What Is Route 66 and Why Does It Matter as a National Historic Trail?

Route 66 is one of America's most iconic highways, stretching roughly 2,400 miles from Chicago, Illinois, to Santa Monica, California. But beyond its reputation as a symbol of American road culture, Route 66 holds official status as a National Historic Trail—a designation that shapes how the road is preserved, marked, and experienced by travelers and communities along its path. Understanding what Route 66 actually is, both historically and in its current form, helps you plan a visit or understand its role in American heritage preservation.

The Historical Route 66: What It Was and When It Mattered

Route 66 was established in 1926 as a U.S. federal highway, one of the first numbered routes in the American interstate system. It connected major cities and towns across eight states: Illinois, Missouri, Kansas, Oklahoma, Texas, New Mexico, Arizona, and California. For decades, it served as a primary east-west corridor for commerce, migration, and leisure travel—especially during the Great Depression and post-World War II era, when families drove west seeking economic opportunity or a fresh start.

The road became deeply woven into American culture. It connected dusty farm towns to big cities, supported thousands of small businesses (diners, gas stations, motels, and roadside attractions), and became the subject of songs, films, and literature. Route 66 represented possibility and freedom on the open road—themes that still resonate today.

However, Route 66's practical importance declined sharply after 1970, when the Interstate Highway System was completed. Interstates were faster and more direct; they bypassed small towns entirely. Many Route 66 communities lost traffic, businesses closed, and long stretches of the original highway fell into disrepair or were abandoned altogether.

Route 66 Today: A National Historic Trail, Not an Active Highway

Here's the critical distinction: Route 66 is no longer an official U.S. federal highway. It was officially removed from the U.S. Highway System in 1985. What remains is a mix of original pavement, state roads, county roads, and private roads that roughly follow the original path—some sections have been rebuilt or realigned, and some original segments no longer exist.

In 1999, Route 66 received National Historic Trail designation under the National Trails System Act. This recognition does not make Route 66 a maintained, federally funded highway. Instead, it acknowledges the route's historical, cultural, and economic significance to American heritage. The designation:

• Provides official recognition of the trail's historical importance
• Allows for signage and wayfinding to help travelers identify and navigate historic segments
• Supports preservation efforts by communities and nonprofits along the route
• Enables funding opportunities for restoration projects and heritage tourism
• Creates a framework for coordinating preservation across state lines

The National Park Service serves as the administrative body overseeing the trail designation, but actual maintenance and conditions of roadways vary dramatically by location and jurisdiction.

The Practical Experience: What Traveling Route 66 Looks Like

If you decide to travel Route 66 today, understand what you're actually doing:

You're driving a historical route, not a maintained scenic byway. Some sections feature beautiful, well-preserved original pavement and charming restored businesses. Other stretches are rough, unmarked, or pass through economically struggling towns with limited services. Some original segments are completely inaccessible to modern vehicles.

The quality and character of your experience depends heavily on which state you're in and how actively that region has invested in Route 66 heritage tourism:

• Arizona has invested significantly in Route 66 tourism, with well-marked segments, restored attractions, and active community support.
• New Mexico and Texas have pockets of active preservation, though conditions vary considerably.
• Illinois, Missouri, and Oklahoma have some well-maintained sections alongside deteriorating stretches.
• Kansas has limited existing Route 66 infrastructure and fewer tourist amenities.
• California has mixed conditions; some sections near Los Angeles are well-developed, while rural stretches may be harder to navigate.

There is no single, unified Route 66 experience. You may drive portions of interstate highways, state routes, county roads, and local streets that collectively trace the historic path. Modern GPS and Route 66 travel guides help, but navigation requires planning.

Key Factors That Shape Your Route 66 Experience

The Distinction Between "Historic Route" and "Maintained Byway"

It's important to understand that National Historic Trail status is not the same as a scenic byway or heritage highway. A scenic byway typically offers maintained roadways, consistent signage, and designated rest areas. Route 66's designation recognizes its history, but the physical road is maintained by whoever owns or manages that particular segment—state transportation departments, county governments, or private landowners.

This means:

• Maintenance standards vary wildly. One stretch might be pristine asphalt; the next might be crumbling concrete.
• Services are not guaranteed. Gas stations, restaurants, and motels that once lined Route 66 have largely closed or relocated. Those still operating may have limited hours or outdated facilities.
• Wayfinding is inconsistent. While many sections have Historic Route 66 markers and signage, you cannot rely on consistent signage the entire way. Apps and detailed guides are necessary.
• Road safety depends on local conditions. Some sections are perfectly safe modern roads; others are narrow, winding, or poorly lit.

Why Route 66 Still Matters as a National Historic Trail

Despite these challenges, the National Historic Trail designation has helped preserve Route 66's cultural and economic significance. Communities that invested in restoration and heritage tourism—Seligman, Arizona; Williams, Arizona; Santa Fe, New Mexico; and others—have revitalized local economies by attracting Route 66 tourists who come specifically to experience the road's history.

The designation also:

• Protects the narrative. It formally acknowledges Route 66's role in American migration, commerce, and culture
• Supports nonprofit preservation groups working to maintain historic buildings and segments
• Encourages adaptive reuse of old motels, gas stations, and roadside attractions
• Creates opportunities for rural communities to participate in heritage tourism

What You Need to Know Before Planning a Route 66 Trip

If you're considering a Route 66 journey, the National Historic Trail designation means you're pursuing a cultural and historical experience—not a scenic drive with consistent amenities or infrastructure. Success depends on:

• Detailed research into which segments you want to drive and their current conditions
• Flexible timing and route planning, as not all original segments are drivable
• Checking local resources for current business hours, closures, and road conditions
• Understanding regional variation. Some states have invested heavily in Route 66 heritage; others have not
• Realistic expectations about pace. Route 66 driving is deliberately slow; it's about the journey, not arrival
• Advanced planning for services, especially in rural stretches where gas stations and lodging may be sparse

Route 66's National Historic Trail status preserves its place in American history and creates a framework for ongoing preservation—but it does not create a unified, maintained, or guaranteed driving experience. What remains is a collection of stories, buildings, and road segments that communities, organizations, and individuals work to keep alive.