Union Pacific Railroad

General Notes:

1. UP 1000 was built as Electro Motive Corp. NW2 demonstrator 889; built for demonstration service on UP; sold to UP March 1940. (During the same time period in October 1939 to March 1940, UP also tested EMC's SW1 demonstrator 911. After returning to EMC, the SW1 was sold to Great Lakes Steel in November 1940.)
2. Built under EMC order number E308 (shared with UP 1001-1009).

Notes:

1. UP 1000 was sold to Stockton Terminal & Eastern Railroad 1000, Stockton, California, in July 1966; sold to WP in October 1968, rebuilt and placed in service as WP 607 in June 1969; sold to Sacramento Northern 607 in May 1973; assigned UP 1886 after December 1982 UP/WP merger but never carried that number; retired, again in September 1983; donated in May 1984 to tourist operation Deer Creek Scenic Railway, contract operator of the State of Utah-owned former D&RGW Heber Provo Canyon Branch (usually known as the Heber Creeper), delivered in early August 1984, repainted back to original UP black switcher paint scheme, locomotive removed from service in 1986; private operation of Heber Creeper shut down in January 1991; sold to Nevada State Railroad Museum in 1992, moved to Boulder, Nevada, in February 1993; repainted and relettered to Boulder City Southern; relettered to Nevada Southern.

General Notes:

1. UP 1025-1035 were part of an order for 25 units, to be numbered UP 1025-1049; only 11 units were delivered; remainder of order (UP 1036-1049, 14 units) was canceled by the War Production Board in July 1942. UP numbers 1036-1049 were later used on additional NW2s.
2. UP 1036-1054 were the second units to carry these numbers; the same numbers were first carried by Alco S-2s, 1036-1054, which were renumbered to the 1100-series in 1945.
3. UP 1055-1060 were the second group of units to carry these numbers; the same numbers were first carried by Baldwin VO-1000s, which were renumbered to the 1200-series in 1945.
4. UP 1001-1075 were delivered in UP's early black switcher paint scheme, repainted to yellow in late 1947.
5. UP 1006-1011, 1016, 1018-1021, 1027-1029, 1039, 1040, 1046-1049, 1052-1054, 1056-1058, 1060-1063, 1070, 1081, and 1085 (33 units) were assigned to the South-Central District (Salt Lake City, Las Vegas, and Los Angeles) during early 1953. During February and March 1953 each unit had the D.S. (Diesel Switch) prefix removed from its 1000-series number.
6. UP 1088-1095 had 253,000 pounds operating weight and 65:12 gear ratio; several were later changed to 62:15 gear ratio.
7. UP 1001-1009 were built under EMC order number E308 (shared with 1000).
8. UP 1010-1014 were built on EMD order number E328; delivered in UP's black switcher paint scheme.
9. UP 1015-1024 were built on EMD order number E371; delivered in UP's black switcher paint scheme.
10. UP 1025-1035 were built on EMD order number E476; delivered in UP's black switcher paint scheme.
11. UP 1036-1050 were built on EMD order number E683; delivered in UP's black switcher paint scheme.
12. UP 1051-1075 were built on EMD order number E820.
13. UP 1076-1095 were built on EMD order number E998.

Notes:

