Mines in Benton County, Oregon
Benton County, Oregon has 19 mines on MSHA's register: 2 active, 3 intermittent, 14 abandoned. 34 accidents have been reported at these mines between 1986 and 2026. Inspectors have issued 436 citations.
Every mine MSHA has registered in Benton 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.
- Mines on register
- 19
- Active
- 2
- Fatalities on record
- 0
- Citations issued
- 436
ⓘ
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.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.
| Operator | Mines | Active | Fatalities |
|---|---|---|---|
| Knife River Corporation-Northwest | 2 | 1 | 0 |
| Mid-Valley Gravel Company | 2 | 0 | 0 |
| Alsea Quarries 1 LLC | 1 | 0 | 0 |
| Corvallis Brick & Tile Works Inc | 1 | 0 | 0 |
| D George Neuman Excavating Inc | 1 | 0 | 0 |
| Ferguson Logging Company | 1 | 0 | 0 |
| Hardrock Quarry Inc | 1 | 0 | 0 |
| J. R. Hendrix Inc. | 1 | 0 | 0 |
| Kent's River Bottom Top Soil | 1 | 0 | 0 |
| Monroe Brick & Tile | 1 | 0 | 0 |
-
FISHER ISLAND PLANTActive 0 fatal 78 citationsSurface metal/non-metal · Knife River Corporation-Northwest · MSHA ID 3500463
-
RiverBend Materials CorvallisActive 0 fatal 65 citationsSurface metal/non-metal · River Bend Mtls · MSHA ID 3502705
-
Mid Valley Gravel Co-Portable CrusherAbandoned 0 fatal 162 citationsSurface metal/non-metal · Mid-Valley Gravel Company · MSHA ID 3503498
-
Alsea QuarriesIntermittent 0 fatal 97 citationsSurface metal/non-metal · Alsea Quarries 1 LLC · MSHA ID 3500454
-
ROGUE PORTABLE #7Intermittent 0 fatal 21 citationsSurface metal/non-metal · Knife River Corporation-Northwest · MSHA ID 3503678
-
Neuman QuarryAbandoned 0 fatal 0 citationsSurface metal/non-metal · Neuman Quarry & Excavating · MSHA ID 3500645
-
Kent's River Bottom Top SoilAbandoned 0 fatal 8 citationsSurface metal/non-metal · Kent's River Bottom Top Soil · MSHA ID 3503855
-
Portable #2Intermittent 0 fatal 4 citationsSurface metal/non-metal · Stokes Crushing LLC. · MSHA ID 3503983
-
WICKS PITAbandoned 0 fatal 1 citationsSurface metal/non-metal · Mid-Valley Gravel Company · MSHA ID 3502576
-
Ag-Lime PlantAbandoned 0 fatal 0 citationsFacility metal/non-metal · Morse Brothers Builders Supply · MSHA ID 3502985
-
Corvallis Clay MineAbandoned 0 fatal 0 citationsSurface metal/non-metal · Corvallis Brick & Tile Works Inc · MSHA ID 3500234
-
L & T QuarryAbandoned 0 fatal 0 citationsSurface metal/non-metal · Ferguson Logging Company · MSHA ID 3500962
-
Monroe Clay MineAbandoned 0 fatal 0 citationsSurface metal/non-metal · Monroe Clay Products Company · MSHA ID 3500240
-
MONROE YARD CLAYAbandoned 0 fatal 0 citationsFacility metal/non-metal · Monroe Brick & Tile · MSHA ID 3503427
-
Old State QuarryAbandoned 0 fatal 0 citationsSurface metal/non-metal · Yaquina Head Quarries Inc · MSHA ID 3502845
-
Philomath QuarryAbandoned 0 fatal 0 citationsSurface metal/non-metal · D George Neuman Excavating Inc · MSHA ID 3502745
-
Tobe Creek PitAbandoned 0 fatal 0 citationsSurface metal/non-metal · Hardrock Quarry Inc · MSHA ID 3502929
-
Tobe Creek QuarryAbandoned 0 fatal 0 citationsSurface metal/non-metal · J. R. Hendrix Inc. · MSHA ID 3503806
-
Tremaine Pit & PlantAbandoned 0 fatal 0 citationsSurface metal/non-metal · Morse Brothers Inc · MSHA ID 3500477
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.
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.