Union Pacific Steam Locomotives, 1915-1962

Part 8, UP 2200 to UP 2499

This page was last updated on February 28, 2015.

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UP 2-8-2 -- 10 locomotives

1915 UP
Number		 First
Number		 Builder Builder
Number		 Date
Built		 Fuel Date
Vacated
UP 2200 UP 700 Baldwin 36511 May 1911 Coal Oct 1947
UP 2201 UP 701 Baldwin 36512 May 1911 Oil Mar 1956
UP 2202 UP 702 Baldwin 36513 May 1911 Coal Mar 1954
UP 2203 UP 703 Baldwin 36514 May 1911 Oil Jun 1954
UP 2204 UP 704 Baldwin 36515 May 1911 Oil Apr 1956
UP 2205 UP 705 Baldwin 36562 May 1911 Oil Mar 1949
UP 2206 UP 706 Baldwin 36563 May 1911 Oil Dec 1957
UP 2207 UP 707 Baldwin 36573 May 1911 Oil Apr 1955
UP 2208 UP 708 Baldwin 36574 May 1911 Oil Mar 1955
UP 2209 UP 709 Baldwin 36575 May 1911 Oil Jun 1956

Description:

  • CS Class: MK-3
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 214,050 pounds
  • Weight in Working Order (Engine Only): 286,117 pounds
  • Weight in Working Order (Engine and Tender): 456,620 pounds
  • Fuel: (see above)

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.

 

UP 2-8-2 -- 10 locomotives

1915 UP
Number		 First
Number		 Builder Builder
Number		 Date
Built		 Fuel Date
Vacated		 Notes
UP 2210 UP 710 Brooks 51618 Sep 1912 Oil Jun 1955 1
UP 2211 UP 711 Brooks 51619 Sep 1912 Oil Jul 1954 2
UP 2212 UP 712 Brooks 51620 Sep 1912 Coal Mar 1948 3
UP 2213 UP 713 Brooks 51621 Sep 1912 Coal Feb 1954 4
UP 2214 UP 714 Brooks 51622 Sep 1912   1923 5
UP 2215 UP 715 Brooks 51623 Sep 1912   1923 6
UP 2216 UP 716 Brooks 51624 Sep 1912 Coal Mar 1948 7
UP 2217 UP 717 Brooks 51625 Sep 1912   1923 8
UP 2218 UP 718 Brooks 51626 Sep 1912   1923 9
UP 2219 UP 719 Brooks 51627 Sep 1912 Oil Feb 1956 10

Description:

  • CS Class: MK-4
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 214,050 pounds
  • Weight in Working Order (Engine Only): 286,120 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel:

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.
  3. Four UP 2210 series 2-8-2s were sent to OSL in 1923, as OSL 2500 series locomotives.

Notes:

  1. UP 2210 was built as UP 710 in 1912; to UP 2210 in 1915; vacated in 1955
  2. UP 2211 was built as UP 711 in 1912; to UP 2211 in 1915; vacated in 1954
  3. UP 2212 was built as UP 712 in 1912; to UP 2212 in 1915; vacated in 1948
  4. UP 2213 was built as UP 713 in 1912; to UP 2213 in 1915; vacated in 1954
  5. UP 2214 was built as UP 714 in 1912; to OSL 2515 (2nd) in 1923
  6. UP 2215 was built as UP 715 in 1912; to OSL 2516 (2nd) in 1923
  7. UP 2216 was built as UP 716 in 1912; to UP 2216 in 1915; vacated in 1948
  8. UP 2217 was built as UP 717 in 1912; to OSL 2517 (2nd) in 1923
  9. UP 2218 was built as UP 718 in 1912; to OSL 2518 (2nd) in 1923
  10. UP 2219 was built as UP 719 in 1912; to UP 2219 in 1915; vacated in 1956

 

