The Colorado Springs Fire Department lifted a pre-evacuation warning Monday morning after firefighters contained a hazardous materials fire that began Sunday afternoon at Microchip Technology’s manufacturing site on East Cheyenne Mountain Boulevard.
How the incident unfolded
Fire officials said the incident was first reported at 2:54 p.m. Sunday at the Microchip facility, located at 1150 E. Cheyenne Mountain Blvd. Firefighters determined a cylinder containing silane gas had ignited inside the building. Because applying water directly to the flames could create additional hazards, crews adjusted their response to protect personnel and nearby residents.
- Time reported: 2:54 p.m. Sunday
- Location: 1150 E. Cheyenne Mountain Blvd.
- Substance involved: Silane gas
- Pre-evacuation issued: Shortly after 4 p.m. Sunday
- Pre-evacuation lifted: 10:50 a.m. Monday
Just after 4 p.m. Sunday, the Fire Department issued a pre-evacuation warning for the neighborhood between Venetucci Boulevard and Tenderfoot Hill Street, notifying residents to be ready to leave their homes if ordered. A small number of employees were evacuated from the building, and no injuries were reported, officials said.
Hazmat response and outcome
Hazardous materials specialists worked to keep the fire contained without introducing additional risks. Because of the properties of silane — a pyrophoric gas that can ignite spontaneously on contact with air — crews avoided applying water directly to the flames. Instead, they managed the scene so the fire could self-extinguish.
Crews determined the fire was out at about 1:50 a.m. Monday. After assessments confirmed that there was no active leak and conditions were safe, officials lifted the pre-evacuation warning at 10:50 a.m. Monday.
“After confirming conditions were safe and there was no active leak being detected, the pre-evacuation warning was lifted at 10:50 a.m. Monday.”
Local context and potential implications
The incident occurred at a time when the Microchip facility has been in the spotlight for workforce changes. Microchip laid off nearly 240 employees at its Colorado Springs plant in March 2024 and employed more than 1,250 people in 2023, according to previous reporting cited by local news outlets. While officials confirmed there were no injuries in this event, any emergency at a large manufacturing site raises questions about worker safety, neighborhood preparedness and the potential for longer-term operations impacts.
| Item | Detail |
|---|---|
| Facility | Microchip Technology, 1150 E. Cheyenne Mountain Blvd. |
| Substance | Silane gas |
| Pre-evacuation area | Between Venetucci Blvd. and Tenderfoot Hill St. |
| Reported injuries | None reported |
City and emergency officials did not indicate any longer-term evacuation or air quality advisories after the pre-evacuation warning ended. Residences near the facility were urged to follow instructions from first responders while the scene was active.
What residents should know
Residents who received the pre-evacuation warning should remain alert to official communications from the Colorado Springs Fire Department and other local authorities in case of future developments. The department’s handling of the incident illustrates standard hazmat protocol in industrial fires: protect responders, limit actions that could worsen the hazard and monitor the scene until specialists confirm it is safe.
Microchip officials have not released an on-the-record statement about the cause of the cylinder ignition or the operational impact to the plant. Local authorities said the investigation into the incident will continue as needed to determine any outstanding safety or procedural concerns.
For now, the immediate threat has passed: the fire is out, no injuries were reported and the pre-evacuation warning for the surrounding neighborhood has been lifted.
