Emergency Buy: Type 1 River Rock, Missouri River Mile 52.8, Kansas City District USACE

Please See Attached for Solicitation Details

Amendment updates SOW to clarify Missouri River river mile 52.8.

Q&A:

Q1. Is a gradation test required prior to shipping material?
A1. No

Q2. No geological requirements are associated with the stone, what are the requirements in order to be considered durable stone. For instance, freeze thaw requirements, specific gravity?
A2. Bulk specific gravity saturated surface-dry basis, method ASTM C 127 - not less than 2.40. Soundness in freezing and thawing method for ledge stone, Method CRD-C 144-92 loss at 20 cycles - not more than 25 percent .... Read More