The high bridge was for clearance for freighters. The port had big plans to develop the Duwamish. Dad had a boat at Riverside marina(Pioneer was next to it) which was on the WS side between the railroad bridge and Kellog Island. The boaters in the marinas fought long and hard but the port kicked us out and demolished the marina’s. The land is still not used today. As far as traffic-that’s right, we were on the surface over Harbor Island. I do remember being stopped by boats and trains but don’t remember feeling, or hearing my dad complain that it made us late for anything. I wonder what the population of WS was then-vs now?