| Country: | CHN |
| Type: | Expwy |
| Route: | 40 |
| Alternate Name: | Hushaan Expressway Chinese: 沪陕高速公路 |
| Length Km: | 1526 |
| Map: | G40 map.svg |
| Photo Notes: | The Shanghai Yangtze River Bridge carries 6 lanes of the Shanghai–Xi'an Expressway. |
| Length Ref: | [1] |
| Direction A: | East |
| Terminus A: | in Shanghai |
| Direction B: | West |
| Terminus B: | in Xi'an, Shaanxi |
| Previous Type: | Expwy |
| Previous Route: | 3615 |
| Previous Dab: | Nanjing–Luoyang Expressway |
| Next Type: | Expwy |
| Next Route: | 4001 |
The Shanghai–Xi'an Expressway, designated as G40 and commonly referred to as the Hushaan Expressway is an expressway that connects the cities of Shanghai and Xi'an, Shaanxi. It is 1490km (930miles) in length.
The expressway was completed after Chongqi Bridge opened to commercial traffic on December 24, 2011.
The expressway uses the Shanghai Yangtze River Tunnel and Bridge and the Chongqi Bridge, to cross the Yangtze River north of Shanghai.
The expressway passes through the following cities:[1]