The Memorial Bridge will be closed to vehicle and pedestrian traffic tomorrow (Wednesday) due to the 50th Anniversary March on Washington.

The event — which commemorates the anniversary of 1963 march and rally that featured Dr. Martin Luther King, Jr.’s “I Have a Dream” speech – will start at 9:00 a.m. with a 1.6 mile march throughout the District, and will culminate with speeches at the Lincoln Memorial and Reflecting Pool.

Among the planned speakers are President Obama, former presidents Clinton and Carter, and civil rights leaders. The program at the Lincoln Memorial will take place from 11:00 to 4:00 p.m. and is open to the public. Gates open at 9:00 a.m.

U.S. Park Police will close the Memorial Bridge to all vehicle and pedestrian traffic starting around 3:15 a.m. on Wednesday.

Metro is urging those attending the event to not use the Arlington Cemetery station due to the closure. Arlington Memorial Circle will remain open during the closure.