SAR Staff, Hasty Team, SVU, and WCSAR responded to the Verdi entrance to Dog Valley on the report of multiple vehicles that were stuck on the Henness Pass Rd. A semi-truck accident on Interstate 80 had closed the freeway for hours, and people were attempting to get around the closed area by driving the road past Boca and Stampede, then east on Henness Pass Rd. As teams were heading up to Summit One, the first team, comprised of two Hasty trucks, ran into a CHP vehicle that stated he had assisted the six vehicles that were stuck and sent them down into Dog Valley to get to Highway 395. He had not checked all the way to the road that comes by Boca and Stampede, so a SVU team checked that area, but did not find any vehicles. Teams returned to staging.