Portable #100
Active
Surface
SandAndGravel
Operator: Western Construction Inc.
Controller: Tom E Lien Jr
Location: Rapid City, Pennington County, SD
Employees: 4
63
Violations
12
S&S Violations
0
Accidents
$12K
Penalties
Recent Violations
View all 63 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 08/18/2025 | 56.4101 | Non-S&S | ModNegligence | $151 |
| 08/18/2025 | 56.4200(b)(2) | Non-S&S | ModNegligence | $151 |
| 02/25/2025 | 56.14107(a) | Non-S&S | ModNegligence | $151 |
| 02/24/2025 | 56.12032 | Non-S&S | ModNegligence | $151 |
| 02/24/2025 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 02/24/2025 | 56.12018 | Non-S&S | ModNegligence | $151 |
| 02/24/2025 | 56.12030 | Non-S&S | ModNegligence | $151 |
| 08/19/2024 | 56.14107(a) | Non-S&S | LowNegligence | $147 |
| 08/19/2024 | 56.14101(a)(2) | Non-S&S | ModNegligence | $147 |
| 08/19/2024 | 56.14132(a) | Non-S&S | LowNegligence | $147 |
| 08/15/2023 | 56.14112(b) | Non-S&S | ModNegligence | $143 |
| 08/15/2023 | 50.30(a) | Non-S&S | ModNegligence | $143 |
| 08/15/2023 | 56.14100(c) | Non-S&S | ModNegligence | $143 |
| 02/15/2023 | 56.14206(b) | S&S | ModNegligence | $182 |
| 02/15/2023 | 47.41(a)(1) | Non-S&S | ModNegligence | $143 |
| 04/28/2022 | 56.12004 | Non-S&S | ModNegligence | $133 |
| 04/28/2022 | 56.14205 | S&S | ModNegligence | $169 |
| 11/24/2021 | 50.30(a) | Non-S&S | HighNegligence | $125 |
| 11/23/2021 | 56.14206(b) | Non-S&S | ModNegligence | $125 |
| 11/23/2021 | 56.14201(b) | Non-S&S | ModNegligence | $125 |
Inspections
View all 42 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 08/18/2025 | 08/19/2025 | 13.75 | 1 |
| 02/24/2025 | 02/27/2025 | 32.50 | 1 |
| 08/27/2024 | 08/27/2024 | 2.50 | 1 |
| 08/19/2024 | 08/19/2024 | 8.75 | 1 |
| 02/20/2024 | 02/21/2024 | 12.00 | 1 |
| 09/25/2023 | 09/26/2023 | 26.75 | 1 |
| 08/14/2023 | 08/15/2023 | 16.00 | 2 |
| 02/15/2023 | 02/21/2023 | 19.25 | 1 |
| 04/28/2022 | 04/28/2022 | 15.25 | 1 |
| 11/23/2021 | 11/24/2021 | 13.25 | 1 |
Mine Details
MSHA Mine ID3901539
Mine TypeSurface
StatusActive
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees4
Days/Week5.0
Hours/Shift12.0
Coordinates44.0527780, -103.0766670
Nearest TownRapid City
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Frequently Asked Questions
How many MSHA violations does Portable #100 have?
Portable #100 has 63 MSHA violations on record, of which 12 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $12K.
What type of mine is Portable #100?
Portable #100 is a Surface mine producing SandAndGravel, located in Rapid City, Pennington County, SD. It currently has 4 employees.
Has anyone been injured or killed at Portable #100?
According to MSHA records, Portable #100 has 0 reported accident/injury records and 0 fatalities on file.
Who operates Portable #100?
Portable #100 is operated by Western Construction Inc. and controlled by Tom E Lien Jr. MSHA Mine ID: 3901539.