SNOFLO



IOWA FALLS MILLDAM

RESERVOIR LEVELS
Rock, Soil Dam Iowa River
April 9, 2025


39°F

Overnight

60°F

Thursday

7mph

Windspeed

70%

Humidity

The Iowa Falls Milldam is a historic structure located on the Iowa River in Hardin County, Iowa. Built in 1925, this gravity dam serves multiple purposes, including hydroelectric power generation, recreation, and water supply. With a height of 26 feet and a length of 225 feet, the dam has a storage capacity of 4751 acre-feet and covers a surface area of 365 acres.

Managed by the Iowa Department of Natural Resources, the Iowa Falls Milldam is considered to have a low hazard potential and is in satisfactory condition as of the last assessment in 2016. While the dam has not been modified in recent years, it is subject to regular inspections, permitting, and enforcement by state regulatory agencies to ensure its safety and functionality. The dam's location in the Rock Island District and its designation as a public utility highlight its significance in providing renewable energy and recreational opportunities in the region.

Despite its moderate risk assessment, the Iowa Falls Milldam continues to play a vital role in water resource management and climate resilience efforts in Iowa Falls. With its historic significance, multiple uses, and state-regulated operations, the dam serves as a valuable asset for the community while also contributing to sustainable water supply and energy generation practices in the area. Enthusiasts of water resources and climate change will find the Iowa Falls Milldam an intriguing example of how infrastructure can adapt to evolving environmental challenges while fulfilling essential societal needs.

Year_Completed 1925
Dam_Height 26
River_Or_Stream IOWA RIVER
Dam_Length 225
Primary_Dam_Type Gravity
Surface_Area 365
Drainage_Area 679
Nid_Storage 4751
Hazard_Potential Low
Foundations Rock, Soil
Nid_Height 26
       

Weather Forecast

Created with Highcharts 8.0.0humidity0.13"0.13"0.05"0.05"0.31"0.31"0.22"0.22"0.16"0.16"Fri Apr 11Sat Apr 12Sun Apr 13Mon Apr 14Tue Apr 15Tue Apr 1532°64°96°60%40%80%100%