What possible problems where there with vanports oregon’s location

Vanport was dramatically destroyed at 4:05 p.m. on May 30, 1948, when a 200-foot (60 m) section of a railroad berm holding back the Columbia River collapsed during a flood, killing 15 people. The city was underwater by nightfall, leaving 17,500 of its inhabitants homeless.

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the best description of the camp david accords is that it was the first time an arab nation had officially recognized the nation of israel.