Construction Materials Inspector

Construction Materials Inspector

The Public Works Department is recruiting for this position. The department includes Design Engineering, Development Engineering, Construction, Civic Facilities, Transportation, Survey, and Real Property sections. It reviews all proposed land development projects in the City and executes design and construction of public projects such as streets, parks, and public buildings.

The first review of applications will take place on November 24, 2025, at 12:00 p.m. (PT). The recruitment may close without notice after this date, so interested applicants are encouraged to apply immediately. A résumé and supplemental questionnaire must be submitted with the completed City application. To be considered for this opportunity, please complete an online application by clicking Apply just above this box.

The process may include individual and/or panel interviews, background check, medical exam, and other related components. Only candidates who have the best combination of qualifications in relation to the requirements and duties of the position will continue in the selection process. Meeting the minimum qualifications does not guarantee an invitation to participate.

Human Resources will make reasonable efforts in the examination process to accommodate persons with disabilities. Please advise Human Resources of any special needs a minimum of 5 days in advance of the selection process by calling  or emailing human resources
.

For additional information, please contact Human Resources Department at human resources
.

Definition
Under general supervision, tests soils and highway construction materials in the field and laboratory to insure compliance with City, Cal Trans, and industry norms, specifications, and safety standards; performs related duties as required.

Class Characteristics
This is a technical classification describing work performed in the Construction Unit of the Development and Environmental Services Department. Assignments, time lines, and objectives are established but the employee has flexibility in the selection of steps and timing of work. Review is occasional, during progress or upon completion, with the incumbent responsible for suggesting alternative solutions.

• Takes field and quarry samples of base, sub base, and quarry mix materials.
• Assists inspectors of construction projects with field measurements and sampling.
• Determines test sites.
• Sketches location of test/sampling sites.
• Determines and conducts appropriate tests of material samples, such as nuclear density test to determine relative compaction of soils and aggregates; sand equivalent test; sieve analysis; oven moisture; cement sampling;
  Kelly‑Ball cement testing; and slump cone.
• Performs mathematical calculations related to testing.
• Prepares technical reports on test results.
• Collects and distributes reports to construction inspectors.
• Coordinates with State Highway Testing Certification Inspectors in taking and conducting joint sampling and testing of materials to assure continued adherence to State Materials Testing Standards.
• Performs routine cleaning, maintenance and servicing of assigned equipment.
• Prepares budget recommendations for related materials and supplies.
• Files and maintains lab records.
• Prepares routine correspondence and reports.
• Serves as the City’s Radiation Safety Officer.
• Researches locations and marks City facilities in the field for Underground Service Alert reports.
• May be required to assist Survey crew with rod and chain survey instrument work.

Marginal Functions

• Other duties as assigned.

Knowledge of types and grades of commonly used construction materials; techniques of gathering materials from the field for testing; principles, practices, and techniques of laboratory testing; symbols used in design drawings; appropriate test results; mathematics through algebra and trigonometry; principles of physics; first year college level chemistry; high school level mechanical drafting.

Skill in operating an automobile on city streets and construction sites; using laboratory testing…