Already in the lower DesPlaines River region.
http://nas.er.usgs.gov/queries/specimen ... nID=238509
They will hit my area that's for sure... Time will only tell..... Now if they are capable of jumping over the Hoffman Dam in Riverside which is about 6-7ft high, then you guys up north will have some issues.
Now why exactly does IL DNR preach on dam removal in some instances???? :lol: In cases like this, they can be beneficial.
Some other interesting links:
http://www.peoplelandandwater.gov/fws/f ... ldlife.cfm