Phase two of Oroville Dam’s primary spillway reconstruction is now underway. The California Department of Water Resources conducted controlled blasts to demolish temporary concrete used so the primary spillway could withstand the wet season. With summer now approaching, structural concrete will be placed on the upper part of the 730-foot spillway and the walls. The emergency spillway will also have roller-compacted concrete, as well as a splash pad at the bottom. DWR said it is on schedule for the primary spillway to be complete by the self-imposed Nov. 1 deadline. The emergency spillway will be completed in early 2019.