O.K. ISOKARIARI & SONS (NIGERIA) LIMITED is a leading Engineering, Procurement and Construction company with over 45 years of work experience. We are known for our pragmatic value delivery, which flows from our people centric approach, committed professionals and prudent management.Job Description
The Road / Earthwork Supervisor is responsible for overseeing and directing on-site earthmoving, road construction, and civil earthwork operations.
The role ensures that all road alignments, excavation, filling, sub-base, base course, and compaction activities are executed according to engineering specifications, project drawings, safety standards, and strict quality control measures.
Responsibilities
Field Operations & Site Execution:
Direct and supervise day-to-day earthwork and road construction activities, including clearing, grubbing, excavation, embankment filling, grading, sub-grade preparation, and paving support.
Coordinate the deployment, movement, and optimal utilization of heavy equipment (such as excavators, bulldozers, graders, wheel loaders, compactors/rollers, and water tankers).
Ensure that construction lines, levels, grades, and slopes strictly conform to approved engineering drawings and surveyor markings.
Quality Control & Material Compliance:
Monitor soil moisture levels, compaction density, and layer thickness during earth-filling and sub-base operations to meet engineering test standards.
Coordinate closely with the Quality Control (QC) and materials testing team to conduct prompt field density and soil classification tests.
Prevent the use of substandard fill materials and ensure proper aggregate selection for sub-base and base course layers.
Safety, Health, and Environmental (HSE) Compliance:
Enforce strict compliance with Health, Safety, and Environmental (HSE) guidelines across all active earthwork zones.
Maintain hazard-free traffic management layouts on site, ensuring safe movement for heavy trucks, equipment, and personnel.
Reporting and Documentation:
Maintain a comprehensive daily site log detailing weather conditions, equipment deployment, ongoing earthwork activities, material deliveries, and workforce attendance.
Report daily production outputs, milestones, and operational bottlenecks to the Project Manager or Site Engineer.
Requirements
Education: Ordinary National Diploma (OND), Higher National Diploma (HND), or Trade Test/Certificate in Civil Engineering, Construction, or a related technical field.
Experience: Minimum of 5 years of hands-on site supervision experience in road construction, civil earthworks, asphalt paving, or large-scale infrastructure projects.
Skills & Proficiencies:
Deep technical understanding of heavy machinery operations (graders, rollers, excavators).
Ability to read and interpret civil engineering drawings, profiles, and survey pegs.
Strong leadership, conflict resolution, and crew management skills.
Excellent physical fitness and resilience for demanding field and weather conditions.