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Union Pacific Steam Locomotives, 1915-1962

Part 10, UP 2800 to UP 2911

This page was last updated on February 28, 2015.

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Roster Listing

UP 4-6-2 -- 19 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date
Vacated
UP 2800 UP 101 Baldwin 23341 Jan 1904 May 1936
UP 2801 UP 102 Baldwin 23348 Jan 1904 Oct 1927
UP 2802 UP 103 Baldwin 23360 Jan 1904 May 1940
UP 2803 UP 104 Baldwin 23361 Jan 1904 May 1940
UP 2804 UP 105 Baldwin 23362 Jan 1904 Aug 1929
UP 2805 UP 106 Baldwin 23376 Jan 1904 Aug 1929
UP 2806 UP 107 Baldwin 23383 Jan 1904 Oct 1928
UP 2807 UP 108 Baldwin 23395 Jan 1904 Dec 1933
UP 2808 UP 109 Baldwin 23403 Jan 1904 Dec 1930
UP 2809 UP 110 Baldwin 23404 Jan 1904 Sep 1934
UP 2810 UP 111 Baldwin 23416 Jan 1904 Oct 1928
UP 2811 UP 112 Baldwin 23417 Jan 1904 Aug 1929
UP 2812 UP 113 Baldwin 23431 Jan 1904 May 1936
UP 2813 UP 114 Baldwin 23456 Jan 1904 Dec 1933
UP 2814 UP 115 Baldwin 23460 Jan 1904 Oct 1927
UP 2815 UP 116 Baldwin 23476 Jan 1904 Dec 1937
UP 2816 UP 117 Baldwin 23482 Jan 1904 Dec 1933
UP 2817 UP 118 Baldwin 23491 Jan 1904 Oct 1928
UP 2818 UP 119 Baldwin 24004 Dec 1903 Sep 1934

Description:

CS Class: P-1
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 22x28 inches
Maximum Tractive Effort: 29,920 pounds
Weight on Drivers: 148,500 pounds
Weight in Working Order (Engine Only): 230,500 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
b. UP 2818, as UP 119, was displayed at the 1904 St. Louis Exposition
   

UP 4-6-2 -- 6 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Fuel Date
Vacated
UP 2819 UP 120 Baldwin 28534 Aug 1906 Coal Jul 1946
UP 2820 UP 121 Baldwin 28535 Aug 1906 Coal May 1936
UP 2821 UP 122 Baldwin 28549 Sep 1906 Coal Dec 1933
UP 2822 UP 123 Baldwin 28550 Sep 1906 Coal Nov 1927
UP 2823 UP 124 Baldwin 28593 Sep 1906 Coal May 1940
UP 2824 UP 125 Baldwin 28600 Sep 1906 Oil May 1947

Description:

CS Class: P-3
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 22x28 inches
Maximum Tractive Effort: 29,920 pounds
Weight on Drivers: 148,500 pounds
Weight in Working Order (Engine Only): 230,500 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: (see above)

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
   

UP 4-6-2 -- 4 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date
Vacated
UP 2825 UP 126 Baldwin 30744 Jun 1907 May 1928
UP 2826 UP 127 Baldwin 30745 Jun 1907 May 1936
UP 2827 UP 128 Baldwin 30760 Jun 1907 May 1940
UP 2828 UP 129 Baldwin 30761 Jun 1907 Dec 1937

Description:

CS Class: P-4
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 22x28 inches
Maximum Tractive Effort: 29,920 pounds
Weight on Drivers: 148,500 pounds
Weight in Working Order (Engine Only): 230,500 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
   

UP 4-6-2 -- 21 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Fuel Date
Vacated
UP 2829 UP 130 Baldwin 33642 Sep 1909 Coal Sep 1946
UP 2830 UP 131 Baldwin 33643 Sep 1909 Oil May 1940
UP 2831 UP 132 Baldwin 33644 Sep 1909 Coal Dec 1933
UP 2832 UP 133 Baldwin 33645 Sep 1909 Coal May 1936
UP 2833 UP 134 Baldwin 33646 Sep 1909 Coal Dec 1933
UP 2834 UP 135 Baldwin 33647 Sep 1909 Coal Dec 1933
UP 2835 UP 136 Baldwin 33674 Sep 1909 Coal Feb 1947
UP 2836 UP 137 Baldwin 33675 Sep 1909 Coal Dec 1930
UP 2837 UP 138 Baldwin 33676 Sep 1909 Coal Dec 1930
UP 2838 UP 139 Baldwin 33677 Sep 1909 Coal Dec 1933
UP 2839 UP 140 Baldwin 33681 Sep 1909 Coal Dec 1930
UP 2840 UP 141 Baldwin 33682 Sep 1909 Coal Aug 1929
UP 2841 UP 142 Baldwin 33683 Sep 1909 Coal Dec 1933
UP 2842 UP 143 Baldwin 33684 Sep 1909 Coal Dec 1936
UP 2843 UP 144 Baldwin 33685 Sep 1909 Coal Dec 1933
UP 2844 UP 145 Baldwin 33707 Sep 1909 Oil May 1947
UP 2845 UP 146 Baldwin 33719 Sep 1909 Coal Oct 1927
UP 2846 UP 147 Baldwin 33720 Sep 1909 Coal Dec 1937
UP 2847 UP 148 Baldwin 33748 Oct 1909 Coal Dec 1933
UP 2848 UP 149 Baldwin 33749 Oct 1909 Coal Oct 1927
UP 2849 UP 150 Baldwin 33750 Oct 1909 Coal Oct 1928

