The Colorado Department of Transportation (CDOT) has completed a test of new remote avalanche control equipment near the Eisenhower Johnson Memorial Tunnels. The installation marks a change in how CDOT handles avalanche mitigation along the Interstate 70 Mountain Corridor.
The Wyssen Avalanche Control system, which was recently put in place, allows CDOT’s Winter Operations Team to perform avalanche mitigation without using the older World War II artillery that has been standard in the area. The system can be operated remotely, letting crews carry out their work at any time and improving safety for both workers and drivers by reducing risks and traffic disruptions.
“This technology represents a major advancement in how we keep I-70 open and safe during Colorado’s harsh winter storms,” said Brian Gorsage, CDOT’s avalanche program manager. “Remote Avalanche Control Systems allow our teams to work more safely, more efficiently and with far less disruption to drivers traveling this critical mountain corridor.”
The Wyssen technology works by deploying charges remotely to affect large areas of snowpack with fewer detonations compared to previous methods. According to CDOT, five Wyssen units are already operating in southern Colorado and have demonstrated success in enhancing both safety and operational speed.
With the new installation near the tunnels, CDOT will be able to mitigate avalanche hazards between mile points 211 and 218 before morning ski traffic begins—a task that previously required daylight when using traditional Howitzers. This is expected to decrease both the length and number of traffic holds needed for mitigation activities.
“This installation is part of our ongoing effort to strengthen safety and resiliency across Colorado’s mountain highways,” said Gorsage. “Remote Avalanche Control System technology allows us to protect both motorists and our teams while keeping traffic moving.”
