Texas and Pacific 610

Specifications
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)
Length:;
• Over couplers	99 ft 1 in (30.20 m)
Width	10 ft 9+1⁄2 in (3.29 m)
Height	15 ft 5+3⁄4 in (4.72 m)
Loco weight	448,000 lb (203,000 kilograms; 203 metric tons)
Tender weight	125,500 lb (56,900 kilograms; 56.9 metric tons)
Total weight	573,500 lb (260,100 kilograms; 260.1 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)
Firebox:
• Grate area	100 sq ft (9.3 m2)
Boiler pressure	255 psi (1,760 kPa)
Feedwater heater	Elesco K-50A
Cylinders	Two
Cylinder size	29 in × 32 in (737 mm × 813 mm)
Valve gear	Baker

Type and origin
Type and origin
	References:
Power type	Steam
Designer	William E. Woodard
Builder	Lima Locomotive Works
Order number	1101
Serial number	7237
Build date	June 1927
Rebuild date	1975–1976

Texas and Pacific 610
Texas and Pacific 610
	T&P No. 610 on static display at the Texas State Railroad
Power type
Type and origin
	References:
Power type	Steam
Designer	William E. Woodard
Builder	Lima Locomotive Works
Order number	1101
Serial number	7237
Build date	June 1927
Rebuild date	1975–1976
Configuration:;
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)
Length:;
• Over couplers	99 ft 1 in (30.20 m)
Width	10 ft 9+1⁄2 in (3.29 m)
Height	15 ft 5+3⁄4 in (4.72 m)
Loco weight	448,000 lb (203,000 kilograms; 203 metric tons)
Tender weight	125,500 lb (56,900 kilograms; 56.9 metric tons)
Total weight	573,500 lb (260,100 kilograms; 260.1 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)
Firebox:
• Grate area	100 sq ft (9.3 m2)
Boiler pressure	255 psi (1,760 kPa)
Feedwater heater	Elesco K-50A
Cylinders	Two
Cylinder size	29 in × 32 in (737 mm × 813 mm)
Valve gear	Baker
Tractive effort
Performance figures
Tractive effort	Loco: 84,600 lbf (376.3 kN),; Booster: 13,300 lbf (59.2 kN), Loco W/ Booster: 97,900 lbf (435.5 kN)
Factor of adh.	3.24
Operators
Career
Operators	Texas and Pacific Railway; 610 Foundation; Southern Railway
Class	I-1A; I-1AR (rebuilt)
Number in class	1st of 15
Numbers	T&P 610; AFT 610; SOU 610;
Retired	1950 (revenue service); 1981 (excursion service)
Restored	1976
Current owner	Texas State Railroad
Disposition	On static display
	Texas & Pacific Steam Locomotive No. 610
	U.S. National Register of Historic Places
	Texas & Pacific Steam Locomotive No. 610 Texas & Pacific Steam Locomotive No. 610
Coordinates	31°44′28″N 95°35′16″W
Area	1 acre (0.40 ha)
NRHP reference No.	77001477
Added to NRHP	March 25, 1977

Texas and Pacific 610 is a preserved class I-1AR 2-10-4 "Texas" type steam locomotive that was originally operated by the Texas and Pacific Railway (T&P). No. 610 and it's class were based on Lima Locomotive Works' prototype "Super-power" 2-8-4, and the T&P rostered them to to pull fast and heavy freight trains.

No. 610 last ran for the T&P in 1950, before it was put on static display at the Fort Worth Fat Stock Show in Fort Worth, Texas. In the late 1960s, No. 610 was at risk of being scrapped before the 610 Foundation, led by Dave Pearson, made a solemn promise to maintain the locomotive. In 1975, work began to restore No. 610 to operating condition, and the following year, it pulled the Texas portion of the American Freedom Train.

From 1977 to 1980, No. 610 was leased by the Southern Railway to pull excursion trains for their steam program. In 1981, No. 610 returned to Fort Worth under its own power, and the following year, it moved to the Texas State Railroad in Palestine, Texas. As of 2024, No. 610 remains in storage under Texas State Railroad ownership, and it is towed outdoors for display during occasional events.

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