The Missouri Department of Transportation announced Wednesday that St. Louis contractor KCI Construction had the winning bid for the project.
At $26.4 million, MoDOT said KCI's bid was also the lowest submitted.
Landscape architecture firm Michael Van Valkenburgh Associates designed the entire CityArchRiver plan. The entire project is expected to be completed in 2015.
The park portion of the project is expected to begin construction in August and will involve construction near the Martin Luther King Bridge.
Here's a quick look at what the main updates to the grounds should look like when completed:
We'll keep you updated about how this project, and the rest of the Arch redevelopment process, progresses.
Follow Kelsey Proud on Twitter: @KelseyProud