National Freeway 4

National freeway 4 is a freeway, which begins in Qingshui, Taichung on the provincial highway 17. and ends in Fengyuan District on the provincial highway 3.
Length.
The total length is 17.8 km (11.06 miles).
Lanes.
The lanes in each direction are listed below.
Notes.
Completed in November 2001.
There is a plan to extend the route from Fengyuan End south to Xinshe, Taichung, Dakeng (in Taichung City), and Taiping District. It will connect to Freeway No. 3 in Wufeng, Taichung.