KNIFE RIVER CORPORATION - MOUNTAIN WEST
DBA: KNIFE RIVER
Book with caution — review signals below
No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.
- OOS rate worse than size peers Driver and/or vehicle out-of-service rate is above the peer median.
Plain-text risk summary (print / paste)
TruckCodex risk summary — KNIFE RIVER CORPORATION - MOUNTAIN WEST (USDOT 3111936) Verdict: CAUTION Book with caution — review signals below No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking. Authority / census status: Active Active BIPD limit: $1,000,000 Blockers: (none) Cautions: • OOS rate worse than size peers — Driver and/or vehicle out-of-service rate is above the peer median. On file: • 1 active operating authority • Insurance on file · $1,000,000 — LIBERTY MUTUAL FIRE INSURANCE CO. · 91X • BOC-3 process agent on file — INTERSTATE AUTHORITY LLC Source: https://truckcodex.com/usdot/3111936/ As of: Jul 18, 2026 Always confirm on FMCSA SAFER and L&I before tendering — TruckCodex mirrors public filings and can lag by up to a day.
TruckCodex · compliance grade
Compliance grade B
Composite of 4/5 scored components (mean 79/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.
B
confidence 80% · 4/5 signals
Compliance grade B
Composite of 4/5 scored components (mean 79/100). Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.
Active census status with no OOS order or revoked authority on file.
Active BIPD/Primary-like policy on file in our insurance history.
Driver OOS 4.5% vs peer median 1.2% (worse). Vehicle OOS 40% vs peer median 16.7% (worse). n=2151 same-size ACTIVE peers.
FMCSA has not assigned this carrier a formal safety rating. We do not invent one.
NR reason: No published FMCSA safety_rating.
No BMC-91 insurance-lapse watch classification on file for this USDOT.
TruckCodex compliance grade from authority, BIPD, peer OOS, FMCSA safety rating, and insurance-watch signals. Not legal advice. See methodology. Booking triage on this page: Caution.
Company profile
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InsuranceLIBERTY MUTUAL FIRE INSURANCE CO.Policy effective Mar 20, 2018
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Process AgentINTERSTATE AUTHORITY LLCBOC-3 on file
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Operating AuthorityMC083161ACTIVE
Fleet details (MCS-150)
| Vehicle type | Owned | Term leased | Trip leased |
|---|---|---|---|
| Truck tractors | 29 | 15 | 0 |
| Trailers | 305 | 0 | 0 |
| Trucks | 242 | 80 | 0 |
Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).
Accident reports (24 months)
All 14 crashes →| Last 6 months | 6–12 months | 12–24 months | Total | |
|---|---|---|---|---|
| Fatalities | 0 | 0 | 0 | 0 |
| Injuries | 0 | 3 | 0 | 3 |
| Tow-away | 0 | 1 | 0 | 1 |
| Crash reports | 0 | 2 | 0 | 2 |
Reportable crashes from FMCSA MCMIS for the trailing 24 months. Counts may differ slightly from SAFER due to reporting lag.
Inspections (24 months)
All 34 inspections →| Driver | Vehicle | Hazmat | |
|---|---|---|---|
| Inspections | 20 | 20 | 0 |
| OOS inspections | 1 | 4 | 0 |
| OOS percentage | 5% | 20% | — |
| National average | 6.67% | 22.26% | 4.44% |
Roadside inspections in the last 24 months. National averages are FMCSA MCSAP reference rates (driver ~6.7%, vehicle ~23.4%, hazmat ~4.4%).
Carrier analysis & narrative context SEO summary, status notes, AI overview, and safety profiles
KNIFE RIVER CORPORATION - MOUNTAIN WEST is a motor carrier based in BOISE, ID, registered with the FMCSA under USDOT 3111936. The carrier is currently active in FMCSA's records, and has not yet received a formal FMCSA safety rating. MCS-150 self-reporting puts the fleet at 374 power units and 275 drivers, with 34 roadside inspections on file and a peak out-of-service rate of 40.0%. Use this page to verify the carrier's authority and insurance, review its inspection and crash history, and cross-reference live data on FMCSA SAFER before booking a load or onboarding a partner.
Carrier is unrated
FMCSA has not assigned this carrier a formal safety rating. Use the inspection history and BASIC scores below to assess on-road performance.
