What is the general geographical location of the US$10.6 billion bridge and tunnel project?
Lingdingyang:  Currently, Humen Pearl River Bridge is the only bridge that crosses Lingdingyang at the northern end with Hong Kong–Zhuhai–Macau Bridge a bridge and tunnel across Lingdingyang is being built in the southern end of channel. Hong Kong–Zhuhai–Macau Bridge:  The 50 km link is expected to cost US$10.6 billion (HK$83 billion).
i don't know