High water levels in the Mississippi River have caused all lock and dams to close between Bellevue, Iowa, and Gladstone, Illinois, according to the US Army Corps of Engineers (Corps).
Lock and Dams (L&D) 12-18 are closed as of 8 July, the Corps said. Water levels have reached the top of L&D 12 in Bellevue and L&D 11 in Dubuque, according to the National Weather Service.
The outflow at L&D 16 was at 255,000 cubic feet per second (cfs) as of 8 July, about 68pc more than the average of 80,000cfs this time of year, the Corps said.
It will be another two weeks until L&D 20 reopens, but L&Ds 11-15 could reopen as early as this weekend, the Corps said.
About 15 inches of rain fell in Dubuque over the past week, bringing the expected forecast up to 22.1ft, according to the National Oceanic and Atmospheric Administration. Flooding at Dubuque and other locations along the river are expected to drop from major to moderate levels this week.
L&D 19 reopened on 8 July as it fellow flood stage at 16ft, the Corps said. L&Ds 19, 21, and 22 are expected to remain open. The river widens around the locks, allowing for a greater outflow at higher water levels.
