Texas and Pacific 610

Texas and Pacific 610 is a 2-10-4 "Texas" type steam locomotive that was originally operated by the Texas and Pacific Railway (T&P). Built in 1927 by the Lima Locomotive Works (LLW), 610 was a major work-horse for the Texas & Pacific. By the early 1950s, however, the T&P had scrapped all of their "Texas" type locomotives, save 610 and 638, with 610 being donated to the Fort Worth Fat Stock Show in 1951, and the locomotive sat on display at the Will Rogers Memorial Center.

Texas and Pacific 610
Type and origin Power type Steam Builder Lima Locomotive Works Order number 1101 Serial number 7237 Build date June 1927
Specifications Configuration: ​  • Whyte 2-10-4  • UIC 1′E2′ h2 Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge Driver dia. 63 in (1,600 mm) Adhesive weight 300,000 lb (140,000 kilograms; 140 metric tons) Loco weight 452,000 lb (205,000 kilograms; 205 metric tons) Tender weight 277,166 lb (125,720 kilograms; 125.720 metric tons) Fuel type Oil Fuel capacity 5,000 US gal (19,000 l; 4,200 imp gal) Water cap 14,000 US gal (53,000 l; 12,000 imp gal) Boiler pressure 255 lbf/in2 (1.76 MPa) Cylinders Two Cylinder size 29 in × 32 in (737 mm × 813 mm) Valve gear Baker
Performance figures Tractive effort Loco: 92,590 lbf (411.9 kN), Booster: 13,300 lbf (59.2 kN), Loco W/ Booster: 105,890 lbf (471.0 kN) Factor of adh. 3.27
Career Operators Texas and Pacific Railway Southern Railway (1977–1981) Class I-1a Number in class 1st of 15 Numbers T&P 610 AFT 610 SOU 610 Retired 1951 (revenue service) 1981 (excursion service) Restored 1976 Current owner Texas State Railroad Disposition On static display at the Texas State Railroad History Museum, 789 PR 70, Palestine, Texas Texas & Pacific Steam Locomotive No. 610 U.S. National Register of Historic Places Texas & Pacific Steam Locomotive No. 610 Show map of Texas Texas & Pacific Steam Locomotive No. 610 Show map of the United States Coordinates 31°44′28″N 95°35′16″W Area 1 acre (0.40 ha) NRHP reference No. 77001477[1] Added to NRHP March 25, 1977

In 1976, the locomotive was restored so it could be used to haul the American Freedom Train for the portion of its tour in Texas. After pulling the American Freedom Train, the locomotive was leased by the Southern Railway in 1977 for use in its steam excursion program. The Southern Railway re-lettered the locomotive as "Southern 610", and operated it for four years, before returning it to Texas in 1982.

From 1982 it was on display by the Trinity Valley Railfans on GSA property located on James Avenue in Fort Worth. Due to GSA downsizing the property and need to hand off the portion the display was at to the City of Fort Worth, Texas, the 610 was moved, locomotive and building to the Texas State Railroad.

The locomotive is now on static display at the Texas State Railroad in Palestine, Texas; it is the only surviving example of a T&P "Texas" type locomotive; also the largest non-articulated steam locomotive preserved built by the Lima Locomotive Works. Sister engine #638 also survived for a brief time, but was eventually scrapped due to vandalism.

The locomotive is listed on the National Register of Historic Places.