UP Heavy 2-8-2 -- 25 locomotives

1915 UP
Number		 First
Number		 Builder Builder
Number		 Date
Built		 Fuel Date
Vacated		 Notes
UP 2220 UP 720 Baldwin 39587 Apr 1913   1923 1
UP 2221 UP 721 Baldwin 39588 Apr 1913 Coal Oct 1953 2
UP 2222 UP 722 Baldwin 39589 Apr 1913 Oil Mar 1948 3
UP 2223 UP 723 Baldwin 39590 Apr 1913 Coal Jul 1955 4
UP 2224 UP 724 Baldwin 39591 Apr 1913   1923 5
UP 2225 UP 725 Baldwin 39592 Apr 1913   1923 6
UP 2226 UP 726 Baldwin 39593 Apr 1913 Coal Sep 1953 7
UP 2227 UP 727 Baldwin 39594 Apr 1913 Oil Nov 1947 8
UP 2228 UP 728 Baldwin 39595 Apr 1913   1923 9
UP 2229 UP 729 Baldwin 39596 Apr 1913 Coal Feb 1948 10
UP 2230 UP 730 Baldwin 39597 Apr 1913 Oil Oct 1954 11
UP 2231 UP 731 Baldwin 39598 Apr 1913 Coal Oct 1953 12
UP 2232 UP 732 Baldwin 39599 Apr 1913 Coal Apr 1948 13
UP 2233 UP 733 Baldwin 39600 Apr 1913   1923 14
UP 2234 UP 734 Baldwin 39601 Apr 1913 Coal Dec 1947 15
UP 2235 UP 735 Baldwin 39602 Apr 1913 Coal Oct 1954 16
UP 2236 UP 736 Baldwin 39603 Apr 1913 Coal Mar 1954 17
UP 2237 UP 737 Baldwin 39604 Apr 1913 Coal Mar 1947 18
UP 2238 UP 738 Baldwin 39605 Apr 1913 Coal Oct 1947 19
UP 2239 UP 739 Baldwin 39606 Apr 1913 Coal Nov 1947 20
UP 2240 UP 740 Baldwin 39607 Apr 1913 Oil Oct 1947 21
UP 2241 UP 741 Baldwin 39674 Apr 1913   1923 22
UP 2242 UP 742 Baldwin 39675 Apr 1913 Coal May 1958 23
UP 2243 UP 743 Baldwin 39676 Apr 1913 Coal Mar 1948 24
UP 2244 UP 744 Baldwin 39677 Apr 1913 Oil May 1956 25

Description:

  • CS Class: MK-5
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 214,050 pounds
  • Weight in Working Order (Engine Only): 286,120 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel: (see above)

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.
  3. Six UP 2220 series 2-8-2s were sent to OSL in 1923, as OSL 2500 series locomotives.

Notes:

  1. UP 2220 was built as UP 720 in 1913; to UP 2220 in 1915; to OSL 2519 (2nd) in 1923
  2. UP 2221 was built as UP 721 in 1913; to UP 2221 in 1915; vacated in 1953
  3. UP 2222 was built as UP 722 in 1913; to UP 2222 in 1915; vacated in 1948
  4. UP 2223 was built as UP 723 in 1913; to UP 2223 in 1915; vacated in 1955
  5. UP 2224 was built as UP 724 in 1913; to UP 2224 in 1915; to OSL 2520 (2nd) in 1923
  6. UP 2225 was built as UP 725 in 1913; to UP 2225 in 1915; to OSL 2521 (2nd) in 1923
  7. UP 2226 was built as UP 726 in 1913; to UP 2226 in 1915; vacated in 1953
  8. UP 2227 was built as UP 727 in 1913; to UP 2227 in 1915; vacated in 1947
  9. UP 2228 was built as UP 728 in 1913; to UP 2228 in 1915; to OSL 2522 (2nd) in 1923
  10. UP 2229 was built as UP 729 in 1913; to UP 2229 in 1915; vacated in 1948
  11. UP 2230 was built as UP 730 in 1913; to UP 2230 in 1915; vacated in 1954
  12. UP 2231 was built as UP 731 in 1913; to UP 2231 in 1915; vacated in 1953
  13. UP 2232 was built as UP 732 in 1913; to UP 2232 in 1915; vacated in 1948
  14. UP 2233 was built as UP 733 in 1913; to UP 2233 in 1915; to OSL 2523 (2nd) in 1923
  15. UP 2234 was built as UP 734 in 1913; to UP 2234 in 1915; vacated in 1947
  16. UP 2235 was built as UP 735 in 1913; to UP 2235 in 1915; vacated in 1954
  17. UP 2236 was built as UP 736 in 1913; to UP 2236 in 1915; vacated in 1954
  18. UP 2237 was built as UP 737 in 1913; to UP 2237 in 1915; vacated in 1947
  19. UP 2238 was built as UP 738 in 1913; to UP 2238 in 1915; vacated in 1947
  20. UP 2239 was built as UP 739 in 1913; to UP 2239 in 1915; vacated in 1947
  21. UP 2240 was built as UP 740 in 1913; to UP 2240 in 1915; vacated in 1947
  22. UP 2241 was built as UP 741 in 1913; to UP 2241 in 1915; to OSL 2524 (2nd) in 1923
  23. UP 2242 was built as UP 742 in 1913; to UP 2242 in 1915; vacated in 1958
  24. UP 2243 was built as UP 743 in 1913; to UP 2243 in 1915; vacated in 1948
  25. UP 2244 was built as UP 744 in 1913; to UP 2244 in 1915; vacated in 1956

