Chico police are investigation a DUI crash. Officers arrived at Nord Highway at the bridge that crosses over Mud Creek after 1:30 am this morning to find a red Toyota Corolla partially submerged in the creek. The driver, identified as Christina Welsh was able to get out of the car. She was found wet, cold, and shaken up but otherwise only had minor injuries. No one else was in the vehicle. Police say Welsh allegedly displayed symptoms of alcohol consumption and was arrested.