Silt has been building at the Northcote and Colombia bridges causing a water jam. What is USACE doing to eliminate this problem?
Bridges in general do have some impact on the river flow and stages. Sometimes the impacts will be negligible, whereas in other cases, the impacts will be significant. These impacts are dependent on many factors. The hydraulic impacts of the Northcote Avenue and Columbia Avenue bridges have always been taken into account in the design of the Corps of Engineers Little Calumet River Project. The scope of Little Calumet River Project does not include bridge and channel modification work at the Northcote and Columbia Avenue bridges or other bridges. Any modifications to the channel beneath these bridges are the responsibility of the local governments that own the bridge. The State of Indiana Department of Natural Resources – Division of Water performed a survey of observed high water marks after the August 2007 flood on the Little Calumet River. These high water marks included four taken in the vicinity of Northcote Avenue (no survey was taken at Columbia Avenue). These surveyed high water
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