Union Pacific Railroad

General Notes:

1. Original total of 50 C&NW units, numbered C&NW 5050-5099 (the first GP50s built); 48 units went to UP at merger; C&NW retired two units (C&NW 5051 and 5096) prior to the merger.
2. The above 15 units were renumbered to this UP 900-947 group in June 1995 through June 1996 (UP 904, ex C&NW 5055, was the first, completed on 23 June 1995, and UP 921, ex C&NW 5079, was the last, completed on 11 June 1996); the other 33 units were renumbered direct from their C&NW numbers to their numbers in the later UP 5510-5557 group, or the still later UP 1610-1657 group.
3. Assigned UP 900-947 in June 1995, 15 units renumbered; assigned UP 5510-5557 in June 1996, 13 units renumbered; assigned UP 1610-1657 in December 1999, 7 units renumbered.

General Notes:

1. Total of 15 WP units went to UP at merger, numbered WP 3545-3559; renumbered to UP 900-914 in February 1984 to November 1988; these six units (UP 900-905) were converted to road slug control units and renumbered to UP 3002-3007 in December 1990 and January 1991; other nine units (UP 906-914) remained in 900 series.
2. All 15 units placed into storage at Stockton in March 1983; in late March all stored units were moved from Stockton to Oroville, and in May they were moved to Portola; in August 1983 the units were moved to Salt Lake City, joining other WP units already in storage there; all 15 GP40-2s were leased to MP in December 1983 for service in Texas.
3. Above six units, as part of original 15-unit group, assigned UP 900-905 and 906-914 in December 1983; six units (UP 900-905) converted to road slug control units and renumbered UP 3002-3007 beginning in December 1990; assigned UP 1535-1540 in December 1999.
4. Individual unit histories:

Notes:

1. Renumbered to UP 3002-3007 in December 1990 and January 1991; converted to road slug control units in January and February 1991 to operate with road slugs, UP S301-S303, in local and heavy switching service; converted to road slug control units by Morrison Knudsen at Boise, Idaho; operated in the Hinkle, Oregon, area (as both 900 and 3000 series units) pending completion of all six GP40-2 road slug control units and the three road slugs, UP S301-S303; the road slugs were completed on 29 September 1990; the three 12-motor slug sets (GP40-2/slug/GP40-2) were placed in service in April 1991.
2. UP 900 was repainted and renumbered from WP 3545 to UP 900 on 26 May 1985, then operated as MP 900, in UP yellow paint, with Missouri Pacific lettering, from 11 June 1985 to 24 June 1987.
3. UP 901 was repainted and renumbered from WP 3546 to UP 901 on 22 December 1983, then operated as MP 901, in UP yellow paint, with Missouri Pacific lettering, from 19 November 1985 to 19 November 1988.
4. UP 904 was renumbered direct from WP 3549 to MP 904, in UP yellow paint with Missouri Pacific lettering, completed on 11 October 1985; then relettered to UP 904 on 17 June 1988.

General Notes:

1. Total of 15 WP units went to UP at merger, numbered WP 3545-3559; renumbered to UP 900-914 in February 1984 to November 1988; six units (UP 900-905) were converted to road slug control units and renumbered to UP 3002-3007 in December 1990 to February 1991; these nine units (UP 906-914) remained in 900 series.
2. All 15 units placed into storage at Stockton in March 1983; in late March all stored units were moved from Stockton to Oroville, and in May they were moved to Portola; in August 1983 the units were moved to Salt Lake City, joining other WP units already in storage there; all 15 GP40-2s were leased to MP in December 1983 for service in Texas.
3. Original 15-unit group, assigned UP 900-905 and UP 906-914 in December 1983; six units (UP 900-905) converted to road slug control units and renumbered UP 3002-3007 beginning in December 1990, leaving nine units in group.
4. Remaining nine-unit group (above, UP 906-914) assigned UP 2908-2916 in June 1995, two units (UP 2911 and 2915) renumbered; assigned UP 561-569 in July 1996, one unit (UP 568) renumbered; assigned UP 5315-5323 in March 1997, one unit (UP 5318) renumbered; assigned UP 5361-5369 in September 1997, one unit (UP 5368) renumbered; assigned UP 1461-1469 in December 1999, one unit renumbered (1461); assigned UP 9986-9994 in August 2001.

Notes:

1. UP 907 (ex WP 3552) operated as MP 907 in UP yellow and gray paint, with Missouri Pacific lettering, from 3 July 1985 to 14 June 1988.
2. UP 909 was renumbered to UP 2911 on 9 April 1996; renumbered to UP 5318 on 13 March 1997; renumbered to UP 9986 on 14 April 2006.
3. UP 913 was renumbered to UP 2915 on 17 April 1996; renumbered to UP 568 on 8 July 1996; renumbered to UP 5368 on 21 May 1999; renumbered to UP 9992 on 24 August 2004.

