State Department of Water Resources officials said Wednesday reconstruction of the spillway is on track to reach the Nov. 1 deadline for a 100,000 cubic-feet per second flow capacity. “Nov. 1 is a major milestone but it is by no means the finish line,” said Jeanne Kuttel, chief engineer for DWR, in a press conference call. Contractor Kiewit Infrastructure West Co. has demolished most of the spillway for reconstruction this season, leaving just the top 730 feet intact and making patch repairs there, representatives reported.