Union Pacific Railroad

Roster of Diesel and Turbine Locomotives, 1934-2009

This page was last updated on August 24, 2017.

(Return to UP Diesel Roster Index Page)

Roster Listing

BLW VO-1000 -- 6 units
1000 horsepower; B-B trucks; 240,700 pounds operating weight

Road
Number
First
Number
Builder
Date
Builder
Number
Date
Retired
UP 1200 UP 1060 Oct 1943 69672 Oct 1962
UP 1201 UP 1059 Oct 1943 69775 Oct 1962
UP 1202 UP 1058 Oct 1943 69776 Oct 1962
UP 1203 UP 1057 Oct 1943 69777 Oct 1962
UP 1204 UP 1056 Feb 1944 70147 Oct 1962
UP 1205 UP 1055 Feb 1944 70148 Oct 1962

General Notes:

  1. UP 1200-1205 were delivered to UP as 1060, 1059, 1058, 1057, 1056 and 1055 in reverse order of builder's number sequence for unknown reasons, renumbered to UP 1200-1205 in builder's number sequence in May 1945.
  2. UP 1200-1205, as 1055-1060 series, delivered in UP's black switcher paint scheme, repainted to yellow in late 1947.
  3. UP 1200-1205 were in service at Omaha, Nebraska, during June 1960.
  4. UP 1200 had Baldwin order number 42530-J.
  5. UP 1201-1203 had Baldwin order number 43502-B.
  6. UP 1204, 1205 had Baldwin order number 43506-A.

 

BLW DS-4-4-10 -- 5 units
1000 horsepower; B-B trucks; 229,600 pounds operating weight

Road
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1206 Sep 1948 73768 Feb 1965 Traded to Alco in July 1966; scrapped by Industrial Maintenance Service, Hammond, Ind., in October 1966.
UP 1207 Sep 1948 73769 Feb 1965 Traded to Alco in July 1966; scrapped by Industrial Maintenance Service, Hammond, Ind., in August 1966.
UP 1208 Sep 1948 73770 Feb 1965 Traded to Alco in July 1966.
UP 1209 Sep 1948 73771 Feb 1965 Traded to Alco in July 1966; scrapped by Industrial Maintenance Service, Hammond, Ind., in September 1966.
UP 1210 Sep 1948 73772 Feb 1965 Traded to Alco in July 1966; scrapped by Industrial Maintenance Service, Hammond, Ind., in September 1966.

General Notes:

  1. UP 1206-1210 were in service at Omaha, Nebraska, during June 1960.
  2. Union Pacific records show model as DS-4 4 1000/1SC.
  3. UP 1206-1210 had Baldwin order number 47521-D.

 

Alco RS-1 -- 12 units
1000 horsepower; B-B trucks; 240,000 pounds operating weight

Road
Number
First
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1211 SI 200 Sep 1949 77166 May 1969 Traded to EMD in May 1969.
UP 1212 SI 201 Sep 1949 77167 Nov 1969 Traded to EMD in November 1969.
UP 1213 SI 202 Sep 1949 77168 Oct 1969 Traded to EMD in October 1969.
UP 1214 SI 203 Oct 1949 77169 Nov 1969 Traded to EMD in November 1969.
UP 1215 SI 204 Oct 1949 77170 Apr 1969 Traded to EMD in April 1969.
UP 1216 SI 205 Oct 1949 77171 Dec 1969 Sold to Chrome Crankshaft Co., Chicago, Illinois, 27 December 1969; sold to Tidewater Southern 747, 2 February 1970; sold for scrap to The Purdy Co., Ewing, California, 27 August 1975.
UP 1217 SI 206 Nov 1949 77839 Nov 1969 Traded to EMD in November 1969.
UP 1218 SI 207 Dec 1949 77840 Dec 1969 Sold to Chrome Crankshaft Co., Chicago, Illinois, 27 December 1969; sold to Tidewater Southern 746, 2 February 1970; sold to Central California Traction Co., Stockton, California, 31 December 1976.
UP 1219 SI 208 Dec 1949 77841 Jul 1969 Traded to EMD in July 1969.
UP 1220 SI 209 Jul 1953 79586 Nov 1969 Traded to EMD in November 1969.
UP 1221 SI 210 Jul 1953 79587 Aug 1969 Traded to EMD in August 1969.
UP 1222 SI 211 Aug 1953 79588 Nov 1969 Traded to EMD in November 1969.

General Notes:

  1. Built as Spokane International Railway 200-211; acquired by Union Pacific along with 99% control of railroad, on 6 October 1958.
  2. Union Pacific leased all 12 locomotives from Spokane International in 1962 and repainted them to UP's standard yellow and gray paint scheme, with Spokane International spelled out in UP's rounded Gothic style lettering.
  3. Operated on Spokane International until leased to UP in 1962, then moved by UP to Eastern District; assigned to Denver during 1965 and Kansas City during 1967.
  4. UP 1211-1216 had Alco order number S-3112.
  5. UP 1217-1219 had Alco order number S-3121.
  6. UP 1220-1222 had Alco order number S-3188.

