Aquilla Lake: 100.0% full as of 2024-04-21

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

Historical Data

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2024-04-21 100.0 538.20 45,466 43,243 43,243 3,168
Yesterday 2024-04-20 100.0 538.06 45,024 43,243 43,243 3,150
2 days ago 2024-04-19 100.0 538.05 44,993 43,243 43,243 3,149
1 week ago 2024-04-14 100.0 538.04 44,961 43,243 43,243 3,148
1 month ago 2024-03-21 100.0 538.39 46,071 43,243 43,243 - n.a. -
3 months ago 2024-01-21 95.1 536.80 41,148 41,112 43,243 3,004
6 months ago 2023-10-21 72.6 533.24 31,431 31,395 43,243 2,452
1 year ago 2023-04-21 71.8 533.09 31,064 31,028 43,243 2,432
*

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

**

   Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.

Most Recent Instantaneous Water Level

Date/time Water Level
(ft)
Conservation Pool Elevation
(ft)
Height Above Conservation Pool
(ft)
Most recent 2024-04-21 22:30 538.37 537.50 0.87 into flood pool
1 hour prior 2024-04-21 21:30 538.37 537.50 0.87 into flood pool
2 hours prior 2024-04-21 20:30 538.36 537.50 0.86 into flood pool
6 hours prior 2024-04-21 16:30 538.32 537.50 0.82 into flood pool
12 hours prior 2024-04-21 10:30 538.22 537.50 0.72 into flood pool
24 hours prior 2024-04-20 22:30 538.10 537.50 0.60 into flood pool
48 hours prior 2024-04-19 22:30 538.04 537.50 0.54 into flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1983-01-01
Vertical datum NGVD29
Dead pool elevation 503.00 ft above NGVD29
Emergency spillway crest elevation 564.50 ft above NGVD29
Flood pool elevation 556.00 ft above NGVD29
Maximum design elevation 577.50 ft above NGVD29
Top of dam elevation 582.50 ft above NGVD29
Conservation pool elevation 537.50 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2008-03-01 (source: TWDB) : GIS Data
2014-07-01 (source: TWDB) : GIS Data
Data Source USGS:08093350

Lake Location