 The highway continues as a 4 lane, non-divided highway to 2 miles north of downtown Portland where it becomes 2 lanes to US Highway 31W.A new interchange was constructed in the mid-2000s with US 70, allowing for the free flow of traffic on US 70 with traffic signals controlling the exits onto SR 109.Prior to the reconstruction, US 70 eastbound traversed a long down-sloping hill to the at-grade intersection, which was a four-way stop until the early 2000s, before being converted to one using a standard traffic signal.