Austin Area Reservoirs: Monitored Water Supply Reservoirs are 93.4% full on 2026-09-22

Historical Data

Date Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Today 2026-09-22 93.4 2,115,155 2,084,312 2,232,539
Yesterday 2026-09-21 93.4 2,115,304 2,084,461 2,232,539
2 days ago 2026-09-20 93.5 2,117,579 2,086,736 2,232,539
1 week ago 2026-09-15 94.2 2,134,957 2,104,114 2,232,539
1 month ago 2026-08-22 97.7 2,211,442 2,180,599 2,232,539
3 months ago 2026-06-22 93.0 2,130,465 2,077,337 2,232,539
6 months ago 2026-03-22 84.5 1,917,781 1,886,938 2,232,539
1 year ago 2025-09-22 91.0 2,062,811 2,031,647 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 96.1 1,018.48 -1.52 846,477 832,815 866,694 22,141
Georgetown Water Supply and Flood Control 78.4 784.25 -6.75 29,854 29,791 38,005 1,128
Stillhouse Hollow Water Supply and Flood Control 97.0 620.91 -1.09 222,959 222,873 229,796 6,273
Travis Water Supply and Flood Control 90.7 675.46 -5.54 1,013,109 996,077 1,098,044 17,774