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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
April 13 2026 Water Level
Today's elevation is 4873.20 feet above sea level, 215060 acre-feet, 60.24% capacity. This is...
0.36 inches lower and 121.07999999999 acre-feet less than yesterday. The average decrease for this time of year is 0.16 inches. 1.56 inches lower and 403.60999999999 acre-feet less than last week. 15.72 inches lower and 5265.8 acre-feet less than last month. 91.44 inches lower and 32274.81 acre-feet less than than last year.
For 2026...
The lake reached its peak of 4874.6 ft elevation and a volume of 220692.8 acre-feet on 3/15/2026 Today's level is 16.80 inches lower and 5632.61 less acre-feet than the high.
The lake reached its low of 4870.3 ft elevation and a volume of 203669.0 acre-feet on 1/1/2026. Today's level is 34.80 inches higher and 11391.19 more acre-feet than the low.
The historic average elevation of the lake for this day is 4867.81 ft. Today's elevation is 5.39 feet higher than the average. The historic average volume of the lake for this day is 205055.93 acre-feet. Today's volume is 10004.26 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 219 cubic feet per second. The historic average Arkansas River flow at Portland, CO for yesterday is 451.3095 cubic feet per second. Yesterday's flow is 232.3095 cubic feet per second less than the historic average.
Yesterday's average Arkansas River flow at Pueblo Reservoir's dam was 195 cubic feet per second. The historic average Arkansas River flow at Pueblo Reservoir's dam for yesterday is 545.1905 cubic feet per second. Yesterday's flow is 350.1905 cubic feet per second less than the historic average.