ferry street returns to surface level at 3rd street, where ny 2 meets the southbound half of us 4, which is also routed along a one-way pair through the city. a junction with us 4 northbound follows two blocks to the east at 4th street. while most of ny 2 westbound is city-maintained in troy, ny 2 eastbound is a state road up through its intersection with 5th avenue. after 5th avenue, the highway leaves downtown troy and begins to climb the hills overlooking the city. near the rensselaer polytechnic institute, ferry and congress streets merge to form a single two-lane road carrying the congress street name. the route runs southeastward from the merge, serving another commercial strip in the eastside section of the city and connecting to the northern terminus of ny 66 (pawling avenue).