How much water has flowed under the bridge since 1938? Well, for starters, the bridge itself - in this case, the Verrazano-Narrows - wasn't even built yet. We had no PCs, no CDs, no LPs, not even TVs in 1938. Manhattan's shore ended at West Street, which bristled with steamboats and their docks. Hundreds of daily arrivals brought people and cars and horse-drawn wagons across the North River, from the Garden State and the terminals of powerful railroads. Containerization, like cartridgization and cassetization, were yet to be thought of, and so were containerports. So was the strip of the Kill known as gasoline alley, and events it would sponsor - the Exxon/Mobil blast a year and a half ago…