South Dakota · answered by Verika · verified against sources
What slump is allowed for structural concrete on South Dakota highway projects?
For structural concrete on South Dakota highway projects, slump at placement must be 6–8 inches for free-fall/tremie methods or 7–9 inches for tremie-pumped concrete, with a minimum of 4 inches for 4 hours post-batching [1].
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Verika provides information with citations to help you find and understand the rules that apply to your work. It is not a substitute for professional engineering or legal judgment. Answer generated 2026-08-28; always confirm against the cited source for your project.