 

BLW DRS-6-4-15 -- 1 unit
1500 horsepower; A1A-A1A trucks; 283,000 pounds operating weight (188,700 pounds weight on drivers)

Road
Number
First
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1250 BLW 1500 Sep 1946 72629 Aug 1962 Sold to Industrial Maintenance Service, Hammond, Indiana, in July 1966; at EMD during December 1971.

General Notes:

  1. Some builder lists show the build date as January 25, 1947.
  2. Built as Baldwin demonstrator 1500; sold to UP in January 1948.
  3. Equipped with a steam generator.
  4. UP 1250 was UP's first six-axle road switcher, entering service on 25 January 1948 at Spokane, Washington; still at Spokane, Washington during June 1960.
  5. Union Pacific records show model as 0-6-6-0 1500/1 DE 30.
  6. UP 1250 had Baldwin order number 45512-B.

 

Alco S-3 -- 1 unit
660 horsepower; B-B trucks; 198,000 pounds operating weight

Road
Number
First
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1250 MH 50 Sep 1950 78317 Aug 1970 Traded to EMD in August 1970.

General Notes:

  1. UP 1250 was built as Mount Hood Railway 50; acquired on 16 October 1968, along with the entire railroad.
  2. UP 1250 repainted to full UP yellow and gray in February 1969.
  3. There is a Jack Pfeifer photo of UP 1250 at the Albina engine shop in Portland on May 5, 1969; this photo also shows a snowplow on the cab end of the unit; there is also a Ken Ardinger photo dated August 1, 1969 that shows UP 1250 in fresh paint but back on the Mount Hood branch line. (Modeler Railroader forum, July 9, 2013)
  4. UP 1250 had Alco order number S-3153.

 

Alco HH-1000 -- 1 unit
1000 horsepower; B-B trucks; 230,000 pounds operating weight

Road
Number
First
Number
Second
Number
Third
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1251 N&SS 2 N&SS 1002 MH 51 Jul 1940 69147 Aug 1970 Sold for scrap locally in Portland, Oregon, after October 15, 1971 (date of photo)

General Notes:

  1. Built as Newburgh & South Shore 2, Cleveland, Ohio; renumbered to 1002; sold to Mount Hood Railway 51 in November 1954; acquired by UP on 16 October 1968 along with entire railroad.
  2. UP 1251 had only been renumbered and did not receive full UP yellow and gray paint by the time it was retired.
  3. UP 1251 had Alco order number S-1810.

 

BLH AS-616 -- 6 units
1600 horsepower; C-C trucks; 326,800 pounds operating weight

Road
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1260 Dec 1951 75185 Jan 1969 Traded to EMD in January 1969.
UP 1261 Dec 1951 75186 Dec 1969 Traded to EMD in December 1969.
UP 1262 Jan 1952 75187 Apr 1968 Traded to EMD in April 1968.
UP 1263 Jan 1952 75188 Apr 1968 Traded to EMD in April 1968.
UP 1264 Jan 1952 75189 Apr 1968 Traded to EMD in June 1968.
UP 1265 Jan 1952 75190 May 1968 Traded to EMD in June 1968.

General Notes:

  1. Built by Baldwin-Lima-Hamilton Corporation; Baldwin Locomotive Works merged with Lima-Hamilton Corporation on December 4, 1950 to form the Baldwin-Lima Hamilton Corporation.
  2. UP 1260 was assigned to the hump yard at Pocatello, Idaho
  3. During June 1960, UP's six AS-616s were in service at the following locations: UP 1260 and 1261 were at Pocatello, Idaho; UP 1262 and 1263 were at North Platte, Nebraska; UP 1264 was at St. Joseph, Missouri; and UP 1265 was at Marysville, Kansas.
  4. UP 1262 was leased to Ogden Union Railway & Depot Co., at Ogden, Utah, on 29 February 1964. OUR&D was jointly owned by UP and SP, and performed much of the terminal switching in Ogden.
  5. UP 1260-1265 had Baldwin order number 50529-E.

 

Alco/EMD RS-1M -- 1 unit
1000 horsepower; B-B trucks; 228,000 pounds operating weight

Road
Number
First
Number
Builder
Date
Builder
Number
Rebuild
Date
Date To
UP
Date
Retired

Notes
UP 1270 BRR 570 May 1943 70820 Dec 1951 May 1959 Feb 1972 Traded to EMD in February 1972.

