Soft muddy bottom, some shallows near the banks. Keep clear of the dam. Built in 2005 as a reservoir so the water is clean. The lake is quite small so constant vigilance is required.
Rigging areas depend on what side of the lake you are on. There are a few nice grassy areas to rig that are free of trees/away from parking. Very few people crowding the lake, most people found in summer months.
About 20 minutes north of Austin, very convenient. From Austin: go North on IH-35 and exit at 1825 (Pflugerville exit). Drive east on 1825 through Pflugerville until you get to Weiss Lane and then take a left. Drive until you get to Kelly Lane and take another left. The neighborhood park and lake will be on the left off Kelly Lane.