Construction crews and Valley Water officials recently reached a “milestone” on the $576-million Anderson Dam Seismic Retrofit Project in east Morgan Hill, with the completion of a massive concrete and “soil nail” wall next to the existing dam, according to water district staff. The wall is just outside the reservoir, just south of the existing Anderson Dam. The structure leaves an opening for a 24-foot outlet tunnel that will feed into Coyote Creek when the project is complete. The wall is composed of 244 rebar soil nails, arranged in a grid pattern, that were driven 120 feet deep into the ground before they were reinforced with concrete, Valley Water Engineer Chris Hakes told directors at a Sept. 27 board meeting.

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