General Notes:

  1. UP 1270 built as Bamberger Railroad 570, an Alco RS-1; Bamberger 570 was re-engined by EMD in December 1951 using a 12-cylinder EMD 567 1000 horsepower engine and a new EMD-design long hood; Bamberger 570 was sold to UP in May 1959, along with portions of the Bamberger Railroad in the Ogden, Utah, area.
  2. January 1960 -- "NEW HOME FOR THE HYBRID: Union Pacific, a railroad known for variety in motive power, has picked up an odd one: Bamberger Railroad diesel 570, now UP 1270. Bamberger (which folded last year ) got the early road-switcher from Alco-GE in 1943. Although the few units built up to that time had been partly requisitioned for wartime use in Iran, the Utah electric rated One complete with heating boiler (and a trolley pole to throw signals ) for its troop trains. The Alco's silhouette became truly unforgettable in 1951, when upgrading at La Grange gave it an EMD hood." (Trains magazine, January 1960, page 14)
  3. Operated by UP on Eastern District; assigned during 1965 to Denver.
  4. UP 1270 has Alco order number S-1901.

 

EMD/UP SW10 -- 75 units
1200 horsepower; B-B trucks; 251,200 pounds operating weight

Road
Number
First
Number
Rebuild
Date
Rebuilt
From
Renumber
Date
Date
Retired
Notes
UP 1200 UP 1848 2 Aug 1979 SW9 1848   31 Dec 1997 1
UP 1201 UP 1839 Nov 1979 SW9 1839     2
UP 1202 UP 1866 25 Jan 1980 SW9 1866   13 Jul 1998 3
UP 1203   9 Mar 1980 SW9 1864   14 May 1996 4
UP 1204   17 Apr 1980 SW9 1853   14 Jul 1998 5
UP 1205   21 May 1980 SW9 1865   14 Jul 1998 5
UP 1206   24 Jun 1980 SW9 1850     6
UP 1207   25 Aug 1980 SW9 1859   14 Jul 1998 5
UP 1208   4 Sep 1980 SW9 1828   14 May 1996 7
UP 1209   9 Oct 1980 SW9 1861   20 Apr 1994 8
UP 1210   31 Oct 1980 SW9 1831     9
UP 1211   26 Nov 1980 SW9 1847   14 Jul 1998 5
UP 1212   15 Dec 1980 SW9 1836   14 Jul 1998 10
UP 1213   2 Jan 1981 SW9 1862   14 Jul 1998 10
UP 1214   23 Jan 1981 SW9 1854   14 Jul 1998 11
UP 1215   30 Jan 1981 SW9 1851     12
UP 1216   27 Feb 1981 SW9 1852   28 Apr 1992 13
UP 1217   30 Mar 1981 SW9 1844   14 Jul 1998 10
UP 1218   30 Mar 1981 SW9 1860   14 Jul 1998 5
UP 1219   30 Apr 1981 SW9 1825   21 Feb 1997 14
UP 1220   30 Apr 1981 SW9 1846   14 Jul 1998 10
UP 1221   30 May 1981 SW9 1832   14 Jul 1998 10
UP 1222   30 Jun 1981 SW9 1849   14 Jul 1998 10
UP 1223   30 Jun 1981 SW9 1857   14 Jul 1998 5
UP 1224   30 Jul 1981 SW9 1856   24 Sep 1993 15
UP 1225   30 Sep 1981 SW9 1835   14 Jul 1998 5
UP 1226   30 Sep 1981 SW9 1858   3 Apr 1998 5
UP 1227   30 Oct 1981 TR5A 1874   14 May 1996 16
UP 1228   30 Nov 1981 TR5A 1876   14 Jul 1998 5
UP 1229   30 Dec 1981 TR5A 1873     17
UP 1230   10 Feb 1982 SW9 1833   14 Jul 1998 10
UP 1231   28 Feb 1982 SW7 1817   14 Jul 1998 10
UP 1232   31 Mar 1982 SW9 1855   14 Jul 1998 18
UP 1233   30 Jun 1982 SW7 1824     19
UP 1234   30 Jun 1982 TR5A 1872   14 Jul 1998 20
UP 1235   30 Jun 1982 TR5A 1875   14 Jul 1998 18
UP 1236   30 Jul 1982 SW7 1806   14 Jul 1998 18
UP 1237 (1st)   30 Jul 1982 SW7 1810   12 Aug 1991 21
UP 1237 (2nd) UP 1233 30 Jun 1982 SW7 1824 20 Mar 1997 14 Jul 1998 5
UP 1238   30 Aug 1982 SW7 1822   14 Jul 1998 18
UP 1239   30 Aug 1982 SW7 1815   14 Jul 1998  
UP 1240   30 Sep 1982 SW9 1826   14 Jul 1998 10
UP 1241 (1st)   30 Sep 1982 TR5A 1871   7 Oct 1996  
UP 1241 (2nd) UP 1201 Nov 1979 SW9 1839 6 Nov 1997 22 Jun 1998 5
UP 1242   30 Oct 1982 SW9 1834   14 Jul 1998 18
UP 1243   30 Nov 1982 SW7 1821     22
UP 1244   30 Dec 1982 SW9 1840   14 Jul 1998 5
UP 1245   28 Feb 1983 SW7 1802   7 Mar 1988 23
UP 1246   28 Feb 1983 SW7 1804   14 Jul 1998 18
UP 1247   30 Mar 1983 SW7 1808   1 Jul 1998 18
UP 1248   30 Mar 1983 SW7 1800   3 Jul 1998 18
UP 1249   30 Jun 1983 SW7 1814   1 Jul 1998 18
UP 1250   30 Jun 1983 SW7 1823   31 Dec 1997 24
UP 1251   30 Jul 1983 SW7 1801   3 Apr 1998 24
UP 1252   30 Sep 1983 SW7 1807   14 Jul 1998 18
UP 1253   30 Sep 1983 SW9 1841   14 Jul 1998 25
UP 1254   30 Sep 1983 SW7 1816   21 Feb 1997 24
UP 1255   30 Sep 1983 SW7 1813   14 Jul 1998 25
UP 1256   30 Sep 1983 SW7 1820   15 Jul 1998 5
UP 1257   30 Mar 1984 TR5A 1877   14 Jul 1998 18
UP 1258   30 Nov 1983 SW9 1829   14 May 1996 26
UP 1259   30 Dec 1983 SW9 1837   21 Feb 1997 14
UP 1260   30 Jul 1984 SW7 1805   14 Jul 1998 18
UP 1261   30 Jul 1984 MP SW9 1243   12 Apr 1997 27
UP 1262   30 Jul 1984 MP SW9 1244   12 Apr 1997 27
UP 1263   30 Oct 1984 MP SW9 1246   12 Apr 1997 27
UP 1264 (1st)   30 Aug 1984 MP SW9 1245   14 May 1996 14
UP 1264 (2nd) UP 1210 31 Oct 1980 SW9 1831 8 Nov 1997 15 Jul 1998 5
UP 1265   16 Sep 1984 SW9 1838   14 Jul 1998 18
UP 1266   30 Sep 1984 MP SW9 1242   6 Feb 1990 28
UP 1267   25 Oct 1984 MP SW9 1226   20 Aug 1992 29
UP 1268   30 Oct 1984 MP SW9 1251   12 Apr 1997 27
UP 1269   30 Oct 1984 MP SW9 1232   14 Jul 1998 18
UP 1270   14 Nov 1984 MP SW9 1233   12 Apr 1997 30
UP 1271   30 Nov 1984 WP SW9 601   5 Jun 1991 31
UP 1272   30 Nov 1984 WP SW9 603   7 Oct 1996 32
UP 1273   22 Dec 1984 WP SW9 605   7 Oct 1996 4
UP 1274 (1st)   30 Dec 1984 WP SW9 606   6 Feb 1990 33
UP 1274 (2nd) UP 1215 30 Jan 1981 SW9 1851   14 Jul 1998 10
UP 1276 UP 1206 24 Jun 1980 SW9 1850 7 Aug 1997 15 Jul 1998 5
UP 1284 UP 1229 30 Dec 1981 TR5A 1873 21 Aug 1997 15 Jul 1998 5

