Dec 17, 2004 — The idea of a "rooftop highway," a four-lane divided road to connect Watertown and Plattsburgh, has become almost mythical in North Country lore. The concept has floated around policy circles since the 1960s as a means of regional economic development. In the last few years, the rooftop highway movement has gathered steam. Governor Pataki even gave it a new name--the Northern Tier Expressway--at a 2003 appearance at Clarkson University. Plans are slowly moving forward, despite some setbacks. David Sommerstein has this update.