Re "Auburn dam posed dangers" (Letters, Jan. 20): Letter writer Stephen Farr challenged the recommendation in my letter for building the Auburn dam on the basis of a fault trace in the canyon found in 1975. However, he overlooks the fact that a new gravity dam was designed to replace the high-arch original dam, which was abandoned. The new dam site is covered in the Bureau of Reclamation Report titled "Seismic Safety and Auburn Dam," which includes many investigations. Reclamation Commissioner Keith Higgenson noted there was more seismic information about the Auburn damsite than a damsite anywhere else in the world. I suggest the letter writer do more research on Auburn dam before writing about it. The Auburn dam is safe and needed. We should build it.
-- Joe Sullivan, Roseville, geological engineer