G9221 Hangzhou–Ningbo Expressway. The Hangzhou−Ningbo Expressway (), commonly referred to as Hangyong Expressway () or Hangshaoyong Expressway (), is an expressway in Zhejiang, China which links from Hangzhou, through Shaoxing to Ningbo. Its length is 161 km. In the National Trunk Highway System (NTHS) in China, the number of this highway is G9221. It was planned in Zhejiang provincial expressway system as S17 west of Andong junction, and S18 east of Fuhai junction, before introducing in NTHS.

Construction of G9221 started on 26 June 2017. As of January 2024, Hangzhou & Shaoxing sections, as well as phase 1 of Ningbo section are completed and opened for traffic, the rest (phase 2 and 3) of Ningbo section will be completed in 2026~2027. There are plans to promote the maximum speed limit of G9221 to 150 km/h once completed.

List of exits and service areas
{| class="plainrowheaders wikitable"
|-
!scope=col|District/County
!scope=col|Location
!scope=col|km
!scope=col|Junction
!scope=col|Destinations
!scope=col|Notes
|-
|rowspan="7"|Xiaoshan District, Hangzhou
|Nanyang
|
|
|Hongshiwuxian Road Kanhong Road (under construction)
|Once ramps to Kanhong Road completed, it will provide traffic to Hangzhou Airport
|-
|Hezhuang
|
|
|Hongshiwuxian RoadHezhuang Road
|Eastbond entrance and westbond exit
|-
|Jingjiang
|
|
|Hongshiwuxian RoadS. Qingliu Road
|Westbond entrance and eastbond exitNear  of  and ,  of 
|-
|Xieyi
|
|
|Hongshiwuxian Road
|A junction connect to an unknown-name road is construction
|-
|Dangwan
|
|
|Hongshiwuxian RoadSanyuan Road
|
|-
|Dangwan Trunk
|
|—
|
|Toll booth
|-
|Dangwan JCT
|
|
| Sutai Expressway – towards Jiaxing on the north, and Linhai on the south
|
|-
|Qiantang District, Hangzhou
|Linjiangnan
|
|
|Xinshiji Avenue
|
|-
|Xiaoshan District, Hangzhou
|Yinong
|
|Service area
|—
|
|-
|Keqiao District, Shaoxing
|Ma'an
|
|
|Xindongxian RoadXingbin RoadKehai Avenue
|
|-
|rowspan="2"|Yuecheng District, Shaoxing
|Shaoxing North
|
|
|N. Yuedong Road
|
|-
|Binhaixincheng JCT
|
|
| – towards Jiaxing on the north, and Sanmen County on the south
|
|-
|rowspan="3"|Shangyu District, Shaoxing
|Songxia
|
|
|Zhenxing Avenue
|
|-
|Gaibei
|
| bgcolor="ffdddd"|
| bgcolor="ffdddd"|Zhenxing Avenue
| bgcolor="ffdddd"|Section east of Gaibei under construction
|-
|(unknown)
|
| bgcolor="ffdead"|Service area
| bgcolor="ffdead"|—
| bgcolor="ffdead"|
|-
|rowspan="3"|Yuyao, Ningbo
|Meiyuan
|
| bgcolor="ffdead"|
| bgcolor="ffdead"|
| bgcolor="ffdead"|
|-
|Simen
|
| bgcolor="ffdead"|
| bgcolor="ffdead"|Gubei Road
| bgcolor="ffdead"|
|-
|Xiaocaoe JCT
|
| bgcolor="ffdddd"|
| bgcolor="ffdddd"| Ciyu ExpresswayTaosheng Road – towards southern of YuyaoKexing Road
| bgcolor="ffdddd"|Section west of Xiaocaoe JCT under construction
|-
|rowspan="7"|Cixi, Ningbo
|Andongxi
|
|
|Zhouan Highway
|
|-
|Andong JCT / W. Hangzhou Bay New Zone
|
| bgcolor="ddffdd"|
| bgcolor="ddffdd"| – towards Shanghai via Hangzhou Bay Bridge (Binhai 1st Road)Hangzhouwan Avenue
| bgcolor="ddffdd"|Start of G15 concurrency, and a very short concurrent section with G228 within the junction
|-
|Cixi (E. Hangzhou Bay New Zone)
|
|
|E. Third Ring Road
|
|-
|Yanglong
|
|
|
|
|-
|Fuhai JCT
|
| bgcolor="ddffdd"|
| bgcolor="ddffdd"| – towards northwest of Ningbo urban area
| bgcolor="ddffdd"|End of G15 concurrency, westbond entrance and eastbond exit
|-
|Cidong
|
|
|N. Cidong AvenueFangsong Road
|
|-
|Longshan
|
|
|S. Cidong AvenueZhenlong 3rd Road
|
|-
|rowspan="3"|Zhenhai District, Ningbo
|Xiepu
|
|
|N. Wanghai Road, Niluoshan Road
|
|-
|Binhai JCT
|
|
| – towards northeast of Ningbo urban area on the southwest, and Zhoushan on the northeast
|
|-
|Zhaobaoshan
|
| bgcolor="ffdddd"|
| bgcolor="ffdddd"|Weihai Road, Haitian Road
| bgcolor="ffdddd"|De facto east termini until 2027
|-
|rowspan="3"|Beilun District, Ningbo
|Xiapu JCT
|
| bgcolor="ffdead"|
| bgcolor="ffdead"| S20 Chuanshan Port Expressway – towards east of Ningbo urban area on the west, and Beilun Port on the east
| bgcolor="ffdead"|
|-
|Chunxiao JCT
|
| bgcolor="ffdead"|
| bgcolor="ffdead"|Xiangshanwanshugang Expressway – towards Tangxi
| bgcolor="ffdead"|
|-
|Meishan Port
|
| bgcolor="ffdead"|
| bgcolor="ffdead"|Yantian Avenue
| bgcolor="ffdead"|

References

Chinese national-level expressways