Hujin Expressway designated S4, is an expressway in Shanghai

Expressways of Shanghai

Shanghai has an expansive grade-separated highway and expressway network consisting of 14 city elevated and surface expressways, 9 provincial-level expressways, and 8 national-level expressways...

. It runs generally in a north-south direction from the Xinzhuang Interchange, a large interchange with the S20 Outer Ring Expressway, Humin Elevated Road

Humin Elevated Road

Humin Elevated Road is an elevated expressway in the city of Shanghai, China. It runs from the Inner Ring Road at the North Caoxi Road Interchange to the S20 Outer Ring Expressway, G60 Shanghai–Kunming Expressway and S4 Hujin Expressway interchange in Minhang District.The first phase of Humin...

, and the G60 Shanghai–Kunming Expressway

G60 Shanghai–Kunming Expressway

The Shanghai–Kunming Expressway , commonly referred to as the Hukun Expressway is an expressway that connects the cities of Shanghai, China, and Kunming, Yunnan. It is in length.-Shanghai:...

 in Minhang District

Minhang District

The Minhang District of Shanghai has a land area of 371.57 km2 and population of 2,429,000 residents as of 2010.It is mostly a residential district, though it is also home to some of the many factories and production facilities in Shanghai. Residential housing development is the main source of...

 to Jinshan District

Jinshan District

Jinshan District of Shanghai is neighbouring Zhejiang and near Hangzhou Bay. It has a land area of 586.14 km² and a population 536,900 as of 2001....

, ending at an interchange with the G15 Shenhai Expressway. The expressway is tolled south of Jindu Road.

Before August 2009, the expressway was known as the A4 Expressway.

List of exits and interchanges

• Interchange with S20 Outer Ring Expressway, Humin Elevated Road
  Humin Elevated Road
  Humin Elevated Road is an elevated expressway in the city of Shanghai, China. It runs from the Inner Ring Road at the North Caoxi Road Interchange to the S20 Outer Ring Expressway, G60 Shanghai–Kunming Expressway and S4 Hujin Expressway interchange in Minhang District.The first phase of Humin...
  
  , and G60 Shanghai–Kunming Expressway
  G60 Shanghai–Kunming Expressway
  The Shanghai–Kunming Expressway , commonly referred to as the Hukun Expressway is an expressway that connects the cities of Shanghai, China, and Kunming, Yunnan. It is in length.-Shanghai:...
  
  
• X220 Xinzhu Road - northbound entrance only from westbound, southbound exit only to westbound
• X228 Chunshen Road
• X231 Yindu Road - northbound entrance only from westbound, southbound exit only to westbound
• X227 Jindu Road
• S32 Shenjiahu Expressway
• S323 Jianchuan Road
• X421 Xizha Highway - northbound entrance only from westbound, southbound exit only to westbound
• S324 Daye Highway
• S306 Tuannan Highway and Nianfeng Road
• Interchange with G1501 Shanghai Ring Expressway
• X431 Haiwan Road
• North Muhua Road - to Shanghai Chemical Industries Zone
• X262 Zhuanghu Highway
• Interchange with G15 Shenhai Expressway and exit to X250 Tingwei Highway