Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Knife River
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR ID0109965
MINE PORTFOLIO
2 of 2 mines and facilities
2025-01-01 – 2026-10-13. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Concrete, Inc DBA Knife River0405140 · Active6/8 quarters reported | San Joaquin, CASurface · MSHA: Construction Sand and Gravel | 0 | 23,397 | 8 | 1 | 35.8 |
| Knife River Newman Aggregate0401774 · Active6/8 quarters reported | Stanislaus, CASurface · MSHA: Construction Sand and Gravel | 0 | 15,615 | 2 | 1 | 32.3 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
2 of 2 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Concrete, Inc DBA Knife River38.16056, -121.02194Open map ↗
- Knife River Newman Aggregate37.33417, -121.09028Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 2 mines listed under this operator were checked; 2 have reports in the available quarters. Totals use current ownership.
Hours worked
39,012reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 6,089 | 0.00 | 12 | 2/2 mines reporting |
| 2025 Q2 | 0 | 5,967 | 0.00 | 14 | 2/2 mines reporting |
| 2025 Q3 | 0 | 7,075 | 0.00 | 12 | 2/2 mines reporting |
| 2025 Q4 | 0 | 6,090 | 0.00 | 12 | 2/2 mines reporting |
| 2026 Q1 | 0 | 5,666 | 0.00 | 14 | 2/2 mines reporting |
| 2026 Q2 | 0 | 8,125 | 0.00 | 16 | 2/2 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
101 significant & substantial (S&S)
Accident records
20 records classified as fatality
Proposed penalties · USD
1,568.0010 of 10 violations with amounts
On-site inspection hours
68.0013 inspections · 13 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 3 | 1 | 511.00 | 1 | 0 | 3 | 12.0 |
| 2025-Q2 | 2 | 0 | 302.00 | 0 | 0 | 2 | 20.5 |
| 2025-Q3 | 0 | 0 | — | 1 | 0 | 1 | 1.3 |
| 2025-Q4 | 1 | 0 | 151.00 | 0 | 0 | 2 | 8.8 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 2 | 4.5 |
| 2026-Q2 | 3 | 0 | 453.00 | 0 | 0 | 1 | 8.5 |
| 2026-Q3 | 1 | 0 | 151.00 | 0 | 0 | 2 | 12.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Concrete, Inc DBA Knife River · 0405140
Impoundment Spot Inspection · 0.0 on-site hours
- Knife River Newman Aggregate · 0401774
Regular Safety and Health Inspection · 12.5 on-site hours
- Knife River Newman Aggregate · 0401774
56.9300(b) · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
Regular Safety and Health Inspection · 8.5 on-site hours
- Concrete, Inc DBA Knife River · 0405140
56.15001 · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
56.15001 · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
56.20003(a) · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
Spot Inspection · 2.3 on-site hours
- Knife River Newman Aggregate · 0401774
Regular Safety and Health Inspection · 2.3 on-site hours
- Concrete, Inc DBA Knife River · 0405140
Compliance Follow-up Inspection · 1.0 on-site hours
- Concrete, Inc DBA Knife River · 0405140
56.14132(b)(2) · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
Regular Safety and Health Inspection · 7.8 on-site hours
- Concrete, Inc DBA Knife River · 0405140
Impoundment Spot Inspection · 1.3 on-site hours
- Knife River Newman Aggregate · 0401774
MACHINERY · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
MINER WAS SPOOLING IN A WINCH CABLE. EE WAS GUIDING THE CABLE WITH LEFT HAND AND CONTROLING THE FEED WITH THE CONTROLLER ON RIGHT HAND. AS THEY WERE ALMOST AT THE END, A U BOLT THAT WAS USED TO CREATE A LOOP AT THE END OF THE CABLE, CAUGHT THE CUFF OF THEIR GLOVE AND PULLED THEIR HAND INTO THE OPENING, THE U BOLT CAUGH THEIR MIDDLE FINGER AND LACERATED IT.
- Knife River Newman Aggregate · 0401774
Regular Safety and Health Inspection · 14.0 on-site hours
- Concrete, Inc DBA Knife River · 0405140
Regular Safety and Health Inspection · 6.5 on-site hours
- Concrete, Inc DBA Knife River · 0405140
56.14107(a) · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
56.14107(a) · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
Spot Inspection · 3.0 on-site hours
- Concrete, Inc DBA Knife River · 0405140
56.15005 · S&S · $209.00 proposed
- Concrete, Inc DBA Knife River · 0405140
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Miner was working on top of a water tank that was approx. 7' tall. Miner was removing an Air Compressor that inserts pressure into the water tank. As miner proceeded to remove it, the compressor suddenly propelled forward with enough force to strike miner on the face and chest area. Miner fell sideways to the ground hurting right leg.
- Knife River Newman Aggregate · 0401774
Regular Safety and Health Inspection · 3.5 on-site hours
- Knife River Newman Aggregate · 0401774
56.14107(a) · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
56.12004 · $151.00 proposed
- Concrete, Inc DBA Knife River · 0405140
Regular Safety and Health Inspection · 5.5 on-site hours
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.