Chicago, Rock Island & Pacific Mikados

In 1911 the Chicago, Rock Island & Pacific Railway needed higher speed so it designed a new 2-8-2 Locomotive. The Baldwin Locomotive Works delivered 40 (road numbers 2500-2539) of the "Mikados" in 1912 and the American Locomotive Company delivered another 10 (road numbers 2540-2549) in the same year. They were designated as Class K-60.

Another group of 25 Class K-60 "Mikados" was delivered by Baldwin in 1913. This group was assigned road numbers 2550-2574. The specifications were identical to the previous Class K-60 Baldwin-built locomotives. A final group of Class K-60 2-8-2s came from ALCO in 1918. These 20 locomotives were similar to the 1913 "Mikados" and were assigned road numbers 2575-2590.

During World War I the USRA allocated twenty USRA "Mikado-Light" locomotives to the CRI&P. Baldwin built nine of them (road numbers 2300-2308) and ALCO built the other eleven (road numbers 2309-2319). These locomotives were designated as Class K-55 on the CRI&P.

In 1923, Baldwin and ALCO each delivered 24 more of the Class K-60 "Mikados. The Baldwin-built locomotives were given road numbers 2591-2618 and the ALCO group was assigned road numbers 2619-2642.

Later in 1923, another 36 ALCO-built 2-8-2s were Added to the roster. These locomotives were similar to the Class K-60 but had a 210 psi boiler pressure which increased its Tractive effort to 66,640 pounds. They were designated as Class K-60b and were assigned road numbers 2643-2678.

In 1926, the CRI&P bought another 10 "Mikados" from ALCO. These locomotives were similar to the Class K-60b and were designated as Class K-64b and assigned road numbers 2679-2688.

A final group of 2-8-2s were delivered by ALCO in 1927 and were similar to the Class K-64b. They were classified as Class K-67K and were given road numbers 2689-2731.

There are no surviving CRI&P 2-8-2 "Mikado" type locomotives.

Class	Qty.	Road Numbers	Year Built	Builder	Notes
K-60	40	2500 - 2539	1912	Baldwin
	10	2540 - 2549	1912	ALCO
	25	2550 - 2574	1913	Baldwin
	20	2575 - 2594	1918	ALCO
K-55	9	2300 - 2308	1919	Baldwin	USRA allocated "Mikado-Light" locomotives
K-55	11	2309 - 2319	1919	ALCO	USRA allocated "Mikado-Light" locomotives
K-60	24	2595 - 2618	1923	Baldwin	Four of these locomotives were sold to the Soo Line in 1941
K-60	24	2619 - 2642	1923	ALCO
K-60b	36	2643 - 2678	1923	ALCO
K-64b	10	2679 - 2688	1926	ALCO
K-67b	25	2689 - 2713	1927	ALCO

Specifications
Class	K-55	K-60	K-60	K-60	K-60	K-60	K-60	K-60b	K-64b	K-67b
Road Numbers:	2300 - 2319	2500 - 2539	2540 - 2549	2550 - 2574	2575 - 2890	2591 - 2618	2619 - 2642	2643 - 2678	2679 - 2688	2689 - 2713
Wheel Arrangement:	2-8-2	2-8-2	2-8-2	2-8-2	2-8-2	2-8-2	2-8-2	2-8-2	2-8-2	2-8-2
Length:	81'-11 3/8"	81'-1 3/8"	81'-1 3/8"	81'-1 3/8"	83'-5 5/8"	83'-5 5/8"	83'-6 3/8"	83'-6 3/8"	84'-0 3/8"	84'-0 3/8"
Drivers:	63" dia	63" dia	63" dia	63" dia	63" dia	63" dia	63" dia	63" dia	63" dia	63" dia
Weight on Drivers:	216,950 lbs.	243,200 lbs.	238,000 lbs.	238,200 lbs.	245,555 lbs.	245,555 lbs.	249,045 lbs.		265,000 lbs.	263,000 lbs.
Total Locomotive Weight:	284,300 lbs.	318,850 lbs.	320,000 lbs.	319,300 lbs.	332,230 lbs.	332,230 lbs.	336,230 lbs.		360,000 lbs.	355,000 lbs.
Locomotive & Tender Weight:	484,900 lbs.	504,850 lbs.	506,000 lbs.	505,300 lbs.	524,830 lbs.	524,830 lbs.	528,830 lbs.		564,800 lbs.	559,800 lbs.
Grate Area:	66.7 sq. ft.	63.0 sq. ft.	63.0 sq. ft	63.0 sq. ft	63.0 sq. ft	63.0 sq. ft	63.0 sq. ft	63.0 sq. ft	63.0 sq. ft	63.0 sq. ft
Cylinders (dia. x stroke):	(2) 26" x 30"	(2) 28" x 30"	(2) 28" x 30"	(2) 28" x 30"	(2) 28" x 30"	(2) 28" x 30"	(2) 28" x 30"	(2) 28" x 30"	(2) 28" x 30"	(2) 28" x 30"
Boiler Pressure:	200 psi	190 psi	190 psi	190 psi	200 psi	200 psi	200 psi	210 psi	210 psi	210 psi
Tractive Effort:	54,724 lbs.	60,293 lbs.	60,293 lbs.	60,293 lbs.	63,467 lbs.	63,467 lbs.	63,467 lbs.	66,640 lbs.	66,640 lbs.	66,640 lbs.
Tender Capacity:
Water:	10,000 gals.	10,000 gals.	10,000 gals.	10,000 gals.	10,000 gals.	10,000 gals.	10,000 gals.	10,000 gals.	10,000 gals.	10,000 gals.
Oil in gals./ Coal in tons:	5,000 gals	3,200 gals.	3,200 gals.	3,200 gals.	16 tons	16 tons	16 tons	16 tons	16 tons	16 tons

Chicago, Rock Island & Pacific Mikados

Photos

Reference