The Valley Road (or, as it was better known, the Boll Weevil) was a Texas road that began construction in 1902 between Hillsboro (about 45 miles south of Fort Worth) southeast to Mexia and northwest from Hillsboro to Cleburne. This 77-mile line wasn't as profitable as hoped and its original investors sold out to the Colorado & Southern in 1905; the C&S sold half of its interest to the Rock Island. Suitably juiced with more capital, the T & BV built 224 more miles in two years; the main line then stretched from Waxahachie southeast to Houston. The T&BV also had trackage rights from Houston to Galveston on the C&S's Gulf, Colorado and Santa Fe.
One benefit was joint orders for locomotives from Baldwin. This quintet was produced at the same time as the C & S's identical class shown in Locobased 14104. They were a good size and weight and had drivers suitable for most passenger service on the relatively unchallenging profile.
Never especially profitable, the T&BV entered into receivership in 1916. It was reorganized in 1930, taking the names of its two biggest sponsors in the new entity: Burlington Rock Island.
48-49 were scrapped in 1931. 51 followed in 1936, 50 in 1937, and 47 in 1939.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Trinity & Brazos Valley|
|Number in Class||5|
|Builder||Burnham, Williams & Co|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.57|
|Overall Wheelbase (engine & tender)|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||138500 lbs|
|Engine Weight||179500 lbs|
|Tender Light Weight||142000 lbs|
|Total Engine and Tender Weight||321500 lbs|
|Tender Water Capacity||8000 gals|
|Tender Fuel Capacity (oil/coal)||10 tons|
|Minimum weight of rail (calculated)||77 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||200 psi|
|Cylinders (dia x stroke)||21" x 28"|
|Tractive Effort||30423 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.55|
|Firebox Area||194.50 sq. ft|
|Grate Area||32.60 sq. ft|
|Evaporative Heating Surface||2465 sq. ft|
|Combined Heating Surface||2465 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||219.61|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||6520|
|Same as above plus superheater percentage||6520|
|Same as above but substitute firebox area for grate area||38900|