Ogden in Weber County, Utah — The American Mountains (Southwest)

South Pacific Diesel Locomotive SD-45 #7457

South Pacific Diesel Locomotive SD-45 Marker #7457 image. Click for full size.

Photographed by Jeremy Snow, June 21, 2025

1. South Pacific Diesel Locomotive SD-45 Marker #7457

Inscription.
The First of its Kind on the Southern Pacific Line
This locomotive was the first model SD-45 built for the Southern Pacific Railroad. The SP eventually purchased 355 more. The SP had the largest fleet of SD-45 locomotives in the nation. This locomotive was the next logical step in the never ending search for power to pull freight.

#7457 hauled freight from Ogden, Utah over the Donner Summit to the west coast, a climb of nearly 2800 feet (853 meters).

Fun Facts
Built: 1966
Weights, 370,000 pounds (185 tons, 167,829 kg)
Length: 65 feet, 8 inches (20 meters)
Engine: 3600-horsepower General Motors Electro-Motive Division 645E3 V120 diesel
Fuel Capacity: 4000 gallons diesel (15,137 ltr)
Top speed: 65 miles per hour (105 kmph)
Retired: February 7, 2001

This locomotive was originally numbered 8800.

Topics. This historical marker is listed in this topic list: Railroads & Streetcars.

Location. 41° 13.21′ N, 111° 58.782′ W. Marker is in Ogden, Utah, in Weber County. It is on Wall Avenue. Marker is south of the Union Pacific Building. Access is through the Depot building. Touch for map. Marker is at or near this postal address: 813 Wall Avenue, Ogden UT 84401, United States of America. Touch for directions.

Regionally, this marker is in the Wasatch Front

and in Greater Salt Lake.

It is also in the American Mountain West

and in Colorado Plateau.

Globally, it is in North America,

the Rocky Mountains,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Historically, it finds itself in what was once New Spain

and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are

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within walking distance of this marker: Union Pacific Super Turbine Locomotive #26 (a few steps from this marker); Rio Grande #5371 (a few steps from this marker); Union Pacific Steam Locomotive #833 (a few steps from this marker); Union Pacific DDA40X locomotive #6916 (a few steps from this marker); Union Pacific Caboose #25766 (within shouting distance of this marker); U.S. Army Locomotive #1216 44-ton Switch Engine (within shouting distance of this marker); Union Pacific Railway Post Office Car (within shouting distance of this marker); Union Pacific Wrecking Derrick #X-250 (within shouting distance of this marker). Touch for a list and map of all markers in Ogden.

South Pacific Diesel Locomotive SD-45 #7457 Marker image. Click for full size.

Photographed by Jeremy Snow, June 21, 2025

2. South Pacific Diesel Locomotive SD-45 #7457 Marker

South Pacific Diesel Locomotive SD-45 #7457 Engine image. Click for full size.

Photographed by Jeremy Snow, June 21, 2025

3. South Pacific Diesel Locomotive SD-45 #7457 Engine

Credits. This page was last revised on July 7, 2025. It was originally submitted on July 7, 2025, by Jeremy Snow of Cedar City, Utah. This page has been viewed 118 times since then and 40 times this year. Photos: 1, 2, 3. submitted on July 7, 2025, by Jeremy Snow of Cedar City, Utah. • Andrew Ruppenstein was the editor who published this page.