Reservoir Storage Summary for River Basins on 2026-07-04

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
2026-07-04 2026-07-03 2026-07-02 2026-06-27 2026-06-04 2026-04-04 2026-01-04 2025-07-04
Brazos 89.5 89.5 89.6 89.9 89.3 85.3 86.5 93.4
Canadian 39.2 39.3 39.3 39.6 39.6 40.8 41.9 40.7
Colorado 63.9 63.9 64.0 64.5 63.4 59.7 62.1 45.5
Cypress 94.5 94.5 94.6 95.1 93.4 94.9 96.2 99.1
Guadalupe 62.9 62.9 63.0 63.3 60.7 60.2 62.8 50.4
Lavaca 98.5 98.6 98.8 99.9 98.5 50.7 63.5 99.5
Neches 77.3 77.3 77.3 77.1 76.3 75.7 72.6 97.3
Nueces 15.6 15.7 15.7 15.8 13.0 7.9 10.2 15.5
Red 93.1 93.1 93.2 93.8 91.6 90.7 91.1 96.0
Rio Grande 28.6 28.6 28.6 28.7 27.6 26.6 28.4 24.5
Sabine 95.5 95.5 95.6 96.0 94.2 90.6 87.4 98.5
San Antonio 9.0 9.0 9.0 8.9 4.0 3.9 4.7 2.5
San Jacinto 99.2 99.2 99.3 99.6 99.3 96.0 95.8 100.0
Sulphur 92.5 92.7 92.8 93.5 89.8 83.7 81.1 99.7
Trinity 96.4 96.4 96.5 96.8 96.0 95.4 93.5 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 89.5 3,257,233 3,199,911 3,576,076
Canadian 39.2 258,566 220,152 561,066
Colorado 63.9 2,624,549 2,567,414 4,019,576
Cypress 94.5 682,186 559,728 592,377
Guadalupe 62.9 257,823 257,752 409,821
Lavaca 98.5 161,735 156,522 158,975
Neches 77.3 2,716,436 2,687,104 3,477,212
Nueces 15.6 144,011 143,732 918,882
Red 93.1 3,722,035 2,303,778 2,474,646
Rio Grande 28.6 1,204,819 1,008,675 3,520,940
Sabine 95.5 5,854,627 3,692,741 3,868,328
San Antonio 9.0 22,914 22,914 254,823
San Jacinto 99.2 550,539 545,334 549,895
Sulphur 92.5 717,715 369,255 399,063
Trinity 96.4 6,660,694 6,531,026 6,776,855
**

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