Union Pacific Diesels On LA&SL
Index For This Page
This page was last updated on November 20, 2024.
(Return to Union Pacific Index Page)
Special Rules
September 1, 1947
The motive power ratings from the special rules issue, Los Angeles Division Special Rules No. 7, dated September 1, 1947, show the ratings for the first EMD F3 diesels, delivered in May 1947.
June 15, 1948
The earliest documentation for diesel locomotive motive power ratings on the LA&SL comes from UP California Division Special Rules No. 8, dated June 15, 1948. This was less than six months after the California Division was created in February 1948, from the previous Los Angeles Division. The organizational changes were needed to accommodate the almost complete dieselization, by the end of 1948, of the railroad south and west of Salt Lake City, and to some degree, everything west of Green River.
Art Riordan wrote in the introduction of the UPHS reprint of the entire set of UP employee timetables, dated February 29, 1948.
A major realignment and consolidation of divisions had just taken place and effective February 29, 1948, the Union Pacific eliminated two divisions. The Colorado Division was spun off into the Kansas and Wyoming Divisions and the Washington Division was consolidated with the Oregon Division. At the same time, the company started anew the sequential numbers for each division with No. 1 (with the exception of the Bridge Subdivision.) It is interesting to note that these divisions created in 1948 remained basically unchanged until about 1980.
On January 1, 1948 the Utah Division was cut back to include just the former OSL north from Salt Lake City to McCammon, Idaho. The California Division was extended to Salt Lake City, with the Salt Lake City to Lynndyl (the old Utah Southern) line being designated as the First Subdivision, later known as the Provo Subdivision, and the newer Salt Lake City to Lynndyl Leamington Cutoff being designated as the Second Subdivision. The Lynndyl to Milford line became the Third Subdivision, and the Milford to Caliente line became the Fourth Subdivision. All as part of the expanded California Division.
At the same time, the Utah Division was expanded east to Green River, reducing the size of the Wyoming Division. The Utah Division was also expanded north to Pocatello, and on to Butte, cutting back the Idaho Division to Pocatello. New No. 1 timetables for each division were issued on February 29, 1948 reflecting these changes.
August 1, 1949
Utah Division Special Rules No. 9, dated August 1, 1949, continued to show steam locomotives.
October 1, 1949
To show how fast the dieselization of the LA&SL took place, in the next special rules issue, California Division Special Rules No. 9, dated October 1, 1949, the listings for steam locomotives were removed completely. By this time the California Division had been cut back with its north end at Caliente.
###