Despite the "National Highway" designation, G209 is not of uniform quality throughout its length. For example, as of 2009, the 20-kilometer section north of Badong is nothing but a very poor dirt road. Nonetheless, even that section is of importance for the national highway system: it is used e.g. by long-distance buses plying the route between Badong and points east. Many parts of the Muyu to Hongping section (in Hubei's Shennongjia Forestry District) are not much better. On the other hand, the section from the Shennongjia National Park entry to Muyu to Baishahe Village (in Nanyang Town, Xingshan County) is part of a recently upgraded Yichang-Shennongjia Highway.
Junction with a Hubei provincial highway in Baishahe Village, Nanyang Town, Xingshan County, Hubei. For the next 52 km to the north (to Muyu) G209 will follow the Xiangping River, doubling as part of the Yichang-Shennongjia Highway; for the 72 km to the southwest, it will be crossing two mountain ranges to get to Badong
A not-yet-improved section of G209 just north of Badong
China National Highway 112 runs around Beijing
Before 2013, Mainland China observed National Highway 228 as Taiwan Ring, composed of several National Expressway (Republic of China) and Taiwan provincial highways, this designation is not recognized by Republic of China (Taiwan). This observation was eventually dropped in new National Highway plans, replaced by Dandong-Dongxing Highway.
A extension plan of the highway system was announced in 2013, including extension of existing highways(101-112, 201-227, 301-330) and new highways (North-South 228-248, East-West 331-361, Connections 501-581). Only small portions of them needs to be constructed from scratch; most of the new highways would be upgraded provincial/county highways.
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