This bridge replaced another bridge originally over I-70 at this location. Stadium road was graded lower when it was widened for the stadium project and this bridge was built. The original was a two lane 1960s vintage UCEB on concrete columns that crossed very high over the interstate, carrying what I believe was then called Leeds Road.
The bridge used to be painted green, and was often called the Grasshopper Bridge by MoDot. My father worked there for 40 years, and this is what he has always called it.