Knife River Corporation - Mountain West
USDOT 3111936 · MC-83161 · Boise, Idaho · Interstate for-hire carrier · 250–499 power units
Knife River Corporation - Mountain West (dba Knife River) is a company based in Boise, Idaho, registered with the FMCSA as an interstate carrier (private property, authorized for hire). It reports 374 power units and 275 drivers, which ranks it #7 by fleet size among 70 active for-hire carriers with 50+ power units headquartered in Idaho. In the 24 months to Sep 24, 2026 its trucks were inspected 21 times – about 0.1 inspections per power unit. 46.2% of vehicle inspections and 14.3% of driver inspections ended with an out-of-service order, against 18.3% and 2.0% for carriers of the same size nationally. FMCSA records 7 reportable crashes in the last 24 months (5 injuries, 0 fatalities, 6 tow-away), or 1.9 per 100 power units versus 4.2 for its size band. Crash counts in FMCSA data do not indicate fault. Its registered cargo types are general freight, metal: sheets, coils, rolls, motor vehicles, building materials, machinery, large objects, liquids / gases, chemicals, utilities and more.
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Registration and contact
| Legal name | Knife River Corporation - Mountain West |
|---|---|
| DBA name | Knife River |
| USDOT number | 3111936 |
| Operating authority (docket) | MC-83161 |
| Entity type | Private Property, Authorized for Hire |
| Operation | Interstate |
| Business type | — |
| Physical address | 5450 W Gowen Rd, Boise, ID 83709 |
| Phone | (208) 362-6152 |
| First registered | Mar 20, 2018 |
| Last MCS-150 update | Jun 23, 2025 |
| Hazmat carrier | Yes |
Check live authority, insurance and out-of-service status: FMCSA SAFER snapshot for USDOT 3111936.
Fleet and drivers
| Equipment | Owned | Term-leased | Trip-leased |
|---|---|---|---|
| Straight trucks | 242 | 80 | 0 |
| Truck tractors | 29 | 15 | 0 |
| Trailers | 305 | 0 | 0 |
- 0.74 drivers per power unit (national median for 50+ unit fleets: 0.99).
- 6.9 trailers per tractor – a drop-and-hook style trailer pool.
- 6,167,300 miles reported for 2024 – about 16,490 miles per power unit vs a 41,335 median for 250–499-unit fleets.
- 86% of listed equipment is owned rather than leased.
- 0 CDL drivers; 275 drivers operate interstate beyond 100 miles, 0 within 100 miles.
Safety record
Roadside inspections Sep 25, 2024 – Sep 24, 2026; crashes Nov 1, 2024 – Oct 31, 2026. Benchmarks: 250–499-unit for-hire carriers nationally (792) and Idaho carriers with 50+ units (70).
| Measure | Knife River Corporation - Mo | Same size, US | ID average | |
|---|---|---|---|---|
| Small sample: fewer than 20 vehicle or driver inspections, so rates can swing a lot with one inspection. | ||||
| Vehicle out-of-service rate | 46.2% | 18.3% | 15.9% | 152% higher than average |
| Driver out-of-service rate | 14.3% | 2.0% | 1.7% | 609% higher than average |
| Crashes per 100 power units | 1.9 | 4.2 | 3.3 | 55% lower than average |
| Inspections | 21 | 21 with a driver check, 13 with a vehicle check, 31 BASIC violations recorded | ||
| FMCSA safety rating | Not rated – most carriers have never had a compliance review; this is not a negative finding. | |||
Cargo carried
Less common in this directory: utilities (421 of 5,000 carriers); motor vehicles (873 of 5,000 carriers).
Similar carriers in Idaho
Closest fleet size and cargo mix among Idaho carriers in this directory.
| Carrier | City | Power units | Drivers | Inspections (24 mo) | Vehicle OOS | Crashes (24 mo) |
|---|---|---|---|---|---|---|
| Western States Equipment Co USDOT 12403 | Meridian | 488 | 1,005 | 114 | 29.0% | 1 |
| Interstate Concrete and Asphalt Company USDOT 369276 | Rathdrum | 507 | 507 | 83 | 45.5% | 5 |
| Woodgrain Transportation LLC USDOT 3421234 | Fruitland | 366 | 285 | 438 | 17.5% | 17 |
| Boise Cascade Building Materials Distribution LLC USDOT 1709260 | Boise | 402 | 312 | 364 | 17.9% | 18 |
| Doug Andrus Distributing LLC USDOT 234 | Idaho Falls | 255 | 255 | 417 | 20.1% | 15 |
| Diamond Line Delivery Systems Inc USDOT 887550 | Meridian | 206 | 203 | 132 | 20.2% | 9 |
Other carriers near Boise
| Carrier | City | Power units | Drivers | Inspections (24 mo) | Vehicle OOS | Crashes (24 mo) |
|---|---|---|---|---|---|---|
| Albertson's LLC USDOT 45225 | Boise | 402 | 488 | 147 | 16.9% | 26 |
| Safeway Inc USDOT 138208 | Boise | 327 | 529 | 615 | 8.2% | 26 |
| Winco Foods LLC USDOT 211984 | Boise | 312 | 352 | 268 | 3.4% | 17 |
| Norco Inc USDOT 62599 | Boise | 213 | 296 | 203 | 6.8% | 3 |
| J R Simplot Company USDOT 62813 | Boise | 169 | 178 | 75 | 12.5% | 2 |
| Boise Sales Company USDOT 893344 | Boise | 127 | 107 | 62 | 10.2% | 3 |
| Globex Transport Inc USDOT 3035893 | Boise | 76 | 81 | 141 | 33.8% | 11 |
| BCT Inc USDOT 193053 | Boise | 74 | 75 | 94 | 25.0% | 8 |
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FAQ
What is the USDOT number of Knife River Corporation - Mountain West?
Knife River Corporation - Mountain West is registered with USDOT number 3111936 and operating authority MC-83161.
How many trucks does Knife River Corporation - Mountain West have?
It reports 374 power units (44 tractors, 322 straight trucks) and 305 trailers, with 275 drivers, on its last MCS-150 update (Jun 23, 2025).
Where is Knife River Corporation - Mountain West located?
Its registered physical address is in Boise, Idaho 83709.
What is the out-of-service rate of Knife River Corporation - Mountain West?
Over 24 months, 46.2% of vehicle inspections and 14.3% of driver inspections resulted in an out-of-service order (same-size national average: 18.3% vehicle, 2.0% driver).
Source: FMCSA Company Census File, SMS inspection file and Crash File (data.transportation.gov), refreshed 2026-11-04. Figures are as reported to FMCSA and may lag. How we calculate these numbers. Spotted an error? Carriers update their record with FMCSA via the MCS-150 form; see corrections.