San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 96.0% full on 2026-09-13

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-09-13 96.0 533,466 528,146 549,895
Yesterday 2026-09-12 96.1 533,967 528,532 549,895
2 days ago 2026-09-11 96.2 534,468 528,918 549,895
1 week ago 2026-09-06 96.3 534,322 529,691 549,895
1 month ago 2026-08-13 97.9 542,440 538,612 549,895
3 months ago 2026-06-13 99.1 549,831 544,741 549,895
6 months ago 2026-03-13 96.5 536,900 530,659 549,895
1 year ago 2025-09-13 99.5 551,664 546,918 549,895
*

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

Area 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)
Addicks 1 Flood Control - n.a. - 76.41 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 70.25 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 94.8 199.89 -1.11 395,855 395,828 417,577 19,294
Houston Water Supply 100.0 42.51 0.13 137,611 132,318 132,318 - n.a. -
footnotes
1

Addicks Reservoir is a flood control lake. It is not used for water supply and under normal conditions it is empty.

2

Barker Reservoir is a flood control lake. It is not used for water supply and under normal conditions it is empty.