The Port of Taicang North Port Expressway (c=太仓港北疏港高速公路), designated S80, is a 15 kilometers provincial expressway in the county-level city of Taicang, Jiangsu, China that connects the G15 Shenyang–Haikou Expressway, a major north-south expressway running through the city, with the Port of Taicang.