The Suhua Highway Improvement Project (Chinese: 蘇花公路改善計畫; pinyin: Sū-Huā Gōnglù Gǎishàn Jìhuà; colloquially 蘇花改, pinyin: Sūhuāgǎi) is a major highway project in northeast Taiwan to improve and bypass dangerous sections of the Suhua Highway, part of Provincial Highway 9. The Suhua Highway is the main road connecting the Taiwanese communities of Su'ao and Hualien, and a portion of it is built alongside very steep cliffs high above the Pacific Ocean. Because of the rugged terrain, the road is often closed due to heavy rain, typhoons, or landslides, leading to injuries and deaths.