David Crye Engineering & Construction pull from three Rock Quarry's serve your needs, large or small. You can pickup the materials yourself or call us to deliver them to. We have portable crushing and screening equipment available for rental. Our Rock Quarries are located in Cambria, Moro Bay and Atascadero. We do transport by trucks of heavy materials. We dig trenches for sewer, water & storm drain installation and repair. We do excavating and grading. We do sidewalk grading, base placement and paving. We do demolition of structures, concrete, asphalt and more.