Bois d'Arc Lake: 89.0% full as of 2026-09-30
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 | 2026-09-30 | 89.0 | 531.49 | 327,078 | 327,078 | 367,609 | 15,422 |
| Yesterday | 2026-09-29 | 89.0 | 531.50 | 327,242 | 327,242 | 367,609 | 15,427 |
| 2 days ago | 2026-09-28 | 89.2 | 531.54 | 327,900 | 327,900 | 367,609 | 15,445 |
| 1 week ago | 2026-09-23 | 90.0 | 531.73 | 331,025 | 331,025 | 367,609 | 15,535 |
| 1 month ago | 2026-08-30 | 93.4 | 532.50 | 343,502 | 343,502 | 367,609 | 15,877 |
| 3 months ago | 2026-06-30 | 100.0 | 534.51 | 376,289 | 367,609 | 367,609 | 16,759 |
| 6 months ago | 2026-03-30 | 88.1 | 531.29 | 323,788 | 323,788 | 367,609 | 15,328 |
| 1 year ago | 2025-09-30 | 93.7 | 532.55 | 344,305 | 344,305 | 367,609 | 15,899 |
*
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 | 2026-09-30 21:45 | 531.52 | 534.00 | -2.48 |
| 1 hour prior | 2026-09-30 20:45 | 531.54 | 534.00 | -2.46 |
| 2 hours prior | 2026-09-30 19:45 | 531.50 | 534.00 | -2.50 |
| 6 hours prior | 2026-09-30 15:45 | 531.51 | 534.00 | -2.49 |
| 12 hours prior | 2026-09-30 09:45 | 531.49 | 534.00 | -2.51 |
| 24 hours prior | 2026-09-29 21:45 | 531.48 | 534.00 | -2.52 |
| 48 hours prior | 2026-09-28 21:45 | 531.54 | 534.00 | -2.46 |
*
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 |
| USGS Monitoring Location | USGS:07332621 |
Lake Location