1. UP 1001 was sold to Stockton Terminal & Eastern Railroad 1001, Stockton, California, in July 1966; sold to WP in October 1968, rebuilt and placed in service as WP 608 in February 1969; assigned UP 1887 after December 1982 UP/WP merger but never carried that number; retired again in September 1983; donated to Feather River Rail Society in December 1984.
2. UP 1002 was traded to EMD in April 1972.
3. UP 1003 was sold to Chrome Crankshaft Co., Chicago, Illinois, in June 1977.
4. UP 1004 was sold to Precision National Corp., Mount Vernon, Illinois, in October 1978.
5. UP 1005 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1978.
6. UP 1006 was sold to Bargains Galore, Vancouver, Washington, 1979; sold to Diesel Electric Service, St. Paul, Minn.
7. UP 1007 was briefly renumbered to UP 7007, after retired but awaiting disposition, to avoid conflict with newly arrived former P&LE MP15s; sold for scrap to Erman Corp., Turner, Kansas, in June 1985; in service as Erman-Howell in-plant switcher, with 1007 number, as late as 1990.
8. UP 1008 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1978.
9. UP 1009 was sold to Precision National Corp., Mount Vernon, Illinois, in November 1973, rebuilt and sold in May 1974 to U.S. Steel LM-4, Baytown, Texas, out of service by May 1988. (U. S. Steel Baytown report in Locomotive Notes II, Number 119, page 1)
10. UP 1010 was traded to EMD in November 1973.
11. UP 1011 was donated to State of Utah in August 1977, preserved at Heber City, Utah.
12. UP 1012 was sold for scrap to Azcon Hyman Michaels, Alton, Illinois, in December 1979.
13. UP 1013 was sold for scrap to Naporano Iron & Metal, Newark, N.J., 20 September 1979.
14. UP 1014 was traded to EMD in March 1972.
15. UP 1015 was sold to Precision National Corp., Mount Vernon, Illinois, in August 1976.
16. UP 1016 was traded to EMD in May 1972.
17. UP 1017 was sold to Bargains Galore, Vancouver, Washington, 16 January 1980; sold to Diesel Electric Service, St. Paul, Minn.
18. UP 1018 was sold to Chrome Crankshaft Co., Chicago, Illinois, in November 1978; rebuilt at CRI&P-Silvis; sold to Jim Walter Resources 55, Birmingham, Alabama, in April 1980; sold to Jefferson Warrior Railroad 55, same location.
19. UP 1019 was sold to Bargains Galore, Vancouver, Washington, 16 January 1980; sold to Diesel Electric Service, St. Paul, Minnesota; sold to Tradewater Railway.
20. UP 1020 was wrecked (crushed cab) on 21 October 1972 at Las Vegas, Nevada; scrapped by UP Omaha, Nebraska, in March 1973.
21. UP 1021 was sold to Precision National Corp., Mount Vernon, Illinois, in July 1976.
22. UP 1022 was wrecked; sold to Inter-City Metals, Portland, Oregon, in February 1979; sold to Agrico 2, Williams, Oklahoma, later to Agrico AAX2 at Verdegris, Oklahoma, by May 1980.
23. UP 1023 was sold Chrome Crankshaft Co., Chicago, Illinois, in June 1977, rebuilt by GE Chamblee (Atlanta), Ga.; sold to Altos Hornos de Mexico 154 in November 1977.
24. UP 1024 was sold for scrap to Erman Corp., Turner, Kansas, in June 1985; used as plant switcher EC-2 at company's metal salvage yard, later scrapped.
25. UP 1025 was sold to Bargains Galore, Vancouver, Washington, in July 1980; scrapped by Joseph Simon & Sons, Tacoma, Washington, in September 1980.
26. UP 1026 was sold to Bargains Galore, Vancouver, Washington, 20 July 1981, shipped to Diesel Electric Service, St. Paul, Minn.
27. UP 1027 was sold to Bargains Galore, Vancouver, Washington, in September 1980; seen in transit at Sioux City, Iowa, in early September 1982.
28. UP 1028 was wrecked January 1975 at Los Angeles, California; scrapped by UP at Omaha, Nebraska.
