 Hollywood. Traffic. Powered by Beacon Plumbing. Stop freaking. Call Beacon. KBOI. Traffic. The Snake River Stampede. Get set for heart-pounding action. Jaw-dropping spills and edge-of-your-seat thrills. They're not just a rodeo. They're the wildest, fastest show on Earth. The Snake River Stampede, July 16th through the 20th. On the eastbound lanes of the freeway, some congested traffic starts right about 11th Avenue and continues about a mile past Garrity.