Toledo Bend Reservoir: 88.1% full as of 2026-09-10
Toledo Bend Reservoir straddles the border of Texas and Louisiana, Texas has rights to 50% of Toledo Bend Reservoir's total conservation capacity. Percent full, conservation storage and conservation capacity are based on the Texas share.
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 | 2026-09-10 | 88.1 | 168.76 | 3,944,467 | 1,970,184 | 2,236,450 | 166,967 |
| Yesterday | 2026-09-09 | 88.1 | 168.77 | 3,946,178 | 1,971,039 | 2,236,450 | 167,015 |
| 2 days ago | 2026-09-08 | 88.2 | 168.80 | 3,951,311 | 1,973,606 | 2,236,450 | 167,159 |
| 1 week ago | 2026-09-03 | 88.3 | 168.81 | 3,953,009 | 1,974,454 | 2,236,450 | 167,208 |
| 1 month ago | 2026-08-10 | 90.4 | 169.37 | 4,045,804 | 2,020,852 | 2,236,450 | 169,863 |
| 3 months ago | 2026-06-10 | 92.1 | 169.82 | 4,121,446 | 2,058,673 | 2,236,450 | 171,972 |
| 6 months ago | 2026-03-10 | 85.8 | 168.15 | 3,843,340 | 1,919,620 | 2,236,450 | 164,176 |
| 1 year ago | 2025-09-10 | 87.1 | 168.49 | 3,898,531 | 1,947,216 | 2,236,450 | 165,704 |
*
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 21:45 | 168.75 | 172.00 | -3.25 |
| 1 hour prior | 2026-09-10 20:45 | 168.73 | 172.00 | -3.27 |
| 2 hours prior | 2026-09-10 19:45 | 168.70 | 172.00 | -3.30 |
| 6 hours prior | 2026-09-10 15:45 | 168.74 | 172.00 | -3.26 |
| 12 hours prior | 2026-09-10 09:45 | 168.77 | 172.00 | -3.23 |
| 24 hours prior | 2026-09-09 21:45 | 168.74 | 172.00 | -3.26 |
| 48 hours prior | 2026-09-08 21:45 | 168.82 | 172.00 | -3.18 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1969-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 100.00 ft above NGVD29 |
| Service spillway crest elevation | 145.00 ft above NGVD29 |
| Emergency spillway crest elevation | 173.00 ft above NGVD29 |
| Maximum design elevation | 175.30 ft above NGVD29 |
| Top of dam elevation | 185.00 ft above NGVD29 |
| Conservation pool elevation | 172.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1974-10-01 (source: TWDB)
|
|
| Data Source | USGS:08025350 |
| USGS Monitoring Location | USGS:08025350 |
Lake Location
