Texas and Pacific 610, Steam locomotive at Texas State Railroad, United States

Texas and Pacific 610 is a 2-10-4 "Texas" type steam locomotive built by Lima Locomotive Works in June 1927, the only surviving I-1AR of the T&P. It has ten driving wheels of 63-inch diameter, a 255 psi boiler and Baker valve gear, and was rebuilt in 1938 with Baldwin disc driving wheels and lightweight nickel-steel rods. It is stored under Texas State Railroad ownership and towed outdoors for display at occasional events.

Built in 1927 by Lima Locomotive Works, this engine hauled freight trains across Texas for more than two decades. It was retired in 1950 as railroads transitioned to newer technology and diesel power.

The locomotive carries the nickname Will Rogers, and its 2-10-4 wheel arrangement became known as the "Texas" type because the T&P was the first railroad to order it. Visitors can see the ornate smokestack flange that distinguished the I-1A class from earlier I-1s.

This locomotive is on display at a museum location and can be viewed during special events and railroad celebrations held throughout the year. Check ahead to confirm visiting hours, as the engine may not always be accessible depending on maintenance or private events.

No. 610 was the first of the fifteen I-1A locomotives Lima delivered in summer 1927, costing $106,656.41. Its class carried the 2-10-4 wheel arrangement that became known as the "Texas" type, named for the Texas and Pacific. In August 1938 the Fort Worth shops fitted Baldwin disc driving wheels and lightweight nickel-steel rods, lifting its 45 mph restriction.