The U.S. Army is now estimating the cost, start to finish, for its 250th birthday parade in Washington, D.C., on June 14 will be between $25 million and $40 million.

That includes the cost of repairs to roads damaged by massive military vehicles, expected to cost millions. Some 150 military vehicles will roll down Constitution Avenue between 23rd and 15th streets, and thousands of soldiers will be marching to celebrate the Army’s birthday.

Army planners started working on the festival two years ago to mark the day, which also happens to be President Donald Trump’s 79th birthday. The Army has said that it expects as many as 200,000 people to attend its celebration.

Members of the Army’s 1st Cavalry Division have recently loaded dozens of tanks and other military vehicles onto railcars in Texas. The massive machines are heading to the nation’s capital.

“Everyone is just beyond excited to celebrate the Army’s birthday,” said Col. Kamil Sztalkoper, director of public affairs for III Armored Corps.

These Abrams, Bradleys and Strykers will be featured during the Army’s parade down Constitution Avenue. Because of their weight, road damage is expected, so softer tracks are being used.

Sztalkoper added, “On the tracks themselves, there’s a hardened piece of rubber that absorbs the shock and vibration of driving on various surfaces.”

Steel road coverings are also being used in and around the parade route to protect road surfaces.

Members of the Army Corps of Engineers have been installing thick steel road coverings near the National Mall to protect D.C. streets from the impact of massive military tanks featured in the parade down Constitution Avenue on June 14.

“You’ll see these in multiple locations along the parade route, but we hope that you don’t notice them as you drive across,” Col. Jesse Curry said. “Once the parade is complete, we want to return these roadways fully to the DC commuters and all those who use these roads to get to and from work and to visit our capital city.”

On June 14, the Army will host an all-day festival along the National Mall. The parade runs from 6:30 to 7:30 p.m., followed by a concert and fireworks show.

During his first term, Trump proposed having a grand military parade in the U.S. after seeing one in France on Bastille Day in 2017. He said after watching the procession along Champs-Elysees in Paris that he wanted to see a grander parade in Washington, according to the Associated Press.