US Army Corps of Engineers
Rock Island District

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  • Corps of Engineers to Increase Coralville Lake Outflows

    IOWA CITY, Iowa – The U.S. Army Corps of Engineers Rock Island District is temporarily increasing outflows at Coralville Lake from 6,000 cubic feet per second (cfs) to 10,000 cfs to expedite evacuation of flood waters from the reservoir. Seasonal constraints, typically used to reduce flood crests downstream, have also been raised from 14 to 19 feet at Lone Tree, Iowa, and from 21 to 25 feet at Wapello, Iowa, to assist in maintaining flood storage capacity within the reservoir.
  • Coralville Lake to Host Earth Day Celebration

    IOWA CITY, Iowa - Join the U.S. Army Corps of Engineers at Coralville Lake on Sunday, April 28 from 10 a.m. to 2 p.m. to celebrate Earth Day with a tree planting activity to help beautify the area by the dam.
  • Corps releases final report on deterring movement of Asian carp into the Great Lakes

    ROCK ISLAND, Illinois. - The U.S. Army Corps of Engineers has released The Great Lakes Mississippi River Interbasin Study – Brandon Road Final Integrated Feasibility Study and Environmental Impact Statement (GLMRIS-Brandon Road Report and EIS). A review period will run November 23 through December 24.
  • Lockport Lock and Dam Closes Temporarily Due to Gun Range Activity

    The U.S. Army Corps of Engineers, Rock Island District, temporarily closed the Lockport Lock and Dam today when crews at the lock became concerned about gun range activity in close proximity to lock operations.