Get in touch with us for civil engineering services in or around the Riverside and San Bernadino, CA area


Streamlined Solutions for Land Improvement and Environmental Integrity

Engineering Authority provides civil engineering services to meet a wide range of land improvement needs. We specialize in developing hydrology and grading plans, soil reports and water quality management plans (WQMPs).  Our strategically located facility is within walking distance of the county and city engineering buildings. You will enjoy streamlined support and guidance in the permitting process.

We handle all aspects of civil engineering, including hydraulics, traffic engineering and surveys, to support efficient and sustainable site development in the Riverside and San Bernadino, CA area. Contact us today to schedule our services.

Learn more about our process

From initial consultation to final approval, Engineering Authority assists clients at every step.

In addition to civil engineering and water quality management plans, we produce architectural plans encompassing the requirements for the following:


  • Mechanical
  • Electrical
  • Plumbing (MEP)


Trust us to bring a seamless, integrated approach to your project. Dial 951-777-1312 if you have any questions.


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