Reservoir Storage Summary for River Basins on 2026-04-01

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
2026-04-01 2026-03-31 2026-03-30 2026-03-25 2026-03-01 2026-01-01 2025-10-01 2025-04-01
Brazos 84.8 84.9 85.0 85.5 85.7 86.6 90.0 88.1
Canadian 40.9 40.9 40.9 41.0 41.4 41.9 43.0 36.4
Colorado 59.7 59.7 59.8 60.1 60.7 62.3 64.7 43.2
Cypress 94.1 94.1 94.1 94.4 93.4 96.2 97.1 99.2
Guadalupe 60.2 60.2 60.3 60.5 61.4 62.9 67.8 50.5
Lavaca 51.1 51.3 51.5 52.5 56.3 63.9 80.4 79.4
Neches 75.4 75.4 75.5 75.6 73.6 72.7 77.2 99.9
Nueces 8.0 8.0 8.0 8.2 8.9 10.2 12.4 17.6
Red 89.5 89.6 89.7 90.2 91.0 91.1 93.0 85.3
Rio Grande 26.9 27.0 27.1 27.4 28.4 28.3 28.0 22.1
Sabine 89.9 89.9 89.9 90.2 88.1 87.3 89.4 97.4
San Antonio 3.9 4.0 4.0 4.0 4.2 4.7 5.8 2.2
San Jacinto 95.5 95.6 95.6 96.0 96.0 95.7 98.0 99.9
Sulphur 83.0 83.1 83.2 83.7 84.7 81.3 89.2 100.0
Trinity 95.1 95.1 95.1 95.3 94.5 93.6 94.6 96.3
*

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 84.8 3,044,852 3,033,232 3,576,076
Canadian 40.9 267,670 229,256 561,066
Colorado 59.7 2,455,847 2,398,712 4,019,576
Cypress 94.1 651,070 531,691 565,174
Guadalupe 60.2 246,838 246,767 409,821
Lavaca 51.1 86,393 81,180 158,975
Neches 75.4 2,652,468 2,622,855 3,477,212
Nueces 8.0 73,664 73,385 918,882
Red 89.5 3,452,804 2,215,772 2,474,646
Rio Grande 26.9 1,047,303 948,044 3,520,940
Sabine 89.9 5,481,694 3,476,363 3,868,328
San Antonio 3.9 10,044 10,044 254,823
San Jacinto 95.5 529,206 525,378 549,895
Sulphur 83.0 400,954 331,263 399,063
Trinity 95.1 6,524,194 6,441,778 6,776,855
**

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