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This is the "Water Nerd" page! This page contains all kinds of information about today's water levels compared to historic
levels, that only data nerds will appreciate.
Pueblo Reservoir has a maximum capacity of 357700 acre-feet at an elevation of 4898.7 feet above see level. However federal
rules state that the reservoir can't hold more than 257000 acre-feet after April 15 to ensure the dam can contain a flood.
Detailed Pueblo Reservoir Status
July 01 2025 Water Level
Today's elevation is 4876.22 feet above sea level, 227424 acre-feet, 63.70% capacity. This is...
0.96 inches lower and 334 acre-feet less than yesterday. The average decrease for this time of year is 0.31 inches. 6.00 inches lower and 2098 acre-feet less than last week. 3.96 inches higher and 1377 acre-feet more than last month. 42.00 inches lower and 15028 acre-feet less than than last year.
For 2025...
The lake reached its peak of 4883.3 ft elevation and a volume of 259041.0 acre-feet on 3/13/2025 Today's level is 84.96 inches lower and 31617 less acre-feet than the high.
The lake reached its low of 4875.6 ft elevation and a volume of 225092.0 acre-feet on 5/29/2025. Today's level is 7.44 inches higher and 2332 more acre-feet than the low.
The historic average elevation of the lake for this day is 4864.16 ft. Today's elevation is 12.06 feet higher than the average. The historic average volume of the lake for this day is 194490.60 acre-feet. Today's volume is 32933.4 acre-feet more than the historic average.
Yesterday Water Flow Data
Yesterday's avereage flow for the Arkansas River at Portland, CO (above and into Pueblo Reservoir) was 781 cubic feet per second. The historic average Arkansas River flow at Portland, CO for yesterday is 1862.4634 cubic feet per second. Yesterday's flow is 1081.4634 cubic feet per second less than the historic average.
Yesterday's average Arkansas River flow at Pueblo Reservoir's dam was 706 cubic feet per second. The historic average Arkansas River flow at Pueblo Reservoir's dam for yesterday is 1649.6829 cubic feet per second. Yesterday's flow is 943.6829 cubic feet per second less than the historic average.