 

UP Heavy 2-8-2 -- 15 locomotives

1915 UP
Number		 First
Number		 Builder Builder
Number		 Date
Built		 Fuel Date
Vacated		 Notes
UP 2245 UP 745 Lima 1449 Oct 1914 Coal Apr 1956 1
UP 2246 UP 746 Lima 1450 Oct 1914   1923 2
UP 2247 UP 747 Lima 1451 Oct 1914 Coal Dec 1947 3
UP 2248 UP 748 Lima 1452 Oct 1914 Oil Feb 1948 4
UP 2249 UP 749 Lima 1453 Oct 1914 Coal Apr 1948 5
UP 2250 UP 750 Lima 1454 Oct 1914 Coal Dec 1957 6
UP 2251 UP 751 Lima 1455 Oct 1914 Coal Feb 1948 7
UP 2252 UP 752 Lima 1456 Oct 1914 Oil Apr 1955 8
UP 2253 UP 753 Lima 1457 Oct 1914 Oil Aug 1957 9
UP 2254 UP 754 Lima 1458 Oct 1914   1923 10
UP 2255 UP 755 Lima 1459 Nov 1914 Oil May 1947 11
UP 2256 UP 756 Lima 1460 Nov 1914 Coal Jun 1947 12
UP 2257 UP 757 Lima 1461 Nov 1914 Coal Apr 1954 13
UP 2258 UP 758 Lima 1462 Nov 1914   1923 14
UP 2259 UP 759 Lima 1463 Nov 1914 Coal Jul 1955 15

Description:

  • CS Class: MK-6
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 214,050 pounds
  • Weight in Working Order (Engine Only): 286,120 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel: (see above)

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.
  3. Three UP 2245 series 2-8-2s were sent to OSL in 1923, as OSL 2500 series locomotives.

Notes:

  1. UP 2245 was built as UP 745 in 1914; to UP 2245 in 1915; vacated in 1956
  2. UP 2246 was built as UP 746 in 1914; to UP 2246 in 1915; vacated in 1923; to OSL 2525 (2nd) in 1923
  3. UP 2247 was built as UP 747 in 1914; to UP 2247 in 1915; vacated in 1947
  4. UP 2248 was built as UP 748 in 1914; to UP 2248 in 1915; vacated in 1948
  5. UP 2249 was built as UP 749 in 1914; to UP 2249 in 1915; vacated in 1948
  6. UP 2250 was built as UP 750 in 1914; to UP 2250 in 1915; vacated in 1957
  7. UP 2251 was built as UP 751 in 1914; to UP 2251 in 1915; vacated in 1948
  8. UP 2252 was built as UP 752 in 1914; to UP 2252 in 1915; vacated in 1955
  9. UP 2253 was built as UP 753 in 1914; to UP 2253 in 1915; vacated in 1957
  10. UP 2254 was built as UP 754 in 1914; to UP 2254 in 1915; vacated in 1923; to OSL 2526 (2nd) in 1923
  11. UP 2255 was built as UP 755 in 1914; to UP 2255 in 1915; vacated in 1947
  12. UP 2256 was built as UP 756 in 1914; to UP 2256 in 1915; vacated in 1947
  13. UP 2257 was built as UP 757 in 1914; to UP 2257 in 1915; vacated in 1954
  14. UP 2258 was built as UP 758 in 1914; to UP 2258 in 1915; vacated in 1923; to OSL 2527 (2nd) in 1923
  15. UP 2259 was built as UP 759 in 1914; to UP 2259 in 1915; vacated in 1955

