Edwards-Plateau Climate Division Reservoirs: Monitored Water Supply Reservoirs are 58.3% full on 2021-09-23

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2021-09-23 58.3 2,705,537 2,471,496 4,241,306
Yesterday 2021-09-22 58.4 2,708,299 2,475,249 4,241,306
2 days ago 2021-09-21 58.4 2,711,030 2,478,045 4,241,306
1 week ago 2021-09-16 58.7 2,719,385 2,488,931 4,241,306
1 month ago 2021-08-23 59.7 2,744,482 2,532,636 4,241,306
3 months ago 2021-06-23 58.5 2,643,566 2,479,457 4,241,306
6 months ago 2021-03-23 59.8 2,693,571 2,563,832 4,285,009
1 year ago 2020-09-23 62.4 2,761,737 2,647,725 4,241,306
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

Reservoir Storage

Reservoir 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)
Amistad 1 52.4 1,070.87 -46.13 1,157,066 964,897 1,840,849 29,483
Brady Creek 59.7 1,736.20 -6.80 18,834 17,212 28,808 1,460
Buchanan 93.1 1,015.39 -2.61 776,101 760,900 816,904 21,168
E V Spence 26.9 1,861.47 -36.53 139,126 139,126 517,272 6,345
Inks 92.0 887.06 -1.44 13,141 12,847 13,962 747
Lyndon B Johnson 96.5 824.76 -0.64 131,610 111,248 115,249 6,133
Marble Falls 98.9 736.36 -0.64 6,825 6,825 6,901 541
Nasworthy 86.1 1,871.26 -0.94 8,775 8,282 9,615 1,237
O C Fisher 6.7 1,866.88 -41.12 7,723 7,722 115,742 719
O H Ivie 56.9 1,536.63 -14.87 315,402 315,402 554,340 - n.a. -
Oak Creek 74.5 1,995.48 -4.52 29,377 29,227 39,210 1,919
Twin Buttes 53.6 1,928.36 -11.84 101,557 97,808 182,454 5,445
footnotes
1

Lake Amistad straddles the border of Texas and Mexico. By treaty, Texas has rights 56.2% of the total conservation capacity. The fraction of the actual storage that belongs to Texas is formally determined biweekly by the International Boundary Water Commission (IBWC). The IBWC is the legal repository of data related to this lake for treaty purposes and official versions of the datasets should be obtained directly from them. Conservation capacity is based on 56.2% of total conservation capacity. Conservation storage is based on the bi-weekly changing Texas fraction.