PLANT #3
Active
Surface
Stone
Operator: Schildberg Construction Company Inc
Controller: Mark Schildberg
Location: Greenfield, Pottawattamie County, IA
Employees: 14
168
Violations
30
S&S Violations
31
Accidents
$34K
Penalties
Recent Violations
View all 168 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 01/13/2026 | 56.14131(a) | Non-S&S | LowNegligence | $151 |
| 01/13/2026 | 56.14131(a) | Non-S&S | LowNegligence | $151 |
| 01/13/2026 | 56.14130(g) | Non-S&S | LowNegligence | $151 |
| 06/16/2025 | 56.14100(c) | Non-S&S | ModNegligence | $151 |
| 06/16/2025 | 56.14100(c) | Non-S&S | ModNegligence | $151 |
| 06/16/2025 | 56.14132(a) | Non-S&S | ModNegligence | $151 |
| 01/13/2025 | 56.14206(b) | Non-S&S | ModNegligence | $151 |
| 02/27/2024 | 56.12005 | Non-S&S | ModNegligence | $147 |
| 02/26/2024 | 56.4201(b) | Non-S&S | ModNegligence | $147 |
| 03/06/2023 | 47.41(a) | Non-S&S | ModNegligence | $143 |
| 03/06/2023 | 56.4101 | Non-S&S | ModNegligence | $143 |
| 03/06/2023 | 56.4200(b)(2) | Non-S&S | ModNegligence | $143 |
| 03/06/2023 | 56.14207 | Non-S&S | ModNegligence | $143 |
| 03/06/2023 | 56.14132(b)(1) | Non-S&S | ModNegligence | $143 |
| 03/06/2023 | 56.4201(a)(2) | Non-S&S | ModNegligence | $143 |
| 03/06/2023 | 46.5(a) | S&S | HighNegligence | $2,065 |
| 10/04/2022 | 56.14107(a) | Non-S&S | LowNegligence | $133 |
| 10/04/2022 | 56.14101(a)(2) | Non-S&S | ModNegligence | $133 |
| 10/04/2022 | 56.14100(a) | Non-S&S | ModNegligence | $133 |
| 10/03/2022 | 56.14209(b) | Non-S&S | ModNegligence | $133 |
Accidents & Injuries
View all 31 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 08/18/2025 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 04/17/2023 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 69d lost, 40d restricted |
| 07/27/2022 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 43d lost, 23d restricted |
| 02/24/2021 | POWERED HAULAGE | DYS AWY FRM WRK & RESTRCTD ACT | 27d lost, 3d restricted |
| 04/16/2018 | POWERED HAULAGE | DYS AWY FRM WRK & RESTRCTD ACT | 24d lost, 7d restricted |
| 12/13/2015 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 02/18/2014 | SLIP OR FALL OF PERSON | DYS AWY FRM WRK & RESTRCTD ACT | 68d lost, 26d restricted |
| 07/15/2011 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 39d lost |
| 04/08/2010 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 3d lost |
| 10/08/2009 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 1d lost, 10d restricted |
Inspections
View all 72 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 01/12/2026 | 01/14/2026 | 30.25 | 1 |
| 06/16/2025 | 06/17/2025 | 16.50 | 1 |
| 01/13/2025 | 01/15/2025 | 23.00 | 1 |
| 09/16/2024 | 09/17/2024 | 20.00 | 1 |
| 08/15/2024 | 08/16/2024 | 16.75 | 1 |
| 02/26/2024 | 02/27/2024 | 28.00 | 2 |
| 03/06/2023 | 03/08/2023 | 24.25 | 1 |
| 10/03/2022 | 10/05/2022 | 22.00 | 1 |
| 05/25/2022 | 05/26/2022 | 18.00 | 1 |
| 03/08/2022 | 03/09/2022 | 20.00 | 1 |
Mine Details
MSHA Mine ID1302092
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees14
Days/Week5.0
Hours/Shift10.0
Coordinates41.3050000, -94.4533330
Nearest TownGreenfield
Related Mines
PLANT #1
Greenfield, Adair County, IA
136 violations
Active
Plant #8
Greenfield, Adair County, IA
112 violations
Active
Plant #9
Greenfield, Adair County, IA
110 violations
Active
PLANT #4
Greenfield, Adair County, IA
70 violations
Abandoned
Oakland Pit
Oakland, Pottawattamie County, IA
67 violations
Active
PLANT #2
unknown, Adair County, IA
64 violations
Active
Stripping #3
Greenfield, Adair County, IA
49 violations
Intermittent
Schildberg Shops
Greenfield, Adair County, IA
40 violations
Abandoned
Frequently Asked Questions
How many MSHA violations does PLANT #3 have?
PLANT #3 has 168 MSHA violations on record, of which 30 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $34K.
What type of mine is PLANT #3?
PLANT #3 is a Surface mine producing Stone, located in Greenfield, Pottawattamie County, IA. It currently has 14 employees.
Has anyone been injured or killed at PLANT #3?
According to MSHA records, PLANT #3 has 31 reported accident/injury records and 0 fatalities on file.
Who operates PLANT #3?
PLANT #3 is operated by Schildberg Construction Company Inc and controlled by Mark Schildberg. MSHA Mine ID: 1302092.