Dallas Area Reservoirs: Monitored Water Supply Reservoirs are 98.2% full on 2026-07-11

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2026-07-11 98.2 3,862,071 3,772,767 3,841,548
Yesterday 2026-07-10 98.2 3,863,306 3,773,383 3,841,548
2 days ago 2026-07-09 98.3 3,871,019 3,776,265 3,841,548
1 week ago 2026-07-04 98.5 3,905,787 3,783,209 3,841,548
1 month ago 2026-06-11 98.8 4,000,187 3,796,613 3,841,548
3 months ago 2026-04-11 97.8 3,881,857 3,758,439 3,841,548
6 months ago 2026-01-11 93.2 3,649,162 3,578,873 3,841,548
1 year ago 2025-07-11 99.9 3,943,977 3,838,968 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)
Forkas of 2026-07-10 Water Supply 90.5 400.77 -2.23 579,828 548,385 606,088 24,863
Grapevineas of 2026-07-10 Water Supply and Flood Control 100.0 535.07 0.07 163,526 163,064 163,064 - n.a. -
Lavon Water Supply and Flood Control 100.0 492.00 0.00 412,598 409,757 409,757 20,622
Lewisvilleas of 2026-07-10 Water Supply and Flood Control 100.0 522.39 0.39 609,488 563,228 563,228 - n.a. -
Ray Hubbard Water Supply 98.1 435.09 -0.41 431,069 431,069 439,559 20,503
Ray Robertsas of 2026-07-10 Water Supply and Flood Control 100.0 632.78 0.28 796,457 788,167 788,167 - n.a. -
Tawakonias of 2026-07-10 Water Supply 99.7 437.43 -0.07 869,105 869,097 871,685 37,021