Lake Arlington: 100.0% full as of 2024-03-28

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)
Most recent 2024-03-28 100.0 550.22 40,612 40,157 40,157 - n.a. -
1 day prior 2024-03-27 100.0 550.29 40,747 40,157 40,157 - n.a. -
2 days prior 2024-03-26 100.0 550.36 40,882 40,157 40,157 - n.a. -
1 week prior 2024-03-21 100.0 550.21 40,593 40,157 40,157 - n.a. -
1 month prior 2024-02-28 99.5 549.90 39,996 39,964 40,157 1,921
3 months prior 2023-12-28 100.0 550.50 41,153 40,157 40,157 - n.a. -
6 months prior 2023-09-28 78.8 545.45 31,670 31,638 40,157 1,829
1 year prior 2023-03-28 99.8 549.96 40,111 40,079 40,157 1,924
*

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 2024-03-29 04:15 550.19 550.00 0.19
1 hour prior 2024-03-29 03:15 550.19 550.00 0.19
2 hours prior 2024-03-29 02:15 550.18 550.00 0.18
6 hours prior 2024-03-28 22:15 550.20 550.00 0.20
12 hours prior 2024-03-28 16:15 550.23 550.00 0.23
24 hours prior 2024-03-28 04:15 550.24 550.00 0.24
48 hours prior 2024-03-27 04:15 550.31 550.00 0.31
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1957-01-01
Vertical datum NGVD29
Dead pool elevation 505.00 ft above NGVD29
Service spillway crest elevation 550.00 ft above NGVD29
Emergency spillway crest elevation 559.70 ft above NGVD29
Top of dam elevation 577.50 ft above NGVD29
Conservation pool elevation 550.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1957-01-01 (source: USGS)
2007-12-01 (source: TWDB) : GIS Data
Data Source USGS:08049200

Lake Location