Union Pacific 4466

Union Pacific 4466
Type and origin
Power type	Steam
Builder	Lima Locomotive Works
Serial number	6003
Build date	October, 1920
Specifications
Configuration	0-6-0
Gauge	4 ft 8 1⁄2 in (1,435 mm)
Driver diameter	51 in (1,295 mm)
Weight on drivers	159,000 lb (72,000 kg)
Locomotive weight	159,000 lb (72,000 kg)
Fuel type	Coal
Cylinder size	21 in (530 mm) dia × 26 in (660 mm) stroke
Performance figures
Tractive effort	34,400 lbf (153,000 N), 78,000 lbf (350,000 N) with booster
Career
Operator(s)	Union Pacific
Class	S-6
Number(s)	4466
Retired	1999
Restored	1984
Current owner	California State Railroad Museum
Disposition	Display

Union Pacific 4466 is an 0-6-0 type steam locomotive built in October 1920 for the Union Pacific Railroad (UP) to perform switching chores and transfer runs. 4466 spent most of its career in Cheyenne, Wyoming, as a shop switcher and was the UP Cheyenne Shop's last steam shop switcher. After its stint in Cheyenne, 4466 was transferred to Grand Island, Nebraska, remaining there until 1973.^[1] it was donated to California State Railroad Museum in 1978. In 1984, it was restored to service and pulled museum excursions. In 1986, 4466 ventured to Vancouver, British Columbia, to be part of Steam Expo '86.^[2] In 1999, new California emissions regulations banned the operation of coal-fired steam locomotives, forcing the 4466 out of service indefinitely. 4466 is now a static display with no plans to return it to operation.^[3]

References