Civil Engineering and Land Planning
for the North Bay
and Beyond

Annadel Engineering specializes in providing general Civil Engineering services.

We provide designs for grading, drainage, utility, accessibility, and much more for a variety of commercial, private, and public projects. We have successfully complete jobs throughout the bay area with a focus on the North Bay.

Over 20 years ago, Bill Boriolo went to work for his father who was a general contractor. Working on a construction site quickly instilled respect for the industry and the value of hard work. After working in the blistering sun and freezing cold, Bill quickly learned an office job as a civil engineer was the way to go. This has led him to open Annadel Engineering.

Check out our services »

Annadel State Park
Photo: Brian Michelsen from Santa Rosa, CA

Here's a partial list of services we provide.  Give us a call to discuss your project.

- Drainage and Grading Plans
- Grading Violations
- Erosion & Sediment Control Plans
- NOI Applications
- SWPPP Reports
- Driveway Encroachment Permit
- Public Improvement Plans
- Hydrology and Hydraulics Studies

- Storm Design, C.3. Provision & Hydromodification
- Site Plans
- Plot Plans
- As-Builts
- General CAD Drawing Services
- Tentative Map
- Parcel Map
- Lot Line Adjustments

Contact us today about your next project.

© 2019 Annadel Engineering | A Sonoma County CIvil Engineering Firm