Freeway 5 (Taiwan)

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Freeway 5
Chiang Wei-shui Memorial Freeway
Route information
Maintained by Taiwan Area National Freeway Bureau
Length: 54.3 km (33.7 mi)
Existed: June 16, 2006 – present
Counties: Taipei, Yilan
Highway system

Highway system in Taiwan

Fwy. 4 Fwy. 6

Freeway No. 5 is a freeway, which begins in Taipei City at Nangang Junction on National Highway No. 3 and ends in Su-ao, Yilan on Masai Road. Although it was called the Beiyi Freeway (Chinese abbreviation for Taipei to Yilan) prior to its final completion in June 2006, the official name is the Chiang Wei-shui Memorial Freeway, after the early twentieth century Taiwanese political activist and Yilan native Chiang Wei-shui (蔣渭水, Japanese: Sho Isui).[1]

Major cities along the route[edit]

Intersections with other freeways and expressways[edit]


The lanes in each direction are listed below.

  • 2 lanes:
    • Nangang Junxtion – Su-ao Interchange

Traffic rules[edit]

The speed limit in the Hsuehshan Tunnel section is 90 km/h.

The separation distance is 50 m.

Toll Stations[edit]

Only a toll station named and located in Touchung, Yilan is now active. Other toll stations on interchanges are not working until fare changed to based on mileages.

As of July 2008, Toucheng Toll Station has started ETC service.

Exit list[edit]

County Location km[2] mi Exit Name Destinations Notes
Taipei City Nangang 0.0 0.0 0 Nangang System Fwy. 3 – Xizhi, Muzha, Xindian
New Taipei City Shiding 4.0 2.5 4 Shiding CR 106 / CR 106B – Shiding, Shenkeng Shiding Service Area is accessed off CR 106B
Pinglin 14.7 9.1 14 Pinglin Pinglin
New Taipei City,
Yilan County
Hsuehshan Tunnel
Yilan Toucheng 29.7 18.5 30 Toucheng PH 2G / PH 9 – Toucheng, Jiaoxi
38 Yilan CR 191A to PH 7 / CR 191 / CR 192 – Zhuangwei, Yilan
47 Luodong CR 191A to CR 196 – Wujie, Luodong
Su'ao 54.3 33.7 54 Su'ao To PH 2 / PH 9 – Su'ao, Dongshan
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


The section between Toucheng, Yilan and Su-ao, Yilan was completed in January 2006.

Hsuehshan Tunnel between Pinglin, Taipei and Toucheng, Yilan is 12.9 km long. It is the fifth longest road tunnel in the world.

Extension to Hualian is planned, but the construction is suspended due to environmental concerns.

Pinglin IC located in Taipei water preservation area, is temporarily opened before the Syueshan Tunnel completed. It will not open to public due to environmental protection issues. The water on the freeway is collected by the water processing plant to prevent polluting the preservation area.

Su-Hua Freeway[edit]

Su-Hua Freeway (蘇花高速公路) is a future freeway project executed by Taiwan Area National Expressway Engineering Bureau. It will be constructed between Su-ao, Yilan and Ji-an, Hualien. It may cost over 100 billion New Taiwan dollars to build. Due to environmental protection issues, this project is temporarily suspended. The next item will be Hua-dong Freeway and South Link Freeway.

The substitution way of Su-Hua Highway[edit]

In 2008, a substitution way of Su-Hua Highway (Provincial Highway No. 9) was suggested, which was named "Suhuati." It will be between Nan-ao, Yilan and Heping, Hualien, and would cost approximately 30 billion NT dollars to build.

In 2010, the project was renamed to Suhuagai, where the project was intended to improve dangerous sections between Suao and Chongde; MOTC said it will start construction in 2011.[1]