The Colorado and Southern Classes E-4 and E-4a are classes of 2-8-2 "Mikado" type steam locomotives that were built in two batches of the series, such as the "O-1" and "O-1a".
History[]
During the days of steam, the Colorado and Southern Railway needed an all-new class of steam locomotives that could haul freight trains at fast speeds, in response to this, the Baldwin Locomotive Works, who was insisting on designing a locomotive class for the Colorado and Southern Railway had went to the drawing board to create an all-new design.
Enter the Colorado and Southern Classes E-4 and E-4a, they were built to haul freight trains at a maximum speed of 65 mph (105 km/h) and that they had two types of series within the class, such as the "E-4" and "E-4a". A total of five examples were built and were numbered 800-804.
All five examples were updated and reclassified as "E-4a", and all five examples were passed onto the Chicago, Burlington and Quincy Railroad from 1933-1947,
Withdrawal of the class had occurred and not a single one of the five were preserved, they were all scrapped.
Stock list[]
| Number(s) | Build date(s) | Operator(s) | Image(s) | Status |
|---|---|---|---|---|
| 800 | 1911 (E-4)
1925 (E-4a) |
Colorado and Southern Railway | 
|
Scrapped |
| 801 | 1911 (E-4)
1925 (E-4a) |
Colorado and Southern Railway | Scrapped | |
| 802 | 1911 (E-4)
1925 (E-4a) |
Colorado and Southern Railway | Scrapped | |
| 803 | 1911 (E-4)
1925 (E-4a) |
Colorado and Southern Railway | 
|
Scrapped |
| 804 | 1911 (E-4)
1925 (E-4a) |
Colorado and Southern Railway | Scrapped |