Finally, the new eastern span of the San Francisco-Oakland Bay Bridge opened to motorists yesterday morning with little fanfare. The $6.4 billion bridge was completed after more than a decade of indecision and still another decade of construction. The self-anchored suspension bridge provides new vistas of the East Bay and a focal point of civic pride that was sorely lacking in the original truss bridge it will replace. The new bridge also includes pedestrian and bike paths, though a critical piece of said paths will not open until the older bridge comes down piece by piece. However, one dangling thread remains: What will be the fate of the Bay Bridge Troll, a grotesque figurine bolted at the bottom of the old bridge?