KNIFE RIVER CORPORATION - MOUNTAIN WEST is a large fleet, operating 374 power units and 275 drivers, based in Boise, ID. Across 22 roadside inspections in the last 24 months, the fleet recorded a 22.7% out-of-service rate, with 3 reportable crashes. BIPD/Primary insurance is on file with LIBERTY MUTUAL FIRE INSURANCE CO., and operating authority is active for common.
22 roadside inspections over the last 24 months, up 83% versus the prior 24 months, concentrated in ID (19) and OR (1), with Level 3 inspections the most common.
22.7% out-of-service rate; led by Vehicle Maintenance (50.0% of violations); top code 392.2 (Operating a CMV while ill or fatigued) cited 4 times.
The fleet comprises 374 power units (large fleet) and 275 drivers; Ford, Kenworth, and Oshkosh mo are the most-inspected makes.
Risk Signals
Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service
Compared against 2,151 ACTIVE carriers operating 187–561 power units (±50% of this carrier's 374 unit fleet).
Inspection Analytics Monthly activity · BASIC mix · state map
Monthly Inspection Activity (24 months)
Violations by BASIC Category
Activity by State
| State | Inspections | OOS | OOS % | Last Inspection |
|---|---|---|---|---|
| Idaho (ID) | 17 | 3 | 17.6% | Sep 24, 2025 |
| Oregon (OR) | 1 | 1 | 100.0% | May 1, 2025 |
| Washington (WA) | 1 | 1 | 100.0% | Jul 22, 2025 |
| Wyoming (WY) | 1 | 0 | 0.0% | Dec 12, 2024 |
Vehicle Fleet Top makes and models observed in roadside inspections
SMS BASIC Scores FMCSA Safety Measurement System per-BASIC scores
| BASIC | Inspections | Serious | Measure | Percentile | Alert | As Of |
|---|---|---|---|---|---|---|
| Driver Fitness | 1 | — | 0.20 | 0 | — | Jul 13, 2026 |
| Controlled Substances / Alcohol | 0 | — | 0.00 | 0 | — | Jul 13, 2026 |
| Hours of Service | 0 | — | 0.00 | 0 | — | Jul 13, 2026 |
| Unsafe Driving | 10 | — | 0.26 | 0 | — | Jul 13, 2026 |
| Vehicle Maintenance | 8 | — | 7.38 | 7 | — | Jul 13, 2026 |
Higher percentiles indicate worse performance relative to peer carriers. Carriers at or above the FMCSA intervention threshold are marked ALERT.
Recent Inspections (34 rows) View all 34 →
| Inspection # | Date ▼ | State | Level | Station | Vehicle | Violations | Top Codes | OOS |
|---|---|---|---|---|---|---|---|---|
| 85877139 | Sep 24, 2025 | ID | 3 | CALDWELL ID |
FORD STRAIGHT TRUCK
|
1 | 392.2-SLLSWZ | No |
| 85619191 | Aug 27, 2025 | ID | 2 | SAGE JUNCTION ID |
KENWORTH TRUCK TRACTOR
|
1 | 393.130B-CHVE | Yes |
| 85518242 | Aug 15, 2025 | ID | 3 | FORT HALL ID |
OSHKOSH STRAIGHT TRUCK
|
1 | 392.2-SLLS1 | No |
| 85502558 | Aug 14, 2025 | ID | 3 | LEWISTON ID |
FORD STRAIGHT TRUCK
Ticket: Courier
|
1 | 392.16-D | No |
| 85491517 | Aug 13, 2025 | ID | 3 | LEWISTON ID |
FORD STRAIGHT TRUCK
|
2 | 391.41APC, 392.16-D | Yes |
| 85466959 | Aug 11, 2025 | ID | 2 | IDAHO FALLS ID |
FORD STRAIGHT TRUCK
|
2 | 393.78A-WS, 393.9A-LIL | No |
| 85330270 | Jul 22, 2025 | WA | 2 | CLARKSTON WA |
KENWORTH STRAIGHT TRUCK
|
4 | 393.100B-C, 393.9A-LLPL, 393.9B-LSLO | Yes |
| 85037966 | Jun 24, 2025 | ID | 3 | CALDWELL ID |
KENWORTH TRUCK TRACTOR
|
