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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
October 13 2025 Water Level
Today's elevation is 4865.90 feet above sea level, 187159 acre-feet, 52.43% capacity. This is...
0.60 inches lower and 183 acre-feet less than yesterday. The average decrease for this time of year is 0.25 inches. 1.80 inches lower and 548 acre-feet less than last week. 27.12 inches lower and 8361 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 208.80 inches lower and 71882 less acre-feet than the high.
Today's water level is the lowest for the year.
The historic average elevation of the lake for this day is 4853.86 ft. Today's elevation is 12.04 feet higher than the average. The historic average volume of the lake for this day is 157814.87 acre-feet. Today's volume is 29344.13 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 268 cubic feet per second. The historic average Arkansas River flow at Portland, CO for yesterday is 315.9024 cubic feet per second. Yesterday's flow is 47.9024 cubic feet per second less than the historic average.
Yesterday's average Arkansas River flow at Pueblo Reservoir's dam was 107 cubic feet per second. The historic average Arkansas River flow at Pueblo Reservoir's dam for yesterday is 210.6098 cubic feet per second. Yesterday's flow is 103.6098 cubic feet per second less than the historic average.