Those are good points, the Crystal Springs Dam earthquake retrofit in San Mateo County is almost fifteen years into the scheduled five year earthquake retrofit. :)

I thought the dam retrofit itself was done and the remaining work is just road work.

You are right but the work is ten years overdue from the first estimate on the first sign they put up next to the Crystal Springs trailhead where the road is closed to traffic. Eventually they covered up the last two digits on the year number sign last time I checked with replaceable numbers like the days without accident sign in the nuclear power plant that is Homer Simpson's workplace.