Structure fire on 6th Street in Rancho Cucamonga Heard on: San Bernardino County CA Fire Dispatch 00:09 Structure fire, medic engine 175, (number withheld), 6th Street between Archibald Avenue and Lucas Ranch Road. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. Structure fire, medic engine 175, (number withheld), 6th Street between Archibald Avenue and Lucas Ranch Road. 2026-10-22 08:58 UTC Fire 6th St, Rancho Cucamonga, CA 91730 View on map