Construction Materials Inspector

Construction Materials Inspector

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

First Review of Applications:
November 24, 2025, at 12:00 p.m. (PT). This recruitment may close without notice after this date, so interested applicants are encouraged to apply immediately. A resume and supplemental questionnaire must be submitted with the completed City application.

The process may include individual and/or panel interviews, background check, medical exam, and other related components. Only those candidates who have the best combination of qualifications in relation to the requirements and duties of the position will continue in the selection process.

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 (510) 494‑4660 or emailing human resources.

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

• Under general supervision, tests soils and highway construction materials in the field and laboratory to ensure compliance with City, Cal Trans, and industry norms, specifications, and safety standards; performs related duties as required.
• 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 and sketches location of tests sample sites.
• Performs appropriate tests of material samples, such as nuclear density test, 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 joint sampling and testing.
• 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.
• Might assist Survey crew with rod and chain survey instrument work.
• 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 equipment such as a nuclear moisture density gauge, sieves, and Cal Trans Impact Tube.
• Ability to obtain samples of construction materials; determine and conduct appropriate tests; learn characteristics and provenance of local soils and gravels; make accurate computations; read blueprints; gather data and prepare accurate reports; keep accurate records; learn and apply standard practices and procedures; follow oral and written instructions; establish and maintain cooperative working relations with individuals from a variety of cultural and socio-economic backgrounds;
  
  learn rod and chain and surveying work; comply with common safety procedures; communicate effectively.

Any combination of education and/or experience which has provided the knowledge, skills, and abilities necessary to satisfactory job performance would be qualifying. A typical way to obtain the required…