 In 1969, the north end was cut back four blocks to SR-186 (400 South), and the south end was extended west along what had been SR-111 (created in 1931) to SR-68 (Redwood Road) in Riverton.A short extension west from the south end to the new SR-154 (Bangerter Highway) was made in 2001, pending reconstruction by the state.A $4 million construction project at the intersection of SR-71 and State Street (US-89) in Draper converted the intersection into a Michigan left, where travelers going west on SR-71 would turn north onto State Street then make a U-turn to access southbound State Street.