Ten years after learning of the need to replace or repair the dam at Lake Wohlford, officials at the city of Escondido are still trying to raise the money. It’s a substantial sum — $45 million to $50 million — and they’re about halfway to it. Completion of the project would enable the city to store about twice as much water as it now can in the man-made reservoir and still prevent flooding from the structure in the event of a big earthquake.