If you are going to Shenyang, it should be at the Pan-Haiying Expressway (Chenguantun) in Liaoning Province.

Beijing-Shenyang expressway is 658 kilometers long. Expressway starts from the East Fourth Ring Road in Beijing, passes through Langfang in Hebei, Baodi in Tianjin, Tangshan, Beidaihe, Qinhuangdao, Shanhaiguan, Jinzhou, Panjin and Anshan in Liaoning, and ends in expressway, a transit city in Shenyang.