 

UP Heavy 2-8-2 -- 20 locomotives

Road
Number		 Builder Builder
Number		 Date
Built		 Fuel Date
Vacated		 Notes
UP 2260 Baldwin 45765 Jun 1917 Oil Feb 1947 1
UP 2261 Baldwin 45766 Jun 1917 Oil Feb 1947 2
UP 2262 Baldwin 45767 Jun 1917 Coal Apr 1958 3
UP 2263 Baldwin 45768 Jun 1917 Coal Mar 1958 4
UP 2264 Baldwin 45830 Jun 1917 Oil Jan 1956 5
UP 2265 Baldwin 45841 Jun 1917 Coal Nov 1953 6
UP 2266 Baldwin 45842 Jun 1917   1923 7
UP 2267 Baldwin 45843 Jun 1917 Coal Aug 1954 8
UP 2268 Baldwin 45927 Jul 1917   1923 9
UP 2269 Baldwin 45928 Jul 1917 Coal Mar 1953 10
UP 2270 Baldwin 45929 Jul 1917 Coal Jan 1956 11
UP 2271 Baldwin 45987 Jul 1917 Coal Dec 1947 12
UP 2272 Baldwin 45988 Jul 1917 Coal Jun 1958 13
UP 2273 Baldwin 45999 Jul 1917 Oil Feb 1948 14
UP 2274 Baldwin 46000 Jul 1917 Coal Dec 1947 15
UP 2275 Baldwin 46155 Aug 1917   1923 16
UP 2276 Baldwin 46161 Aug 1917 Coal Jan 1948 17
UP 2277 Baldwin 46172 Aug 1917   1923 18
UP 2278 Baldwin 46212 Aug 1917   1923 19
UP 2279 Baldwin 46347 Sep 1917 Coal Mar 1954 20

Description:

  • CS Class: MK-7
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 214,050 pounds
  • Weight in Working Order (Engine Only): 286,120 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel: (see above)

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.
  3. Five UP 2260 series 2-8-2s were sent to OSL in 1923, as OSL 2500 series locomotives.
  4. Jeff Moore provides the following about UP 2260 and 2261 being sold to Oregon & Northwestern:
  5. Oregon & Northwestern purchased the #2260 and #2261 together in February 1947, they cost $10,000 each.  O&NW also bought twenty flatcars from UP to replace a like number lost in the same wreck as the #26.  Two interesting notes relating to the #2260 and #2261- a year by year summary of the O&NW through the 1940s states "Air failure on Extra 26 South January 28, 1947, resulted in loss of one engine valued at $80,000 which was replaced by 2 engines much older and not as good a type for our operation as Engine 26."  On the other hand, veteran O&NW engineer engineer Lawrence Olson stated in another source the #2260 was "the best engine on the O. and N.W.- it steamed best, handled real good, used less fuel."
  6. Oregon & Northwestern retired both #2260 and #2261 in 1955, right after the AS-616 #1 arrived on the property. The railroad junked the #2260 immediately, but sold the #2261 to Edward Hines Lumber Company, where it replaced the old 2-8-0 #5. The #2261 traded off with the former UP 2-8-0 #529 on the logging railroad east of Seneca until the pair of former Brooks-Scanlon Lumber Company Alco S-3s arrived in 1957. Hines sold the #2261 to the Purdy Company for scrap on 30 November 1957.

