Dutra Materials is a major supplier of aggregate in Northern California with a strategically located quarry in San Rafael and material distribution centers scattered across the San Francisco Bay and Sacramento-San Joaquin Delta region.
The San Rafael Rock Quarry has been actively mined for over 100 years. Dutra Materials has an experienced and highly skilled staff that includes geologists as well as mining and civil engineers, all with extensive experience in the aggregate industry. Dutra Materials produces a wide variety of products, most of which are available for delivery to both waterside and land-side sites.
Acknowledged as a Certified State & Federal Resource
The San Rafael Rock Quarry is unique because its waterside barge-loading equipment makes it the region’s most cost-effective source of high-quality aggregate. The Quarry also offers an extensive barge and towing fleet, which allows it to handle jobs of any size within its service area.
Dedicated to supporting construction projects and rock quarrying efforts including drilling, blasting, crushing, screening and barge load-out equipment.