Chicago, Milwaukee, St. Paul & Pacific Mikados

The Milwaukee Shops of the Chicago, Milwaukee, St. Paul & Pacific Railroad built the first "Mikado" type locomotives used on the railroad. The shops built 20 of this type in 1909. These locomotives were designated as Class L-1 and numbered 8500- 8519. In 1912 and 1913, the shops built 40 more 2-8-2s. This group was designated as Class L-2 and assigned numbers 8000-8039. They were similar to the Class L-1 "Mikados" except the cylinder diameter was 2 inches larger, which raised the Tractive effort to 54,725 pounds. During 1912 the CMStP&P had the American Locomotive Company build 115 of the Class L-2 locomotives and assigned them road numbers 8040-8154 and in 1914, ordered another 25 from ALCO, which were delivered the same year and given road numbers 8155-8179.

In 1918 and 1919, the USRA assigned 100 USRA "Mikado-Heavy" type locomotives to the CMStP&P. This was in fact 43% of this type of locomotive assigned by the USRA. These locomotives were assigned road numbers 8600-8699 and were designated as Class L-3.

The USRA "Mikado-Heavy" Class L-3 locomotives did well on the CMStP&P, but after the War, 200 more of the Class L-2, 2-8-2s were ordered. Baldwin delivered 100 between 1920 and 1921 numbered 8200-8299 and delivered another 100 numbered 8300-8399 between 1922 and 1923.

There are no surviving Milwaukee Road 2-8-2 "Mikado" type locomotives.

Class	Qty.	Road Numbers	Later Numbers	Year Built	Builder	Notes
L-1	20	8500 - 8519	750 - 769	1909	CMStP&P
L-2	40	8000 - 8039	600 - 782	1912 - 1913	CMStP&P
L-2	115	8040 - 8154	612 - 726	1912	ALCO
L-2	25	8155 - 8179	661 - 738	1914	ALCO
L-3	100	8600 - 8699	300 - 399	1918 - 1919	ALCO	USRA allocated "Mikado-Heavy" locomotives
L-2	100	8200 - 8299	500 - 598	1920 - 1921	Baldwin
L-2	100	8300 - 8399	400 - 499	1922 - 1923	Baldwin

Specifications
Class	L-1	L-2	L-3
Wheel Arrangement:	2-8-2	2-8-2	2-8-2
Length:
Drivers:	63" dia	63" dia	63" dia
Weight on Drivers:	182,000 lbs.		240,000 lbs.
Total Locomotive Weight:	260,000 lbs.		240,000 lbs.
Locomotive & Tender Weight:			515,000 lbs.
Grate Area:	48.8 sq. ft.	48.8 sq. ft.	70.8 sq. ft
Cylinders (dia. x stroke):	(2) 24" x 30"	(2) 26" x 30"	(2) 27" x 32"
Boiler Pressure:	200 psi	200 psi	190 psi
Tractive Effort:	46,630 lbs.	54,725 lbs.	59,800 lbs.
Tender Capacity:
Water:			16,000 gals.
Coal:			18 tons

Chicago, Milwaukee, St. Paul & Pacific Mikados

Photos

Reference