What is MC number 83161?

MC number 83161 is assigned to Knife River Corporation - Mountain West, a registered motor carrier with the FMCSA under USDOT number 3111936.

Is Knife River Corporation - Mountain West Safe? DOT 3111936 – Safety Rating, Crashes & Violations

This carrier is active. Review the inspection and crash data below.

Knife River Corporation - Mountain West is a registered motor carrier with the FMCSA under USDOT number 3111936. The company operates from Boise, ID and maintains an active operating status with 374 power units and 275 drivers on record.

Safety Rating

FMCSA Safety Rating

— Not Rated

No formal safety rating has been assigned to Knife River Corporation - Mountain West by the FMCSA. View official FMCSA record →

Inspection Summary

All-time Inspections

All-time

Total

OOS

Driver OOS

Vehicle OOS

22 inspections reflects moderate road activity.

OOS Rate22.73%

The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 22.7% — above the national vehicle OOS average of ~21%. Review BASICS scores below.

Crash History

Crash Records

All-time

Total

Fatal

Injuries

Tow-Away

4 crashes on record. This is within a common range for active carriers — assess relative to fleet size and inspection volume.

BASICS Safety Scores

BASICS Scores

Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories

0.3

Unsafe Driving

Measures violations related to speeding, reckless driving, and improper lane changes.

0.0

HOS Compliance

Tracks hours-of-service violations, including driving beyond legal limits without rest.

0.2

Driver Fitness

Reflects issues with driver qualifications, licenses, and medical certifications.

0.0

Controlled Substances

Captures drug and alcohol violations, including failed or refused tests.

7.2

Vehicle Maintenance

Reflects brake, tire, lighting, and other equipment-related inspection violations.

Scores above 65 (general freight) or 50 (passenger/hazmat) trigger an FMCSA Alert. Higher scores indicate more safety risk. National median is approximately 20–30 for active carriers.

Other Carriers in Boise, ID

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Carrier Insight

Knife River Corporation - Mountain West is a large motor carrier operating in Idaho. With 22 total inspections on record, the carrier has an out-of-service rate of 22.7%, which exceeds the national average of approximately 21%. 4 crashes have been reported. Review crash details alongside fleet size and inspection history before making hiring decisions.

Knife River Corporation - Mountain West has not received a formal safety rating from the FMCSA. This is common for smaller or newer carriers and does not necessarily indicate a safety problem.

The company operates 374 power units and employs 275 drivers. This fleet size places it among the larger carriers in the FMCSA registry.

Frequently Asked Questions

What is USDOT Number 3111936?

USDOT number 3111936 is assigned to Knife River Corporation - Mountain West, an active motor carrier registered with the FMCSA, based in Boise, ID.

How many inspections has Knife River Corporation - Mountain West had?

Knife River Corporation - Mountain West has recorded 22 total inspections with 5 out-of-service orders, representing an OOS rate of 22.73%.

Where is Knife River Corporation - Mountain West located?

Knife River Corporation - Mountain West is headquartered at 5450 W Gowen Rd, Boise, ID 83709.

What does "Not Rated" mean?

"Not Rated" means the FMCSA has not conducted a formal compliance review for this carrier. It does not indicate a safety problem — many active carriers operate without a formal rating.

Is zero crashes always a good sign?

Generally yes, but context matters. A carrier with zero crashes and very few inspections may simply have limited road exposure. Always review crash data alongside inspection volume and fleet size.

What is a normal OOS rate?

The national average vehicle out-of-service rate is approximately 21%. Driver OOS averages around 5%. Rates significantly above these thresholds may indicate recurring compliance issues.

How often is FMCSA data updated?

FMCSA publishes updated carrier data monthly. This page reflects the most recent available snapshot, updated on the date shown above.

What is the MC number for Knife River Corporation - Mountain West?

The MC number for Knife River Corporation - Mountain West is MC# 83161. The MC number is issued by the FMCSA and authorizes carriers to operate in interstate commerce.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 3111936 · Last updated: 2026-03-09. View official FMCSA record →

Knife River Corporation - Mountain West (DOT# 3111936 · MC# 83161) – FMCSA Carrier Profile