Cross-sea traffic ways
Cross-sea traffic ways are vehicle or railroad traffic ways across the sea. Such traffic ways could include bridges or tunnels.
Sea bridges
Existing sea bridges
- Anping Bridge
- Donghai Bridge
- Haicang Bridge
- Hangzhou Bay Bridge
- Hong Kong–Zhuhai–Macau Bridge
- Jiangnanshan Bridge
- Jiaozhou Bay Bridge and Jiaozhou Bay Tunnel
- Jintang Bridge
- Pingtan Strait Road–Rail Bridge
- Xiamen Zhangzhou Bridge
- Xihoumen Bridge
- Zhanjiang Bay Bridge
- Zhujiajian Strait Bridge
- Øresund Bridge
- Great Belt Bridge
- King Fahd Causeway
- Bandra–Worli Sea Link
- Pamban Bridge
- Mumbai Trans Harbour Link
- China Maldives Friendship Bridge
- Chesapeake Bay Bridge–Tunnel
- Hampton Roads Bridge–Tunnel
- Monitor–Merrimac Memorial Bridge–Tunnel
- Golden Gate Bridge
- Overseas Highway
- Confederation Bridge
- Tokyo Bay Aqua-Line
- Michael Davitt Bridge
- Amur Bay Bridge
- Kola Bay Bridge
- Russky Bridge
- Zolotoy Bridge
- Muksalma Dam
- Saint Petersburg Dam
- Western High-Speed Diameter
- Crimean Bridge
- Pelješac Bridge
Sea bridges under construction
Planned or proposed sea bridges
- Bohai Bay Bridge
- Gibraltar Bridge
- Strait of Messina Bridge
- Bridge of the Horns
- Bering Strait bridge
- Sakhalin bridge
- Sunda Strait Bridge
- Irish Sea Bridge
- Qatar Bahrain Causeway bridge
- Palk Strait Bridge
Former bridges
Sea tunnels
Existing sea tunnels
- Dalian Bay Subsea Tunnel
- Qingdao Jiaozhou Bay Tunnel
- Xiamen XiangAn Tunnel
- Xiamen–Haicang Undersea Tunnel
- Channel Tunnel
- Seikan Tunnel
Sea tunnels under construction
- Second Jiaozhou Bay Subsea Tunnel
- Shantou SuAi Bay Subsea Tunnel
- Shenzhen Mawan Cross-Sea Tunnel
- Xidian Bay Subsea Tunnel
- Fehmarn Belt fixed link
Planned or proposed sea tunnels
- Bohai Strait tunnel
- Japan–Korea Undersea Tunnel
- Qiongzhou Strait Tunnel
- Taiwan Strait Tunnel Project
- Sakhalin Tunnel