10 refers to two streetcar lines in Los Angeles, California. They operated by the Los Angeles Railway for a combined period from 1932 to 1946.

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The route started in 1932 as a combination of two former lines: the M on Arlington Avenue and the A Line Broadway segment. It ran from Vernon and Arlington in the south to Lincoln and Mission in Lincoln Heights.^[1] In 1939 the Broadway line was reassigned to the W and service was rerouted all the way to the Edgeware line in Angelino Heights, but this was cut back to 39th on New Year's Day 1943.^[2] At the time of its closure, the route ran from Grand Avenue and 39th Street to the intersection of Vernon and Arlington Avenues, by way of Grand Avenue, Santa Barbara Avenue, Dalton Avenue, and Vernon Avenue. The service ended on November 30, 1942; the Edgeware Road Line continued to operate as a shuttle, designated number 37, until mid-1946.^[3]

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10
Overview
Locale	Los Angeles
Termini	Santa Barbara and Normandie Avenue Vermont Avenue and W. 39th Street (peak hours) Vernon and Arlington Avenues
Service
Type	Streetcar
System	Los Angeles Railway
History
Opened	June 21, 1943 (1943-06-21)
Closed	January 17, 1946 (1946-01-17)
Technical
Track gauge	3 ft 6 in (1,067 mm)
Electrification	600 V DC overhead line
Route map Legend 1943–1946  F   5   9  Grand and 39th Grand and Santa Barbara Santa Barbara and Hoover  F   9  Santa Barbara and Vermont  U   V  Santa Barbara and Normandie Santa Barbara and Dalton  5  Dalton and Vernon Vernon and Western Vernon and Arlington This diagram: view talk edit

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A wholly new route was assigned the number 10 on June 21, 1943, running over Vernon, Dalton, and Santa Barabara and extending to Vermont and 39th at rush hours.^[2] This 10 ran until January 27, 1946, when it was converted to bus operation.^[4]