San Rafael Rock Quarry

1000 Point San Pedro Road, San Rafael, CA 94901

Richmond Plant

961 Stenmark Drive, Richmond, CA 94801

Dutra Materials is a key supplier of aggregate in Northern California with a strategically located quarry in San Rafael and material distribution centers located among the San Francisco Bay and Sacramento delta region.

Dutra’s Rock Quarry has been an active mine for over 100 years. Dutra Materials has an experienced and highly skilled staff which includes geologists as well as mining and civil engineers, all with extensive experience in the aggregate industry. Dutra Materials manufactures a wide variety of products, most of which are available for land-side or water-side distribution.

Dutra’s Rock Quarry, The San Rafael Rock Quarry, acknowledged as a certified State and Federal resource, is unique because:

  • Water-side barge-loading equipment makes it the most cost-effective transporter of quality aggregate in the region.

  • An extensive barge and towing fleet allows it to handle any-sized job within its service area — from projects West of the Rocky Mountains to the Pacific Rim.

Product Information

See all materials available, along with specs and gradations, from both our San Rafael Rock Quarry and Richmond Plant below!












Need pricing for a project? Request a quote now!

SRRQ has strict permit regulations for our truck drivers. Please be prepared when arriving at the quarry for the first time.

Some prominent projects Dutra Materials provided material for:

  • Sacramento Delta levee repair projects for the U.S. Army Corps of Engineers and Department of Water Resources

  • Bay Area Rapid Transit (BART) tube, Oakland, CA

  • Peyton Slough Remediation, Martinez, CA

  • Port of Oakland/Oakland International Airport Runway

  • Stinson Beach Shoreline Restoration

  • Marin County Highway 101 Widening Project

  • Golden Gate Race Track

  • Rowland Blvd. and Hamilton Field Levee repairs, Marin County, CA

  • Bay Area schools — sporting fields and playgrounds

Testimonial & Accolades for Dutra Materials

Richard Ghilotti, President, Ghilotti Construction

"Having done business with the Dutra Group for over 30 years, we are proud to be in partnership with a company that not only provides excellent customer service, but has made considerable contributions to the growth of our community over the years."

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Dave Lehman, President, Dave Lehman Trucking

“For over the past thirty years I have delivered rock from Dutra to Contractors and Homeowners. The rock product that is mined at Dutra’s San Rafael location is of the highest core density. Therefore, whether it’s rip rap for structural support or base rock for compaction, the customers are very happy with the product.

I’m very grateful to the employees of Dutra for their accommodation and courteous help and support."