Dallas Area Reservoirs: Monitored Water Supply Reservoirs are 98.7% full on 2026-05-31

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-05-31 98.7 3,914,523 3,790,842 3,841,548
Yesterday 2026-05-30 98.7 3,916,060 3,791,093 3,841,548
2 days ago 2026-05-29 98.7 3,921,645 3,791,093 3,841,548
1 week ago 2026-05-24 98.7 3,897,660 3,791,344 3,841,548
1 month ago 2026-04-30 98.1 3,865,858 3,768,801 3,841,548
3 months ago 2026-02-28 95.5 3,742,361 3,667,185 3,841,548
6 months ago 2025-11-30 95.0 3,730,912 3,648,282 3,841,548
1 year ago 2025-05-31 100.0 4,114,200 3,840,504 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 91.6 401.05 -1.95 586,825 555,382 606,088 25,118
Grapevine Water Supply and Flood Control 100.0 535.67 0.67 167,538 163,064 163,064 - n.a. -
Lavon Water Supply and Flood Control 100.0 493.48 1.48 443,727 409,757 409,757 21,411
Lewisville Water Supply and Flood Control 100.0 522.29 0.29 606,763 563,228 563,228 - n.a. -
Ray Hubbard Water Supply 100.0 435.55 0.05 440,610 439,559 439,559 21,010
Ray Roberts Water Supply and Flood Control 100.0 632.63 0.13 792,182 788,167 788,167 - n.a. -
Tawakoni Water Supply 100.0 437.64 0.14 876,878 871,685 871,685 - n.a. -