Dallas Area Reservoirs: Monitored Water Supply Reservoirs are 96.3% full on 2026-07-31

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-07-31 96.3 3,769,943 3,699,654 3,841,548
Yesterday 2026-07-30 96.5 3,775,657 3,705,368 3,841,548
2 days ago 2026-07-29 96.6 3,782,178 3,711,889 3,841,548
1 week ago 2026-07-24 97.4 3,813,830 3,742,615 3,841,548
1 month ago 2026-06-30 98.6 3,940,124 3,788,459 3,841,548
3 months ago 2026-04-30 98.1 3,865,574 3,768,801 3,841,548
6 months ago 2026-01-31 93.0 3,641,513 3,571,224 3,841,548
1 year ago 2025-07-31 98.6 3,857,892 3,787,324 3,841,548
*

 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)
Fork Water Supply 87.9 400.14 -2.86 564,344 532,901 606,088 24,291
Grapevine Water Supply and Flood Control 99.5 534.87 -0.13 162,208 162,208 163,064 6,567
Lavon Water Supply and Flood Control 96.1 491.21 -0.79 396,446 393,605 409,757 20,284
Lewisville Water Supply and Flood Control 97.3 521.44 -0.56 583,886 548,212 563,228 26,615
Ray Hubbard Water Supply 96.1 434.67 -0.83 422,514 422,514 439,559 20,264
Ray Roberts Water Supply and Flood Control 99.3 632.30 -0.20 782,828 782,505 788,167 28,232
Tawakoni Water Supply 98.4 437.12 -0.38 857,717 857,709 871,685 36,554