The Trump administration said Thursday that excavation work will start over the next two weeks on the site where it plans to build a towering, gilded arch, a project that is facing a lawsuit and that critics

say will disrupt historic sightlines in Washington, D.C.

The proposed arch is one of several projects the Republican president is pursuing to leave his lasting imprint on Washington, including renaming and renovating the Kennedy Center, building a huge new White House ballroom, refurbishing the Lincoln Memorial Reflecting Pool and rebuilding a golf course in East Potomac Park that could significantly reduce the public’s access to running and biking paths.

“This will be one of the Great Pieces of American Architecture,” Interior Secretary Doug Burgum wrote on X, “befitting the most powerful Capital in the World.”

Along with the announcement on X, Burgum posted artistic mockups of the planned 250-foot-tall (76-meter) memorial arch, which will stand between the Lincoln Memorial and Arlington National Cemetery.

The depictions showed a towering, white arch with gold detail, stamped with “ONE NATION UNDER GOD." On its top is a Lady Liberty-like gold figure with wings and a torch, as well as gold eagles, their wings spread outward.

A National Park Service report released Friday backed the project, though it said there would be adverse effects to the sightlines between a host of iconic landmarks, disrupting the historical significance of dozens of nearby sites.

A lawsuit filed by three veterans and an architectural historian argues that Congress must pass a law to authorize the arch.