Navarro Mills Lake: 77.8% full as of 2026-10-02
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 | 2026-10-02 | 77.8 | 422.03 | 38,759 | 38,758 | 49,827 | 4,282 |
| Yesterday | 2026-10-01 | 77.4 | 421.98 | 38,545 | 38,544 | 49,827 | 4,274 |
| 2 days ago | 2026-09-30 | 76.9 | 421.93 | 38,331 | 38,330 | 49,827 | 4,266 |
| 1 week ago | 2026-09-25 | 78.0 | 422.05 | 38,844 | 38,843 | 49,827 | 4,285 |
| 1 month ago | 2026-09-02 | 83.2 | 422.65 | 41,443 | 41,442 | 49,827 | 4,377 |
| 3 months ago | 2026-07-02 | 98.4 | 424.33 | 49,030 | 49,029 | 49,827 | 4,671 |
| 6 months ago | 2026-04-02 | 95.1 | 423.98 | 47,408 | 47,407 | 49,827 | 4,600 |
| 1 year ago | 2025-10-02 | 97.3 | 424.21 | 48,471 | 48,470 | 49,827 | 4,645 |
*
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 | 2026-10-02 16:00 | 422.02 | 424.50 | -2.48 |
| 1 hour prior | 2026-10-02 15:00 | 422.03 | 424.50 | -2.47 |
| 2 hours prior | 2026-10-02 14:00 | 422.03 | 424.50 | -2.47 |
| 6 hours prior | 2026-10-02 10:00 | 422.02 | 424.50 | -2.48 |
| 12 hours prior | 2026-10-02 04:00 | 422.03 | 424.50 | -2.47 |
| 24 hours prior | 2026-10-01 16:00 | 422.02 | 424.50 | -2.48 |
| 48 hours prior | 2026-09-30 16:00 | - n.a. - | - n.a. - | - n.a. - |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1963-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 400.00 ft above NGVD29 |
| Service spillway crest elevation | 414.00 ft above NGVD29 |
| Top of flood gate elevation | 443.00 ft above NGVD29 |
| Emergency spillway crest elevation | 443.00 ft above NGVD29 |
| Flood pool elevation | 443.00 ft above NGVD29 |
| Maximum design elevation | 451.90 ft above NGVD29 |
| Top of dam elevation | 457.00 ft above NGVD29 |
| Conservation pool elevation | 424.50 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2008-04-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08063050 |
| USGS Monitoring Location | USGS:08063050 |
Lake Location
