Colorado · answered by Verika · verified against sources
What slump is allowed for structural concrete on Colorado highway projects?
For structural concrete on Colorado highway projects, the maximum slump is 9.0 inches (except for Self Consolidating Concrete, which has separate requirements). Slump must also meet the approved mix design ±2.0 inches [1,4].
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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.