1. I-495 (Capital Beltway): Known for constant gridlock, especially during rush hours, the Capital Beltway loops around D.C. and is often a source of frustration for drivers. If possible, avoid driving on I-495 between 7 AM - 10 AM and 4 PM - 7 PM. Instead, consider alternative routes like the George Washington Parkway or using Metro stations with park-and-ride options. 2. I-66 Inside the Beltway: I-66 can be especially slow when approaching D.C. from Virginia, particularly during weekday mornings. Consider using HOV lanes if you meet the occupancy requirements or take Route 50, which can be a less congested option. 3. New York Avenue: This road connects downtown D.C. to Maryland and is notorious for heavy traffic during morning and evening commutes. Avoid using this route during peak hours and consider side streets or public transit as better alternatives. 4. Georgetown: The charming, cobblestoned streets of Georgetown are beautiful but narrow, leading to frequent congestion, especially near M Street and Wisconsin Avenue. Parking is also limited. If you’re visiting Georgetown, it’s best to park elsewhere and walk or take the Circulator Bus. 5. Route 1 in Alexandria, VA: South of D.C., Route 1 experiences significant congestion, particularly near Old Town Alexandria. Try using the parallel-running George Washington Parkway for a more scenic and less congested route. 6. 14th Street Bridge: Crossing from Virginia into D.C., the 14th Street Bridge is often backed up, especially during rush hour. If possible, use the Memorial Bridge or Key Bridge as alternate routes into the city.