Austin Area Reservoirs: Monitored Water Supply Reservoirs are 91.5% full on 2025-09-17

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Most recent 2025-09-17 91.5 2,075,104 2,043,489 2,232,539
1 day prior 2025-09-16 91.6 2,076,623 2,045,008 2,232,539
2 days prior 2025-09-15 91.7 2,078,714 2,047,034 2,232,539
1 week prior 2025-09-10 92.1 2,089,556 2,057,166 2,232,539
1 month prior 2025-08-17 94.1 2,138,416 2,101,532 2,232,539
3 months prior 2025-06-17 56.8 1,299,763 1,268,920 2,232,539
6 months prior 2025-03-17 53.7 1,229,204 1,198,361 2,232,539
1 year prior 2024-09-17 61.6 1,384,550 1,348,518 2,188,052
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

recent reservoir storage map

Reservoir Storage

Reservoir Type Percent Full Water Level
(ft) 		Height Above Conservation Pool
(ft) 		Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft) 		Surface Area
(acres)
Buchananas of 2025-09-17 Water Supply 96.4 1,018.61 -1.39 849,357 835,695 866,694 22,165
Georgetownas of 2025-09-17 Water Supply and Flood Control 85.2 786.50 -4.50 32,460 32,397 38,005 1,188
Stillhouse Hollowas of 2025-09-17 Water Supply and Flood Control 100.0 622.12 0.12 230,654 229,796 229,796 6,447
Travisas of 2025-09-17 Water Supply and Flood Control 86.1 672.56 -8.44 962,633 945,601 1,098,044 17,037