RAPID CITY, S.D. (AP) — A group proposing a Native American sculpture park in Rapid City says construction would begin within three years once the city gives final approval.

The Rapid City Journal reports that the timeline was reached during a private meeting Monday by the First Nations Sculpture Garden Corporation, Mayor Sam Kooiker and two Rapid City council members.

The First Nations Sculpture Garden would feature four busts of prominent 20th century Native Americans in Halley Park. But the city’s Parks and Recreation Department is concerned there may not be safe walking access to the park. The city also has concerns about the project’s time frame.

The city’s Public Works Committee will discuss the project on July 30.