Before you commit to the Northern Neck or further south, first try going south from Rockville on the Beltway I-495, and then 95S in Virginia past Springfield. Do this when you normally would be traveling. Two to 3 hours to the Northern Neck? Maybe on a rare, very good traffic day. I-95S can be solid from Springfield to Fredericksburg especially on a Friday, rush hour is going strong by 3PM. The traffic is the one reason why we are not on the Northern Neck. One of our favorite marinas is White Point on the Yeocomico, but looking at that long stretch of bumper to bumper going either North or South kept us away. While we travel North on a Friday to our boat in MD, Southbound I-95 is not moving very fast. I could be wrong on this, but after living in Northern Virginia for over 30 years, the I-95 traffic is not getting better.