The city enlarged the pool and built the surrounding sidewalks in the 1920s, creating "the finest municipal resort in the entire southwest." It also built two permanent bath houses—a two-story wooden structure in 1922 that washed away in the flood of 1935 and the current limestone building in 1946. An average of 26 million gallons of water issue from the Edwards Aquifer through the springs each day at a stable and chilly 68° F.