Yesterday when I drove by the spillway, the two end gates were cracked open. Didn't look like that much flow though. CC is currently full. TRWD does a good job of keeping the lake from rising too high, where it can flood docks, roads, yards, etc. Water released from the spillway goes into the Trinity and down to Lake Livingston.
TRWD is currently pumping about 90 mgd from CC and about twice that much from Richland Chambers, all going into Fort Worth. 150 mgd of that is going into Eagle Mountain.