An adult male called the California Highway Patrol stating he was going to jump into the trackway at the Walnut Creek Station. The adult male, who was making threats to kill himself, could be seen straddling the wall which leads to the ground. BART, Walnut Creek and Pleasant Hill P.D. officers responded to the call. The station was closed, and trains were held out. Officers were able to talk the male adult off the platform. The adult male was placed on a psychiatric detention per 5150 W&I and transported to a local hospital. Service was restored to the station after 45 minutes.