Five separate videos shot by CA DWR as the emergency spillway becomes active (overtops) at 8:a.m. on Saturday morning through Sunday p.m., and work on Monday to drop rock to fill the erosion channels. Most videos are from drones and the relationship of the spillway to the main spillway on the right (direction southeast) and the parking lot on the left (direction northwest) can be easily seen. It appears that the fear of failure of the emergency spillway was two-fold with erosion moving back up to the narrow base of the spillway and possibly undercutting the concrete spillway, and the...