Data / Mines / Oregon / Keizer Pit & Plant
Keizer Pit & Plant, Marion County, Oregon: 3 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Keizer Pit & Plant is an active construction sand and gravel surface mine in Marion County, Oregon, operated by Knife River Corporation Northwest with 4 employees on MSHA's record (mine ID 3500503). Since January 1, 2022 MSHA inspectors issued 3 citations and orders there with $307 in proposed penalties, and 1 accident report was filed there, with no injury or illness cases.
The request: Watch Keizer Pit & Plant (MSHA mine ID 3500503) in Marion County, Oregon: each new citation and each accident report. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA mine ID
- 3500503
- Status
- Active since September 29, 2017
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Marion County, Oregon
- Nearest town
- Keizer
- Operator
- Knife River Corporation Northwest
- Parent company
- Knife River Corporation
- Employees
- 4
- MSHA field office
- Albany Or Field Office
- Citations and orders since January 1, 2022
- 3
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 1
- High negligence or reckless
- 0
- Proposed penalties
- $307
- Amount paid so far
- $307
- Inspections
- 12
- Inspector hours on site
- 55
- Citations per inspection
- 0.25 (all mines 2.30)
- Accident reports
- 1
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- October 15, 2026
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2023 | 1 | 0 | $143 | 0 |
| 2024 | 1 | 0 | $164 | 0 |
| 2026 | 1 | 0 | $0 | 0 |
Standards cited most at Keizer Pit & Plant
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 46.7 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
What the accident reports at Keizer Pit & Plant describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Other | 1 |
Other open mines in Marion County, Oregon
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Portable 2 | Chavarria Construction Inc. | Marion County, OR | Crushed, broken stone | 1 | 25 |
| Portable #1 | Stokes Crushing LLC | Marion County, OR | Crushed, broken stone | 2 | 24 |
| Reed Pit | Knife River Corporation Northwest | Marion County, OR | Construction sand and gravel | 17 | 16 |
| RiverBend Materials Windsor | Central Pre-Mix Concrete Co. | Marion County, OR | Crushed, broken stone | 20 | 12 |
| RiverBend Materials Turner South | Central Pre-Mix Concrete Co. | Marion County, OR | Construction sand and gravel | 7 | 12 |
| Allied Rock Portable Crusher #1 | Central Pre-Mix Concrete Co. | Marion County, OR | Crushed, broken stone | 5 | 11 |
| RiverBend Materials RiverBend West | Central Pre-Mix Concrete Co. | Marion County, OR | Construction sand and gravel | 9 | 9 |
| Plant #1 | Aggregate Resource Crushing, LLC | Marion County, OR | Crushed, broken stone | 4 | 9 |
| WCP Inc | Wilsonville Concrete Products | Marion County, OR | Construction sand and gravel | 5 | 7 |
| K & E Rock Products | K&e Excavating Inc | Marion County, OR | Crushed, broken stone | 5 | 7 |
| RiverBend Materials Hilroy | Central Pre-Mix Concrete Co. | Marion County, OR | Construction sand and gravel | 8 | 3 |
| Allied Rock Portable Crusher #2 | Central Pre-Mix Concrete Co. | Marion County, OR | Crushed, broken stone | 2 | 3 |
| Rogue Portable #10 | Knife River Corporation Northwest | Marion County, OR | Crushed, broken stone | 3 | 0 |
| Umpqua Mobile Crushing | Central Pre-Mix Concrete Co. | Marion County, OR | Crushed, broken stone | 2 | 0 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.