San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 99.3% full on 2025-09-16

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-09-16 99.3 550,215 545,928 549,895
Yesterday 2025-09-15 99.3 550,413 546,126 549,895
2 days ago 2025-09-14 99.4 551,037 546,521 549,895
1 week ago 2025-09-09 99.7 554,745 548,504 549,895
1 month ago 2025-08-16 98.4 546,745 541,195 549,895
3 months ago 2025-06-16 100.0 570,056 549,895 549,895
6 months ago 2025-03-16 97.0 537,787 533,228 549,895
1 year ago 2024-09-16 98.3 544,663 540,605 549,895
*

 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. - 76.35 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 69.97 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 99.0 200.80 -0.20 413,637 413,610 417,577 19,786
Houston Water Supply 100.0 42.42 0.04 136,578 132,318 132,318 - 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.