got side tracked here, as for the water flow it varies but generally I have found the gates are up from around 7 P.M. till around 2 P.M. the following afternoon with the water flowing. After that they lower them for a few hours. It really varies with the rain though. The fish are just rushed through the open areas under the gates. The only area's where they have prob's is above a pumping station or the siphons, where unfortunately they become fish bait.
Hope this helps ya.
Chet