General Notes:

  1. Rebuilt by UP Omaha Shops from UP SW7s, SW9, TR5As, former MP SW9s, and former WP SW9s.
  2. UP 1200 was completed as SW10 1848 on 2 August 1979, renumbered to UP 1200 on 13 March 1980.
  3. UP 1201 was completed as SW10 1839 in November 1979, renumbered to UP 1201 on 1 April 1980.
  4. UP 1202 was completed as SW10 1866, with a completion date of 25 January 1980; renumbered to UP 1202 sometime after 29 January 1980, the date of a recently discovered slide. (update from John Benson via email dated December 2, 2014)
  5. UP 1214, 1215, 1216, 1217, 1218, 1219 were completed during the period that Union Pacific used black cab-side numbers, November 1980 to late April 1981.
  6. UP 1205 was wrecked during 1981; damage repaired in July 1981 by using the cab from retired UP SW7 1812.
  7. UP 1207, 1212, 1213, 1217, 1218, 1220, 1221, 1222, 1225, 1228, 1230, 1231, 1236, 1240, 1274 (2nd), and 1284 (16 units) were stored at Salt Lake City during mid-July 1998 following their retirement. Eight units (UP 1207, 1213, 1220, 1221, 1228, 1231, 1274 (2nd), and 1284) had been stored out of service at Salt Lake since mid-May 1998.
  8. UP 1256, 1264 (2nd), 1276, and 1284 (four units) were retired on 15 July 1998, and were the last SW10s retired by UP, although several SW10s continued to operate in various yards across the system for another two weeks due to a shortage of switching locomotives.
  9. Above "Rebuilt From" column does not include full history of each unit.

