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