The lower level of Malcolm X Park in Columbia Heights will be fixed up with new walls, walkways, and stairs as well as accessibility improvements starting this month, the National Park Service says.

The work will close the lower level to visitors until summer 2022, when the project is expected to be finished. The renovations will be focused on the park’s southern end near W Street NW, and will preserve the park’s historic architectural features, per NPS. A “universally accessible” path will be installed on the 16th Street NW side of the park.

“During the project, visitors will not have access to the lower level of the park,” the agency says in a release. “In addition, small sections of the upper level of the park will close temporarily for specific parts of the project and to stage equipment.” The rest of the upper level will remain open throughout the project.

NPS also plans to replace hazardous trees, restore shrubbery, and create a tree-archway known as a “pleached allée,” which was part of the park’s original design. The allée will “frame the distant view of the Washington Monument,” says NPS. Storm drain upgrades are planned as well.

The 12-acre park is an example of neoclassical park design and, according to NPS, has some of the earliest examples of decorative exposed aggregate concrete in the U.S. It was built in 1914 and previously served as a Civil War encampment. Also known as Meridian Hill Park, the park was designated as a National Historic Landmark in 1994.

Future rehabilitation work will repair the park’s iconic cascading fountain, but funding has not been identified for that project yet, per NPS.