The slide originated on a hillside about 2,000 feet above Spirit Lake memorial Highway.
WSDOT is releasing more information about The State Route 504 slide this week. The slide originated on a hillside about 2,000 feet above Spirit Lake memorial Highway and covered the road with a large amount of rock, mud, ice and water, causing catastrophic damage to the bridge connecting people to Coldwater Lake and the Johnston Ridge Observatory. The closure is at milepost 43 near the Science and Learning Center in Coldwater. Transportation officials strongly encourage visitors to not venture beyond the closure location due to the severity of the unstable hillside – the closure is in place for everyone’s safety.