Notes:

  1. Built as UP 2260 in 1917; vacated in 1947; to Oregon & Northwestern Railroad in February 1947
  2. Built as UP 2261 in 1917; vacated in 1947; to Oregon & Northwestern Railroad in February 1947
  3. Built as UP 2262 in 1917; vacated in 1958
  4. Built as UP 2263 in 1917; vacated in 1958
  5. Built as UP 2264 in 1917; vacated in 1956
  6. Built as UP 2265 in 1917; vacated in 1953
  7. Built as UP 2266 in 1917; vacated in 1923; to OSL 2528 (2nd) in 1923
  8. Built as UP 2267 in 1917; vacated in 1954; retired due to bad left cylinder in July 1954
  9. Built as UP 2268 in 1917; vacated in 1923; to OSL 2529 (2nd) in 1923
  10. Built as UP 2269 in 1917; vacated in 1953
  11. Built as UP 2270 in 1917; vacated in 1956
  12. Built as UP 2271 in 1917; vacated in 1947
  13. Built as UP 2272 in 1917; vacated in 1958
  14. Built as UP 2273 in 1917; vacated in 1948
  15. Built as UP 2274 in 1917; vacated in 1947
  16. Built as UP 2275 in 1917; vacated in 1923; to OSL 2530 (2nd) in 1923
  17. Built as UP 2276 in 1917; vacated in 1948
  18. Built as UP 2277 in 1917; vacated in 1923; to OSL 2531 (2nd) in 1923
  19. Built as UP 2278 in 1917; vacated in 1923; to OSL 2532 (2nd) in 1923
  20. Built as UP 2279 in 1917; vacated in 1954

 

UP 2-8-2 -- 15 locomotives

Road
Number		 Builder Builder
Number		 Date
Built		 Fuel Date
Vacated
UP 2280 Baldwin 48080 Mar 1918 Oil May 1956
UP 2281 Baldwin 48143 Mar 1918 Coal Jul 1954
UP 2282 Baldwin 48290 Apr 1918 Coal Feb 1954
UP 2283 Baldwin 48291 Apr 1918 Coal Oct 1954
UP 2284 Baldwin 48292 Apr 1918 Coal Dec 1947
UP 2285 Baldwin 48293 Apr 1918 Coal Mar 1956
UP 2286 Baldwin 48523 May 1918 Coal Jan 1956
UP 2287 Baldwin 48572 May 1918 Coal Mar 1954
UP 2288 Baldwin 48677 May 1918 Coal Mar 1954
UP 2289 Baldwin 48678 May 1918 Coal Jan 1956
UP 2290 Baldwin 48734 May 1918 Oil May 1956
UP 2291 Baldwin 48777 May 1918 Coal Jun 1949
UP 2292 Baldwin 48894 Jun 1918 Coal Jan 1956
UP 2293 Baldwin 48954 Jun 1918 Oil Nov 1947
UP 2294 Baldwin 48996 Jun 1918 Coal Jul 1956

Description:

  • CS Class: MK-8
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 212,000 pounds
  • Weight in Working Order (Engine Only): 288,750 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel: (see above)

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.
  3. UP 2280-2294 were equipped with Street Stokers

 

UP 2-8-2 -- 20 locomotives (USRA pattern)

Road
Number		 Builder Builder
Number		 Date
Built		 1920 UP
Number
UP 2295 (1st) Schenectady 59518 Sep 1918 UP 2480
UP 2296 (1st) Schenectady 59519 Sep 1918 UP 2481
UP 2297 (1st) Schenectady 59520 Sep 1918 UP 2482
UP 2298 (1st) Schenectady 59521 Sep 1918 UP 2483
UP 2299 (1st) Schenectady 59522 Sep 1918 UP 2484
UP 2300 (1st) Schenectady 59523 Sep 1918 UP 2485
UP 2301 (1st) Schenectady 59524 Sep 1918 UP 2486
UP 2302 (1st) Schenectady 59525 Sep 1918 UP 2487
UP 2303 (1st) Schenectady 59526 Sep 1918 UP 2488
UP 2304 (1st) Schenectady 59527 Sep 1918 UP 2489
UP 2305 (1st) Schenectady 59528 Sep 1918 UP 2490
UP 2306 (1st) Schenectady 59529 Sep 1918 UP 2491
UP 2307 (1st) Schenectady 59530 Sep 1918 UP 2492
UP 2308 (1st) Schenectady 59531 Sep 1918 UP 2493
UP 2309 (1st) Schenectady 59532 Sep 1918 UP 2494
UP 2310 (1st) Schenectady 59533 Sep 1918 UP 2495
UP 2311 (1st) Schenectady 59534 Sep 1918 UP 2496
UP 2312 (1st) Schenectady 59535 Sep 1918 UP 2497
UP 2313 (1st) Schenectady 59536 Sep 1918 UP 2498
UP 2314 (1st) Schenectady 59537 Sep 1918 UP 2499

