![Underground Success](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Faerial_of_lift_station__juan_solomon_parkproject.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=7c8faf9e17116829360818d290ed46bc)
On the surface, the renovated Juan Solomon City Park on the northwest side of Indianapolis looks like many city parks across America: a playground of swings and slides and climbing bars, picnic tables and tennis courts, restrooms and parking space.
There's also plenty of green...