Bridges and tunnels across the Yangtze River
The bridges and tunnels across the Yangtze River carry rail and road traffic across China's longest and largest river and form a vital part of the country's transportation infrastructure. The river bisects China proper from west to east, and every major north–south bound highway and railway must cross the Yangtze.
Source: Wikipedia — Bridges and tunnels across the Yangtze River (CC BY-SA 4.0)