WASHINGTON — Add Pennsylvania Avenue, the president’s street, to the list of America’s troubled spots.

The famed street between the U.S. Capitol and the White House has “fallen into disrepair,” according to the Cultural Landscape Foundation, which placed the avenue on its list of a dozen threatened landscapes around the country.

Benches are falling apart, trees have been cut down, water fountains often don’t work and “unsightly security planters” litter the avenue, according to the group dedicated to raising awareness of important landscapes.

The poor report card on the avenue — the route of the inaugural parade and designated a national historic site in 1965 — is the latest black eye for the nation’s capital.

Budget cuts have delayed repairs of 1,300 cracks in the Capitol dome. A thick layer of green algae has forced the National Park Service to drain the reflecting pool in front of the Lincoln Memorial after a $34-million renovation project. And the Washington Monument will remain closed for at least a year for earthquake repairs.

National Park Service spokeswoman Carol Johnson said of the criticism of Pennsylvania Avenue: “We know that this is an important historical corridor that needs some work, and are working on a plan to improve it.”

Among the foundation’s concerns are the security planters that have been placed along the avenue. “Many of these concrete planters, which look like a temporary solution to security concerns, are filled with dead or dying plants (and sometimes no plants at all), and they diminish the character of the Avenue, disrupt pedestrian flow and deter from the iconic streetscape,” the group says.

Eleanor Holmes Norton, the district’s delegate to the House, said residents had hoped that the opening of a pedestrian plaza in front of the White House several years ago would continue the revitalization of Pennsylvania Avenue, a project begun during the Kennedy administration.

“But it never much made it to Pennsylvania Avenue at all,” she said.