San-Jacinto River Basin Reservoirs: Monitored Water Supply Reservoirs are 100.0% full on 2026-06-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-06-18 100.0 565,410 549,895 549,895
Yesterday 2026-06-17 100.0 564,797 549,895 549,895
2 days ago 2026-06-16 100.0 557,403 549,895 549,895
1 week ago 2026-06-11 99.1 550,457 545,137 549,895
1 month ago 2026-05-18 97.7 541,939 537,079 549,895
3 months ago 2026-03-18 95.8 530,797 526,969 549,895
6 months ago 2025-12-18 96.5 534,981 530,465 549,895
1 year ago 2025-06-18 100.0 558,478 549,895 549,895
*

 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. - 87.94 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Barker 2 Flood Control - n.a. - 86.19 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
Conroe Water Supply 100.0 201.20 0.20 422,228 417,577 417,577 20,554
Houston Water Supply 100.0 42.99 0.61 143,182 132,318 132,318 - 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.