Union Pacific Unveils America250 Heritage Locomotives

Published: March 20, 2026

Union Pacific has officially unveiled a new series of commemorative locomotives and confirmed plans for a historic coast-to-coast steam excursion as part of the nation’s upcoming 250th anniversary celebration.

In an announcement released just hours ago, the railroad detailed its “America250” heritage locomotive program, along with the long-anticipated eastern leg of the 2026 tour featuring its famed Big Boy steam locomotive.

Union Pacific's rendition of future ET44AC #4547 honoring current U.S. President Donald J. Trump.

A Patriotic Fleet for a Historic Milestone

At the center of Union Pacific’s announcement are three newly highlighted commemorative locomotives, each designed to honor key figures and themes tied to the United States’ history.

Leading the group is No. 1776, the official America250 locomotive, which features a bold American flag motif set against Union Pacific’s signature Armor Yellow paint scheme, along with branding from the national semiquincentennial celebration.

Another unit, No. 1616, pays tribute to President Abraham Lincoln—the founder of Union Pacific—through a historically inspired paint scheme reflecting the Civil War era.

The third locomotive, No. 4547, was developed in partnership with Wabtec and honors current U.S. president Donald J. Trump, featuring large flowing American flags including both the original 13-star design and the modern flag.

Union Pacific noted that these locomotives build upon its tradition of presidential and commemorative units, which previously included No. 4141, dedicated to President George H.W. Bush.

Union Pacific SD70M #1776, the railroad's official "America250" locomotive. It wears the American flag on the carbody - similar to an earlier livery the railroad utilized - and an "America250" logo on the nose.

Celebrating Railroads’ Role in American History

Union Pacific emphasized that the America250 program is designed to highlight the railroad industry’s foundational role in the country’s development.

Since its founding in 1862 under President Lincoln, the railroad has been instrumental in linking the nation through the transcontinental railroad and supporting economic growth across multiple industries.

The Big Boy itself stands as a powerful symbol of that legacy. Built in 1941 by the American Locomotive Company, the massive 4-8-8-4 locomotive was designed to haul heavy wartime freight over the steep grades of the Wasatch Mountains and remains one of the most iconic steam locomotives ever constructed.

Union Pacific SD70M #1616, the "Abraham Lincoln." The locomotive was originally unveiled on April 30, 2025 and is part of the railroad's heritage fleet as well as the "America250" fleet.

A Nationwide Celebration on Rails

Union Pacific’s America250 initiative blends modern freight operations with historical preservation, using both diesel and steam locomotives to tell a broader story of American innovation.

By pairing newly painted heritage locomotives with the Big Boy’s unprecedented coast-to-coast journey, the railroad is positioning railroading at the center of the nation’s semiquincentennial celebration.

For railfans and the general public alike, the 2026 tour promises to be one of the most ambitious and far-reaching railroad heritage events in decades—bringing living history directly to communities across the country.

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