Description:

  • CS Class: MK-Special (USRA pattern)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x30 inches

General Notes:

  1. UP 2295-2314 (1st) renumbered to UP 2480-2499 series in 1920 to clear the number series for new MK-9 series (UP 2295-2310) (2nd).

 

UP 2-8-2 -- 16 locomotives

Road
Number		 Builder Builder
Number		 Date
Built		 Date
Vacated		 Notes
UP 2295 (2nd) Brooks 61924 Jul 1920 Mar 1959 1
UP 2296 (2nd) Brooks 61925 Jul 1920 Oct 1947  
UP 2297 (2nd) Brooks 61926 Jul 1920 Jun 1953  
UP 2298 (2nd) Brooks 61927 Jul 1920 May 1956  
UP 2299 (2nd) Brooks 61928 Jul 1920 Dec 1947  
UP 2300 (2nd) Brooks 61929 Jul 1920 Nov 1947  
UP 2301 (2nd) Brooks 61930 Jul 1920 Nov 1947  
UP 2302 (2nd) Brooks 61931 Jul 1920 Nov 1954  
UP 2303 (2nd) Brooks 61932 Jul 1920 Apr 1948  
UP 2304 (2nd) Brooks 61933 Jul 1920 Oct 1953  
UP 2305 (2nd) Brooks 61934 Jul 1920 Jul 1950  
UP 2306 (2nd) Brooks 61935 Jul 1920 Sep 1956  
UP 2307 (2nd) Brooks 61936 Jul 1920 Feb 1956  
UP 2308 (2nd) Brooks 61937 Jul 1920 Mar 1948  
UP 2309 (2nd) Brooks 61938 Jul 1920 Aug 1955  
UP 2310 (2nd) Brooks 61939 Jul 1920 Aug 1955  

Description:

  • CS Class: MK-9
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 228,000 pounds
  • Weight in Working Order (Engine Only): 300,000 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel: (see above)

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.
  3. UP 2295-2304 were equipped with Duplex stokers.
  4. UP 2305-2310 were equipped with Duplex D stokers

Notes:

  1. UP 2295 was donated to the City of Boise, Idaho.

 

UP 2-8-2 -- 10 locomotives

1923 UP
Number		 First
Number		 Date To
UP		 Builder Builder
Number		 Date
Built		 Fuel Date
Vacated
UP 2311 (2nd) OSL 2525 (1st) 1923 Baldwin 48997 Jun 1918 Coal Oct 1949
UP 2312 (2nd) OSL 2526 (1st) 1923 Baldwin 49159 Jul 1918 Coal Jan 1956
UP 2313 (2nd) OSL 2527 (1st) 1923 Baldwin 49227 Jul 1918 Oil May 1947
UP 2314 (2nd) OSL 2528 (1st) 1923 Baldwin 49295 Jul 1918 Coal Mar 1954
UP 2315 OSL 2529 (1st) 1923 Baldwin 49296 Jul 1918 Coal May 1956
UP 2316 OSL 2530 (1st) 1923 Baldwin 49359 Jul 1918 Coal Feb 1954
UP 2317 OSL 2531 (1st) 1923 Baldwin 49360 Jul 1918 Coal Jul 1956
UP 2318 OSL 2532 (1st) 1923 Baldwin 49393 Jul 1918 Coal Mar 1955
UP 2319 OSL 2533 1923 Baldwin 49394 Jul 1918 Oil May 1947
UP 2320 OSL 2534 1923 Baldwin 49472 Aug 1918 Coal Jun 1956