1 | 392.2-SLLS1 | No |
| 84860625 | Jun 3, 2025 | ID | 2 | POCATELLO ID |
FORD STRAIGHT TRUCK
|
3 | 392.2-SLLMF, 393.95F, 393.95A1 | No |
| 84553370 | May 1, 2025 | OR | 2 | HUNTINGTON OR |
KENWORTH TRUCK TRACTOR
|
1 | 393.75A3-TAOL | Yes |
| 83635325 | Jan 16, 2025 | ID | 3 | LEWISTON ID |
FORD STRAIGHT TRUCK
|
2 | 392.2-SLLSIV, 392.16-D | No |
| 83388686 | Dec 12, 2024 | WY | 1 | CASPER POE |
KENWORTH TRUCK TRACTOR
|
0 | — | No |
| 83102075 | Nov 6, 2024 | ID | 2 | LEWISTON ID |
PETERBILT STRAIGHT TRUCK
|
1 | 392.16-D | No |
| 82855120 | Oct 3, 2024 | ID | 1 | IDAHO FALLS ID |
FORD STRAIGHT TRUCK
|
2 | 393.55C2, 393.9A-LIL | No |
| 82753828 | Sep 24, 2024 | ID | 1 | IDAHO FALLS ID |
FORD STRAIGHT TRUCK
|
3 | 393.43(d), 393.9(a), 392.2 | Yes |
| 82517818 | Aug 27, 2024 | ID | 1 | SAGE JUNCTION ID |
OSHKOSH STRAIGHT TRUCK
|
2 | 393.78(a), 396.3(a)(1) | No |
| 82368251 | Aug 7, 2024 | ID | 3 | IDAHO FALLS ID |
OSHKOSH STRAIGHT TRUCK
|
0 | — | No |
| 82323693 | Aug 6, 2024 | ID | 3 | BOISE ID |
KENWORTH STRAIGHT TRUCK
|
2 | 383.71(c), 392.2 | No |
| 82311655 | Aug 5, 2024 | ID | 3 | REXBURG ID |
OSHKOSH STRAIGHT TRUCK
|
1 | 392.16(a) | No |
| 82275155 | Jul 31, 2024 | ID | 3 | BOISE ID |
KENWORTH TRUCK TRACTOR
|
2 | 396.17(c), 392.2 | No |
| 82025764 | Jun 18, 2024 | ID | 3 | I15MP116 |
OSHKOSH STRAIGHT TRUCK
|
1 | 392.2 | No |
| 81887114 | Jun 14, 2024 | ID | 3 | MERIDIAN ID |
INTERNATIONAL TRUCK TRACTOR
|
1 | 392.16(a) | No |
| 80319294 | Nov 30, 2023 | ID | 2 | IDAHO FALLS ID |
KENWORTH STRAIGHT TRUCK
|
0 | — | No |
| 79956187 | Oct 17, 2023 | ID | 3 | SH128MP1 |
KENWORTH TRUCK TRACTOR
|
1 | 392.16(a) | No |
| 79927100 | Oct 12, 2023 | ID | 3 | LEWISTON ID |
FORD STRAIGHT TRUCK
|
1 | 392.16-D | No |
Recent Crashes (14 rows)
| Report # | Date ▼ | State | Fatalities | Injuries | Tow | Hazmat | Severity |
|---|---|---|---|---|---|---|---|
| ID25C7107300 | Nov 5, 2025 | ID | 0 | 1 | No | No | Injury |
| ID25C7113020 | Nov 4, 2025 | ID | 0 | 2 | Yes | No | Injury |
| ID24C6680990 | Jun 13, 2024 | ID | 0 | 0 | Yes | No | Tow |
| ID24C6625020 | Apr 10, 2024 | ID | 0 | 1 | No | No | Injury |
| ID23C6327290 | May 4, 2023 | ID | 0 | 1 | Yes | No | Injury |
| ID22C6095260 | Aug 4, 2022 | ID | 0 | 0 | Yes | No | Tow |
| ID21C5809520 | Aug 24, 2021 | ID | 0 | 0 | Yes | No | Tow |
| ID21C5788890 | Jul 27, 2021 | ID | 0 | 0 | Yes | No | Tow |
| ID21C5769050 | Jun 21, 2021 | ID | 0 | 0 | Yes | No | Tow |
| ID21C5660800 | Feb 9, 2021 | ID | 0 | 0 | Yes | No | Tow |
| ID20C5579550 | Oct 27, 2020 | ID | 0 | 0 | Yes | No | Tow |
| ID19C5242400 | Aug 9, 2019 | ID | 0 | 2 | Yes | No | Injury |
| ID19C5068400 | Jan 3, 2019 | ID | 0 | 1 | Yes | No | Injury |
| ID18C4885260 | May 30, 2018 | ID | 0 | 0 | Yes | No | Tow |
Authority Records (1 docket)
MC Certificate Documents (1 PDF)
Authority Records (above) are FMCSA docket status and lifecycle events. MC Certificate Documents here are the archived PDF letters for each action — grants, reinstatements, revocations, name changes, and transfers. They are related but not the same dataset: one row per PDF letter, not one file per docket.