General Notes:

1. Total of 18 units to UP, numbered UP 2400-2417; leased from Helm Financial; rebuilt from GP38s and a GP38AC to GP38-3s by Motive Power Industries (Boise Locomotive Co.), Boise, Idaho.
2. Delivered to UP in November 1996 through January 1998 (UP 900, as UP 2400 was the first, delivered on 10 November 1996, and UP 917, as UP 2417 was the last, delivered on 9 January 1998).
3. The rebuilding to GP38-3s included fully reconditioned cabs, 3600 gallon fuel tanks, D78 traction motors and AR10 traction alternators, along with a Woodward CLC control system, and extended-range dynamic braking.
4. UP 915 operated as UP 1974 from September 1989 (leased from National Helm Leasing in March 1988 as NHL 7789, ex PC/CR 7789) until March 1994, when it was returned to Helm; used by Helm as part of its national lease fleet as Helm Leasing (HLLX) 3613; rebuilt to a GP38-3 and leased to UP as UP 2415.
5. UP model designation for these locomotives is GP38-3; MPI model designation is GP38M-3.
6. Individual unit histories:

Notes:

1. All 18 units retired on either 15 November or 26 November 2007 and returned to owner Helm Financial; leased by Helm to Kansas City Southern.
2. UP 900, 905, and 907 were seen at CEECO soon after their retirement by UP in November 2007; by May 2008, three freshly painted units identified as Savage Industries (SVGX) 8616, 8617, and 8618 were seen, and the three UP units were missing. The physical appearance of the three Savage units indicates that they are the former UP units.
3. UP 912 (ex UP 2412) is part of a confusing pair of locomotives rebuilt by Motive Power Industries, with the other unit being UP 1008 (ex UP 2508). Early reports, and previously published information, showed that both units were rebuilt from the same locomotive. As research progressed throughout the period between 1997 and 2003, locomotive historians were able to develop credible histories for both units. The above information is the best available, as of September 2006.
4. UP 917 (as earlier-number UP 2417, for unknown reasons) was retired on 13 October 2003 upon expiration of operating lease; returned to owner Helm Financial.

General Notes:

1. Total of two units to UP, numbered UP 2418 and 2419; leased from Helm Financial; rebuilt from GP38 and GP38AC to GP38-2s by VMV Enterprises, Paducah, Kentucky.
2. The rebuilding to GP38-2 included fully reconditioned cabs, 3600 gallon fuel tanks, D78 traction motors, and AR10 traction alternators, along with extended-range dynamic braking.
3. UP 918 operated as UP GP38 1979 from 17 February 1989 to 29 May 1998, when it was retired and sold to Helm Financial; built as CR 7795; to MKT on 13 March 1986; numbered MKT 322; renumbered to UP 1979 on 17 February 1989; rebuilt to a GP38-2, and leased to UP as UP 2418.
4. UP 919 operated as UP GP38AC 1995 from 7 March 1991 to 14 July 1997, when it was retired; sold to Helm Financial on 29 May 1998; built as ICG 9515; to MKT 339 in 1985; renumbered to UP 1995 on 7 March 1991; rebuilt to a GP38-2 and leased to UP as UP 2419.
5. Individual unit histories:

Notes:

1. UP 918 was renumbered to HLCX 918 on 12 March 2009.

General Notes:

1. Equipped with special high adhension HT-B trucks.
2. All six original units had a bolster centerline of 34 feet, 10-3/4 inches; the trucks had standard 40-inch wheels and a wheelbase of 117-1/2 inches; the noses were EMD's 88 inches long version.
3. Built as UP 9000-9005, renumbered to UP 90-95 in May and June 1985; renumbered to UP 954-959 in January 1989 through January 1990, UP 956 retired in November 1997; assigned UP 5500-5505 in 1997, two units renumbered in June and November 1997; assigned UP 9994-9998 in December 1999, none renumbered prior to retirement of five remaining units in May and June 2001.
4. Individual unit histories:

5. 	Road Number	First Number	Second Number	Date To 90 Series
   	UP 954	UP 9000	UP 90	28 May 1985
   	UP 955	UP 9001	UP 91	June 1985
   	UP 956	UP 9002	UP 92	June 1985
   	UP 957	UP 9003	UP 93	June 1985
   	UP 958	UP 9004	UP 94	June 1985
   	UP 959	UP 9005	UP 95	June 1985

Notes:

1. UP 954, 955, 957 sold to National Railway Equipment in (??) and moved to NRE at Mount Vernon, Illinois, during March 2002; rebuilt to GP38-2 standards by National Railway Equipment by June 2005, including replacement of the special HT-B high adhension trucks, with standard Blomberg-style M trucks; to Canadian Pacific for service, with the following numbers.

2. 	Road Number	Date Completed As GP38-2	CP Number
   	UP 954	Jun 2005	CP 4523
   	UP 955	Jun 2005	CP 4524
   	UP 957	Jun 2005	CP 4522

3. (CP 4522 and 4524 may have been swapped, meaning that either one could be ex UP 955 or ex UP 957) (At the same time ex SP 7231 became CP 4521, retired as UP 9999 in Dec 2001.) (email from Bill Miller dated August 29, 2005)
2. UP 956 (assigned UP 5502) was wrecked on 20 August 1997 at Bomber (MP 251.8, West Fort Worth), Texas; sold for scrap to Smith & Chambers in November 1997.