Bois d'Arc Lake: 92.0% full as of 2026-09-10
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 | 2026-09-10 | 92.0 | 532.16 | 338,037 | 338,037 | 367,609 | 15,730 |
| 1 day prior | 2026-09-09 | 92.1 | 532.19 | 338,520 | 338,520 | 367,609 | 15,743 |
| 2 days prior | 2026-09-08 | 92.3 | 532.23 | 339,162 | 339,162 | 367,609 | 15,760 |
| 1 week prior | 2026-09-03 | 92.8 | 532.36 | 341,252 | 341,252 | 367,609 | 15,817 |
| 1 month prior | 2026-08-10 | 96.5 | 533.21 | 354,913 | 354,913 | 367,609 | 16,184 |
| 3 months prior | 2026-06-10 | 94.6 | 532.76 | 347,680 | 347,680 | 367,609 | 15,990 |
| 6 months prior | 2026-03-10 | 89.5 | 531.61 | 329,051 | 329,051 | 367,609 | 15,478 |
| 1 year prior | 2025-09-10 | 95.1 | 532.88 | 349,609 | 349,609 | 367,609 | 16,042 |
*
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 | 2026-09-10 23:45 | 532.12 | 534.00 | -1.88 |
| 1 hour prior | 2026-09-10 22:45 | 532.14 | 534.00 | -1.86 |
| 2 hours prior | 2026-09-10 21:45 | 532.13 | 534.00 | -1.87 |
| 6 hours prior | 2026-09-10 17:45 | 532.13 | 534.00 | -1.87 |
| 12 hours prior | 2026-09-10 11:45 | 532.15 | 534.00 | -1.85 |
| 24 hours prior | 2026-09-09 23:45 | 532.17 | 534.00 | -1.83 |
| 48 hours prior | 2026-09-08 23:45 | 532.20 | 534.00 | -1.80 |
*
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
