Just before reaching former SR-181, SR-171 becomes much steeper than at any point to the west (other than when it ducks under the Union Pacific-FrontRunner right-of-way), and from there it continues to climb the East Bench foothills until its terminus at I-215 in Millcreek.
Before reaching former SR-181, SR-171 becomes much steeper than any point west of it (except when it briefly goes under the Union Pacific-FrontRunner right-of-way), and then continues to climb the East Bench foothills until it reaches I-215 in Millcreek.