Specifications include, but are not limited to: Road Stone should meet Iowa DOT Standard Specification 4120.04 (See Attachment 5). Roadside delivery with chain spread or dumps - The contracted supplier will be responsible for dumping material in temporary piles near the specified location directed by the Agency. Roadside delivery and placed by supplier - The supplier will be responsible for placing the material on the designated area directed by the Agency by use of a machine furnished and operated by the supplier. Supplier’s equipment must be capable of spreading the granular shoulder materials in a uniform layer of the desired thickness and width in an evenly loose condition. Rock must be delivered by the supplier to the requested site in a timely manner, generally within seven calendar days or less after verbal or written request.