Lake Colorado City: 38.4% full as of 2020-10-21

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 2020-10-21 38.4 2,054.19 11,816 11,816 30,758 - n.a. -
1 day prior 2020-10-20 38.4 2,054.20 11,825 11,825 30,758 - n.a. -
2 days prior 2020-10-19 38.5 2,054.21 11,834 11,834 30,758 - n.a. -
1 week prior 2020-10-14 38.7 2,054.28 11,898 11,898 30,758 - n.a. -
1 month prior 2020-09-21 39.7 2,054.62 12,207 12,207 30,758 - n.a. -
3 months prior 2020-07-21 38.7 2,054.28 11,898 11,898 30,758 - n.a. -
6 months prior 2020-04-21 44.3 2,056.14 13,630 13,630 30,758 - n.a. -
1 year prior 2019-10-21 45.9 2,056.64 14,120 14,120 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 2020-10-21 23:00 2,054.18 2,070.20 -16.02 below flood pool
1 hour prior 2020-10-21 22:00 2,054.18 2,070.20 -16.02 below flood pool
2 hours prior 2020-10-21 21:00 2,054.18 2,070.20 -16.02 below flood pool
6 hours prior 2020-10-21 17:00 2,054.19 2,070.20 -16.01 below flood pool
12 hours prior 2020-10-21 11:00 2,054.20 2,070.20 -16.00 below flood pool
24 hours prior 2020-10-20 23:00 2,054.19 2,070.20 -16.01 below flood pool
48 hours prior 2020-10-19 23:00 2,054.22 2,070.20 -15.98 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1949-01-01
Vertical datum NGVD29
Gauge USGS:08123000
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

Lake Location