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
Major intersections	Nat 1 in Xizhi Nat 5 in Nangang, Taipei Nat 2 in Yingge Nat 1 in Baoshan Nat 4 in Qingshui Nat 1 in Changhua Nat 6 in Wufeng Nat 8 in Xinhua Nat 10 in Yanchao
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
Transport in Taiwan
← Nat 2 → Nat 4

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 is also the only one in Taiwan to have a spur route, Freeway 3A.

The highway has 58 interchanges, 15 junctions, 7 service areas and 3 rest areas en route.^[1] Aside from the 58 public interchanges, there are also some interchanges reserved for governmental usage.