The state Department of Water Resources announced plans on Friday to draw Lake Oroville down to 808 feet elevation by early next week. This is to provide a second point of access to the upper chute of the Oroville Dam spillway, through the radial gates, for construction. Water surpasses the radial gates when the lake reaches 813 feet elevation. “Construction activities on the upper chute of the spillway revealed bedrock conditions that require additional excavation,” the press release from DWR reads.