Notes:

  1. UP 1200 was sold to Boise Locomotive Co., Boise, Idaho, on 15 April 1999; sold to Diesel Supply, Hudson, Wisconsin, in July 1999; moved on 13 July 1999 to Columbia Basin Railroad at Yakima, Washington, for repairs and repainting; moved from Yakima to Delta, Utah, as DLSX 1200 during early April 2000; leased to Circle 4 Farms, Milford, Utah (replacing a wrecked TrackMobile); lettered as Hog Express.
  2. UP 1201 was renumbered to UP 1241 (2nd), 6 November 1997.
  3. UP 1202 was sold to Farmers Grain Co-op, Cruger (Eureka), Illinois, in August 1998; seen switching the Grainland Co-Op in Eureka, Illinois, on September 18, 2004; still there as of September 2008; still there as of August 2017. (2004 update from Ken Lanovich, email dated September 18, 2004; 2008 update from Ken Ardinger, email dated October 20, 2008; 2017 update from Karl Sollmann, email August 23, 2017)
  4. UP 1203 and 1273 were retired and sold to Helm Financial in February 1997; moved to Metro East Industries, East St. Louis, Illinois; UP 1203 was wrecked in a yard switching accident on December 18, 1989 at East Los Angeles, California.
  5. UP 1204, 1205, 1207, 1211, 1218, 1223, 1225, 1226, 1228, 1237 (2nd), 1241 (2nd), 1244, 1256, 1264 (2nd), 1276, 1284 (16 units) were sold to David J. Joseph Co. in July 1998. Further dispositions as follows:
  Road
Number
Known Disposition
  UP 1204 To David J. Joseph Co. (DJPX) 1204, leased to Fort Wort & Western Railroad (FWWR) for four months during 1999, to Chaparral Steel at Petersburg, Virginia, later in 1999 as number L409-2. (information from Randy Keller via email on February 27, 2007)
  UP 1205 Sold to Mobile Locomotive Service, moved to Lake Terminal (Kobe Steel), Lorain, Ohio in November 1998 and January 1999.
  UP 1218 Sold to Mobile Locomotive Service, moved to Lake Terminal (Kobe Steel), Lorain, Ohio in November 1998 and January 1999.
  UP 1223 Sold to Mobile Locomotive Service, moved to Lake Terminal (Kobe Steel), Lorain, Ohio in November 1998 and January 1999.
  UP 1228 Sold to Mobile Locomotive Service, moved to Lake Terminal (Kobe Steel), Lorain, Ohio in November 1998 and January 1999.
  UP 1237 (2nd) Sold to Mobile Locomotive Service, moved to Lake Terminal (Kobe Steel), Lorain, Ohio in November 1998 and January 1999.
  UP 1241 (2nd) To (leased?, sold?) CF Industries, Donaldson, Louisiana, then to Clinton Terminal (CRT), Clinton, North Carolina.
  UP 1284 Lost in transit after sale in 1998 to David J. Joseph Co. and returned to UP in December 2000 (still painted full UP yellow and gray); stored at Houston until sale by auction to Larrys Truck Electric in August 2002; moved to LTEX at MacDonald, Ohio, sold to Larrys Truck Electric (LTEX) for a reported $4000, basically its scrap value because of the condition of its internal components. LTEX reportedly bought it as a parts source; still there as of November 2011. (Note that this is not the SW10 that is lettered as NREX 1284, which is ex CP 1284, originally UP 1221.)
6. UP 1206 was renumbered to UP 1276, 7 August 1997.
7. UP 1208 was sold to Midwest Locomotive, formerly known as Comet Midwest; Midwest Locomotive company sold to Larrys Truck Electric (LTEX) and UP 1208 was moved to the former Midwest facility near Kansas City during February 2000.
8. UP 1209 was wrecked (collision with string of runaway cars in yard) on 3 December 1993 at Salt Lake City, Utah; scrapped by UP at Salt Lake City during mid-December 1993; stripped to the bare frame, which was loaded on a flat car and shipped to a local scrapper.
9. UP 1210 was renumbered to 1264 (2nd), 8 November 1997.
10. UP 1212, 1213, 1217, 1220, 1221, 1222, 1230, 1231, 1240, 1274 (2nd) (10 units) were sold to Connell Finance in July 1998; moved to Livingston Rebuild Center, Livingston, Montana; further dispositions shown below:
  Road
Number
Known Disposition
  UP 1230 At Boise Locomotive Co., in Boise, Idaho, on 2 July 1999; to Salt Lake Garfield & Western DS9 in March 2000.
  UP 1212,
1213, 1217,
1220, 1221,
1222, 1231,
1240
Total of eight units (UP 1212, 1213, 1217, 1220, 1221, 1222, 1231, 1240) leased to CP in October 1999 on a planned long term lease, assigned CP 1280-1287; three units repainted before reliability problems became apparent and all eight units returned to Connell; sold to National Rail Equipment (NREX) in (??) and used in national lease service. NREX 1287 (ex CP 1287) seen en route (from?) to Applialachian Fuels LLC, Ashland, Kentucky.; waybilled on 28 December 2005 via CN-Toledo-CSXT-Ashland.
  UP 1274 (2nd) To Salt Lake Garfield & Western DS10 in March 2000.
11. UP 1214 was sold to Scoular Grain, Salina, Kansas. in June 1998; later to Haviland, Kansas.
