Reservoir Storage Summary for River Basins on 2026-07-16

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
2026-07-16 2026-07-15 2026-07-14 2026-07-09 2026-06-16 2026-04-16 2026-01-16 2025-07-16
Brazos 89.1 89.1 89.0 89.2 89.9 87.0 86.0 93.9
Canadian 39.0 39.0 39.0 39.1 39.7 40.5 41.8 41.5
Colorado 63.2 63.2 63.2 63.5 64.0 60.1 61.5 68.2
Cypress 95.1 95.1 95.1 95.1 94.9 96.7 96.0 99.0
Guadalupe 66.8 63.3 62.6 62.6 62.6 59.7 62.3 68.5
Lavaca 100.0 98.8 97.2 97.2 98.3 54.8 61.3 99.0
Neches 77.1 77.1 77.0 77.0 76.5 76.0 72.6 91.2
Nueces 15.1 15.2 15.2 15.5 14.1 7.7 9.9 15.0
Red 91.9 91.9 92.0 92.8 93.9 91.0 90.9 95.9
Rio Grande 28.4 28.4 28.2 28.3 27.8 27.2 28.6 25.6
Sabine 95.0 95.1 95.1 95.0 95.8 91.3 87.3 97.8
San Antonio 19.6 12.9 9.3 9.0 5.3 3.8 4.6 5.6
San Jacinto 100.0 100.0 100.0 98.7 100.0 93.3 95.8 100.0
Sulphur 92.2 92.2 92.2 92.2 92.2 85.8 80.2 99.7
Trinity 96.3 96.3 96.3 96.0 96.9 95.5 93.0 99.6
*

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 89.1 3,264,524 3,185,965 3,576,076
Canadian 39.0 257,187 218,773 561,066
Colorado 63.2 2,596,969 2,539,834 4,019,576
Cypress 95.1 691,643 563,545 592,377
Guadalupe 66.8 273,748 273,677 409,821
Lavaca 100.0 165,000 158,975 158,975
Neches 77.1 2,711,487 2,682,169 3,477,212
Nueces 15.1 139,380 139,101 918,882
Red 91.9 3,665,051 2,275,380 2,474,646
Rio Grande 28.4 1,193,951 998,847 3,520,940
Sabine 95.0 5,826,879 3,676,622 3,868,328
San Antonio 19.6 50,061 50,061 254,823
San Jacinto 100.0 573,721 549,895 549,895
Sulphur 92.2 614,710 367,938 399,063
Trinity 96.3 6,645,263 6,524,303 6,776,855
**

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