LeAnn Pegram with the Forsyth County Historic Resources Commission said a replacement has been ordered from a foundry in Ohio.
She said such accidents are not uncommon.
"That's happened with a couple other markers," Pegram said. "Especially when [the trucks] round the corner, they'll whop it."
Currently, there is only a naked post at the site, and Pegram said that typically the signs cannot be repaired when they are accidentally damaged.
Larry Little, a founder of the chapter who currently teaches at Winston-Salem State University, said he has field a couple phone calls from people in the community inquiring about the status of the sign.
"Sometimes these big trucks, they have to make a turn and they come up on the sidewalk," he said.
Erected in October 2012, the marker commemorates the Winston-Salem Black Panthers as the first chapter in a Southern city and reflects the organization's efforts to "protect African-American neighborhoods from police brutality" and to provide "community service programs, including free breakfasts for school children, sickle cell anemia testing and the Joseph Waddell People's Free Ambulance Service."
