Abandoned canal projects

shortest distance between the Gulf of Mexico and Pacific Ocean

proposed shipping route across Nicaragua

proposed canal across the Kra isthmus connecting the Gulf of Thailand with the Andaman Sea

water conveyance between Israel, Jordan and Palestine

thumbnail|Two suggested routes for Iranrud Iranrud () was a plan to build a canal from the Caspian Sea to the Persian Gulf. This concept has existed among some Iranian elites since at least the time of Nasser al-Din Shah Qajar but was first presented as a coherent technical plan by Hooman Farzad in 1966. Experts have since put forth various routes for the construction of this canal. Other proposed variations include a closed canal from the Caspian Sea to the Dasht-e Lut desert (Lut Canal) or connecting the Caspian Sea to Lake Urmia. The defunct Soviet government also showed interest in this pr

proposed shipping route through Saudi Arabia along its border with Qatar

canal

irrelevant canal

canal between Seoul and Busan, within South Korea

proposed canal