29. UP 1029 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1971; rebuilt and painted solid yellow and leased as Precision 1029 during early 1979 to Atlantic & Gulf Stevedores; sold to Agrico 182, Big Bend, Fla, in 1982.
30. UP 1030 was sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois, 8 January 1988.
31. UP 1031 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1981.
32. UP 1032 was sold for scrap to General Metals, Tacoma, Washington, in March 1983.
33. UP 1033 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1976.
34. UP 1034 was sold to Chrome Crankshaft Co., Chicago, Illinois, in February 1977, rebuilt and sold to Tuscola & Saginaw Bay Railway 1977, "Big Chief", Vasser, Michigan in December 1977.
35. UP 1035 was sold to Industrial Maintenance Service, 30 September 1976, rebuilt with close clearance cab and sold to Ford Motor Company (River Rouge Plant) 12001, Detroit, Mich.
36. UP 1036 was sold to Chrome Crankshaft Co., Chicago, Illinois, in February 1977, rebuilt by CRI&P-Silvis and sold to Canton Railroad 52, Canton (Baltimore), Md., in January 1978, painted dark blue with yellow lettering.
37. UP 1037 was sold for scrap to Aaron Ferer and Sons, Omaha, Nebraska, 8 January 1988.
38. UP 1038 was traded to EMD in March 1972.
39. UP 1039 was sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois, 8 January 1988.
40. UP 1040 was sold for scrap to Aaron Ferer and Sons, Omaha, Nebraska, 8 January 1988.
41. UP 1041 was sold to Peaker Services, Brighton, Michigan, in January 1980.
42. UP 1042 was sold for scrap to Erman Corp., Turner, Kansas, in August 1985.
43. UP 1043 was sold to Pacific States Cast Iron Pipe Co., Provo, Utah, 10 March 1985.
44. UP 1044 was sold to Bargains Galore, Vancouver, Washington, 28 April 1981; scrapped by Joseph Simon & Sons, Tacoma, Washington.
45. UP 1045 was sold to Precision National Corp., Mount Vernon, Illinois, in July 1976, rebuilt and sold to Monongahela Connecting Railroad 432, Pittsburgh, Pa., in June 1977.
46. UP 1046 was traded to EMD in March 1972.
47. UP 1047 was sold to Precision National Corp., Mount Vernon, Illinois, in February 1980.
48. UP 1048 was sold to Pacific Fruit Express, Roseville, California, 1048 in October 1974; PFE's Roseville facility shut down on 31 December 1979; PFE 1048 transferred to the PFE facility at Tucson, Ariz., in February 1980; retired in 1998 and sold to Commanche Crossing Historic Railroad, Strasburg, Colorado, in December 1998. Still there as of January 26, 2020, stored on an unconnected spur.
49. UP 1049 was sold for scrap to Durbano, Ogden, Utah, 1 October 1984.
50. UP 1050 was scrapped by UP at Omaha, Nebraska, in July 1980.
51. UP 1051 was sold for scrap to Erman Corp., Turner, Kansas, in March 1983.
52. UP 1052 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1978; sold to Montgomery Maintenance & Heavy Equipment 791; leased to Jackson County Grain Terminal, Pascagoula, Miss., in June 1980.
53. UP 1053 was sold to Industrial Maintenance Services, Hammond, Ind., in May 1972; rebuilt and sold to Elgin, Joliet & Eastern 448, Joliet, Illinois, in November 1972.
54. UP 1054 was sold for scrap to Erman Corp., Turner, Kansas, in September 1982.
55. UP 1055 was sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois, 8 January 1988.
56. UP 1056 was sold to Chrome Crankshaft Co., Chicago, Illinois, in November 1978.
57. UP 1057 was traded to EMD in March 1972.
58. UP 1058 was sold to Chrome Crankshaft Co., Chicago, Illinois, in June 1977; rebuilt and sold to U.S. Steel Fairless Works 30, Fairless Hills, Pa., in July 1978.