Click a row to open that specific letter. Multiple letters per docket are listed separately by action type and date.
Insurance Coverage Timeline (3 rows)
Every insurance policy on file, newest effective date first. Amber rows mark BIPD/Primary coverage gaps.
| Insurer | Policy # | Type | Limit | Effective | Cancel | Status |
|---|---|---|---|---|---|---|
| LIBERTY MUTUAL FIRE INSURANCE CO. | AI2-641-005097-05 | 91X | $1,000,000 | Mar 20, 2018 | On file | ACTIVE |
| LIBERTY MUTUAL FIRE INSURANCE CO. | AI2-641-005097-05 | BIPD/Primary | — | Mar 20, 2018 | Mar 20, 2018 | REPLACED |
| LIBERTY MUTUAL FIRE INSURANCE CO. | AI2-641-005097-05 | BIPD/Primary | — | Mar 20, 2018 | Mar 20, 2018 | REPLACED |
Compliance Timeline Merged authority / insurance / enforcement events
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Apr 6, 2018
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Mar 20, 2018insuranceTERM/REPL — LIBERTY MUTUAL FIRE INSURANCE CO.
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for
Most-Inspected Stations
| Station | State | Inspections | OOS |
|---|---|---|---|
| IDAHO FALLS ID | ID | 5 | 1 |
| LEWISTON ID | ID | 5 | 1 |
| BOISE ID | ID | 2 | 0 |
| CALDWELL ID | ID | 2 | 0 |
| SAGE JUNCTION ID | ID | 2 | 1 |
| ALPINE POE | WY | 2 | 1 |
| BEACHES CORNER PORT OF ENTRY | ID | 1 | 0 |
| BOISE | ID | 1 | 0 |
| FORT HALL ID | ID | 1 | 0 |
| I15MP116 | ID | 1 | 0 |
Top Violation Codes Cited
| Code | Description | Category | Cited | OOS |
|---|---|---|---|---|
| 392.2 | Violation of Local Laws - Explain: | Unsafe Driving | 7 | 0 |
| 392.16(a) | Failing to use seat belt (49 CFR) | Unsafe Driving | 4 | 0 |
| 396.3(a)(1) | Inspection, repair and maintenance of parts and accessories | Vehicle Maintenance | 3 | 2 |
| 396.17(c) | Operating a CMV without proof of a periodic inspection | Vehicle Maintenance | 2 | 0 |
| 383.71(c) | CDL Holder Failing To Apply Or Transfer With New State Of Domicile Within 30 Days Of Establishing His/Her New Domicile. | Driver Fitness | 1 | 0 |
| 391.41(a)(1) | 391.41(a)(1) | Driver Fitness | 1 | 0 |
| 393.43(d) | No or defective automatic trailer brake | Vehicle Maintenance | 1 | 1 |
| 393.47(e) | Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt | Vehicle Maintenance | 1 | 0 |
| 393.53(b) | CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | 1 | 0 |
| 393.55(d)(2) | CMV manufactured on/after 3/1/2001 not equipped with ABS malfunction circuit / lamp from towed vehicle in cab. | Vehicle Maintenance | 1 | 0 |
Related Records Cross-references to every adjacent page
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Idaho carriers
All carriers based in Idaho
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Boise carriers
Carriers based in Boise, ID
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Stations in Idaho
Where this carrier might be inspected
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Docket MC083161
common · ACTIVE · MC
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LIBERTY MUTUAL FIRE INSURANCE CO.
