Reservoir Storage Summary for River Basins on 2026-07-23

Definition Map for River Basins

Percent Full

Today Yesterday 2 days ago 1 week ago 1 month ago 3 months ago 6 months ago 1 year ago
2026-07-23 2026-07-22 2026-07-21 2026-07-16 2026-06-23 2026-04-23 2026-01-23 2025-07-23
Brazos 89.6 89.6 89.6 89.2 90.1 87.6 85.7 93.7
Canadian 38.7 38.7 38.8 38.9 39.6 40.3 41.7 42.0
Colorado 68.3 68.3 68.3 63.6 64.6 60.3 61.3 69.2
Cypress 94.5 94.7 94.9 95.1 95.0 96.8 95.4 98.7
Guadalupe 98.7 98.7 98.7 70.5 63.3 59.9 62.1 70.6
Lavaca 100.0 100.0 100.0 100.0 99.9 57.5 60.1 97.2
Neches 77.1 77.1 77.2 77.2 77.0 76.0 72.4 87.6
Nueces 16.5 15.2 14.9 15.1 15.0 7.8 9.7 14.9
Red 91.7 91.8 91.8 91.9 93.8 91.4 90.6 95.6
Rio Grande 33.3 33.2 32.9 28.5 28.6 27.6 28.6 25.9
Sabine 94.4 94.5 94.6 94.9 96.5 91.2 87.4 97.8
San Antonio 28.2 28.0 27.6 20.9 8.7 3.9 4.5 6.4
San Jacinto 99.4 99.5 99.5 100.0 99.5 93.5 95.8 99.8
Sulphur 91.1 91.3 91.5 92.1 93.4 86.2 79.2 99.3
Trinity 95.9 96.0 96.1 96.3 97.0 95.6 92.7 99.2
*

Percent Full is based on Conservation Storage and Conservation Capacity.

Recent Conditions

Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Brazos 89.6 3,276,322 3,202,672 3,576,076
Canadian 38.7 255,469 217,055 561,066
Colorado 68.3 2,834,862 2,744,423 4,019,576
Cypress 94.5 676,172 559,977 592,377
Guadalupe 98.7 408,162 404,621 409,821
Lavaca 100.0 164,897 158,975 158,975
Neches 77.1 2,709,117 2,679,841 3,477,212
Nueces 16.5 151,629 151,350 918,882
Red 91.7 3,635,463 2,268,967 2,474,646
Rio Grande 33.3 1,410,226 1,172,378 3,520,940
Sabine 94.4 5,790,957 3,652,787 3,868,328
San Antonio 28.2 71,877 71,877 254,823
San Jacinto 99.4 550,593 546,765 549,895
Sulphur 91.1 575,464 363,712 399,063
Trinity 95.9 6,585,513 6,497,413 6,776,855
**

The grey areas represent coastal basins that have no contributing reservoirs present.