Rockville, Md. — Silver Diner plans to open its first Silver Diner restaurant in Washington, D.C., in 2022. The 8,000-square-foot, two-story space is located next to Nationals Park. This new two-story concept will feature an updated Silver Diner restaurant on the first floor and a bar, Bar Silver, on the second floor. The 300-seat layout includes an outdoor terrace overlooking Nationals Park. Bar Silver will provide drinks and small plates while downstairs will offer dining with a menu featuring the most popular items served at Silver Diner restaurants. “This location …