HaulerCheck · https://haulercheck.com/carrier/3111936-knife-river-corporation-mountain-west/ · Checked 2026-10-20 08:23 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: FMCSA Motus · Oct 19, 2026
KNIFE RIVER CORPORATION - MOUNTAIN WEST
Doing business as KNIFE RIVER
Review before booking · 1 signal
How risk signals workFacts from the FMCSA record that call for a closer look. They are not a finding of wrongdoing.
- Vehicle out-of-service rate well above the state average46.2% vs Idaho average 24.4%.
No cargo cover filed with FMCSA
Green means the FMCSA record shows it. It does not confirm who you are talking to, or that a policy covers your specific load.
What to verify next
- Confirm authority and insurance on the official Motus record ↗. Safety record: SAFER ↗.
- Call back on the number on file, (208) 362-6152, not a number from an email or load board.
- Check that the MC number you were given is MC83161.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
Liability (BI&PD) pays for injury and damage to other people and property; it does not cover the freight. Cargo insurance covers the freight. FMCSA only requires cargo filings from household goods carriers and freight forwarders, so most carriers file none: ask for a cargo certificate that fits your load. No cargo cover filed with FMCSA.
| Type | Docket | Layer | Insurer | Coverage | Effective | Status |
|---|---|---|---|---|---|---|
| Liability (BI&PD) | MC83161 | Primary | Liberty Mutual Insurance Company Policy AI2-641-005097-05 · BMC-91X | $1,000,000 | Mar 20, 2018 | Active |
Source: FMCSA Motus · Oct 19, 2026. Identical filings repeated in the FMCSA data are shown once; a filing listed under two dockets is one policy, not extra coverage. Coverage is the maximum amount filed with FMCSA, not the full policy.
Confirm current filings: Motus record ↗ and ask the insurer for a certificate naming you as holder.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
6 of 13 · Idaho avg 24.4%
3 of 22 · Idaho avg 6.1%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Oct 1, 2026 | ID | 2 | 2 | Yes |
| Oct 1, 2026 | ID | 3 | 2 | No |
| Sep 17, 2026 | MT | 1 | 3 | Yes |
| Aug 27, 2026 | MT | 1 | 3 | No |
| Aug 26, 2026 | ID | 3 | 2 | Yes |
| Aug 5, 2026 | ID | 2 | 2 | Yes |
| Jul 1, 2026 | ID | 2 | 0 | No |
| Jun 24, 2026 | ID | 1 | 20 | Yes |
| Apr 9, 2026 | ID | 3 | 1 | No |
| Sep 24, 2025 | ID | 3 | 1 | No |
How these rates are calculated
Period: Oct 19, 2024 – Oct 19, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Idaho average covers 10,511 vehicle and 19,028 driver inspections of all Idaho-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
31 violations counted in FMCSA's Safety Measurement System (SMS), 8 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 55 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Idaho share |
|---|---|---|---|---|
| Vehicle Maintenance | 21 | 5 | 67.7% | 68.6% |
| Unsafe Driving | 7 | 0 | 22.6% | 11.2% |
| Driver Fitness | 3 | 3 | 9.7% | 4.8% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Driver - Failed to use seat belt while operating a CMV Seat Belt · Unsafe Driving · code 39216D | 4 | 0 |
| Lighting - Identification lamp(s) inoperative Clearance Identification Lamps/Other · Vehicle Maintenance · code 3939ALIL | 3 | 0 |
| Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or Physical · Driver Fitness · code 39111B4 | 2 | 2 |
| Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt Brakes Out of Adjustment · Vehicle Maintenance · code 39347E | 2 | 0 |
| Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency Medical Certificate · Driver Fitness · code 39141APC | 1 | 1 |
| Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination Brake Out Of Service · Vehicle Maintenance · code 3963A1BOS | 1 | 1 |
| Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV Improper Load Securement · Vehicle Maintenance · code 393100BC | 1 | 1 |
| Heavy Vehicles/Equipment - Improper securement of accessory equipment or articulated vehicles Improper Load Securement · Vehicle Maintenance · code 393130BCHVE | 1 | 1 |
| Steering - Steering column has looseness in the u-bolt or positioning part Steering Mechanism · Vehicle Maintenance · code 393209CSTSCL | 1 | 1 |
| Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS Tires · Vehicle Maintenance · code 39375A3TAOL | 1 | 1 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the Idaho column is the mix across all Idaho-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 19, 2024 – Oct 19, 2026
7 most recent crashes
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Sep 22, 2026 | Jerome, ID | 0 | 0 |
| Aug 5, 2026 | Ketchum, ID | 0 | 1 |
| Jun 24, 2026 | Wendell, ID | 0 | 1 |
| May 11, 2026 | Chubbuck, ID | 0 | 0 |
| Apr 14, 2026 | Caldwell, ID | 0 | 0 |
| Nov 5, 2025 | Emmett, ID | 0 | 1 |
| Nov 4, 2025 | Idaho Falls, ID | 0 | 2 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 3111936 |
|---|---|
| MC / docket | MC83161 |
| Legal name | KNIFE RIVER CORPORATION - MOUNTAIN WEST |
| DBA name | KNIFE RIVER |
| Operation | Interstate |
| Business type | — |
| Power units | 374 |
| Drivers | 275 |
| Annual mileage | 6,167,300 (2024) |
| Hazmat | Yes |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Mar 20, 2018 · 8 years ago |
| Last MCS-150 update | Jun 23, 2025 |
Cargo carried
General FreightMetal: Sheets, Coils, RollsMotor VehiclesBuilding MaterialsMachinery, Large ObjectsLiquids/GasesChemicalsUtilitiesConstructionOtherConstruction
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about KNIFE RIVER CORPORATION - MOUNTAIN WEST
What does KNIFE RIVER CORPORATION - MOUNTAIN WEST's operating authority allow?
MC83161: Motor carrier (may haul regulated property for hire).
Which information about KNIFE RIVER CORPORATION - MOUNTAIN WEST is old or missing?
FMCSA has not issued a safety rating, which means no compliance review is on record, not that the carrier is unsafe.
What should I verify before booking KNIFE RIVER CORPORATION - MOUNTAIN WEST?
Confirm the authority and insurance on the Motus record for USDOT 3111936. Call the company back on the phone number on file, (208) 362-6152, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC83161, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Boise, ID →
Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-20 08:23 UTC.