Well its under punjab goverment. u can book it from distt complex chakwal. Yes its safe to travel.
If u r coming from lahore leave the motorway at kallar kahar and go for Choa Saidan Shah. Which is 26km from kallar kahar and from choa the dam is just i think 15km.
There r three rooms. Condition is good. No AC.
There should b a cook butt i am not sure. Its better to get some by your self.