Placer County

Engineering Aide (#15571)

$22.59-$28.21 Hourly / $3,915.60-$4,889.73 Monthly / $46,987.20-$58,676.80 Yearly


To perform surveying, drafting and various subprofessional engineering office work.


Receives general supervision from supervisory staff and technical and functional supervision from professional staff.


Duties may include, but are not limited to, the following:

  • Work as a rod worker, rear or head chain worker with a survey party.
  • Use tapes, hand levels, level rods, plumb bobs, tripods, prisms, precise sights and other survey equipment.
  • Determine lines, angles, distances and elevations.
  • Maintain notes of readings and observations.
  • Clean and adjust survey instruments.
  • Assist less experience aides in routine survey activity.
  • Prepare sketches and drawings from field notes.
  • Check data against other surveys.
  • Use calculator in making routing computations involving distances, angles, areas, grades and profiles.
  • Assist in the review of subdivision and parcel maps, land surveys, maps, municipal and district boundaries submitted to the County Surveyor.
  • Search titles and documents and assist in preparation of descriptions.
  • Perform occasional drafting, map modification, and assist in producing maps using the AutoCad mapping system.
  • Maintain records and make routine reports of work performed.
  • Prepare traffic counts if necessary.
  • Assist in traffic surveys and perform routing traffic engineering work.
  • Act as instrument operator in absence of regular operator or for training purposes.
  • Assist an inspector on construction projects and soil testing if necessary.
  • Perform related work as assigned.


Experience and Training
Any combination of experience and training that would provide the required knowledge and abilities is qualifying.  A typical way to obtain the required knowledge and abilities would be:

Experience: No experience is required.

Training: Equivalent to the completion of the twelfth grade including successful completion of a course in trigonometry.

Required License or Certificate:
May need to possess a valid driver’s license as required by the position.  Proof of adequate vehicle insurance and medical clearance may also be required.


Knowledge of:

  • Application of algebra, geometry and trigonometry to engineering and surveying principles.
  • Care and use of surveying equipment.
  • Basics of drafting practice.
  • Teamwork concept applied to small crews.
  • Surveying research and computation.
  • Principles and practices of work safety.

Ability to:

  • Interpret engineering maps, plans, specifications and legal descriptions, transpose drawings and diagrams and prepare neat and accurate tracings.
  • Calculate accurate engineering computations.
  • Operate survey and drafting instruments and equipment.
  • Communicate clearly and concisely, both orally and in writing.
  • Work with various cultural and ethnic groups in a tactful and effective manner.
  • Learn to use AutoCad mapping system.
  • Establish and maintain effective working relationships with those contacted in the course of work.
  • Sit at desk for long periods of time; and stand at counter to answer questions to answer questions from the public.
  • Intermittently, sit while studying or preparing work papers, making computations, working at computer equipment; walk, stand, bend, squat, climb, kneel and twist while performing field work; perform simple and power grasping, pushing, pulling, and fine manipulations; see and hear sufficiently to communicate by visual and auditory signals while working in the field; regularly lift very heavy weight.

CLASS: 15571; EST: 5/1/1998; REV: ;