SIOUX CITY -- Developers and city leaders ceremoniously broke ground on a 10-acre waterpark on Sioux City's north side in early August.
Siouxland Splash is slated to open on Memorial Day weekend at 3820 Highway 75 North. Joe Zehring, partner and co-owner of Frontline Development LLC, said the park will have a 50-foot slide tower with multiple waterslides coming off of it, as well as a large kids play structure with splash elements, lazy river, adult pool area and "surprise" feature that he said is going to be "really unique to the area."
Zehring and Henk Klopper, who say they both live in the community, came up with idea for the waterpark "on the back of a napkin" 2 1/2 years ago in a coffee shop.Â
"This project is important to us. It means a lot to us. We care to see that it's done right and run well. And so with that, we'd appreciate the support of the community," Zehring said during the groundbreaking ceremony. "We'd love to support you guys providing a fun, safe place to enjoy your summers as a family."
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Klopper said their vision extends far beyond the slides and splash pools. He said the goal is to create a "vibrant community" for people of all ages.
"As we celebrate the beginning of our waterpark project, we are not just marking the start of construction, we are laying the groundwork for a place where laughter will echo, where the thrill of adventure will blend with the tranquility of relaxation, and where cherished memories will be made," Klopper said. "It's about offering a haven of fun and relaxation and a place where the stresses of daily life can be washed away by endless excitement and joy."
The city acquired 42 acres of land along Highway 75 North in hopes of spurring projects like Siouxland Splash. City leaders say the waterpark is just the start of development in that area.
The "first-class waterpark" is something Marty Dougherty, the city's economic development director, is looking forward to the park's first season.Â
"We're excited about the waterpark that's going to be opening up. I think that's a great new step for Sioux City, but also I think it's an indicator of more development that will come on the northeast side of town. We're excited about that -- some commercial development, some housing and business development," Dougherty said.
"I think that area's really going to open up. I think the waterpark is a great, great start to that and a great way to add another level of activities and amenities for the city, along with all the other great parks and trails that are coming along."
The Sioux City Marina is shown Tuesday, March 11, 2025. The marina was closed last season over the need to dredge the facility.

