LOS ANGELES (CBSLA.com) — Angelenos should anticipate traffic delays and detours downtown Wednesday as thousands participate in numerous May Day marches and rallies in support of immigration reform.

Certain streets will start to close at 6 a.m., and a number of off-ramps from the Hollywood (101) Freeway will likely be shut down at Spring Street and Broadway, as participants join together for three marches.

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ANSWER Coalition’s event, which is the primary march, will begin at noon at Olympic Boulevard and end near Olvera Street, with a large rally planned on Main Street.

A second march, orchestrated by the Southern California Immigration Coalition, will start at 4:30 p.m. at Olympic and Broadway and will move north to Broadway and Third Street.

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A third march will kick off around 3:30 p.m. at Central Avenue and Seventh Street.

Metro officials said several bus routes will change throughout the day.

For a full map of the planned marches and street closures, visit the city’s Department of Transportation site.

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