Lake Colorado City: 69.5% full as of 2025-04-27

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2025-04-27 69.5 2,063.12 21,367 21,367 30,758 - n.a. -
1 day prior 2025-04-26 69.5 2,063.13 21,379 21,379 30,758 - n.a. -
2 days prior 2025-04-25 69.5 2,063.14 21,392 21,392 30,758 - n.a. -
1 week prior 2025-04-20 69.8 2,063.20 21,469 21,469 30,758 - n.a. -
1 month prior 2025-03-27 70.1 2,063.27 21,559 21,559 30,758 - n.a. -
3 months prior 2025-01-27 72.8 2,063.91 22,378 22,378 30,758 - n.a. -
6 months prior 2024-10-27 75.1 2,064.45 23,087 23,087 30,758 - n.a. -
1 year prior 2024-04-27 46.4 2,056.80 14,277 14,277 30,758 - 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 2025-04-27 21:00 2,063.11 2,070.20 -7.09
1 hour prior 2025-04-27 20:00 2,063.12 2,070.20 -7.08
2 hours prior 2025-04-27 19:00 2,063.12 2,070.20 -7.08
6 hours prior 2025-04-27 15:00 2,063.13 2,070.20 -7.07
12 hours prior 2025-04-27 09:00 2,063.12 2,070.20 -7.08
24 hours prior 2025-04-26 21:00 2,063.12 2,070.20 -7.08
48 hours prior 2025-04-25 21:00 2,063.14 2,070.20 -7.06
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1949-01-01
Vertical datum NGVD29
Dead pool elevation 2,024.30 ft above NGVD29
Service spillway crest elevation 2,070.20 ft above NGVD29
Emergency spillway crest elevation 2,073.40 ft above NGVD29
Top of dam elevation 2,090.00 ft above NGVD29
Conservation pool elevation 2,070.20 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

Data Source USGS:08123000

Lake Location