Murvaul Lake: 88.0% full as of 2026-09-20

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 2026-09-20 88.0 263.93 33,693 33,693 38,285 3,271
Yesterday 2026-09-19 88.1 263.94 33,726 33,726 38,285 3,272
2 days ago 2026-09-18 88.3 263.97 33,824 33,824 38,285 3,276
1 week ago 2026-09-13 89.2 264.07 34,152 34,152 38,285 3,287
1 month ago 2026-08-20 92.1 264.40 35,243 35,243 38,285 3,326
3 months ago 2026-06-20 100.0 265.61 39,354 38,285 38,285 - n.a. -
6 months ago 2026-03-20 100.0 265.42 38,697 38,285 38,285 - n.a. -
1 year ago 2025-09-20 94.8 264.71 36,280 36,280 38,285 3,363
*

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 2026-09-20 00:00 263.93 265.30 -1.37
1 hour prior 2026-09-19 23:00 263.94 265.30 -1.36
2 hours prior 2026-09-19 22:00 263.94 265.30 -1.36
6 hours prior 2026-09-19 18:00 263.94 265.30 -1.36
12 hours prior 2026-09-19 12:00 263.95 265.30 -1.35
24 hours prior 2026-09-19 00:00 263.95 265.30 -1.35
48 hours prior 2026-09-18 00:00 263.98 265.30 -1.32
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1958-01-01
Vertical datum NGVD29
Dead pool elevation 235.00 ft above NGVD29
Service spillway crest elevation 265.30 ft above NGVD29
Top of dam elevation 280.00 ft above NGVD29
Conservation pool elevation 265.30 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1958-01-01 (source: USGS)
1998-11-01 (source: TWDB) : GIS Data
Data Source USGS:08022200
USGS Monitoring Location USGS:08022200

Lake Location