Irving’s newest trail will connect downtown to Campion Trail and eventually link to Dallas Phase 1 of the project is now open to the public, with construction work on Phase 2 scheduled to begin this fall. Runners jog along Irving's Campion Trail, which will soon connect to the city's downtown.(File / 2007) A new trail in Irving will connect the city’s downtown to Campion Trail, the 22-mile greenbelt along Elm and West forks of the Trinity River. The first phase of the project, called the Delaware Creek Trail Connector, is now complete, and construction on the second portion is scheduled to begin this fall.