Austin Area Reservoirs: Monitored Water Supply Reservoirs are 92.6% full on 2026-09-27

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-09-27 92.6 2,097,244 2,066,401 2,232,539
Yesterday 2026-09-26 92.7 2,099,518 2,068,675 2,232,539
2 days ago 2026-09-25 92.8 2,103,028 2,072,185 2,232,539
1 week ago 2026-09-20 93.5 2,117,579 2,086,736 2,232,539
1 month ago 2026-08-27 97.1 2,197,749 2,166,906 2,232,539
3 months ago 2026-06-27 93.1 2,127,355 2,078,857 2,232,539
6 months ago 2026-03-27 84.2 1,909,732 1,878,889 2,232,539
1 year ago 2025-09-27 90.6 2,053,939 2,022,710 2,232,539
*

 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)
Buchanan Water Supply 95.8 1,018.35 -1.65 843,600 829,938 866,694 22,118
Georgetown Water Supply and Flood Control 77.3 783.89 -7.11 29,450 29,387 38,005 1,119
Stillhouse Hollow Water Supply and Flood Control 96.4 620.71 -1.29 221,707 221,621 229,796 6,247
Travis Water Supply and Flood Control 89.7 674.86 -6.14 1,002,487 985,455 1,098,044 17,631