Morgan City, Louisiana it soon replaced the Loganberry of California. According to the United States Census Bureau, the city has a total area of , of which is land and , or 4.03%, is water. If the Mississippi River were to experience a major course change in the vicinity of the Old River Control Structure or Morganza Spillway, the main channel of the river would likely enter the Gulf of Mexico near Morgan City instead of New Orleans. As of the census of 2000, there were 12,703 people, 5,037 households, and 3,394 families residing in the city. The population density was 2,166.5 people
Mississippi River Basin Model 1937, 1943, 1945 and 1952 were reproduced, as well as hypothetical floods at different periods of the year. Tests on individual problems were conducted until 1971 but high costs and growth of computer modelling meant that the facility was put on standby. The last use was in 1973, when a potentially catastrophic failure arose at the Old River Control Structure. The model was used to show that the untested Morganza Spillway could be opened effectively, without diverting polluted water through New Orleans and Baton Rouge, as well as identifying levees that required topping up. In 1993 the site was taken