Coppertone and I stopped by to map out this trail since we were in the area. It's the same park where a few years ago we took part in an It's My Park Day project to pick up trash and add mulch around some of the park's trees.
From the street it looks like there is no trail. You take the path over the bridge and first go to the right down to the creek. Come back up and take the left trail which doesn't go far, but when it ends on the street, take a right and then a left around the houses (behind their fences) and you can cross the creek and take it back to Connally High. We made a longer hike out of this.