Dallas Area Reservoirs: Monitored Water Supply Reservoirs are 94.2% full on 2025-12-18

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-12-18 94.2 3,688,852 3,617,482 3,840,521
Yesterday 2025-12-17 94.1 3,686,126 3,615,026 3,840,521
2 days ago 2025-12-16 94.1 3,685,182 3,614,353 3,840,521
1 week ago 2025-12-11 94.4 3,698,795 3,625,153 3,840,521
1 month ago 2025-11-18 92.1 3,607,319 3,537,030 3,840,521
3 months ago 2025-09-18 95.1 3,724,223 3,653,934 3,840,521
6 months ago 2025-06-18 100.0 4,207,149 3,840,521 3,840,521
1 year ago 2024-12-18 89.5 3,507,569 3,437,280 3,840,521
*

 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 88.6 400.27 -2.73 567,495 536,052 605,061 24,316
Grapevine Water Supply and Flood Control 99.8 534.96 -0.04 162,800 162,800 163,064 6,654
Lavon Water Supply and Flood Control 89.7 489.91 -2.09 370,344 367,503 409,757 19,767
Lewisville Water Supply and Flood Control 100.0 522.04 0.04 599,983 563,228 563,228 - n.a. -
Ray Hubbard Water Supply 93.8 434.17 -1.33 412,432 412,432 439,559 20,068
Ray Roberts Water Supply and Flood Control 96.7 631.58 -0.92 762,671 762,348 788,167 27,773
Tawakoni Water Supply 93.3 435.88 -1.62 813,127 813,119 871,685 35,417