Ridgeway Quarry Metal/Non-Metal
Martin Marietta Corp
· Surface
Controlled by
Martin Marietta Materials Inc
Harrison County,
MO
·
Abandoned
MSHA Mine ID: 2300472
MSHA record for Ridgeway Quarry (mine ID 2300472). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Ownership history
- Raid Quarries Division 1950 to 1978
- Medusa Aggregates Company 1979 to 1979
- Hardrock Quarries Inc 1979 to 1982
- Hardrock Quarries-Milburn Of St Joseph 1982 to 1984
- Martin Marietta Corp 1984 to present
Source: MSHA controller and operator history, updated weekly.
Ridgeway Quarry sits in Harrison County, Missouri, where the Census mining category is 0.2% of county employment.
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.Harrison County, Missouri · Population 8,198
0.2%
Mining share of county employment
$53,364
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.