91X policy on file
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INTERSTATE AUTHORITY LLC
BOC-3 process agent · 51,604 carriers served
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34 inspections
Full roadside inspection history
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14 reportable crashes
FMCSA MCMIS crash log
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Fleet recall search
NHTSA recalls covering this fleet's vehicle years/makes
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File a complaint
Open the FMCSA National Consumer Complaint form for this carrier
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FMCSA compliance filings guide
MCS-150, insurance, and authority filing requirements
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Roadside inspection rights
What drivers and carriers can expect during a stop
How to verify KNIFE RIVER CORPORATION - MOUNTAIN WEST
- Verify USDOT and MC numbers match the carrier's documents. Compare the USDOT number and MC docket on this page to the numbers on the carrier's invoice, rate confirmation, or load-board listing. A mismatch between the carrier's claimed numbers and the registered legal name is the single most common red flag.
- Check active operating authority and insurance status. Confirm the Authority Records show at least one ACTIVE docket for the type of operation you're booking, and that the Active Insurance card lists a current BIPD/Primary policy. A revoked authority or uninsured carrier cannot legally operate.
- Review safety rating and SMS BASIC scores. Check the carrier's FMCSA safety rating (if any) and the SMS BASIC table. A high percentile in any BASIC category — especially Unsafe Driving, HOS, or Vehicle Maintenance — is worth investigating before tendering a load.
- Examine inspection and crash history. Open the Inspection History and Crash History subpages for the full record. Look for patterns: repeat OOS findings on the same unit, multiple crashes in a short window, or violations clustered in one BASIC category.
- Cross-reference real-time data with FMCSA SAFER. For the most current snapshot — within 24 hours of any insurer filing or authority change — click through to the FMCSA SAFER lookup. TruckCodex mirrors SAFER and L&I daily; SAFER itself reflects filings within 24 hours.
Frequently asked questions about KNIFE RIVER CORPORATION - MOUNTAIN WEST
Is KNIFE RIVER CORPORATION - MOUNTAIN WEST an active motor carrier? ▾
What is KNIFE RIVER CORPORATION - MOUNTAIN WEST's safety rating? ▾
How many inspections has KNIFE RIVER CORPORATION - MOUNTAIN WEST had? ▾
What is KNIFE RIVER CORPORATION - MOUNTAIN WEST's out-of-service rate? ▾
Where is KNIFE RIVER CORPORATION - MOUNTAIN WEST based? ▾
Does KNIFE RIVER CORPORATION - MOUNTAIN WEST have valid operating authority? ▾
How many trucks and drivers does KNIFE RIVER CORPORATION - MOUNTAIN WEST operate? ▾
Has KNIFE RIVER CORPORATION - MOUNTAIN WEST had any crashes? ▾
About FMCSA carrier records
Every commercial motor carrier operating in the United States is required to register with the Federal Motor Carrier Safety Administration (FMCSA) and obtain a USDOT number. The USDOT number is a permanent, unique identifier — once assigned, it stays with the carrier for life and is never reissued to another company. Carriers must update their registration every two years on Form MCS-150 to keep their address, fleet size, and operating data current.
Carrier safety data lives in FMCSA's Motor Carrier Management Information System (MCMIS): roadside inspections, crashes, out-of-service findings, and the seven Behavior Analysis and Safety Improvement Categories (BASICs) that make up the SMS scoring methodology. For-hire carriers must also hold operating authority — an MC, FF, or MX docket number — which is separate from the USDOT number and requires continuous insurance and BOC-3 process-agent filings to remain active.
TruckCodex mirrors FMCSA's public SAFER and L&I systems on a daily refresh cycle. Every record on this page reflects what FMCSA has on file. We do not edit or modify carrier data — for real-time confirmation immediately before a transaction, click through to the FMCSA SAFER lookup linked in the related records section above. Safety ratings, when present, come from formal compliance reviews; most active carriers have not been reviewed and are correctly listed as unrated.
Data sources & freshness
TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.