Changshu–Taizhou Expressway
常熟－台州高速公路
Changtai Expressway 常台高速公路
Route information
Auxiliary route of G15
Length	339 km (211 mi) Length when complete.
Major junctions
North end	G15 / Jiangsu S38 in Changshu, Suzhou, Jiangsu
Major intersections	G2 / G42 in Suzhou, Jiangsu G50 in Suzhou, Jiangsu Zhejiang S12 in Jiaxing, Zhejiang G60 in Jiaxing, Zhejiang G92 in Haining, Jiaxing, Zhejiang (under construction) G92 in Shangyu, Shaoxing, Zhejiang G1512 in Shengzhou, Shaoxing, Zhejiang
South end	G15 in Sanmen County, Taizhou, Zhejiang
Location
Country	China
Highway system
National Trunk Highway System Primary Auxiliary National Highways Transport in China
← G1521 → G1523

The Changshu–Taizhou Expressway (Chinese: 常熟—台州高速公路; pinyin: Chángshú–Tāizhōu Gāosù Gōnglù), designated as G1522 and commonly referred to as the Changtai Expressway (Chinese: 常台高速公路; pinyin: Chángtāi Gāosù Gōnglù), is an expressway that connects the cities of Changshu, a satellite city of Suzhou, in the province of Jiangsu, China, and Taizhou, in the province of Zhejiang. When fully complete, it will be 339 km (211 mi) in length. The expressway is a spur of the G15 Shenyang–Haikou Expressway. The spur line splits off from the main expressway at Changshu and passes through the cities of Suzhou, Jiaxing, and Shaoxing before rejoining the main expressway just north of Taizhou, Zhejiang.

The expressway was finished when a section between Jiaxing and Shaoxing, which includes a bridge over the Hangzhou Bay, was constructed in 2013.^[1] This bridge was the second bridge over the bay, the first being the Hangzhou Bay Bridge, which carries the G15 Shenyang–Haikou Expressway and the G92 Hangzhou Bay Ring Expressway.

References