Mansfield Dam manages downstream flow on the lower Colorado River. Releases climb after rainfall events to draw the lake back toward the conservation pool, and ease during drought to preserve supply. CFS (cubic feet per second) is the instantaneous discharge rate; gallons totals it across the day.

An acre-foot is enough water to cover one acre to a depth of one foot — about 326,000 gallons. Lake Travis itself holds roughly 1.1 million acre-feet at full pool. Data comes from the Lower Colorado River Authority's daily release reports.