Billings MT to Boise ID Heavy Equipment Transport Guide
The Billings, MT to Boise, ID corridor covers approximately 615 miles through some of the most scenic — and logistically demanding — terrain in the Northwest. This route crosses Montana's Beartooth foothills, traverses southern Idaho's Snake River Plain, and requires careful permit coordination across two states with distinct oversize regulations. IronHaul Logistics moves excavators, dozers, cranes, and other heavy machinery on this lane regularly, managing Montana and Idaho permits, pilot car requirements, and seasonal routing adjustments.
Route Overview: Billings MT to Boise ID
The standard routing for heavy equipment transport from Billings to Boise follows I-90 west to Butte, MT, then I-15 south to Pocatello, ID, and finally I-84 west to Boise — approximately 615 miles total. An alternative route via US-20 through Twin Falls is sometimes used for loads with height restrictions that conflict with specific bridge clearances on the I-84 corridor.
Transit time is typically 2 to 3 days for standard oversize loads, accounting for permit processing and Montana's daylight-only travel requirements for certain load dimensions. The route passes through Butte, Dillon, and Pocatello — all of which have weigh stations where permits and credentials are verified.
Montana Oversize Permit Requirements
Montana issues single-use oversize permits valid for 3 days. Key thresholds:
- Width: Legal limit is 8.5 ft. Loads 12.5–16.5 ft wide require a front pilot car on non-interstate highways; loads over 16.5 ft wide require front and rear pilots.
- Height: Legal limit is 14 ft. Loads over 14 ft require a permit; route surveys are mandatory for loads over 15.5 ft to verify bridge clearances.
- Travel hours: Interstate travel is permitted 24/7 for loads up to 18 ft wide. Non-interstate travel is more restricted — loads over 10 ft wide are limited to daylight hours on most secondary roads.
- Holidays: Oversize movements on non-interstate highways are generally prohibited on major holidays.
Idaho Oversize Permit Requirements
Idaho permits are issued by the Idaho Transportation Department (ITD). Key thresholds:
- Width: Legal limit is 8.5 ft. Loads over 14 ft wide require a front escort; loads over 16 ft wide require front and rear escorts.
- Height: Legal limit is 14 ft. Loads over 14.5 ft require route surveys for bridge clearances.
- Weight: 80,000 lbs GVW is the standard limit; overweight permits are available for loads up to 105,500 lbs on designated routes.
- Travel hours: Oversize loads are generally restricted to daylight hours (one hour after sunrise to one hour before sunset) on non-interstate roads.
Trailer Selection for This Lane
| Equipment Type | Recommended Trailer | Notes |
|---|---|---|
| Tracked excavator (20–50 ton) | RGN / Lowboy | Drive-on loading; oversize permit required for width |
| Bulldozer (D6–D9 class) | Lowboy or RGN | Blade must be removed or secured; height often 13–14.5 ft loaded |
| Motor grader | Lowboy | 38,000–57,000 lbs; oversize permit required |
| Skid steer / compact track loader | Step-deck or flatbed | Often within legal dimensions; verify height with cab |
| Crane boom sections | Extendable flatbed | Length may require oversize permit; route survey for bridges |
Seasonal Routing Considerations
Winter weather (November–March) is the primary seasonal challenge on this lane. The Homestake Pass section of I-90 near Butte, MT (elevation 6,375 ft) and Monida Pass on I-15 (elevation 6,823 ft) can experience closures or chain requirements during heavy snowfall. Carriers typically monitor WYDOT and MDT road condition alerts and may hold loads at Billings or Butte until passes clear. Spring weight restrictions on Montana secondary roads (February–April) can affect pickup and delivery access at remote job sites, though Interstate routes are generally exempt.
Common Equipment Moved on This Lane
- Excavators and dozers from Montana mining and construction operations relocating to Idaho projects
- Drilling rigs and directional drill equipment from Bakken-adjacent operations moving west
- Agricultural equipment (large tractors, combines) from Montana farms to Idaho dealers
- Generators and compressors from Montana oil-field support companies
- Crane components from Billings-area rental yards to Boise construction sites
Moving heavy equipment from Billings to Boise? IronHaul Logistics handles Montana and Idaho permit coordination, pilot car scheduling, and trailer selection for every load on this corridor. Call (208) 495-2260, email [email protected], or submit a quote request online — we'll get your equipment moving safely and on schedule.
Common questions
How long does it take to ship heavy equipment from Billings MT to Boise ID?
Transit time is typically 2 to 3 days for the approximately 615-mile route. Montana's daylight-only travel requirements for certain load dimensions and permit processing time (1–3 business days) are the primary scheduling factors.
Do I need pilot cars for an oversize load from Montana to Idaho?
It depends on load width. In Montana, loads 12.5–16.5 ft wide require a front pilot on non-interstate roads; over 16.5 ft requires front and rear. Idaho requires a front escort for loads over 14 ft wide. IronHaul coordinates all escort vehicles as part of the move.
Are there mountain pass closures that could delay my shipment?
Yes. Homestake Pass (I-90 near Butte) and Monida Pass (I-15) can close during heavy winter snowfall. IronHaul monitors road conditions and holds loads at safe staging points until passes reopen, minimizing delays.
What is the weight limit for oversize loads in Idaho?
Idaho's standard GVW limit is 80,000 lbs. Overweight permits are available for loads up to 105,500 lbs on designated routes. Loads exceeding this require superload permits with engineering review.
Can I ship a non-operational excavator from Billings to Boise?
Yes. Non-operational equipment requires crane or forklift loading assistance at origin and destination. IronHaul coordinates loading equipment as needed — just let us know the machine's condition when requesting a quote.
Ready to move a machine?
Tell us what you're shipping and where. We quote direct — no bidding wars, no load-board runaround.