S1 Expressway (Thailand)
| S1 Expressway ทางพิเศษสาย S1 | |
|---|---|
| Bang Na–At Narong Expressway ทางพิเศษสายบางนา–อาจณรงค์ | |
| Route information | |
| Maintained by Expressway Authority of Thailand | |
| Length | 4.7 km (2.9 mi) |
| Existed | 15 June 2005–present |
| Major junctions | |
| West end | Chaloem Maha Nakhon Expressway, Chalong Rat Expressway |
| East end | Burapha Withi Expressway |
| Location | |
| Country | Thailand |
| Highway system | |
The S1 Expressway (Thai: ทางพิเศษสาย S1), also known as the Bang Na–At Narong Expressway (Thai: ทางพิเศษสายบางนา–อาจณรงค์), is an expressway in Thailand, located in Bangkok. It is 4.7 kilometres in length. The expressway is a controlled-access toll road.