Missouri River Flood of 2011: Transportation Impacts

In 2011, repeated rounds of heavy rain, coupled with record plains snow-pack runoff, pushed the Missouri River reservoirs to historic levels. Record level releases flooded downstream properties and engulfed Iowa's roadways from June through early October.

4,893 total views
  1. In 2011, repeated rounds of heavy rain, coupled with record plains snow-pack runoff, pushed the Missouri River reservoirs to historic levels. Record level releases flooded downstream properties and engulfed Iowa's roadways from June through early October. 
  2. From the beginning to the end of the months of flooding, release rates from Gavins Point Dam were the key to flood levels downstream and impacts to the transportation system. 

  3. Missouri River Flood Gavins Point Dam.avi
  4. On June 1, the first state highway in Iowa was impacted when the I-29/Hamilton Boulevard interchange in Sioux City was closed.
  5. Hamilton Boulevard in Sioux City - 6/16/11
  6. Some of the early signs of what was to come were seen along Iowa 2 between I-29 in Iowa and Nebraska City, Neb. Water was starting to slowly creep over the highway in early June. One eastbound lane of Iowa 2 was closed June 7.
  7. Missouri River Flood June 2011
  8. In Iowa, the battle against the rising Missouri River stretched from Hamburg in the south near the Missouri state line and Sioux City in the north at the South Dakota state line. In early June, preparations were being made in communities all along the river. 
  9. Missouri River Flooding Along I-29 At Iowa Border.
  10. Sioux City continued to brace for the flooding as more properties were consumed. 
  11. Tour of Sioux City to Omaha as they prepare for the Epic Missouri River Flood 2011
  12. Some areas along the Missouri River are unprotected by levees. Levees that do exist are owned by the U.S. Army Corps of Engineers, private citizens and local level system managers. The months of pressure on the levee systems make them all vulnerable to breach. 
  13. Hamburg, Iowa, prepared for what was forecast to be a full levee breach along an already weakened levee system along the Missouri River.  
  14. Army Expects Full Breach of Missouri River Levee
  15. As communities like Hamburg braced for the flooding, record water flow continued from the Missouri River dams.
  16. Missouri River Dams Releasing Record Water Flow
  17. By June 9, the flood waters along Iowa 2 near Nebraska City were narrowing the open lane of eastbound travel. 
Like
Share

Share

Facebook
Google+