Description:

  • CS Class: MK-8
  • Cabside Class: MK-63 (MacA-63 after WWII)
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x28 inches
  • Maximum Tractive Effort: 53,628 pounds
  • Weight on Drivers: 212,000 pounds
  • Weight in Working Order (Engine Only): 288,750 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel: (see above)

General Notes:

  1. Classes MK-1 and MK-2 were classed as Light Mikado; classes MK-3 through MK10 were classed as Heavy Mikado
  2. All MK (Mikado) classes were changed to MacA (MacArthur) classes during World War II.
  3. UP 2311-2320 were built as OSL 2525-2534 in 1918; to UP 2311-2320 in 1923 in trade for 18 UP MK-4, MK-5, and MK-6, and MK-7 2-8-2s that were sent to OSL.
  4. Eight locomotives (except UP 2313 and 2319) were coal-fired and equipped with Duplex stokers; UP 2313 and 2319 were oil-fired.

 

UP 2-8-2 -- 20 locomotives (USRA pattern)

Road
Number		 First
Number		 Date To
2480 Series		 Builder Builder
Number		 Date
Built		 Date
Vacated
UP 2480 UP 2295 (1st) 1920 Schenectady 59518 Sep 1918 Feb 1956
UP 2481 UP 2296 (1st) 1920 Schenectady 59519 Sep 1918 Dec 1953
UP 2482 UP 2297 (1st) 1920 Schenectady 59520 Sep 1918 Feb 1956
UP 2483 UP 2298 (1st) 1920 Schenectady 59521 Sep 1918 Feb 1956
UP 2484 UP 2299 (1st) 1920 Schenectady 59522 Sep 1918 Sep 1956
UP 2485 UP 2300 (1st) 1920 Schenectady 59523 Sep 1918 Feb 1956
UP 2486 UP 2301 (1st) 1920 Schenectady 59524 Sep 1918 Jan 1954
UP 2487 UP 2302 (1st) 1920 Schenectady 59525 Sep 1918 Mar 1955
UP 2488 UP 2303 (1st) 1920 Schenectady 59526 Sep 1918 Mar 1955
UP 2489 UP 2304 (1st) 1920 Schenectady 59527 Sep 1918 Apr 1954
UP 2490 UP 2305 (1st) 1920 Schenectady 59528 Sep 1918 Oct 1953
UP 2491 UP 2306 (1st) 1920 Schenectady 59529 Sep 1918 Jul 1954
UP 2492 UP 2307 (1st) 1920 Schenectady 59530 Sep 1918 Feb 1954
UP 2493 UP 2308 (1st) 1920 Schenectady 59531 Sep 1918 Dec 1953
UP 2494 UP 2309 (1st) 1920 Schenectady 59532 Sep 1918 Feb 1956
UP 2495 UP 2310 (1st) 1920 Schenectady 59533 Sep 1918 Oct 1954
UP 2496 UP 2311 (1st) 1920 Schenectady 59534 Sep 1918 Mar 1954
UP 2497 UP 2312 (1st) 1920 Schenectady 59535 Sep 1918 Jun 1958
UP 2498 UP 2313 (1st) 1920 Schenectady 59536 Sep 1918 Jun 1958
UP 2499 UP 2314 (1st) 1920 Schenectady 59537 Sep 1918 Mar 1955

Description:

  • CS Class: MK-Special (USRA pattern)
  • Cabside Class: MK-63
  • Drive Wheel Diameter: 63 inches
  • Cylinders: 26x30 inches
  • Maximum Tractive Effort: 54,700 pounds
  • Weight on Drivers: 221,500 pounds
  • Weight in Working Order (Engine Only): 290,800 pounds
  • Weight in Working Order (Engine and Tender): (varied due to different tender styles)
  • Fuel: Coal

General Notes:

  1. UP 2480-2499 were built as UP 2295-2314 (1st) in 1918; renumbered to UP 2480-2499 series in 1920 to clear the 2295 series for new MK-9 2-8-2s.
  2. UP 2480-2499 were equipped with Duplex stokers

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