Description:

CS Class: P-5
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 22x28 inches
Maximum Tractive Effort: 29,920 pounds
Weight on Drivers: 148,500 pounds
Weight in Working Order (Engine Only): 230,500 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: (see above)

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
b. UP 2844, ex UP 145, is shown in the Baldwin builder record as number 33707; UP's equipment record (r3-1450) shows UP 2844 as number 33686; Gordon McCulloh's "A History of Union Pacific Steam" matches the UP record, which has been found to be in error.
   

UP 4-6-2 -- 10 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date
Vacated
UP 2850 UP 151 Baldwin 35958 Feb 1911 May 1940
UP 2851 UP 152 Baldwin 35959 Feb 1911 Mar 1952
UP 2852 UP 153 Baldwin 35960 Feb 1911 May 1947
UP 2853 UP 154 Baldwin 35978 Feb 1911 Feb 1947
UP 2854 UP 155 Baldwin 35979 Feb 1911 Aug 1946
UP 2855 UP 156 Baldwin 35980 Feb 1911 Aug 1946
UP 2856 UP 157 Baldwin 35986 Feb 1911 Feb 1952
UP 2857 UP 158 Baldwin 35987 Feb 1911 Aug 1946
UP 2858 UP 159 Baldwin 35988 Mar 1911 Jul 1946
UP 2859 UP 160 Baldwin 35989 Mar 1911 Aug 1946

Description:

CS Class: P-6
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 22x28 inches
Maximum Tractive Effort: 29,920 pounds
Weight on Drivers: 149,475 pounds
Weight in Working Order (Engine Only): 238,825 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal
 

UP 4-6-2 -- 10 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date
Vacated
UP 2860 UP 161 Schenectady 51598 Aug 1912 Dec 1954
UP 2861 UP 162 Schenectady 51599 Aug 1912 Dec 1947
UP 2862 UP 163 Schenectady 51600 Aug 1912 Nov 1947
UP 2863 UP 164 Schenectady 51601 Aug 1912 Aug 1952
UP 2864 UP 165 Schenectady 51602 Aug 1912 Jul 1950
UP 2865 UP 166 Schenectady 51603 Aug 1912 Feb 1952
UP 2866 UP 167 Schenectady 51604 Aug 1912 Mar 1952
UP 2867 UP 168 Schenectady 51605 Aug 1912 Feb 1952
UP 2868 UP 169 Schenectady 51606 Aug 1912 Mar 1952
UP 2869 UP 170 Schenectady 51607 Aug 1912 Mar 1952

Description:

CS Class: P-8
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 25x28 inches
Maximum Tractive Effort: 42,500 pounds
Weight on Drivers: 167,000 pounds
Weight in Working Order (Engine Only): 278,000 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
   

UP 4-6-2 -- 10 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Date
Vacated
UP 2870 UP 171 Brooks 53355 May 1913 Nov 1953
UP 2871 UP 172 Brooks 53356 May 1913 Nov 1947
UP 2872 UP 173 Brooks 53357 May 1913 Dec 1947
UP 2873 UP 174 Brooks 53358 May 1913 Feb 1948
UP 2874 UP 175 Brooks 53359 May 1913 Mar 1949
UP 2875 UP 176 Brooks 53360 May 1913 Dec 1947
UP 2876 UP 177 Brooks 53361 May 1913 Oct 1947
UP 2877 UP 178 Brooks 53362 May 1913 Nov 1947
UP 2878 UP 179 Brooks 53363 May 1913 Mar 1948
UP 2879 UP 180 Brooks 53364 May 1913 Nov 1947

Description:

CS Class: P-9
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 25x28 inches
Maximum Tractive Effort: 42,500 pounds
Weight on Drivers: 167,000 pounds
Weight in Working Order (Engine Only): 278,000 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
   

