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MSHA mine register by county

Mines in Washington County, Nebraska

Washington County, Nebraska has 4 mines on MSHA's register: 1 active, 3 abandoned. 41 accidents have been reported at these mines between 1988 and 2026. Inspectors have issued 397 citations.

Every mine MSHA has registered in Washington 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 Washington County →

Mines on register
4
Active
1
Fatalities on record
0
Citations issued
397
1 underground · 3 surface · 0 facilities 0 coal · 4 metal and non-metal 3 abandoned 41 reported accidents, 1988–2026
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.
Washington County, Nebraska · Population 20,989
0.4%
Mining share of county employment
$90,188
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
Martin Marietta Materials Inc. 2 1 0
Martin Marietta Aggregates 1 0 0
Rinker Materials Western Inc. 1 0 0
Mines in Washington County4 on register
  1. Fort Calhoun Underground Mine
    Underground metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 2501300
    Active
  2. Fort Calhoun Stone East Quarry
    Surface metal/non-metal · Martin Marietta Materials Inc. · MSHA ID 2500006
    Abandoned
  3. Marion Portable #873
    Surface metal/non-metal · Martin Marietta Aggregates · MSHA ID 2500056
    Abandoned
  4. Rinker Materials Ft Calhoun West Quarry
    Surface metal/non-metal · Rinker Materials Western Inc. · MSHA ID 2500400
    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 NebraskaAll 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.