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A Guide to the Most Famous Bridges in Montana

Mark Barnett
Last Updated: March 30th, 2025

Montana is home to some incredible bridges, each with a unique story to tell.

Whether they’re old truss bridges that have stood the test of time or modern structures designed to handle today’s traffic, these crossings connect people, history, and landscapes in a way that’s easy to behold.

From the Missouri River to the Yellowstone, these bridges have played a key role in Montana’s development, making travel possible across rugged terrain and vast distances.

In this guide, we’ll take a closer look at some of Montana’s most famous bridges, highlighting their history, architecture, and the best ways to experience them.

1. Fort Benton Bridge

Fort Benton Bridge

At a Glance:

Standing proudly over the Missouri River since 1888, Fort Benton Bridge is a landmark of Montana’s past. Originally built to connect travelers and traders moving west, it played a vital role in the development of the region.

Over time, as transportation evolved, the bridge was retired from vehicle use, but it remains a beloved pedestrian walkway. In 1980, it was added to the National Register of Historic Places, cementing its status as a piece of living history.

Today, visitors can stroll across its sturdy trusses, soaking in views of the river and the historic town of Fort Benton. The bridge is also recognized nationally, ranked #80 on America’s Top 100 Bridges for Scenic Commutes.

Whether you’re here for history, photography, or simply a quiet moment by the water, this bridge offers the perfect stop on any Montana road trip.

2. Bell Street Bridge

Bell Street Bridge

At a Glance:

Stretching 1,352 feet across the Yellowstone River, Bell Street Bridge has been a fixture in Glendive since 1926.

Originally designed for motor traffic, this Warren through-truss bridge served as a key crossing for decades before being converted into a pedestrian and bicycle bridge.

Now, it offers a peaceful spot for locals and visitors to take in views of the river, watch wildlife, or enjoy a quiet walk. The bridge’s steel framework stands as a testament to early 20th-century engineering, blending function with beauty.

As one of Montana’s longest truss bridges, it remains an important piece of the state’s transportation history.

Whether you’re looking for a scenic stroll or a great place for sunset photography, Bell Street Bridge provides a unique way to experience the Yellowstone River up close.

3. Big Horn River Bridge

Big Horn River Bridge

At a Glance:

Spanning 624 feet over the Big Horn River, this Pennsylvania through-truss bridge has stood strong since its construction between 1931 and 1933.

Built during a time when Montana’s roadways were expanding, it was designed to endure seasonal flooding, a common challenge in the area. The steel riveted framework reflects the sturdy, no-nonsense engineering of the early 20th century, ensuring safe passage for decades.

In 2010, the bridge was officially added to the National Register of Historic Places, recognizing its historical and architectural significance. Though vehicle traffic still crosses this structure, it’s also a great place to stop and admire the river’s steady flow below.

Whether you’re a history buff or just passing through, the Big Horn River Bridge is a quiet but important reminder of Montana’s long-standing commitment to connecting its communities.

4. Carbella Bridge

Carbella Bridge

At a Glance:

  • Location: Park County, north of Gardiner
  • Built: 1918 (original), 2024 (replacement)
  • Type: Historic bridge (original), modern two-lane bridge (replacement)