12. UP 1215 was renumbered to UP 1274 (2nd), 10 December 1997.
13. UP 1216 was sold to Pielet Brothers Scrap Iron & Metal, McCook, Illinois, 17 March 1993; then sold to National Railway Equipment, Dixmoor, Illinois, in July 1993; then sold to Michigan Limestone 108 in about September 1996.
14. UP 1219, 1259, and 1264 (1st) were sold to Diesel Supply Co., on 23 July 1997. Further dispositions, as follows:
  Road
Number
Known Disposition
  UP 1219 Sold to Arizona Public Service 4.
  UP 1259 Sold to Rail Switching Services and renumbered to RSS 1259.
  UP 1264 (1st) Leased to Murphy-Brown, Inc in Bladenboro, North Carolina; returned to Diesel Supply Co. in August 2005 (exchanged for DLSX GP9 4604 was the replacement); DSLX 1264 sold to LRS Companies, who resold it to Denver Rock Island Railroad; moved to DRIR on 17 May 2006; painted as DRIR in late May 2006. DRIR 1264 has been frame-checked and confirmed to be ex MP 1245. (update from Randy Keller, Joe McMillan and Norm Metcalf)
15. UP 1224 was the motive power for the last run in the operation of the former WP trackage in San Francisco, on July 18, 1986; assigned to Salt Lake City; wrecked (cab damage) in September 1993; retired on September 24, 1993; moved to North Little Rock for repair estimate; sold to Helm Financial during early 1998, sent by Helm for repairs to Livingston Repair Center, later shown as one of five SW10s available for lease.
16. UP 1227 was sold to Ohio Central Railroad in June 1997, then to Spartan Steel Coating (SCPX) 1227, Monroe, Michigan.
17. UP 1229 was renumbered to 1284, 21 August 1997.
18. UP 1232, 1235, 1236, 1238, 1239, 1242, 1246, 1247, 1248, 1249, 1252, 1257, 1260, 1265, 1269 (15 units) were sold to Ferrocarril Mexicano (FerroMex) in Mexico in July 1998.
19. UP 1233 was renumbered to 1237 (2nd), 20 March 1997.
20. UP 1234 was sold to Coast Rail Services (CRSX), Brea, California, in July 1998.
21. UP 1237 (1st) was sold to VMV Enterprises, Paducah, Kentucky, on 9 December 1991; then sold to National Railway Equipment in August 1994; then sold to Michigan Limestone 109 in September 1996.
22. UP 1243 was renumbered to UP 96 on 2 January 1998; assigned to passenger service, as UP 1243 in January 1993 and retained as part of heritage fleet at Cheyenne, Wyoming.
23. UP 1245 was wrecked (cracked frame) on 4 March 1987 at North Platte, Nebraska. The wrecked unit's hood was used to repair another wreck damaged SW10, cab and frame (only) were sold for scrap to Aaron Ferer and Sons, Omaha, Nebraska, 29 March 1988.
24. UP 1250, 1251, and 1254 were sold to Boise Locomotive Co., Boise, Idaho, on 15 April 1999; moved to Boise on 3 June 1999; moved to St. Louis on 15 July 1999; UP 1251and 1254 were sold to Transglobal Rail, Oelwein, Iowa; UP 1251 used by State Line Co-op in Northern, Iowa.
25. UP 1253 and 1255 were sold to National Railway Equipment in July 1998; UP 1255 to Granite Rock 2000, Logan, California, in May 1999.
26. UP 1258 was sold to Helm Financial Scrapped by Illinois Railway Supply, Cordova, Illinois.
27. UP 1261, 1262, 1263, 1268 (along with UP 1270, below) were sold to Mid America Equipment Co., Mesa, Arizona, in June 1997; shipped in November 1997; sold in exchange for McCloud Railway SD38-2 39, which became UP 2824; most Mid America equipment sold to David Joseph Co., early September 1999.
28. UP 1266 was sold to VMV Enterprises in October 1991; to RLIX 1266 by 2 April 1996; seen in transit at Jacksonville, Flodida.
29. UP 1267 was wrecked (fire damage to cab) while leased to Port Terminal Railroad Association, Houston, Texas; removed from service on 9 April 1992; retired in August 1992; sold to National Railway Equipment, 31 March 1993; to Roanoke Valley Cogeneration Project, Weldon, North Carolina.
30. UP 1270 was sold to Mid America Equipment Co., Mesa, Arizona, in June 1997, along with four others (UP 1261, 1262, 1263, and 1268); shipped in November 1997; entire group of five units were sold in exchange for McCloud Railway SD38-2 39, which became UP 2824; UP 1270 was later sold to North American Fly Ash, Pegs, New Mexico; possibly sold in September 1999 to David Joseph Co.; later sold to Western Rail (WRIX) and seen in transit at East St. Louis, Illinois, in early November 2005.
31. UP 1271 was sold to Western Railway Supply, Fontana, California, in October 1991; sold to Peoria Locomotive Works, Peoria, Illinois; sold to Peoria & Pekin Union 701 in January 1993.
32. UP 1272 was sold to Quality Aggregate, Gads Hill., Missouri, on 29 October 1997.
33. UP 1274 (1st) was sold to South East Kansas Railroad in October 1991.
   

