Improvement Projects for National Freeway 1's Yuanshan Interchange and Bridge Kick Off
To alleviate traffic congestion near the Taipei and Yuanshan interchanges, Taiwan's Freeway Bureau has launched the "Improvement Project for the Northbound Lanes of National Freeway No. 1 at Taipei and Yuanshan Interchanges" and the "Life Extension and Reinforcement Project for Yuanshan Bridge." With a total budget of around NT$6 billion, the projects are expected to be completed successively between 2029 and 2030, saving an estimated 20 minutes of travel time.
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- 📰 Published: June 9, 2026 at 14:29
- 🔍 Collected: June 9, 2026 at 14:38 (9 min after Published)
- 🤖 AI Analyzed: June 9, 2026 at 14:39 (1 min after Collected)
(CNA, Taipei, June 9, by reporter Yu Hsiao-han) To improve congestion near the Taipei and Yuanshan interchanges, the Freeway Bureau has initiated the "Improvement Project for the Northbound Lanes of National Freeway No. 1 at Taipei and Yuanshan Interchanges" and the "Life Extension and Reinforcement Improvement Project for Yuanshan Bridge on National Freeway No. 1," with expected completion and opening to traffic between 2029 and 2030.
A blessing ceremony was held today for the two projects by the Ministry of Transportation and Communications' Freeway Bureau.
Freeway Bureau Director-General Chen Wen-jui stated that the improvement projects for the Taipei and Yuanshan interchanges were proactively proposed by the Ministry of Transportation and the Freeway Bureau. All construction will take place within the freeway's right-of-way, requiring no new land acquisition. The total cost is NT$4.172 billion, with completion and opening expected successively from 2029 to 2030.
The Freeway Bureau pointed out that the Taipei Interchange improvement project will add new ramp bridges and a box culvert to improve traffic weaving on the main line, collector-distributor roads, and the surrounding area of Chongqing North Road. The Yuanshan Interchange improvement will add a new southbound exit ramp directly connecting to Songjiang Road and an additional box culvert to divert traffic heading towards Songjiang Road earlier, reducing weaving and ramp backups on the northern section of the Jianguo Viaduct.
The Bureau said that by adding three new ramp bridges and two box culverts, the projects will optimize the connection between the freeway and local roads, resolving four traffic weaving points and saving 20 minutes of travel time.
Additionally, as the Yuanshan Bridge has been in operation for 50 years, the Freeway Bureau has proposed a life extension and reinforcement project. The project cost is approximately NT$2.061 billion, also fully funded by the National Freeway Fund, and is expected to be completed in July 2029.
The Freeway Bureau stated that the Yuanshan Bridge project will enhance structural safety and durability by adding steel arches, steel column supports, and bridge reinforcement. This will control future vertical displacement, improve driving comfort for road users, and aims to extend the bridge's service life by more than 50 years.
Minister of Transportation Chen Shih-kai noted that a total of about NT$6 billion has been invested in these three projects. He hopes the interchange improvements will open up traffic bottlenecks and alleviate congestion. For the Yuanshan Bridge, which has been in use for over 50 years, he hopes this reinforcement project will allow it to be used for another 50 years or more. (Editor: Chang Ming-kun) 20260609
A blessing ceremony was held today for the two projects by the Ministry of Transportation and Communications' Freeway Bureau.
Freeway Bureau Director-General Chen Wen-jui stated that the improvement projects for the Taipei and Yuanshan interchanges were proactively proposed by the Ministry of Transportation and the Freeway Bureau. All construction will take place within the freeway's right-of-way, requiring no new land acquisition. The total cost is NT$4.172 billion, with completion and opening expected successively from 2029 to 2030.
The Freeway Bureau pointed out that the Taipei Interchange improvement project will add new ramp bridges and a box culvert to improve traffic weaving on the main line, collector-distributor roads, and the surrounding area of Chongqing North Road. The Yuanshan Interchange improvement will add a new southbound exit ramp directly connecting to Songjiang Road and an additional box culvert to divert traffic heading towards Songjiang Road earlier, reducing weaving and ramp backups on the northern section of the Jianguo Viaduct.
The Bureau said that by adding three new ramp bridges and two box culverts, the projects will optimize the connection between the freeway and local roads, resolving four traffic weaving points and saving 20 minutes of travel time.
Additionally, as the Yuanshan Bridge has been in operation for 50 years, the Freeway Bureau has proposed a life extension and reinforcement project. The project cost is approximately NT$2.061 billion, also fully funded by the National Freeway Fund, and is expected to be completed in July 2029.
The Freeway Bureau stated that the Yuanshan Bridge project will enhance structural safety and durability by adding steel arches, steel column supports, and bridge reinforcement. This will control future vertical displacement, improve driving comfort for road users, and aims to extend the bridge's service life by more than 50 years.
Minister of Transportation Chen Shih-kai noted that a total of about NT$6 billion has been invested in these three projects. He hopes the interchange improvements will open up traffic bottlenecks and alleviate congestion. For the Yuanshan Bridge, which has been in use for over 50 years, he hopes this reinforcement project will allow it to be used for another 50 years or more. (Editor: Chang Ming-kun) 20260609
FAQ
這次改善工程主要針對哪些地點？
主要針對國道1號的台北交流道、圓山交流道以及圓山橋。
改善工程的總經費是多少？由誰負擔？
總經費約新台幣60億元（交流道改善41.72億，圓山橋加固20.61億），由國道基金全數支應。
工程預計何時完工？
圓山橋延壽加固工程預計於民國118年7月完工，整體交流道改善工程預計在民國118年至119年（西元2029年至2030年）陸續完工通車。
為什麼圓山橋需要進行延壽加固工程？
因為圓山橋已經營運50年，高公局希望透過這次加固工程，提高其結構安全與耐久性，目標是延長服務年限50年以上。
工程完工後預計能帶來什麼效益？
預計能優化國道與地區道路的銜接，解決4處車流交織問題，節省行車時間約20分鐘，並紓解周邊交通壅塞情況。