National Freeway 3
| National freeway 3 | ||||
|---|---|---|---|---|
| Formosa Freeway | ||||
| Route information | ||||
| Maintained by Taiwan Area National Freeway Bureau | ||||
| Length | 430.5 km (267.5 mi) | |||
| Existed | 19 January 1993–present | |||
| Major junctions | ||||
| North end | Prov 2 in Keelung | |||
| South end | Dapengwan National Scenic Area in Linbian | |||
| Location | ||||
| Country | Taiwan | |||
| Counties | Keelung, New Taipei, Taipei, Taoyuan, Hsinchu, Miaoli, Taichung, Changhua, Nantou, Yunlin, Chiayi, Tainan, Kaohsiung, Pingtung | |||
| Highway system | ||||
| 
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National Freeway 3 (Chinese: 國道三號; pinyin: Guódào sān hào), also known as Formosa Freeway (Chinese: 福爾摩沙高速公路; pinyin: Fúěrmóshā gāosù gōnglù), is a freeway in Taiwan. It is the second north–south freeway in Taiwan, beginning in Keelung City at Jijin Interchange on the provincial highway 2 (Jijin Road) and ending in Linbian, Pingtung on the provincial highway 17. It is the longest freeway in Taiwan with a total length of 431.5 km (268.1 mi). The freeway also has a spur route, Freeway 3A.
The highway has 58 interchanges, 15 junctions, 7 service areas and 3 rest areas en route. Aside from the 58 public interchanges, there are also some interchanges reserved for governmental usage.