Lake Colorado City: 53.3% full as of 2026-09-16

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 2026-09-16 53.3 2,058.85 16,394 16,394 30,758 - n.a. -
1 day prior 2026-09-15 53.4 2,058.88 16,426 16,426 30,758 - n.a. -
2 days prior 2026-09-14 53.5 2,058.91 16,458 16,458 30,758 - n.a. -
1 week prior 2026-09-09 53.8 2,058.99 16,542 16,542 30,758 - n.a. -
1 month prior 2026-08-16 56.0 2,059.61 17,224 17,224 30,758 - n.a. -
3 months prior 2026-06-16 51.3 2,058.26 15,769 15,769 30,758 - n.a. -
6 months prior 2026-03-16 54.1 2,059.07 16,630 16,630 30,758 - n.a. -
1 year prior 2025-09-16 60.2 2,060.75 18,508 18,508 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 2026-09-16 23:00 2,058.83 2,070.20 -11.37
1 hour prior 2026-09-16 22:00 2,058.84 2,070.20 -11.36
2 hours prior 2026-09-16 21:00 2,058.83 2,070.20 -11.37
6 hours prior 2026-09-16 17:00 2,058.86 2,070.20 -11.34
12 hours prior 2026-09-16 11:00 2,058.85 2,070.20 -11.35
24 hours prior 2026-09-15 23:00 2,058.87 2,070.20 -11.33
48 hours prior 2026-09-14 23:00 2,058.88 2,070.20 -11.32
*

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

Historical Rating Curve
Data Source USGS:08123000
USGS Monitoring Location USGS:08123000

Lake Location