Mountain Creek Lake: 98.5% full as of 2026-09-14
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 | 2026-09-14 | 98.5 | 456.85 | 22,508 | 22,508 | 22,850 | 2,661 |
| 1 day prior | 2026-09-13 | 98.7 | 456.87 | 22,554 | 22,554 | 22,850 | 2,666 |
| 2 days prior | 2026-09-12 | 98.8 | 456.88 | 22,577 | 22,577 | 22,850 | 2,668 |
| 1 week prior | 2026-09-07 | 99.4 | 456.94 | 22,714 | 22,714 | 22,850 | 2,682 |
| 1 month prior | 2026-08-14 | 100.0 | 457.20 | 23,312 | 22,850 | 22,850 | 2,743 |
| 3 months prior | 2026-06-14 | 100.0 | 458.08 | 26,050 | 22,850 | 22,850 | - n.a. - |
| 6 months prior | 2026-03-14 | 100.0 | 458.00 | 25,751 | 22,850 | 22,850 | - n.a. - |
| 1 year prior | 2025-09-14 | 100.0 | 457.48 | 24,052 | 22,850 | 22,850 | 2,815 |
*
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 | 2026-09-15 03:45 | 456.84 | 457.00 | -0.16 |
| 1 hour prior | 2026-09-15 02:45 | 456.84 | 457.00 | -0.16 |
| 2 hours prior | 2026-09-15 01:45 | 456.84 | 457.00 | -0.16 |
| 6 hours prior | 2026-09-14 21:45 | 456.86 | 457.00 | -0.14 |
| 12 hours prior | 2026-09-14 15:45 | 456.85 | 457.00 | -0.15 |
| 24 hours prior | 2026-09-14 03:45 | 456.86 | 457.00 | -0.14 |
| 48 hours prior | 2026-09-13 03:45 | 456.89 | 457.00 | -0.11 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1936-01-01 |
| Vertical datum | NGVD29 |
| Service spillway crest elevation | 431.00 ft above NGVD29 |
| Emergency spillway crest elevation | 458.00 ft above NGVD29 |
| Top of dam elevation | 467.00 ft above NGVD29 |
| Conservation pool elevation | 457.00 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:08050050 |
| USGS Monitoring Location | USGS:08050050 |
Lake Location
