Courtesy Mike Hawkins, Iowa DNR
As you can see the footings for the new wing walls have been poured. The insulcrete mix is still causing some workability issues, but has improved since the initial pour on the building pad. I watched on Friday as the concrete got very thick and sticky towards the end of the pour. The contractor doesn’t have much time to work with it once it is in the form. The reinforcement is also unique – the white rebar is fiberglass which separates the green steel rebar isolating it electrically to prevent interference with the electrical field.
The contractor would like to have the vertical wing walls finished by the end of this week. The main section of the barrier should be ready for installation a week or two after that.
Conditions at the site continue to be good and work is progressing well.