Milwaukee Road class L2

Milwaukee Road class L2
Baldwin Loocmotive Works’ photograph of L2-a No. 8200, later 500, construction no. 53596, Baldwin class 12-46-¼-E, 594; built August 1920, retired March 1953.
Type and origin Power type Steam Builder Milwaukee Road (40) American Locomotive Company (140) Baldwin Locomotive Works (200) Build date L2: 1912–1914 L2-a: 1920 L2-b: 1922–1923 Total produced 380
Specifications Configuration: ​  • Whyte 2-8-2  • UIC 1′D1′ h2 Gauge 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 63 in (1,600 mm) Adhesive weight 216,000–220,000 lb (98–100 tonnes) Loco weight 275,000–292,770 lb (124.74–132.80 tonnes) Fuel type Coal Firebox: ​  • Grate area 49 sq ft (4.6 m2) Boiler pressure 200 lbf/in2 (1.38 MPa) Heating surface 2,925–3,050 sq ft (271.7–283.4 m2) Superheater: ​  • Heating area 640–685 sq ft (59.5–63.6 m2) Cylinders Two Cylinder size 26 in × 30 in (660 mm × 762 mm) Valve gear L2, L2-b: Walschaerts L2-a: Baker Loco brake Air Train brakes Air
Performance figures Tractive effort 54,720 lbf (243.4 kN)
Career Operators Milwaukee Road Class L2, L2-a, and L2-b Number in class L2: 180 L2-a: 100 L2-b: 100 Numbers 8000–8179, 8200–8399 renumbered 400–738 in 1938 Retired 1935–1956 Disposition All scrapped

The Milwaukee Road class L2 were 2-8-2 or "Mikado"-type steam locomotives built by or for the Chicago, Milwaukee, St. Paul and Pacific Railroad (“The Milwaukee Road”) in the period 1912–1923.

Construction history

Cleaning an engine near the Milwaukee Road roundhouse, Bensenville, Illinois. Milwaukee Road 470 was class L2-b 2-8-2 built by Baldwin in 1923

There were three sub-classes of the class L2: the L2 proper comprised 40 locomotives, built by Milwaukee Road’s Milwaukee Shops in 1912–13, 115 by Alco’s Brooks Works in 1912, and 25 by Alco’s Schenectady Works in 1914. They were followed by 100 class L2-a built by Baldwin Locomotive Works in 1920, and 100 class L2-b in 1922, also built by Baldwin.

Numbering

L2

When originally built, the Milwaukee Shops locomotives had been allocated 1800–1839, however only the first seven carried these numbered before the allocation became 8000–8039. Similarly, only the first 50 Brooks locomotives received their 1840–1889 numbers, before their allocation was changed to 8040–8154. The Schenectady engines were numbered 8155–8179.

Sixty-nine L2 locomotives received mechanical stokers and were reclassified as class L2-r. At the Milwaukee Road’s 1938 renumbering, the remaining 62 L2-r locomotives were renumbered 600–661, with the remaining 77 non-stoker fitted L2 locomotives receiving numbers 662–738.

L2-a

The 100 L2-a locomotives were built by the Baldwin Locomotive Works as 8200–8299, and became 500–599 in 1938.

L2-b

The 100 L2-b locomotives were built by the Baldwin Locomotive Works as 8300–8399, and became 400–499 in 1938.

Notes

Sadly, none of the mikado's survived to preservation

References

• Edson, William D. (Spring 1977). "Milwaukee Road All Time Steam, Diesel and Electric Roster". Railroad History (136). Boston, Massachusetts: Railway and Locomotive Historical Society Inc.: 93–100.
• Smith, J. D. H. "Milwaukee Road steam locomotives". Retrieved 2008-10-06.