Rottenwood Creek Trail is part of a larger effort by the City of Marietta and its partners to expand the current trail network by developing a connection piece between the Mountain to River Trail and the Bob Callan Trail. This trail will create an east-west connection between Kennesaw Mountain and the Chattahoochee River.

The project is currently divided into two phases. Phase I begins at Alumni Drive on the Kennesaw State University-Marietta campus and travels east to Franklin Gateway at the Franklin Gateway Sports Complex. This portion is currently within the right-of-way and acquisition phase, with construction estimated to begin in 2022. Phase II begins on Franklin Gateway and travels south and east across I-75, terminating at the intersection of Delk and Bentley Roads, and ultimately tying into the Bob Callan trailhead at Terrell Mill Road. A concept report has been approved by GDOT for this phase.  The next step for Phase II is engineering and design.