Precast Concrete Retaining Wall System

The County of Ontario is seeking bids for the purchase and delivery of a precast concrete retaining wall system to be delivered to the ARC Rear Parking Lot. The project includes the supply, delivery, and offload of all materials as per the attached plans and prints. The selected contractor will be responsible for ensuring that all work meets the specified standards and requirements. The precast concrete retaining wall system must meet specific specifications, including materials, design, dimensions, and accessories. The contractor must adhere to delivery requirements, including schedule, handling, and inspection. • The precast concrete units must be manufactured using high-strength concrete with a minimum compressive strength of 4,000 PSI at 28 days. • The concrete mix design must be in general accordance with ACI 318 durability requirements. • The retaining wall system must be designed to support the loads and conditions specified in the attached print. • The wall units must be modular and interlocking to ensure stability and ease of installation. • The units must have a textured finish on the exposed face to match the aesthetic requirements specified in the plan.