UP 4-6-2 -- 20 locomotives

1915 UP
Number
First
Number
Builder Builder
Number
Date
Built
Fuel Date
Vacated
UP 2880 UP 181 Lima 1424 Sep 1914 Coal Dec 1947
UP 2881 UP 182 Lima 1425 Sep 1914 Oil Mar 1949
UP 2882 UP 183 Lima 1426 Sep 1914 Coal May 1947
UP 2883 UP 184 Lima 1427 Sep 1914 Coal Oct 1947
UP 2884 UP 185 Lima 1428 Sep 1914 Coal Oct 1947
UP 2885 UP 186 Lima 1429 Sep 1914 Oil May 1947
UP 2886 UP 187 Lima 1430 Sep 1914 Oil May 1947
UP 2887 UP 188 Lima 1431 Sep 1914 Oil May 1947
UP 2888 UP 189 Lima 1432 Sep 1914 Coal Sep 1955
UP 2889 UP 190 Lima 1433 Sep 1914 Coal Feb 1954
UP 2890 UP 191 Lima 1434 Oct 1914 Coal Mar 1948
UP 2891 UP 192 Lima 1435 Oct 1914 Coal Oct 1947
UP 2892 UP 193 Lima 1436 Oct 1914 Coal May 1947
UP 2893 UP 194 Lima 1437 Oct 1914 Oil Nov 1947
UP 2894 UP 195 Lima 1438 Oct 1914 Oil Aug 1954
UP 2895 UP 196 Lima 1439 Oct 1914 Coal Dec 1947
UP 2896 UP 197 Lima 1440 Oct 1914 Coal Oct 1947
UP 2897 UP 198 Lima 1441 Oct 1914 Coal Jan 1956
UP 2898 UP 199 Lima 1442 Oct 1914 Coal Mar 1947
UP 2899 UP 100 Lima 1443 Oct 1914 Coal Oct 1953

Description:

CS Class: P-10
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 25x28 inches
Maximum Tractive Effort: 42,500 pounds
Weight on Drivers: 167,000 pounds
Weight in Working Order (Engine Only): 278,000 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: (see above)

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
   

UP 4-6-2 -- 10 locomotives

Road
Number
Builder Builder
Number
Date
Built
Date
Vacated
UP 2900 Baldwin 53468 Sep 1920 Oct 1947
UP 2901 Baldwin 53510 Sep 1920 Dec 1947
UP 2902 Baldwin 53529 Sep 1920 Dec 1947
UP 2903 Baldwin 53530 Sep 1920 Nov 1947
UP 2904 Baldwin 53577 Sep 1920 Oct 1947
UP 2905 Baldwin 53618 Oct 1920 Oct 1947
UP 2906 Baldwin 53619 Oct 1920 Jul 1951
UP 2907 Baldwin 53712 Oct 1920 Jul 1947
UP 2908 Baldwin 53713 Oct 1920 Oct 1954
UP 2909 Baldwin 53761 Oct 1920 Mar 1948

Description:

CS Class: P-13
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 25x28 inches
Maximum Tractive Effort: 42,500 pounds
Weight on Drivers: 167,000 pounds (UP 2906, streamlined, was 193,450 pounds)
Weight in Working Order (Engine Only): 278,000 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
b. UP 2906 was equipped with roller bearings in 1936 and streamlined for service on "The 49er" train in 1937
   

UP 4-6-2 -- 1 locomotive

1928 UP
Number
First
Number
Second
Number
Date To
UP
Builder Builder
Number
Date
Built
Date
Vacated
UP 2910 OSL 910 OSL 3124 1928 ALCO-Brooks 53365 Jun 1913 Mar 1953

Description:

CS Class: P-9
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 25x28 inches
Maximum Tractive Effort: 42,500 pounds
Weight on Drivers: 167,000 pounds
Weight in Working Order (Engine Only): 278,000 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
b. UP 2910 was built as OSL 910 in 1913; to OSL 3124 in 1915; to UP 2910 in 1928; vacated in 1953
   

UP 4-6-2 -- 1 locomotive

1928 UP
Number
First
Number
Second
Number
Date To
UP
Builder Builder
Number
Date
Built
Date
Vacated
UP 2911 OSL 916 OSL 3130 1928 Lima 1445 Oct 1914 Nov 1953

Description:

CS Class: P-10
Cabside Class: P-77
Drive Wheel Diameter: 77 inches
Cylinders: 25x28 inches
Maximum Tractive Effort: 42,500 pounds
Weight on Drivers: 167,000 pounds
Weight in Working Order (Engine Only): 278,000 pounds
Weight in Working Order (Engine and Tender): (varied due to different tender styles)
Fuel: Coal

General Notes:

a. Classes P-1 through P-6 were classed as Light Pacific; classes P-7 through P-13 were classed as Heavy Pacific
b. UP 2911 was built as OSL 916 in 1914; to OSL 3130 in 1915; to UP 2911 in 1928; vacated in 1953

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