New Terrell City Lake: 23.6% full as of 2026-10-28
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 | 2026-10-28 | 23.6 | 493.27 | 2,040 | 2,029 | 8,583 | 354 |
| 1 day prior | 2026-10-27 | 23.7 | 493.28 | 2,044 | 2,033 | 8,583 | 355 |
| 2 days prior | 2026-10-26 | 23.7 | 493.29 | 2,047 | 2,036 | 8,583 | 355 |
| 1 week prior | 2026-10-21 | 23.9 | 493.34 | 2,065 | 2,054 | 8,583 | 357 |
| 1 month prior | 2026-09-28 | 24.0 | 493.35 | 2,069 | 2,058 | 8,583 | 357 |
| 3 months prior | 2026-07-28 | 30.0 | 494.72 | 2,589 | 2,578 | 8,583 | 405 |
| 6 months prior | 2026-04-28 | 28.0 | 494.27 | 2,411 | 2,400 | 8,583 | 387 |
| 1 year prior | 2025-10-28 | 25.6 | 493.73 | 2,207 | 2,196 | 8,583 | 369 |
*
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 | 2026-10-28 23:45 | 493.27 | 504.00 | -10.73 |
| 1 hour prior | 2026-10-28 22:45 | 493.27 | 504.00 | -10.73 |
| 2 hours prior | 2026-10-28 21:45 | 493.27 | 504.00 | -10.73 |
| 6 hours prior | 2026-10-28 17:45 | 493.27 | 504.00 | -10.73 |
| 12 hours prior | 2026-10-28 11:45 | 493.27 | 504.00 | -10.73 |
| 24 hours prior | 2026-10-27 23:45 | 493.27 | 504.00 | -10.73 |
| 48 hours prior | 2026-10-26 23:45 | 493.28 | 504.00 | -10.72 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1955-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 481.00 ft above NGVD29 |
| Service spillway crest elevation | 508.80 ft above NGVD29 |
| Emergency spillway crest elevation | 509.80 ft above NGVD29 |
| Top of dam elevation | 514.20 ft above NGVD29 |
|
Conservation pool elevation |
504.00 ft above NGVD29 |
|
Conservation pool elevation |
504.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1997-05-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08062730 |
| USGS Monitoring Location | USGS:08062730 |
Lake Location
