Crews have been installing vegetation-friendly
concrete blocks into some slopes near Sawyer Camp Trail to stabilize them as part of a late-year erosion
control project.
The area is normally wetland habitat, and the innovative blocks are designed to allow future young plants to sprout through them and flourish after the project is finished. The work is being done to shore up the soil and rocks that were sliding into the nearby Crystal Springs/San Andreas Pipeline along the
reservoir shore.
The pipeline transports Crystal Springs reservoir water north to the San Andreas Reservoir and then the Harry Tracy Water Treatment Plant. Those local reservoir waters are then blended with Hetch Hetchy regional water for distribution to Peninsula and San Francisco customers.
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