Black Lives Matter Plaza, created in the District of Columbia last year amid nationwide protests and riots, is being made permanent. Construction started Monday to make the plaza “a permanent installation,” according to a joint statement from the office of Washington Mayor Muriel Bowser and the District Department of Transportation. Construction workers will install roadway pavers, bollards, and a permanent Black Lives Matter mural. The work is slated to conclude by October 1. “Once completed, the permanent installation will protect pedestrian safety while accommodating vehicles and keeping with the spirit of the original mural design,” officials said. A rendering of what the plaza will look like shows that the middle of the street will be restricted for pedestrian use, with one lane of vehicular traffic on either side. The cost of the construction hasn’t been made public. Bowser, a Democrat, renamed a part of 16th Street to “Black Lives Matter …