Bioretention Soil Specification - San Francisco Public Utilities .DESIGNER NOTE: Replace "Engineer/Landscape Architect" with person in responsible charge for the project (e.g., . Streambed Gravel [To be completed by designer.] . Caltrans, Standard Specifications .. 2 Sand conforming to ASTM C33 for Fine Aggregate satisfies the requirements of this specification for Sand, Type A.caltrans crushed rock with fines specs,Section 4-90 Concrete - CaltransSection 90, "Concrete," of the Standard Specifications provides material requirements . concrete materials from unhardened concrete, and use of materials from crushed .. "Coarse Aggregate Gradation," and 90-1.02C(4)(c), "Fine Aggregate.
caltrans crushed rock with fines specs