatalities on file.
Who operates Arcosa Boulder Plant #1604?
Arcosa Boulder Plant #1604 is operated by ARCOSA LWB, LLC and controlled by Arcosa, Inc. MSHA Mine ID: 0504415.