After passing some homes and Stephen Lake , the road turns to the north and passes to the west of Estell Manor County Park . The route crosses the South River into Weymouth Township , passing the residential community of Belcoville to the east and meeting CR 669 . It soon enters Hamilton Township , where the name of the road becomes Mill Street and it comes to a junction with US 40 ( Harding Highway ) . CR 557 Truck heads to the west on US 40 at this point while Route 50 heads east on US 40 , and CR 616 continues north .