Zion 2026 Large Vehicle Rules: What RVers Need to Know

Heading to Zion National Park this summer? If you are planning to drive a motorhome, tow a trailer, or travel in a larger vehicle, here is what you need to know.

Beginning June 7, 2026, Zion National Park will fully enforce vehicle size and weight limits on the Zion-Mount Carmel Highway (Utah State Route 9) between Canyon Junction and the East Entrance. Vehicles that exceed the posted limits will no longer be allowed to travel this section of SR-9.

These restrictions apply to the entire stretch of highway between Canyon Junction and the East Entrance, not just the historic 1.1-mile-long Zion-Mount Carmel Tunnel.

What’s Changing?

Currently, certain oversized vehicles can purchase a tunnel permit and travel through the Zion-Mount Carmel Tunnel with ranger escort during limited hours. However, that is set to change later this year.

Beginning June 7, 2026:

• The tunnel permit option will be eliminated.
• Any vehicle that exceeds the established size or weight limits will be required to reroute.
• Oversized vehicles will not be permitted past Canyon Junction toward the East Entrance.

The changes are based on safety studies and federal highway validation. The road includes tight curves, narrow lanes, historic bridges, and infrastructure that was not designed for modern oversized vehicles.

Will You Be Affected?

Use the following information to determine whether your vehicle can legally travel the Zion-Mount Carmel Highway between Canyon Junction and the East Entrance.

Measure Your Vehicle

Measurements include mirrors, tires, rooftop A/C units, bike racks, satellite dishes, and all attachments. Pay particular attention to the overall width, including mirrors. That is where the majority of RVers will be affected. Another common hurdle will be the trailer length, measured from the hitch to the rear axle.

Single Vehicle Limits

Tow vehicle without a trailer, a motorhome, or a dinghy vehicle

If your vehicle exceeds any one of the above limits, you must reroute.

Combined Vehicle Limits

Tow vehicle and trailer, a motorhome and dinghy vehicle, or any other towing setup

Again, exceeding any single limit found above means you cannot travel this section of SR-9.

Important

If your vehicle exceeds any of the limits above and you arrive at the South or East Entrance, park staff will direct you to turn around safely.

Exceptions at the South Entrance may apply only if you are:

• Parking in the large vehicle lot at the Visitor Center and space is available
• Staying at Zion Lodge with a valid pass
• Driving during shuttle off season
• Camping at Watchman Campground or South Campground when open

Oversized vehicles will not be permitted beyond Canyon Junction toward the East Entrance.

Over the Limit(s)? What Are Your Options?

If your RV or towing setup exceeds the limits, you still have access to Zion National Park. You simply need to plan your approach differently.

Option 1: Use the South Entrance and Park

If space allows, you may:

• Park at the Zion Canyon Visitor Center large vehicle lot
• Camp at Watchman or South Campground
• Use the shuttle, bike, or walk to explore Zion Canyon during shuttle season

This allows you to enjoy the park without traveling the restricted highway.

Option 2: Take a Paved Alternate Route

Oversized vehicles must bypass the Zion-Mount Carmel Highway using state highways.

South of Zion Route

Route: Take SR-59 east of Hurricane, then continue on Arizona SR-389 and US-89 to reach the east side of SR-9.

• Distance: 80 miles
• Drive time: 1.5–2 hours
• Road type: Fully paved

This is a good option if you’d like to add stops in Kanab or the North Rim of the Grand Canyon.

Note: Avoid Sheep Bridge Road (see below). Some navigation apps may suggest it. It is a dirt road with steep sections and is NOT recommended for large vehicles.

North of Zion Route

Route: Take I-15 north from Anderson Junction to SR-20, and then from SR-20 head south on US-89.

• Distance: 161 miles
• Drive time: 3–4 hours
• Road type: Fully paved

This is a good option for adding stops to Bryce Canyon or Cedar City.

Note: Avoid SR-14 and SR-143 as alternate shortcuts. These roads have steep grades and sharp curves that are NOT recommended for large vehicles.

Unpaved Routes to Avoid

These are NOT recommended for large or low clearance vehicles:

What Happens if You Ignore the Restrictions?

If your vehicle exceeds limits and you attempt to travel the restricted section:

• You will be turned around at the entrance station
• You may need to add significant drive time to reroute
• You could encounter narrow curves and bridge weight limits that pose safety risks

The highway includes tight switchbacks, narrow lanes, historic bridges, and infrastructure built in 1930 for smaller vehicles. Planning ahead prevents stress and protects your rig, other travelers, and the park.

Safe Travel Planning

Even if your RV meets the size requirements, careful planning is still important.

1. Confirm Your Rig’s True Measurements

Do not rely on brochure specs alone. Many RVs sit higher or are longer than expected once fully equipped. Be sure to measure:

• Total length including bike racks
• Total height including everything on the roof: A/C units, vent covers, solar panels, etc.
• Width including mirrors
• Actual loaded weight

2. Be Aware of Seasonal Closures

Always check current conditions before arrival.

• Zion Canyon Scenic Drive is closed to private vehicles from early March through late November. Shuttle required.
• Upper Kolob Terrace Road and Lava Point Road often close in winter.
• SR-9 may temporarily close during peak congestion, rockslides, flooding, or wildfire events.

3. Set Up Safe Routing with RV LIFE

To avoid routing issues:

Step 1: Update RV Garage in Your Profile

RV LIFE Garage lets you manage important information about your RV. It provides a convenient place to view and update your vehicle information and record important details like your RV’s measurements, fuel info, mileage and more to help you stay organized and keep your RV information up to date.

You can access your RV Garage through your RV LIFE Profile. You can do this via profile.rvlife.com, RV LIFE Trip Wizard, RV LIFE Campgrounds or the RV LIFE Mobile app. Begin by clicking on Account Settings.

Under the Profile, Garage, & Preferences Heading, click Your RV Garage:

This opens the RV Garage screen, where you can edit the details of your RV.

• Enter accurate height of the RV
• Enter total length of the RV
• Enter weight of the RV and tow vehicle
• Enter additional information if applicable

Note: When accessing via the RV LIFE Mobile app, you’ll skip the Account Settings step. Tapping your Profile icon will take you directly to that screen.

Step 2: Use RV Safe Routing

RV LIFE’s RV Safe routing considers:

• Height clearances
• Weight limits
• Road grades
• Large vehicle restrictions

Unlike a standard automotive GPS app, RV LIFE will create an RV Safe route to avoid sending you onto dirt roads like Sheep Bridge Road or steep grade routes not suitable for RV travel.

The Bottom Line for RVers

Beginning June 7, 2026:

• Oversized vehicles will no longer be allowed on the Zion-Mount Carmel Highway between Canyon Junction and the East Entrance.
• Tunnel permits for large vehicles will end.
• RVs that meet the limits may continue to transit the route.
• RVs that exceed the limits can still access Zion through the South Entrance and by using paved alternate highways.

Before you go:

1. Confirm your RV setup’s exact dimensions
2. Choose a compliant route
3. Avoid unpaved shortcuts
4. Check seasonal closures
5. Set up RV Safe routing with RV LIFE

Zion National Park remains accessible to RVers. With the right preparation, you can enjoy the park safely while staying within the new requirements.

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