Lost Creek Reservoir: 92.6% full as of 2026-07-30

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 2026-07-30 92.6 1,007.25 11,070 11,070 11,950 - n.a. -
Yesterday 2026-07-29 92.7 1,007.27 11,077 11,077 11,950 - n.a. -
2 days ago 2026-07-28 92.8 1,007.30 11,087 11,087 11,950 - n.a. -
1 week ago 2026-07-23 93.3 1,007.47 11,144 11,144 11,950 - n.a. -
1 month ago 2026-06-30 94.9 1,008.04 11,338 11,338 11,950 - n.a. -
3 months ago 2026-04-30 95.5 1,008.21 11,409 11,409 11,950 - n.a. -
6 months ago 2026-01-30 93.6 1,007.58 11,180 11,180 11,950 - n.a. -
1 year ago 2025-07-30 96.5 1,008.50 11,530 11,530 11,950 - n.a. -
*

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 2026-07-30 15:15 1,007.24 1,009.50 -2.26
1 hour prior 2026-07-30 14:15 1,007.24 1,009.50 -2.26
2 hours prior 2026-07-30 13:15 1,007.25 1,009.50 -2.25
6 hours prior 2026-07-30 09:15 1,007.25 1,009.50 -2.25
12 hours prior 2026-07-30 03:15 1,007.25 1,009.50 -2.25
24 hours prior 2026-07-29 15:15 1,007.27 1,009.50 -2.23
48 hours prior 2026-07-28 15:15 1,007.30 1,009.50 -2.20
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1991-01-01
Vertical datum NGVD29
Top of dam elevation 1,028.90 ft above NGVD29
Conservation pool elevation 1,009.50 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

Historical Rating Curve
Data Source USGS:08042820
USGS Monitoring Location USGS:08042820

Lake Location