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MSHA mine register by county

Mines in Hardin County, Iowa

Hardin County, Iowa has 33 mines on MSHA's register: 4 active, 2 intermittent, 27 abandoned. 1 miner has died and 160 accidents have been reported at these mines between 1984 and 2026. Inspectors have issued 961 citations.

Every mine MSHA has registered in Hardin County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Hardin County →

Mines on register
33
Active
4
Fatalities on record
1
Citations issued
961
0 underground · 31 surface · 2 facilities 0 coal · 33 metal and non-metal 2 intermittent 27 abandoned 160 reported accidents, 1984–2026
Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Hardin County, Iowa · Population 16,729
0.3%
Mining share of county employment
$64,906
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
Weaver Construction Company 7 0 0
Martin Marietta Aggregates 6 0 0
Martin Marietta Materials, Inc. 6 3 0
Weaver Construction Company 2 0 0
Welden Aggregates Inc 1 0 1
American Cyanamid Company 1 0 0
CTI RADY MIX, INC DBA CONCRETE INC 1 0 0
Gehrke Quarries Inc 1 0 0
Hackney Quarries Inc 1 0 0
ILC Resources 1 1 0
Mines in Hardin County33 on register
  1. ALDEN PLANT
    Surface metal/non-metal · ILC Resources · MSHA ID 1300058
    Active
  2. Alden Quarry and Shop
    Surface metal/non-metal · Martin Marietta Materials, Inc. · MSHA ID 1300228
    Active
  3. Alden Portable Plant #2
    Surface metal/non-metal · Martin Marietta Materials Inc · MSHA ID 1302033
    Active
  4. Alden Portable Sand
    Surface metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 1302037
    Active
  5. Welden Pit
    Surface metal/non-metal · Welden Aggregates Inc · MSHA ID 1300777
    Abandoned
  6. Alden Portable Plant #1
    Surface metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 1302031
    Abandoned
  7. Alden Portable Wash
    Surface metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 1302122
    Intermittent
  8. Gehrke Quarries Inc
    Surface metal/non-metal · Gehrke Quarries Inc · MSHA ID 1301774
    Abandoned
  9. PLANT #836
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 1302030
    Abandoned
  10. CTI Ready Mix, Inc dba Concrete Inc.
    Surface metal/non-metal · CTI RADY MIX, INC DBA CONCRETE INC · MSHA ID 1300659
    Intermittent
  11. PLANT #842
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 1302035
    Abandoned
  12. Alden Shop
    Facility metal/non-metal · Martin Marietta Materials · MSHA ID 1302320
    Abandoned
  13. IMP, INC.
    Surface metal/non-metal · Iowa Mineral Processing Inc · MSHA ID 1302205
    Abandoned
  14. Portable Sand & Gravel Plant #1
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 1302034
    Abandoned
  15. Screen #1 McDowell & Sons Lime Company
    Surface metal/non-metal · McDowell & Sons Lime Company · MSHA ID 1302287
    Abandoned
  16. Alden Plant
    Facility metal/non-metal · American Cyanamid Company · MSHA ID 1301720
    Abandoned
  17. Portable Rock Plant #5
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 1302142
    Abandoned
  18. PLANT #839 PORTABLE SAND 2
    Surface metal/non-metal · Martin Marietta Aggregates Of Iowa Inc · MSHA ID 1302207
    Abandoned
  19. Des Moines Yard
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1302038
    Abandoned
  20. Gifford Quarry
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1301724
    Abandoned
  21. Hackney Quarries Incorporated
    Surface metal/non-metal · Hackney Quarries Inc · MSHA ID 1302179
    Abandoned
  22. Janssen Pit
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1301796
    Abandoned
  23. Nehring Pit
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1301536
    Abandoned
  24. Portable Rock Plant #1
    Surface metal/non-metal · Montandon Construction Company · MSHA ID 1302054
    Abandoned
  25. Portable Sand & Gravel Plant #3
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 1302036
    Abandoned
  26. Portable Sand & Gravel Plant #5
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 1302143
    Abandoned
  27. Portable Wash Plant #1
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1302039
    Abandoned
  28. Portable Wash Plant #2
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1302040
    Abandoned
  29. Riekena Pit
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1301949
    Abandoned
  30. Riekena Quarry
    Surface metal/non-metal · Larry J Riekena · MSHA ID 1301979
    Abandoned
  31. Stinson Excavating Company Sand & Gravel
    Surface metal/non-metal · Stinson Excavating Company · MSHA ID 1300699
    Abandoned
  32. Vanpatter Quarry
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1301984
    Abandoned
  33. Wendall-Peterson Pit
    Surface metal/non-metal · Weaver Construction Company · MSHA ID 1301794
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in IowaAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.