Bois d'Arc Lake: 87.4% full as of 2025-02-21

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)
Most recent 2025-02-21 87.4 531.13 321,156 321,156 367,609 15,253
1 day prior 2025-02-20 87.3 531.11 320,827 320,827 367,609 15,244
2 days prior 2025-02-19 87.3 531.12 320,992 320,992 367,609 15,249
1 week prior 2025-02-14 87.6 531.19 322,143 322,143 367,609 15,282
1 month prior 2025-01-21 82.4 530.03 303,063 303,063 367,609 14,738
3 months prior 2024-11-21 84.9 530.59 312,274 312,274 367,609 15,000
6 months prior 2024-08-21 93.7 532.56 344,466 344,466 367,609 15,903
1 year prior 2024-02-21 71.7 527.07 263,572 263,572 367,609 13,299
*

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 2025-02-21 23:45 531.13 534.00 -2.87
1 hour prior 2025-02-21 22:45 531.13 534.00 -2.87
2 hours prior 2025-02-21 21:45 531.14 534.00 -2.86
6 hours prior 2025-02-21 17:45 531.13 534.00 -2.87
12 hours prior 2025-02-21 11:45 531.11 534.00 -2.89
24 hours prior 2025-02-20 23:45 531.10 534.00 -2.90
48 hours prior 2025-02-19 23:45 531.13 534.00 -2.87
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 2021-04-14
Vertical datum NAVD88
Service spillway crest elevation 534.00 ft above NAVD88
Emergency spillway crest elevation 540.00 ft above NAVD88
Maximum design elevation 550.00 ft above NAVD88
Top of dam elevation 553.00 ft above NAVD88
Conservation pool elevation 534.00 ft above NAVD88
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2021-04-14 (source: NTMWD)
Data Source USGS:07332621

Lake Location