Bois d'Arc Lake: 91.5% full as of 2026-09-13
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 | 2026-09-13 | 91.5 | 532.06 | 336,430 | 336,430 | 367,609 | 15,687 |
| Yesterday | 2026-09-12 | 91.6 | 532.09 | 336,912 | 336,912 | 367,609 | 15,700 |
| 2 days ago | 2026-09-11 | 91.8 | 532.13 | 337,555 | 337,555 | 367,609 | 15,717 |
| 1 week ago | 2026-09-06 | 92.5 | 532.29 | 340,127 | 340,127 | 367,609 | 15,786 |
| 1 month ago | 2026-08-13 | 96.1 | 533.10 | 353,145 | 353,145 | 367,609 | 16,137 |
| 3 months ago | 2026-06-13 | 99.7 | 533.93 | 366,484 | 366,484 | 367,609 | 16,496 |
| 6 months ago | 2026-03-13 | 90.0 | 531.71 | 330,696 | 330,696 | 367,609 | 15,525 |
| 1 year ago | 2025-09-13 | 94.9 | 532.83 | 348,805 | 348,805 | 367,609 | 16,020 |
*
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 | 2026-09-13 22:45 | 532.01 | 534.00 | -1.99 |
| 1 hour prior | 2026-09-13 21:45 | 532.02 | 534.00 | -1.98 |
| 2 hours prior | 2026-09-13 20:45 | 532.01 | 534.00 | -1.99 |
| 6 hours prior | 2026-09-13 16:45 | 532.04 | 534.00 | -1.96 |
| 12 hours prior | 2026-09-13 10:45 | 532.06 | 534.00 | -1.94 |
| 24 hours prior | 2026-09-12 22:45 | 532.05 | 534.00 | -1.95 |
| 48 hours prior | 2026-09-11 22:45 | 532.08 | 534.00 | -1.92 |
*
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)
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|
| Data Source | USGS:07332621 |
| USGS Monitoring Location | USGS:07332621 |
Lake Location
