Greenbelt Lake: 4.3% full as of 2026-11-08
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 | 2026-11-08 | 4.3 | 2,606.38 | 2,984 | 2,552 | 59,968 | 263 |
| Yesterday | 2026-11-07 | 4.3 | 2,606.40 | 2,989 | 2,557 | 59,968 | 263 |
| 2 days ago | 2026-11-06 | 4.3 | 2,606.42 | 2,994 | 2,562 | 59,968 | 263 |
| 1 week ago | 2026-11-01 | 4.3 | 2,606.55 | 3,029 | 2,597 | 59,968 | 265 |
| 1 month ago | 2026-10-08 | 4.5 | 2,606.91 | 3,119 | 2,687 | 59,968 | 271 |
| 3 months ago | 2026-08-08 | 5.5 | 2,608.74 | 3,726 | 3,294 | 59,968 | 301 |
| 6 months ago | 2026-05-08 | 6.7 | 2,611.07 | 4,468 | 4,036 | 59,968 | 343 |
| 1 year ago | 2025-11-08 | 8.0 | 2,613.26 | 5,241 | 4,809 | 59,968 | 379 |
*
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 | 2026-11-08 10:30 | 2,606.38 | 2,664.00 | -57.62 |
| 1 hour prior | 2026-11-08 09:30 | 2,606.37 | 2,664.00 | -57.63 |
| 2 hours prior | 2026-11-08 08:30 | 2,606.37 | 2,664.00 | -57.63 |
| 6 hours prior | 2026-11-08 04:30 | 2,606.38 | 2,664.00 | -57.62 |
| 12 hours prior | 2026-11-07 22:30 | 2,606.39 | 2,664.00 | -57.61 |
| 24 hours prior | 2026-11-07 10:30 | 2,606.40 | 2,664.00 | -57.60 |
| 48 hours prior | 2026-11-06 10:30 | 2,606.42 | 2,664.00 | -57.58 |
*
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)
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| Data Source | USGS:07299840 |
| USGS Monitoring Location | USGS:07299840 |
Lake Location
