This is the correct location. We've stopped there before on a motorcycle weekend but didn't have a camera.
That's just you're run-of-the-mill wooden stringer bridge they build for parks. The bridge I'm looking for is far too wide to be that bridge: http://lh3.ggpht.com/-9Ilo6F2CAxY/SpGZEn9vkCI/AAAAAAAABdo/QbXaymnw9WE/mormon_trail%25252520012.jpg
There's an interesting bridge in an area between Buckeye Lane and South Warsaw Street southeast of where you put the pin.
Location is a guess because, for something so closely tied to Mormonism they done a "great job" of marking it with GPS coordinates or something.