In 1959 a pair of strong typhoons caused NT $ 10 million worth of damage, triggering landslides over some 200,000 square meters of mountainside and wrecking communications equipment along the length of the highway.
四十八年接連的瓊安強烈颱風及露依斯颱風使中橫全線電訊設備損毀慘重，坍方累積二十餘萬方，損失更是高達千萬元。