Greenbelt Lake: 4.5% full as of 2026-10-06
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 | 2026-10-06 | 4.5 | 2,606.96 | 3,131 | 2,699 | 59,968 | 272 |
| 1 day prior | 2026-10-05 | 4.5 | 2,606.98 | 3,136 | 2,704 | 59,968 | 273 |
| 2 days prior | 2026-10-04 | 4.5 | 2,607.01 | 3,144 | 2,712 | 59,968 | 273 |
| 1 week prior | 2026-09-29 | 4.6 | 2,607.08 | 3,163 | 2,731 | 59,968 | 274 |
| 1 month prior | 2026-09-06 | 4.9 | 2,607.64 | 3,361 | 2,929 | 59,968 | 284 |
| 3 months prior | 2026-07-06 | 6.1 | 2,610.10 | 4,116 | 3,684 | 59,968 | 325 |
| 6 months prior | 2026-04-06 | 7.2 | 2,611.78 | 4,734 | 4,302 | 59,968 | 354 |
| 1 year prior | 2025-10-06 | 8.5 | 2,613.96 | 5,533 | 5,101 | 59,968 | 392 |
*
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 | 2026-10-07 03:30 | 2,606.94 | 2,664.00 | -57.06 |
| 1 hour prior | 2026-10-07 02:30 | 2,606.94 | 2,664.00 | -57.06 |
| 2 hours prior | 2026-10-07 01:30 | 2,606.94 | 2,664.00 | -57.06 |
| 6 hours prior | 2026-10-06 21:30 | 2,606.95 | 2,664.00 | -57.05 |
| 12 hours prior | 2026-10-06 15:30 | 2,606.94 | 2,664.00 | -57.06 |
| 24 hours prior | 2026-10-06 03:30 | 2,606.97 | 2,664.00 | -57.03 |
| 48 hours prior | 2026-10-05 03:30 | - n.a. - | - n.a. - | - n.a. - |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1968-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 2,590.00 ft above NGVD29 |
| Service spillway crest elevation | 2,664.00 ft above NGVD29 |
| Emergency spillway crest elevation | 2,674.00 ft above NGVD29 |
| Top of dam elevation | 2,686.00 ft above NGVD29 |
| Conservation pool elevation | 2,664.00 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:07299840 |
| USGS Monitoring Location | USGS:07299840 |
Lake Location
