To improve the dam’s ability to withstand seismic events and to meet state and federal safety guidelines, Pacific Gas & Electric (PG&E) commenced a seismic retrofit project. The earthen dam modification project added approximately 253,000 – cubic-yards of rock fill to areas on the upstream and downstream faces of the dam.
For the Crane Valley Dam project, Coldspring supplied 128,000 tons of Sierra White® granite, in sizes from 3/8 – inch to 20 -inches, for use as structural reinforcement.
To discover more about the kinds of creations Coldspring has made with our materials, reach out to us today.
