MT➜ID
This 361 mile haul crosses state lines, triggering Federal FMCSA jurisdiction.
ROUTE ADVISORIES
- MT: Black ice common on mountain passes.
MANDATORY FILINGS
The Route: Montana to Idaho
This route guide outlines a common and efficient path for commercial truck drivers traveling from Montana to Idaho. The primary Interstate Highways used will be I-90.
Starting Point: Assume your journey begins near Billings, MT.
Billings to Butte (MT): Begin by heading west on I-90. This stretch is predominantly flat with some rolling hills.
Butte to Missoula (MT): Continue west on I-90. This segment becomes more mountainous as you approach the Continental Divide. Be prepared for inclines and descents, especially around Homestake Pass.
Missoula to Coeur d'Alene (ID): Continue west on I-90. This leg passes through the Bitterroot National Forest. Pay attention to posted speed limits, especially in construction zones, and watch for wildlife.
Coeur d'Alene to Destination (ID): From Coeur d'Alene, you can continue west on I-90 towards Spokane, WA, or branch off onto other state highways (e.g., US-95) depending on your final destination within Idaho.
Compliance & Permits
Commercial truck drivers are responsible for adhering to all state and federal regulations. Here are some key considerations for your Montana-to-Idaho route:
Weigh Stations/Ports of Entry: Be aware of the following potential weigh station locations:
- Montana: Look for weigh stations along I-90 between Billings and Butte, and further west nearing the Idaho border. Locations may vary, so heed signage carefully.
- Idaho: Idaho operates weigh stations near the border as well as throughout the state. Be prepared to stop at these locations if directed. Pay close attention to the Idaho Transportation Department's website for specific locations and current operational statuses.
Permits: Currently, neither Montana nor Idaho requires any state-specific permits for general freight operations beyond the standard IRP (International Registration Plan) and IFTA (International Fuel Tax Agreement). However, this is subject to change. Always verify current regulations with the respective state DOT (Department of Transportation) before departure, especially for oversized or overweight loads. Check the Idaho Transportation Department (ITD) and Montana Department of Transportation (MDT) websites for the latest information.
Risks & Hazards
The Montana-to-Idaho route presents unique challenges based on the time of year.
Winter (October - April): Expect significant snowfall, icy conditions, and blizzard-like conditions, especially in the mountain passes. Chain laws are frequently enforced. Carry chains and know how to install them. Monitor weather forecasts closely before and during your trip. Mountain passes can close unexpectedly due to severe weather.
Summer (June - August): Wildfires are a significant concern. Smoke can reduce visibility dramatically. Be aware of fire restrictions and road closures. Heat can also impact tire pressure and engine performance; ensure proper maintenance and monitoring. Additionally, construction projects are more prevalent during the summer months, leading to potential delays.
General: Wildlife, particularly deer and elk, can be a hazard, especially at dawn and dusk. Maintain a safe following distance. Be aware of changing road conditions, especially in mountainous terrain. Fatigue is a major risk for long-haul drivers; ensure you are compliant with hours-of-service regulations and take adequate rest stops.
NEW AUTHORITY?
If this is your first time crossing state lines, you need a new MC Number (Operating Authority).
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