59. UP 1059 was sold to Bargains Galore, Vancouver, Washington, 28 April 1981; scrapped by Joseph Simon & Sons, Tacoma, Washington.
60. UP 1060 was traded to EMD in March 1972.
61. UP 1061 was sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois, 8 January 1988.
62. UP 1062 was sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois, 8 January 1988.
63. UP 1063 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1980.
64. UP 1064 was sold to Precision National Corp., Mount Vernon, Illinois, 27 March 1981.
65. UP 1065 was sold to Precision National Corp., Mount Vernon, Illinois, in May 1978.
66. UP 1066 was sold to Precision National Corp., Mount Vernon, Illinois, in July 1976.
67. UP 1067 was sold to Industrial Maintenance Services, Hammond, Ind., in May 1972; rebuilt and sold to Elgin, Joliet & Eastern 449, Joliet, Illinois, in June 1973.
68. UP 1068 was sold to Chrome Crankshaft Co., Chicago, Illinois, in November 1978; rebuilt by CRI&P-Silvis in March 1980; sold to Jim Walter Resources 56, Birmingham, Alabama, in April 1980; sold to Jefferson Warrior Railroad 56, same location.
69. UP 1069 was sold to Chrome Crankshaft Co., Chicago, Illinois, in November 1978.
70. UP 1070 was traded to EMD in February 1972.
71. UP 1071 was sold Chrome Crankshaft Co., Chicago, Illinois, in June 1977; rebuilt by GE-Chamblee (Atlanta), Ga.; sold to Altos Hornos de Mexico 155 in November 1977.
72. UP 1072 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1978.
73. UP 1073 was traded to EMD in March 1972.
74. UP 1074 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1978.
75. UP 1075 was sold to Peaker Services, Brighton, Michigan, 4 December 1979; rebuilt to Peaker number 1; sold to Marinette, Tomahawk & Western Railroad 81, Tomahawk, Wis.; sold to Nekoosa Paper Products 26, Port Edwards, Wisconsin.
76. UP 1076 was sold to Precision National Corp., Mount Vernon, Illinois, 2 February 1981.
77. UP 1077 was sold to Bargains Galore, Vancouver, Washington, 1 October 1984; scrapped by Joseph Simon & Sons, Tacoma, Washington, in December 1984.
78. UP 1078 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1980.
79. UP 1079 was traded to EMD in February 1972.
80. UP 1080 was sold for scrap to Erman Corp., Turner, Kansas, in August 1985.
81. UP 1081 was sold for scrap to Southwest Railroad Car Parts, Longview, Texas, 8 January 1988.
82. UP 1082 was sold for scrap to Erman Corp., Turner, Kansas, in May 1980.
83. UP 1083 was sold for scrap to Azcon Hyman Michaels, Alton, Illinois, 9 October 1981.
84. UP 1084 was traded to EMD in March 1972.
85. UP 1085 was sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois, 8 January 1988.
86. UP 1086 was sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois, 8 January 1988.
87. UP 1087 was sold to Bargains Galore, Vancouver, Washington, 30 January 1981; sold to Rail Car Corp., Colorado Springs, Colorado; lettered for Cadillac & Lake City; sold to Rawhide Shortline 1087, Rawhide, Colorado, in July 1982.
88. UP 1088 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1978.
89. UP 1089 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1976.
90. UP 1090 was sold to Illinois Central Gulf Railroad in September 1980.
91. UP 1091 was sold for scrap to Southwest Railroad Car Parts, Longview, Texas, 8 January 1988.
92. UP 1092 was sold for scrap to Erman Corp., Turner, Kansas, in August 1985.
93. UP 1093 was sold for scrap to Azcon Hyman Michaels, Alton, Illinois, in August 1980.
94. UP 1094 was sold to Bargains Galore, Vancouver, Washington, 27 February 1986; scrapped by General Metals, Tacoma, Washington, in May 1986.
95. UP 1095 was sold for scrap to Erman Corp., Turner, Kansas, in August 1985.

