The Dutra Group is a family-owned, industry-leading marine construction company with over a century of expertise. With three integrated divisions—Dutra Dredging, Dutra Construction, and Dutra’s San Rafael Rock Quarry, Inc.—we provide a one-stop organization capable of handling projects of any scale with exceptional reliability and pride.

Thornton Paving Inc., located in San Rafael, CA, is your go-to expert for all your paving and excavation needs. Specializing as an Asphalt Contractor, Paving Contractor, and Excavating Contractor, they bring top-notch quality and service to every project. From residential driveways to commercial parking garages, Thornton Paving Inc. ensures smooth, durable surfaces and professional results. Trust their experienced team for... Read More about Thornton Paving Inc.