Portions of the park are still under construction so full path/route map might be a little confusing at the moment. Totally hear you about making an interim route/trail map available; great suggestion.

The easiest/primary trailheads are at south side of Commissioners Street just east of the bridge to get to the south side of the park and at Cherry and Comissioners Street to access the north side of the park. Lots of trails through the park once you get in.