| Country: | CHN |
| Type: | Expwy |
| Route: | 30 |
| Alternate Name: | Lianhuo Expressway 连霍高速公路 |
| Length Km: | 4395 |
| Map: | G30 map.svg |
| Photo Notes: | G30 Zhengzhou section |
| Direction A: | East |
| Terminus A: | Dagang Road, Lianyun District, Lianyungang, Jiangsu |
| Junction: | in Lianyungang, Jiangsu in Lianyungang, Jiangsu in Xinyi, Xuzhou, Jiangsu in Xuzhou, Jiangsu in Xuzhou, Jiangsu in Suzhou, Anhui in Shangqiu, Henan in Kaifeng, Henan in Kaifeng, Henan in Zhengzhou, Henan in Luoyang, Henan in Luoyang, Henan in Xi'an, Shaanxi in Xi'an, Shaanxi in Xi'an, Shaanxi in Dingxi, Gansu in Lanzhou, Gansu in Jiuquan, Gansu (unopened) in Turpan, Xinjiang in Kuytun, Ili Kazakh, Xinjiang in Ili Kazakh, Xinjiang |
| Direction B: | West |
| Terminus B: | in Khorgas, Huocheng County, Ili Kazakh, Xinjiang |
| Previous Type: | Expwy |
| Previous Route: | 2531 |
| Next Type: | Expwy |
| Next Route: | 3001 |
| Cities: | Lianyungang, Xuzhou, Shangqiu, Kaifeng, Zhengzhou, Luoyang, Sanmenxia, Weinan, Xi'an, Baoji, Tianshui, Lanzhou, Wuwei, Zhangye, Jiuquan, Hami, Turpan, Ürümqi |
The Lianyungang–Khorgas Expressway, designated as G30 and commonly referred to as the Lianhuo Expressway, is 4243adj=midNaNadj=mid[1] in China that connects the cities of Lianyungang, in the province of Jiangsu, and Khorgas, in the autonomous region of Xinjiang, on the border with Kazakhstan. At Khorgas, there is a border crossing into Kazakhstan. The expressway is the longest contiguous expressway in China with a single numeric designation, stretching across the country from the Yellow Sea on the east coast to the Kazakhstan border in the west. It passes through the provinces of Jiangsu, Anhui, Henan, Shaanxi, Gansu, and Xinjiang.
The entire G30 route is part of, beside this one, the east route from Lianyungang to Xi'an is named in Asian Highway Network, as well as the west route from Xi'an to Khorgas is a part of, and from Urumqi to Toksun is part of .
Part of the Expressway passes through the historically significant Hexi Corridor in Gansu and Xinjiang.
The expressway passes through the following cities:
On February 1, 2013, a truck carrying fireworks exploded on the Yichang Bridge, which carries the Lianyungang–Khorgas Expressway, in Mianchi County, Sanmenxia, Henan, causing an 80 m section of bridge to collapse.[2] 13 people died in the accident and 9 were injured.[3]