Rockslide on Lake Diablo Not Affecting Dam Operations

A large rockslide buried an access road from the National Park Service boat landing on Diablo Lake sometime Sunday night or early Monday morning, but is not interfering with operations at any of Seattle City Light's three hydroelectric dams.

A large rockslide buried an access road from the National Park Service boat landing on Diablo Lake sometime Sunday night or early Monday morning, but is not interfering with operations at any of Seattle City Light’s three hydroelectric dams.

Rubble from the rockslide at Diablo Lake.

The slide occurred downstream from the Ross Dam powerhouse. Seattle City Light has a geotechnical engineer and environmental affairs specialists on site to monitor the slide and determine next steps.

A pickup owned by Ross Lake Resort that had been parked near the dock was hit by the slide. No one was inside the vehicle.

The Skagit Hydroelectric Project produces about 17 percent of the electricity for Seattle City Light’s customers.

A pickup parked near the National Park Service boat landing was hit by the rockslide.