In 2009, Typhoon Morakot brought extreme heavy rain. The mountain areas in Southern Taiwan received over 300cm of rainfall within three days. Mudslides, rising riverbanks, and fallen rocks devastated roads and bridges along the Nanheng Highway. Much of the highway between Meishankou and Xiangyang was severely destroyed leaving the remaining geologic structure unstable. That section of the highway was closed off and not accessible to vehicles. After Typhoon Morakot, the highway continued to be impacted by destructive heavy rainfall every two to three years. This caused great obstruction to the highway repair work. After many years of hard work within the government departments and construction workers, including over $13 billion NTD in funding, 13 years of overcoming difficulties and obstacles; over 15 tunnels and 12 bridges repaired, finally, on May 1st, the Nanheng Highway is back to normal operation.