General Notes:

1. UP 1036-1054 were ordered and delivered to UP in lieu of additional EMD NW2 switchers. UP had ordered 25 NW2s in August 1941. On 7 July 1942, after 11 of the 25 units were delivered, the remaining 14 units were canceled by the War Production Board. UP's requirement for additional yard switchers was filled a year later with these 19 Alco S-2s.
2. UP 1036-1054 delivered in UP's black switcher paint scheme, repainted to yellow in late 1947, after being renumbered to the 1100-series.
3. UP 1036-1039 had Alco order number S-1883.
4. UP 1040-1048 had Alco order number S-1914.
5. UP 1049-1054 had Alco order number S-1930.

General Notes:

1. UP 1055-1060 were numbered in reverse order of their builder's number sequence for unknown reasons; renumbered to UP 1200-1205 in builder's number sequence in May 1945.
2. UP 1055-1060 delivered in UP's black switcher paint scheme, repainted to yellow in late 1947, after being renumbered to the 1200-series.
3. UP 1055, 1056 had Baldwin order number 43506-A.
4. UP 1057-1059 had Baldwin order number 43502-B.
5. UP 1060 had Baldwin order number 42530-J.

General Notes:

1. UP 1000-1009 were built as Pittsburgh & Lake Erie (P&LE) units; purchased second-hand by UP in December 1984; delivered in mid February 1985, renumbered to UP 1275-1284 series in February and March 1985, renumbered to UP 1000-1009 series in May and June 1985.
2. UP 1010-1014 were built as Pittsburgh & Lake Erie (P&LE) units; purchased second-hand by UP in December 1984; delivered in late April 1985; numbered UP 1010-1014 in May and June 1985.
3. Renumbered to UP 1300-1314 series in May to December 1987 (UP 1001 was the first, completed as UP 1301 on 26 May 1987, UP 1011 was the last, completed as UP 1311 on 14 December 1987).
4. UP added side handrails for improved safety.
5. Individual unit histories:

General Notes:

1. UP 1100-1118 built as 1036-1054; Renumbered to UP 1100-1153 in May and June 1945 to make room for additional EMD NW2s.
2. UP 1100-1118, as UP 1036-1054, were delivered in UP's early black switcher paint scheme, repainted to yellow in late 1947.
3. UP 1100, as 1036, was delivered to UP on 22 September 1943.
4. UP 1126 and 1128 were equipped for multiple unit operation.
5. UP 1105, 1112, 1114, 1119, 1122, 1126, 1147, 1148, and 1153 (nine units) were assigned to the South-Central District (Salt Lake City, Las Vegas, and Los Angeles) during early 1953. During February and March 1953 each unit had the D.S. (Diesel Switch) prefix removed from its 1100-series number.
6. Alco order numbers:

General Notes:

1. UP 1154-1198 were equipped for multiple unit operation.
2. UP 1195 was equipped with snowplow pilot and number boards for branchline service; used on the Kearney (Nebraska) Branch between December 1958 and June 1970.
3. UP 1184, 1185, 1191, and 1194 (four units) were assigned to the South-Central District (Salt Lake City, Las Vegas, and Los Angeles) during early 1953. During February and March 1953 each unit had the D.S. (Diesel Switch) prefix removed from its 1100-series number.
4. Alco order numbers:

Notes:

1. UP 1166 was sold to Chrome Crankshaft Co., Chicago, Illinois, in March 1972; sold to Stauffer Chemical 1166, Silver Bow, Montana, in May 1972; sold to Scoular Grain Co.
2. UP 1171 was sold to Chrome Crankshaft Co., Chicago, Illinois, in March 1972; sold to Yreka Western Railroad 1171, Yreka, California, in July 1972.
3. UP 1172 was sold to Chrome Crankshaft Co., Chicago, Illinois, in March 1972; sold to Yreka Western Railroad 1172, Yreka, California, in July 1972; sold to Pend Oreille Valley Railroad 101, Newport, Washington, in November 1979.

General Notes:

1. UP 1180-1189 were built with 235,000 pounds operating weight and 156,600 pounds weight on drivers.
2. UP 1182, 1183, 1186, 1187, 1188, and 1189 were re-ballasted to 274,000 pounds operating weight and 193,900 pounds weight on drivers, which included an additional 800 gallon fuel tank.
3. UP 1184 and 1185 were re-ballasted to 264,400 pounds operating weight and 188,100 pounds weight on drivers.
4. UP 1181, 1182, 1187, and 1189 were equipped for multiple unit operation.
5. UP 1185 was used briefly in helper service on Cajon Pass in Southern California during 1949.
6. UP 1180 had Alco order number S-3053 (shared with UP RS-2s 1193, 1194)
7. UP 1181-1189 had Alco order number S-3063.

General Notes:

1. UP 1190 was built as Alco demonstrator 1190, in UP yellow and gray paint; sold to UP on 19 March 1948.
2. UP 1190 had Alco order nnumber S-3024.

General Notes:

1. Alco order numbers: