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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 23 2026 Water Level
Today's elevation is 4858.17 feet above sea level, 160316 acre-feet, 44.91% capacity. This is...
Unchanged from yesterday. The average decrease for this time of year is 0.01 inches. 0.36 inches higher and -130.26999999999 acre-feet more than last week. 4.20 inches lower and 1045.59 acre-feet less than last month. 88.32 inches lower and 25602.11 acre-feet less than than last year.
For 2026...
The lake reached its peak of 4874.5 ft elevation and a volume of 220285.2 acre-feet on 3/15/2026 Today's level is 195.96 inches lower and 59969.13 less acre-feet than the high.
The lake reached its low of 4858.1 ft elevation and a volume of 160185.8 acre-feet on 10/14/2026. Today's level is 0.84 inches higher and 130.27000000002 more acre-feet than the low.
The historic average elevation of the lake for this day is 4861.85 ft. Today's elevation is 3.68 feet lower than the average. The historic average volume of the lake for this day is 173117.13 acre-feet. Today's volume is 12801.06 acre-feet less 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 218 cubic feet per second. The historic average Arkansas River flow at Portland, CO for yesterday is 382.0476 cubic feet per second. Yesterday's flow is 164.0476 cubic feet per second less than the historic average.
Yesterday's average Arkansas River flow at Pueblo Reservoir's dam was 142 cubic feet per second. The historic average Arkansas River flow at Pueblo Reservoir's dam for yesterday is 243.9048 cubic feet per second. Yesterday's flow is 101.9048 cubic feet per second less than the historic average.