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Union Pacific Diesel Roster (1934-2009)

Index For This Page

This page was last updated on February 10, 2014.

(Return to Union Pacific Diesel Index Page)

(Click here for updates.)

Modern Era Roster Data (2000-2009)

Modern Era Index(all units 2000-2009) An index page to Union Pacific's diesel locomotive fleet during the Modern Era that began in the year 2000, stemming from the December 1999 renumber plan that called for the general renumbering of over 3,700 locomotives to accommodate the arrival of 1,000 SD70Ms beginning in 2000. Includes all new units and units retired between 2000 and 2009. (Will not be updated after June 1, 2009)

UPY Units — An index page to all of Union Pacific's recent, beginning in 2000, UPY (Union Pacific Yard) units, including the UPY 900 series yard slugs and road slugs.

Heritage Fleet Diesel Locomotives — Information about the diesel locomotives UP has kept to honor its heritage, includes information about UP 949, 951, 963B and 6936.

Earlier Roster Data

Late Merger Era Index(1995-1999) An index page to Union Pacific's diesel locomotive fleet during the 1995-1999 Late Merger Era, including the UP control of C&NW in 1995, and control of SP (including D&RGW and Cotton Belt) in 1996.

Early Merger Era Index(1983-1994) An index page to Union Pacific's diesel locomotive fleet during the 1983-1994 Early Merger Era, including the UP control of MP and WP in 1983, and control of MKT in 1988.

Classic Era Index(1934-1982) An index page to Union Pacific's diesel locomotive fleet during the 1934-1982 Classic Era.

For an excellent photo-illustrated roster of UP classic era diesel locomotives, see Diesels of the Union Pacific, The Classic Era, Volumes 1 and 2:

Volume 1 has 224 pages; 308 black & white photographs; abbreviated bibliography; 14-page 1934-1982 timeline of Union Pacific diesel locomotives; four-page summary of road numbers, with years in service; four-page summary of locomotive model quantities; 40-page history of Union Pacific dieselization; 153-page unit-by-unit roster of Union Pacific diesel and turbine locomotives numbered from 1 to 999. (Withers Publishing Co.) (ISBN 1-881411-24-9)

Volume 2 has 176 pages; 257 black & white photographs; 73 color photographs; 12-page summary of Union Pacific diesel locomotive paint schemes and lettering for the 1934-1982 era; abbreviated bibliography; four-page summary of road numbers, with years in service; 129-page unit-by-unit roster of Union Pacific diesel locomotives numbered from 1000 to 903999. (Withers Publishing Co.) (ISBN 1-881411-29-X)

Yard Slugs, Road Slugs, and Miscellaneous Units — An index page to all of Union Pacific's yard slugs, road slugs and other miscellaneous units prior to the UPY series. Includes the GE 44 ton unit and the all-electric E-100.

Streamliner Locomotives(1934-1953) An index page to Union Pacific's Streamliner locomotives, in service 1934-1953.

Additional Information

General Roster Notes — An web page with information about these on-line rosters, and the model designations used, along with a brief discussion of how builder dates are presented.

Diesel Roster Changes — An index page for changes to UP's diesel locomotive roster, from 1996 through 2000. (Please note that all of these changes have all been incorporated into the roster listings themselves.)

Switchers and Slugs — An index page of edited and updated text originally used in 1996 for the publication of "Union Pacific Switchers and Slugs", authored by Don Strack and published in 1996 by Withers Publishing Co.

The "Union Pacific Switchers and Slugs" book has 116 pages; 238 black and white photos; 37 color photos; and full rosters of all of UP's EMD, Alco, Baldwin, and GE switchers, plus its yard slugs and road slugs, and is still available from the publisher. (ISBN 1-881411-11-7)

"Serves All The West" — A history of Union Pacific dieselization, from 1934 to 1982. An edited and updated version of the text originally used in 1999 for Diesels of the Union Pacific, 1934-1982, The Classic Era, Volume 1 (ISBN 1-881411-24-9), and Diesels of the Union Pacific, 1934-1982, The Classic Era, Volume 2 (ISBN 1-881411-29-X), both by Don Strack (Withers Publishing Co., 1999 and 2005)

(These two books, which have hundreds of photos, are still available from the publisher. Click here for more information, and here for a link to the book at Withers Publishing.)

Motive Power Timeline

Full chronologies for Union Pacific's motive power, from 1915 to 2001:

Model Summary

Merger Partners

Rock Island to UP Index — An index page to the former Chicago, Rock Island & Pacific (Rock Island) locomotives that were returned to UP in April 1980 upon the shut down of the Rock Island due to its bankruptcy. Included are units assigned new UP road numbers, and units that were not assigned new UP road numbers.

MP to UP Index — An index page to the former Missouri Pacific locomotives that came to UP during the 1983 control of MP by UP, including MP units both assigned new UP road numbers, and MP units that were not assigned new UP road numbers.

WP to UP Index — An index page to the former Western Pacific locomotives that came to UP during the 1983 control of WP by UP. (The roster of all former WP units is also on this same page.)

MKT to UP Index — An index page to the former Missouri Kansas Texas locomotives that came to UP during the 1988 control of MKT by UP. (The roster of all former MKT units is also on this same page.)

C&NW to UP Index — An index page to the former Chicago & North Western locomotives that came to UP during the 1995 control of C&NW by UP, including C&NW units both assigned new UP road numbers, and C&NW units that were not assigned new UP road numbers. (Click here for an all-time, on-line C&NW diesel roster)

SP to UP Index — An index page to the former Southern Pacific, Cotton Belt (SSW), and Denver & Rio Grande Western locomotives that came to UP during the 1996 control of SP by UP, including SP, SSW, and D&RGW units both assigned new UP road numbers, and SP, SSW, and D&RGW units that were not assigned new UP road numbers.

Steam Locomotive Roster

Gordon McCulloh and I have pooled our resources and put together an all-time roster listing of Union Pacific's steam locomotives, from 1864 to 1962, including all of the road's predecessors and subsidiaries of the same time period.

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