D&RGW K-36

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Denver & Rio Grande Western
K-36 class
Scurve.jpg
Type and origin
References:[1]
Power type Steam
Builder Baldwin Locomotive Works
Model 12-34 1/4 E
Build date 1925
Total produced 10
Specifications
Configuration:
 • Whyte 2-8-2
 • UIC 1′D1′ h2
Gauge 3 ft (914 mm)
Driver dia. 44 in (1,118 mm)
Loco weight 187,100 lb (84.9 t)
Fuel type Coal
Boiler pressure 195 lbf/in2 (1.34 MPa)
Cylinders Two
Cylinder size 20 in × 24 in (508 mm × 610 mm)
Valve gear Walschaerts
Loco brake S-6 (part of 6-ET schedule equipment)
Train brakes 6-ET automatic air brakes on all. 480, 481, 482, 486 also have straight air equipment.
All delivered with G-6 equipment new.
Performance figures
Tractive effort 36,200 lbf (161.03 kN)
Career
Operators
Numbers 480–489
Locale Colorado and New Mexico
Disposition One (485) scrapped,remainder operational or preserved

The Denver and Rio Grande Western K-36 class are ten 3 ft (914 mm) narrow gauge, Mikado type, 2-8-2 steam locomotives built for the Denver and Rio Grande Western Railroad (DRGW) by Baldwin Locomotive Works. They were shipped to the Rio Grande in 1925, and were first used along the Monarch Branch and Marshall Pass, but were later sent to the Third Division out of Alamosa. Of the original ten, four are owned by the Durango and Silverton Narrow Gauge Railroad (D&SNG) and five by the Cumbres and Toltec Scenic Railroad (C&TS). Number 485 fell into the turntable pit at Salida and was scrapped in Pueblo in 1955, with many parts being saved.

The locomotives are of outside-frame design, with the driving wheels placed between the two chassis frames which support the boiler, but with the cylinders, driving rods, counterweights and valve gear on the outside. This general arrangement is shared with the earlier K-27, K-28 and later K-37 Mikado engines.

The Name[edit]

The locomotives' name of K-36 comes from two different sources. The K in the name comes from the locomotives' wheel arrangement (Mikado), and the 36 stands for 36,200 pounds of tractive effort.

In Service[edit]

The K-36s were used primarily as freight locomotives out of Alamosa to Durango, and to Farmington, New Mexico, as well as out of Salida to Gunnison (over Marshall Pass) until 1955 and to Monarch on the Monarch Branch until 1956. They were built with special valves to allow brake control between locomotives while double-heading, and were commonly found between Alamosa and Chama, New Mexico. They were heavily used during the pipe boom in Farmington, and hauled long freight trains between Alamosa and Farmington.

In 1937, 3 K-36s, 482, 483, and 489, were equipped with steam heat and signal lines to haul passenger trains like the Shavano and the San Juan Express. Eventually in 1945, 484, 485, and 488, were also equipped, too.

Roster[2][3][edit]

Number Photo Builder's
Number
Current
Owner
Notes
480 D&SNG 482&480 2006.jpg 58558 D&SNG Retired 1970
Went to Durango and Silverton Narrow Gauge Railroad in March 1981. Operational
481 Colorado - Silverton 02.jpg 58559 D&SNG Went to Durango and Silverton Narrow Gauge Railroad in March 1981 and was the first K-36 run to Silverton. Operational
482 D&SNG 482 2006.jpg 58541 D&SNG Retired 1962
Went to Cumbres and Toltec Scenic Railroad in 1970
Traded to Durango and Silverton Narrow Gauge Railroad in 1991. Operational
483 483 heading to Farmington - Flickr - drewj1946.jpg 58584 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970, Almost swapped out with K-28 class 478 in 2015 from the Durango and Silverton Narrow Gauge Railroad

483 also hauled the last scheduled passenger train on the Denver and Rio Grande Western Railroad on May 29, 1965. It was a fan trip from Alamosa, Colorado to Durango, Colorado. Stored in Chama, NM.

484 Cumbres & Toltec train.jpg 58585 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970. Operational
485 D&RGW Durango yard 1940.jpg 58586 n/a Crashed in the turn table pit in Salida. Due to severe injuries, 485 couldn't be saved, and was scrapped on January 24, 1955. Many parts were salvaged and used on other locomotives.
486 D&SNG 486 2008.jpg 58587 D&SNG Retired 1962
Went to Royal Gorge Park for display in December 1967
Went to Durango and Silverton Narrow Gauge Railroad in 1999. Operational
487 LCA CumbresToltec.jpg 58588 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970. Operational
488 Scurve.jpg 58589 C&TS Went to Cumbres and Toltec Scenic Railroad in 1970. Operational
489 Chama K-36-Steam-locomotive-489 2012-10-24.JPG 58590 C&TS Retired 1962
Went to Cumbres and Toltec Scenic Railroad in 1970. Operational K-36 489

References[edit]

  1. ^ "Denver & Rio Grande Western Mikados". Steam Locomotive dot com. Retrieved 12 February 2010. 
  2. ^ "Denver & Rio Grande Western Roster". Rio Grande Modeling & Historical Society. Archived from the original on 22 November 2008. Retrieved 12 February 2010. 
  3. ^ "Durango & Silverton Steam". DRGW.net. Retrieved 12 February 2010.