High Quality Content by WIKIPEDIA articles! In the U.S. state of Idaho, U.S. Route 95 is a north?south highway near the western border of the state, stretching from Oregon to British Columbia for over 538 miles (866 km).US 95 continues into Idaho as an undivided two-lane highway for the majority of its length. As it is the state's primary north?south highway, Idaho is in the process of widening US 95 to an Interstate-style divided four-lane highway, from the Oregon state line in the southwest to Eastport at the northern border with Canada (Kingsgate, BC).