SIOUX CITY (KTIV) - An $865,000 award has been given to Sioux City for a local levee project.

Makenzie Huber/South Dakota Searchlight Nearly six years after Sioux Falls officials filed a federal lawsuit against chemical ...

SIOUX FALLS, S.D. (KELO) — The Big Sioux River in Sioux Falls is sitting below average in terms of streamflow for this time of year, according to the United States Geological Survey (USGS).

The BNSF Railroad’s bridge over the Big Sioux River that links Sioux City and North Sioux City, South Dakota, falls after workers set off demolition charges to take down the span Friday morning ...

The murky brown Big Sioux River consistently receives poor marks for its water quality, but eastern South Dakota water systems near the river don’t know if that pollution includes “forever chemicals.” ...

Tyler Wasberg pulls a sample of beer brewed with surface water from the Big Sioux River to check on the fermentation process on Wednesday, April 14, 2021, at Remedy Brewing Co. in Sioux Falls.

Tyler Wasberg pulls a sample of beer brewed with surface water from the Big Sioux River to check on the fermentation process on Wednesday, April 14, 2021, at Remedy Brewing Co. in Sioux Falls.

Smithfield’s nitrate discharge to the Big Sioux River in Sioux Falls, S.D., was 47% lower in 2023 than it was in 2022, said Ray Atkinson, senior director of external communications for the company.

Sioux Falls residents use an average of more than 22 million gallons of water a day, just 3% of which comes from Big Sioux River surface water and is treated by the city’s wastewater plant.

Officials with the Sioux Falls Police Department say the investigation into how a body ended up in the Big Sioux River this past weekend is ongoing. Police department spokesman Sam Clemens said ...