Your favorites:
Local Info
Critical Stages
11' - Action12' - Flood14' - Moderate Flood15' - Major Flood
Big Sioux River - Gauge DERS2
Dell Rapids, SD
Lat: 43.79N, Lon: 96.75W
 
Latest Observation
Updated: 3:30 AM CDT 10/26/25
Stage:4.08 ft
Flow:0.777 kcfs*
* Thousand cubic feet per second
Forecast
hydrograph
Flood Impacts
Historical Crests

Data provided by NOAA Advanced Hydrologic Prediction Service

Buy me a coffee