Holston Valley 2-8-0 "Consolidation" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 12558)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 24, p. 76. Works number was 19610 in October 1901.

This mid-size Consolidation served several narrow-gauge line in several states. Holston Valley was a lumber road connecting Bristol with Big Creek in Tennessee. Soon after its arrival on the HVRR, however, it was sold to Virginia's Farmville & Powhatan, which was just then emerging from receivership under the new name Tidewater & Western.

Locobase 13687 describes the unusual end of the T & W in 1917. At that point, the 4 was sold off to locomotive rebuilder/reseller Southern Iron & Equipment. The SI & E sold the engine to the 29.8-mile long West Virginia Midland, which connected Holly Springs and Webster Springs. The WVM operated until 1931.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID12,558
RailroadHolston Valley
Number in Class1
Road Numbers4
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.50 / 3.51
Engine Wheelbase (ft / m)18 / 5.49
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)58,000 / 26,308
Engine Weight (lbs / kg)66,000 / 29,937
Tender Loaded Weight (lbs / kg)40,000 / 18,144
Total Engine and Tender Weight (lbs / kg)106,000 / 48,081
Tender Water Capacity (gals / ML)1600 / 6.06
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)24 / 12
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x508
Tractive Effort (lbs / kg)18,608 / 8440.46
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.12
Heating Ability
Firebox Area (sq ft / m2)88.70 / 8.24
Grate Area (sq ft / m2)14.20 / 1.32
Evaporative Heating Surface (sq ft / m2)1026 / 95.35
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1026 / 95.35
Evaporative Heating Surface/Cylinder Volume250.82
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2556
Same as above plus superheater percentage2556
Same as above but substitute firebox area for grate area15,966
Power L13988
Power MT606.35

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