374
power units
Knife River Corporation - Mountain West is a freight carrier based in Boise, Idaho with 374 power units and 275 drivers as reported, the 1,413th largest trucking fleet in the US and the 12th largest in Idaho. In the 24 months to Sep 30, 2026 it had 7 reportable crashes (1.87 per 100 power units vs 2.98 for all carriers). It belongs to Knife River Corporation (KNF).
Updated Oct 11, 2026 · crashes and inspections to Sep 30, 2026
Power units
374
#12 in ID
Drivers
275
Crashes, 24 mo
7
0 fatal
Per 100 trucks
1.87
All carriers: 2.98
Vehicles out of service
38.5%
All inspections: 22.8%
Inspections, 24 mo
21
10% with no violation
Compared with other carriers
Crash rate over 24 months per 100 power units, and the share of roadside inspections that took the vehicle or driver off the road
| Crashes / 100 trucks | Vehicles OOS | Drivers OOS | |
|---|---|---|---|
| Knife River Corporation - Mountain West | 1.87 | 38.5% | 14.3% |
| Carriers with 10+ trucks in ID | 2.43 | 21.8% | 4.0% |
| Carriers with 10+ trucks, US | 2.98 | 19.3% | 3.6% |
| All roadside inspections | - | 22.8% | 6.4% |
Lower is better. Carriers that drive more miles per truck can have more crashes per truck.
Crashes, 24 months
0 people killed and 5 injured
- Fatal0
- Injury4
- Tow-away3
Roadside inspections, 24 months
Inspections and how many ended out of service
| Kind | Inspections | Out of service | Rate |
|---|---|---|---|
| Driver | 21 | 3 | 14.3% |
| Vehicle | 13 | 5 | 38.5% |
Carrier facts
- Carrier number
- 3111936
- Based in
- Boise, Idaho
- Registered
- Mar 20, 2018
- Operation
- Across state lines
- Carries
- Freight
- Authority for hire
- Active
- Safety rating
- Not rated
- Miles driven
- 6.17 million (2024)
- Type
- For hire, Private property
- Cargo
- Building materials, Chemicals, Construction, General freight, Liquids gases, Machinery, Metal, Motor vehicles
- Last update filed
- Jun 23, 2025
- Listed company
- Knife River Corporation (KNF)
Questions and answers
How many trucks does Knife River Corporation - Mountain West have?
Knife River Corporation - Mountain West reports 374 power units (trucks, tractors and buses) and 275 drivers. That is the 1,413th largest fleet among US trucking carriers. Its trucks drove 6.17 million miles in 2024.
Is Knife River Corporation - Mountain West a safe carrier?
In 24 months Knife River Corporation - Mountain West had 7 reportable crashes, 1.87 per 100 power units (below the 2.98 of all carriers with 10+ trucks). 38.5% of its vehicle inspections took the truck off the road (all inspections: 22.8%). It has no official safety rating. A crash record does not say who caused the crash.
Who owns Knife River Corporation - Mountain West?
Knife River Corporation - Mountain West belongs to Knife River Corporation, listed under the ticker KNF.
Reportable crashes of trucks and buses: a death, an injury or a vehicle towed away. A crash record does not say who caused the crash. Recent months can still grow as late reports arrive. Out-of-service rate: the percent of roadside inspections that took the driver or the vehicle off the road until a serious problem was fixed. Carriers with few inspections have rates that swing a lot. Fleet, drivers and miles as the carrier reported them. Official public data, updated daily.