Some internships may involve heavy work that includes heavy lifting, working near moving mechanical parts and loud equipment, the ability to sit or stand for long periods of time as well as lifting, pulling, bending, kneeling, squatting, climbing, walking, reaching, driving, and repetitive motion. Through our extensive network of hot mix asphalt and ready-mix concrete plants, quarries, and liquid asphalt terminals, PII delivers the highest quality materials and custom solutions to thousands of road construction and road maintenance customers.