Sioux Falls Area USGS Streamflow Information
The interactive map below highlights realtime United States Geological Survey (USGS) streamflow gauges. Select a large raindrop to see USGS streamflow information or a small raindrop to see USGS groundwater information.
The City of Sioux Falls Public Works office pays special attention to what's happening upstream, especially at the Big Sioux River Dell Rapids Streamflow Monitoring Station.
This website was partially funded by Environmental Monitoring for Public Access and Community Tracking (EMPACT). EMPACT is a United States Environmental Projection Agency program designed to aid communities in the collection, management, and presentation of environmental information to residents through the use of grants. The primary objective of Project EMPACT: Big Sioux River Drainage Basin Information Outreach is to raise public awareness about the importance of protecting the Big Sioux River drainage basin. More information can be found at
http://www.epa.gov/empact 
