The Colorado Department of Transportation (CDOT) has completed testing of a new Remote Avalanche Control System on the east side of the Eisenhower Johnson Memorial Tunnels. The move is aimed at updating avalanche mitigation operations along the Interstate 70 Mountain Corridor.
The Wyssen Avalanche Control systems, which have been newly installed, allow CDOT’s Winter Operations Team to conduct avalanche mitigation remotely. This eliminates the need for World War II-era artillery that was previously used in this area. The remote capability means crews can perform their work at any time, reducing both safety risks and traffic disruptions for travelers.
“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 uses charges that are deployed remotely and can impact large sections of snowpack with fewer detonations compared to traditional artillery methods. CDOT already operates five Wyssen units in southern Colorado; these have shown positive results by improving safety and operational speed.
With the installation near the Eisenhower Johnson Memorial Tunnels, CDOT will be able to address avalanche hazards between mile points 211 and 218 before ski traffic begins each morning. This was not possible with previous equipment, which required daylight for use. The new system is expected to reduce both how long and how often traffic is held up during mitigation efforts.
“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.”
