Bois d'Arc Lake: 95.7% full as of 2026-08-15
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 | 2026-08-15 | 95.7 | 533.02 | 351,859 | 351,859 | 367,609 | 16,102 |
| Yesterday | 2026-08-14 | 95.8 | 533.05 | 352,341 | 352,341 | 367,609 | 16,115 |
| 2 days ago | 2026-08-13 | 96.1 | 533.10 | 353,145 | 353,145 | 367,609 | 16,137 |
| 1 week ago | 2026-08-08 | 96.8 | 533.27 | 355,877 | 355,877 | 367,609 | 16,210 |
| 1 month ago | 2026-07-15 | 100.0 | 534.14 | 369,992 | 367,609 | 367,609 | 16,590 |
| 3 months ago | 2026-05-15 | 88.0 | 531.27 | 323,459 | 323,459 | 367,609 | 15,319 |
| 6 months ago | 2026-02-15 | 89.3 | 531.56 | 328,229 | 328,229 | 367,609 | 15,455 |
| 1 year ago | 2025-08-15 | 96.9 | 533.29 | 356,198 | 356,198 | 367,609 | 16,219 |
*
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 | 2026-08-15 19:45 | 532.97 | 534.00 | -1.03 |
| 1 hour prior | 2026-08-15 18:45 | 532.98 | 534.00 | -1.02 |
| 2 hours prior | 2026-08-15 17:45 | 533.00 | 534.00 | -1.00 |
| 6 hours prior | 2026-08-15 13:45 | 532.99 | 534.00 | -1.01 |
| 12 hours prior | 2026-08-15 07:45 | 533.02 | 534.00 | -0.98 |
| 24 hours prior | 2026-08-14 19:45 | 532.99 | 534.00 | -1.01 |
| 48 hours prior | 2026-08-13 19:45 | 533.09 | 534.00 | -0.91 |
*
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
