Civil Engineering
 Surveying and Mapping
 Research & Due


Thienes Engineering has been providing our clients with quality services and setting the standard of excellence for over 25 years. From site selection to certificate of occupancy, we bring the expertise and experience to deliver your projects on time and on budget. Our firm offers a full range of civil engineering services including.

  • Grading Plans
  • WQMP
  • Hydrology Reports
  • Storm Drain Design
  • Sewer System Design
  • Street Improvement Design
  • Construction Administration
  • Entitlement Management


Near to the heart of most every civil engineering project are the land survey services. Our firm performs all land surveying services in-house by qualified and trained personnel. By performing these services in-house we can ensure the quality and accuracy of the product delivered. The land survey services we offer include the following.

  • ALTA surveys
  • Design surveys
  • Construction Staking
  • Subdivision Maps
  • Record of Surveys
  • Lot Line Adjustments
  • Parcel Mergers
  • Easement Descriptions
  • Condominium Plans


Nobody likes surprises when it comes to site selection or project planning. These surprises have the potential of costing millions which were never in the budget. At Thienes Engineering we offer an independent look at the site and deliver to our client an analysis of the issues or potential issues associated with the development of a site and the costs related to these issues.


14349 Firestone Blvd., La Mirada, Ca 90638   Ph. 714.521.4811   Fax: 714.521.4173   Email:
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