You'll need Denver concrete pros who plan for freeze–thaw, UV, and hail. We mandate 4500–5000 psi, air‑entrained mixes (w/c ≤0.45), #4 rebar at 18-inch o.c., Class 6 bases compacted to 95% Proctor, and saw cuts within 6–12 hours. We oversee ROW permits, ACI/IBC/ADA compliance, and schedule pours by wind, temperature, and maturity data. Lo