Alco RSC-2 -- 11 units
1500 horsepower; A1A-A1A trucks; operating weight (see general note, below)

Road
Number
First
Number
Second
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1280 UP 1180   Mar 1948 75693 Dec 1971 Traded to EMD in December 1971.
UP 1281 UP 1181   Apr 1948 75936 Oct 1971 Traded to EMD in October 1971.
UP 1282 UP 1182   Apr 1948 75937 Oct 1971 Traded to EMD in October 1971.
UP 1283 UP 1183   Apr 1948 75938 Jan 1969 Traded to EMD in January 1969.
UP 1284 UP 1184   Apr 1948 75939 Apr 1968 Traded to EMD in April 1968.
UP 1285 UP 1185   Apr 1948 75940 Dec 1971 Traded to EMD in December 1971.
UP 1286 UP 1186   Apr 1948 75941 May 1969 Traded to EMD in May 1969.
UP 1287 UP 1187   Apr 1948 75947 Mar 1968 Traded to EMD in April 1968.
UP 1288 UP 1188   Apr 1948 75948 Jan 1969 Traded to EMD in January 1969.
UP 1289 UP 1189   Apr 1948 75949 Nov 1969 Traded to EMD in November 1969.
UP 1290 Alco 1190 UP 1190 Feb 1947 75136 May 1968 Traded to EMD in July 1968.

General Notes:

  1. UP 1280-1289 were built as 1180-1189; renumbered to 1280-1289 in October 1955 to make room in the 1100 series for additional Alco S-4 switchers.
  2. UP 1290 was built as Alco demonstrator 1190, in UP yellow and gray paint; sold to UP on 19 March 1948; renumbered to 1290 in October 1955 to make room in the 1100 series for additional Alco S-4 switchers.
  3. UP 1280 and 1281 had 235,000 pounds operating weight and 156,600 pounds weight on drivers.
  4. UP 1282, 1283, 1286, 1287, 1288, and 1289 had 274,000 pounds operating weight and 193,900 pounds weight on drivers, which included an additional 800 gallon fuel tank.
  5. UP 1284 and 1285 had 264,400 pounds operating weight and 188,100 pounds weight on drivers.
  6. UP 1281, 1282, 1287, and 1289 were equipped for multiple unit operation.
  7. UP 1280 had Alco order number S-3053 (shared with UP RS-2s 1193, 1194)
  8. UP 1281-1289 had Alco order number S-3063.
  9. UP 1290 had Alco order nnumber S-3024.

 

Alco RS-2 -- 5 units
1500 horsepower; B-B trucks; 250,000 pounds operating weight

Road
Number
First
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 1291 UP 1191 Feb 1947 75266 Jan 1969 Traded to EMD in January 1969.
UP 1292 UP 1192 Feb 1948 75572 Feb 1968 Traded to EMD in April 1968.
UP 1293 UP 1193 Feb 1948 75691 Apr 1968 Traded to EMD in June 1968.
UP 1294 UP 1194 Feb 1948 75692 Feb 1968 Traded to EMD in April 1968.
UP 1295 UP 1195 Jan 1949 76240 Mar 1968 Traded to EMD in March 1968.

