Louisiana · answered by Verika · verified against sources
What are the rules for placing concrete in cold weather on Louisiana DOT projects?
Do not place concrete if internal temp <45°F or subgrade/frozen forms <32°F. Discontinue PC mixes at ≤35°F air temp or NOAA forecast <32°F in 24h; resume only when air temp ≥32°F for ≥24h with NOAA high >35°F. For binary mixes, discontinue at ≤40°F or NOAA forecast <35°F in 36h; resume at ≥40°F for ≥36h with NOAA high >45°F. For ternary mixes, discontinue at ≤45°F or NOAA forecast <40°F in 48h; resume at ≥45°F for ≥48h with NOAA high >50°F. Written authorization required for operations outside these limits.
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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.