John Rocca, the construction manager from Black and Veatch Water, looks over the wall at the water intake system on the old dam on Alameda Creek in Fremont, Calif., Tuesday, September 13, 2011. Ground will be broken on Friday for a new earthen dam. The project is expected to take four years and will be more seismically secure than the current dam. The new dam will be behind the old dam, which will be partly submerged and partly removed to allow water through to the new dam.
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