General Notes:

  1. UP 1291-1295 were built as UP 1191-1195; renumbered to UP 1291-1295 in October 1955 to make room in the 1100 series for additional Alco S-4 switchers.
  2. Alco order numbers:
  Road
Number
Alco Order
Number
  UP 1291 S-3029
  UP 1292 S-3046
  UP 1293, 1294 S-3053 (shared with UP RSC-2 1280)
  UP 1295 S-3074
     

EMD MP15DC -- 10 units
1500 horsepower; B-B trucks; 246,000 pounds operating weight

Road
Number
First
Number
Second
Number
Builder
Date
Builder
Number
Date To
1275 Series
1000 Series
Number
Date To
1000 Series
Notes
UP 1275 P&LE 1577   Jun 1974 73694-4 Feb 1985 UP 1000 Jun 1985 1
UP 1276 P&LE 1576   Jun 1974 73694-3 Feb 1985 UP 1001 Jun 1985  
UP 1277 P&LE 1575   Jun 1974 73694-2 Feb 1985 UP 1002 May 1985 1
UP 1278 P&LE 1583   Jul 1974 73694-10 Feb 1985 UP 1003 May 1985 1
UP 1279 P&LE 1581   Jul 1974 73694-8 Feb 1985 UP 1004 Jun 1985 1
UP 1280 P&LE 1580   Jul 1974 73694-7 Feb 1985 UP 1005 Jun 1985  
UP 1281 P&LE 1579   Jun 1974 73694-6 Feb 1985 UP 1006 May 1985  
UP 1282 P&LE 1574 UP 1574 Jun 1974 73694-1 19 Mar 1985 UP 1007 Jun 1985 2
UP 1283 P&LE 1578   Jul 1974 73694-5 Feb 1985 UP 1008 Jun 1985  
UP 1284 P&LE 1582   Jul 1974 73694-9 Feb 1985 UP 1009 May 1985 1

General Notes:

  1. Built as Pittsburgh & Lake Erie (P&LE) units; purchased second-hand by UP in December 1984; these 10 units were delivered to UP on 12 February 1985.
  2. UP 1284 (ex P&LE 1582) was the first of this group to be fully repainted to UP, completed on 18 April 1985; the other units received only UP initials and numbers in white stencils on their P&LE black paint schemes, retaining this scheme until painted full UP yellow and gray, with 1000 series numbers, in May and June 1985.
  3. UP added side handrails for improved safety.
  4. Assigned UP 1275-1284 series in February 1985, in number sequence after UP's SW10s 1200-1274; assigned UP 1000-1014 series in May 1985, with the pending arrival of five additional units, which became UP 1010-1014.
  5. (Read more about the UP 1000-1014 series)

Notes:

  1. UP 1275, 1277, 1278, 1279, 1284 operated in PL&E black paint with UP 1275-series numbers until each was repainted to full UP yellow and gray paint in late March and April 1985. (updates from Tim Vana via email dated October 8, 2013; and Zack Hilton via email dated February 1, 2015)
  2. UP 1282 operated as UP 1574, in P&LE black paint, from 19 March 1985 to June 1985, when it received full UP yellow and gray paint, and its new UP 1007 number.

 

MK Rail MK12G -- 2 units
1200 horsepower; B-B trucks; 250,000 pounds operating weight

Road
Number
Builder
Date
Builder
Number
Date
To UP
Date
Retired
UP 1298 Jul 1994 23227 12 Jul 1994 1 Jul 1998
UP 1299 Jul 1994 29003 12 Jul 1994 1 Jul 1998

General Notes:

  1. Fueled by natural gas; assigned to switching service in Los Angeles area from September 1994 to July 1998.
  2. UP 1298 was completed in November 1993, and remained at Boise for testing; UP 1299 was completed in late December 1993, and both units were unveiled in public ceremony by the newly organized MK Rail at Boise on January 13, 1994.
  3. UP 1298 was built using frame of retired Boston & Maine GP9 1729, frame number 7549-03, serial number 23227.
  4. UP 1299 was built using frame of retired Seaboard GP9 2358, frame number 5024-02, serial number 10548.
  5. Both units entered service at Salt Lake City, Utah, on July 12, 1994; transferred to Los Angeles on July 27, 1994; both units were out of service at Los Angeles until special fueling facilities could be completed during September 1994.
  6. Lease expired, and units returned to Motive Power Industries (successor to MK Rail), July 1, 1998; stored at Boise until 2005 when they were leased to BNSF for use on Los Angeles Junction Railway, along side the two other MK1200G units leased by AT&SF (later BN, then BNSF) to LAJ; in service as BNSF 1202 and 1203 until mid May 2012, then stored pending return of all four units to MK (Wabtec).
  7. Assigned UP 98 and 99 in December 1997, not renumbered prior to retirement.
  8. Sean Graham-White wrote the following in an article published in 2002 in CTC Board magazine: "M-K chose a straight LNG system rather than dual-fuel because they believed the latter is harder to control. One disadvantage was that the combustion technology available when the units were built resulted in reduced engine RPM (1500 vs. normally 1800) meaning a reduction in horsepower from 2000 to 1200."

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